Product Description
Angular contact ball bearing BS4575TN1 45*75*15mm
Industrial robot bearings
Electric Motor bearings
Industrial kiln bearings
Product Description
| Structure | Angular contact ball bearing |
| Item No. | BS4575TN1 |
| Internal Diameter | 45mm |
| External Diameter | 75mm |
| Width | 15mm |
| 718 Series Angular Contact Bearings |
| 719 Series Angular Contact Bearings |
| H719 Series Angular Contact Bearings |
| 70 Series Angular Contact Bearings |
| H70 Series Angular Contact Bearings |
| B70 Series Angular Contact Bearings |
| 72 Series Angular Contact Bearings |
Company
HangZhou Auto Bearing Co., Ltd. is located in the industrial park of HangZhou,which is 1 of the 4 great ancient capitals of China.Our company is the member of China Bearing Industry Association,cooperating with State Quality Supervision and Testing Center for bearing.Our company is a professional bearing manufacturer which integrated with research ,development and marketing services.
Our major products include deep groove ball bearing, spherical roller bearing, slewing ring, crossed roller bearing and other all kinds of high precision bearings.Our products are widely applied to motor industry,mining metallurgy,wind power generation,petroleum drilling,automobile and motorcycle etc..
Our company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high precision and reliability bearings.Each process is in strict accordance with the ISO9001 quality management system,which effectively guarantees the precise of products and stability of the performance. AUTO bearings are mainly exported to the United states,South Korea,Europe,etc., which have reached the high level of foreign similar products.
The soul of our business culture is [Detail makes competitive, innovation makes first-class”.We believe the production and management philosophy of [quality wins ,casting competitive products”.The company adheres to the zero-defect quality management for meeting customer requirements.
Packing
A. plastic box & outer carton & pallets
B. plastic bag & box & carton & pallet
C. tube package & middle box & carton & pallet
D. Depends on your needs
Delivery
A. Most orders will be shipped within 3-5 days of payment being received.
B. Samples will be shipped by cov2urier as FedEx,UPS,DHL,etc.
Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 25° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Customization: |
Available
| Customized Request |
|---|
What are the potential challenges or limitations associated with using rolling contact bearings in various industries?
Rolling contact bearings offer numerous benefits and are widely used in various industries. However, there are certain challenges and limitations associated with their use. It is important to understand these potential issues to ensure proper application and mitigate any adverse effects. Here’s a detailed explanation of the challenges and limitations associated with using rolling contact bearings:
- Load Capacity:
While rolling contact bearings are designed to handle substantial loads, there are limitations to their load capacity. Exceeding the specified load limits can lead to premature wear, increased friction, and potentially catastrophic failure. It is crucial to consider the expected loads in the application and select bearings with appropriate load ratings and configurations. In some high-load applications, alternative bearing types, such as spherical roller bearings or tapered roller bearings, may be more suitable to handle the specific load requirements.
- Speed Limitations:
Rolling contact bearings have speed limitations that need to be considered in high-speed applications. At high rotational speeds, centrifugal forces can affect the performance and reliability of rolling contact bearings. The limitation is primarily due to factors such as the bearing’s internal clearance, cage design, lubrication, and the potential for increased heat generation. To overcome speed limitations, specialized high-speed bearings with improved designs and materials, such as ceramic balls or hybrid bearings, may be used in certain applications.
- Maintenance and Lubrication:
Proper maintenance and lubrication are essential for the reliable operation of rolling contact bearings. Inadequate lubrication or improper maintenance practices can result in increased friction, heat buildup, and premature wear. It is important to follow the manufacturer’s recommendations for lubrication intervals, lubricant selection, and application methods. In some applications, such as high-temperature environments or extreme operating conditions, special considerations may be required to ensure effective lubrication and prevent bearing failure.
- Environmental Factors:
Rolling contact bearings can be sensitive to certain environmental factors. Exposure to contaminants, such as dirt, dust, moisture, or aggressive chemicals, can lead to accelerated wear and corrosion. In industries where the operating environment is harsh or contaminated, additional protective measures, such as sealing arrangements or the use of specialized coatings, may be necessary to enhance the bearing’s resistance to environmental factors. It is important to evaluate the specific environmental conditions and select bearings that are suitable for the intended application.
- Installation and Alignment:
Improper installation or misalignment of rolling contact bearings can result in reduced performance and premature failure. Achieving accurate alignment and proper fitment during installation is crucial. Misalignment can lead to increased friction, uneven load distribution, and potential damage to the bearing surfaces. It is necessary to follow the manufacturer’s installation guidelines, use appropriate tools, and employ precision alignment techniques to ensure optimal performance and longevity of the bearings.
- Size and Space Constraints:
In some applications, size and space constraints may limit the use of rolling contact bearings. The available space for bearing installation may be limited, requiring the use of compact or specialized bearing designs. Additionally, certain applications may demand high load-carrying capacity within a restricted envelope, necessitating careful bearing selection and possibly the use of alternative bearing types. It is important to consider the space limitations and select bearings that can accommodate the specified requirements while fitting within the available space.
While rolling contact bearings offer numerous advantages, it is essential to be aware of the potential challenges and limitations associated with their use. By understanding these factors and taking appropriate measures, such as careful selection, proper maintenance, and adherence to installation guidelines, the performance and reliability of rolling contact bearings can be optimized in various industries and applications.
Can you provide guidance on the selection and sizing of rolling contact bearings for specific applications?
Yes, I can provide guidance on the selection and sizing of rolling contact bearings for specific applications. Choosing the right rolling contact bearings involves considering various factors such as load requirements, operating conditions, speed, and environmental factors. Here’s a detailed explanation of the steps involved in selecting and sizing rolling contact bearings:
- Identify Application Requirements:
Start by identifying the specific requirements of your application. Consider factors such as the type and magnitude of the loads the bearing will be subjected to, the operating speed, and any special environmental conditions like temperature, moisture, or exposure to corrosive substances. Understanding these requirements is crucial as it forms the basis for selecting the appropriate rolling contact bearing.
- Analyze Load Conditions:
Next, analyze the load conditions acting on the bearing. Determine if the load is radial, axial, or a combination of both. Consider factors such as the magnitude, direction, and frequency of the load. This analysis helps in determining the appropriate bearing type, such as deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings, or tapered roller bearings, that can handle the specific load conditions effectively.
- Calculate Equivalent Load:
Calculate the equivalent load acting on the bearing. In cases where the load acting on the bearing is a combination of radial and axial loads, it is necessary to calculate the equivalent load. The equivalent load accounts for the differing effects of radial and axial loads on the bearing and helps in determining the required bearing size and capacity.
- Consider Speed and Operating Conditions:
Take into account the speed at which the bearing will operate and the specific operating conditions. Higher speeds may require bearings with special design features or materials to handle the increased centrifugal forces and temperature rise. Consider factors such as lubrication requirements, temperature limits, and any special considerations for factors like shock loads, vibrations, or misalignment. These factors influence the selection of appropriate bearing types and configurations.
- Consult Bearing Manufacturer’s Catalogs:
Refer to the catalogs or technical specifications provided by bearing manufacturers. These catalogs contain detailed information about various bearing types, sizes, load ratings, and performance characteristics. Use the information provided to narrow down the options based on your application requirements and load calculations.
- Verify Bearing Life:
Check the calculated bearing life to ensure it meets the required operational lifespan of your application. Bearing manufacturers provide life calculation formulas based on industry standards such as ISO or ABMA. These formulas take into account factors like load, speed, and reliability requirements to estimate the expected bearing life. Verify that the selected bearing will provide the desired operational lifespan under the given operating conditions.
- Consider Mounting and Dismounting:
Lastly, consider the ease of mounting and dismounting the bearing in your specific application. Evaluate factors such as the bearing’s fit tolerance, the required clearance or preload, and any special mounting or dismounting procedures. Ensure that the selected bearing can be easily installed and maintained in your application.
It is important to note that the selection and sizing of rolling contact bearings can be complex, and it is advisable to seek the assistance of bearing manufacturers, engineers, or experts in the field to ensure the optimal selection for your specific application.
How do rolling contact bearings contribute to reduced friction and improved efficiency in machinery?
Rolling contact bearings play a crucial role in reducing friction and improving the efficiency of machinery. They achieve this through several design features and operating characteristics. Here’s a detailed explanation of how rolling contact bearings contribute to reduced friction and improved efficiency:
- Rolling Motion:
Unlike sliding contact bearings, which rely on sliding friction between surfaces, rolling contact bearings utilize rolling motion between the rolling elements (balls or rollers) and the raceways. This rolling motion significantly reduces friction compared to sliding friction, resulting in lower energy losses and improved efficiency. The rolling contact between the elements and the raceways minimizes surface contact and allows smooth rotation with reduced frictional resistance.
- Lubrication:
Rolling contact bearings are typically lubricated with oils or greases to further reduce friction and wear. Lubricants form a thin film between the rolling elements and the raceways, providing a protective layer that separates the surfaces and minimizes direct metal-to-metal contact. This lubricating film reduces friction and dissipates heat generated during operation, contributing to smoother rotation and improved efficiency.
- Reduced Sliding Friction:
As mentioned earlier, rolling contact bearings rely on rolling motion rather than sliding friction. This design characteristic reduces the occurrence of sliding friction between the bearing components, resulting in lower frictional forces and decreased energy losses. The reduced sliding friction contributes to improved efficiency and can translate into energy savings in various machinery applications.
- Load Distribution:
Rolling contact bearings distribute loads more evenly compared to sliding contact bearings. The rolling elements in a bearing share the load and distribute it over a larger contact area, reducing localized stress and minimizing friction. This load distribution characteristic helps prevent excessive wear and prolongs the service life of the bearing. By maintaining efficient load distribution, rolling contact bearings contribute to improved efficiency and reliability in machinery.
- High-Speed Capability:
Rolling contact bearings are well-suited for high-speed applications due to their low friction characteristics. The rolling motion and reduced sliding friction allow these bearings to rotate at higher speeds with minimal heat generation. This high-speed capability is essential for various machinery, such as electric motors, machine tools, and automotive components, where efficient power transmission and rotational precision are critical for optimal performance and efficiency.
In summary, rolling contact bearings contribute to reduced friction and improved efficiency in machinery through their rolling motion, effective lubrication, reduced sliding friction, even load distribution, and high-speed capability. These design features and operating characteristics minimize energy losses, reduce wear, and enhance the overall performance and reliability of machinery in a wide range of industries.
editor by CX 2024-05-15
China wholesaler Machine Tool Bearing Import CZPT Brand 7019c 7011CTA Angular Contact Ball Bearing bearing example
Product Description
Product Description
| Item | Value |
| Type | ball bearing |
| Structure | cage |
| Applicable Industries | Energy & Mining |
| Brand Name | TIMKEN/KOYO/NTN/NSK |
| Precision Rating | P0 P4 P5 P6 |
| Seals Type | OPEN |
| Number of Row | Double Rows |
| Place of Origin | China |
Angular Contact Ball Bearings can bear both radial load and axial load. Can work at higher speeds. The larger the contact angle, the higher the axial load capacity. High-precision and high-speed bearings usually have a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase.
Angular contact bearings are ideal for use in gearboxes, pumps, electric motors, and clutches or other high-speed applications.They are commonly used in the Materials Handling, Machine Tool, Steel Mill, and Wind Energy industries.
Although angular contact bearings can accept thrust loads in only 1 direction, they can be manufactured at different contact angles (usually between 0 and 45 degrees) to transfer the load acting upon the bearing.
| Model | d mm | D mm | H mm | W kg |
| 7000AC | 10 | 26 | 8 | 0.02 |
| 7001AC | 12 | 28 | 8 | 0.02 |
| 7002AC | 15 | 32 | 9 | 0.03 |
| 7003AC | 17 | 35 | 10 | 0.03 |
| 7004AC | 20 | 42 | 12 | 0.07 |
| 7005AC | 25 | 47 | 12 | 0.08 |
| 7006AC | 30 | 55 | 13 | 0.12 |
| 7007AC | 35 | 62 | 14 | 0.14 |
| 7008AC | 40 | 68 | 15 | 0.21 |
| 7009AC | 45 | 75 | 16 | 0.24 |
| 7571AC | 50 | 60 | 16 | 0.26 |
Product Display
Company Profile
ZheJiang Ponchi New Energy Technology Co., Ltd. is establised in2571, The company is mainly committed to the promotion and sales of world-famous bearing brands.Over the years it has established good cooperative relations with many companies,with a wide range of products lt is used in machinery, mining,steel.electric paper, automobile and other fields.
With reasonable commodity price,fast logistics delivery,high-quality service, and strong technical force, the company has won the support and trustof customers and truly achieved a CZPT situation between the company and customers.
“Customer’s requirement is our pursuit” the company will always adhere to the new concept of people-oriented, customer service, keeping pace with the times, development and innovation”.
Certifications
Cooperation brand
Packaging & Shipping
FAQ
1. Who are we?
We are based in ZheJiang , China, start from 2019,sell to South America(30.00%),Mid East(25.00%),North
America(20.00%),Africa(15.00%),Southeast Asia(10.00%). There are total about 1000+ people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
bearing,ball bearing,Roller bearing,Deep groove ball bearing,Tapered roller bearing
4. Why should you buy from us not from other suppliers?
We have more than 20 years of production experience, we have enough inventory to provide you with a full range of bearings, we
have efficient delivery speed, and can provide you with the packaging you need
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 15° |
|---|---|
| Aligning: | Aligning Bearing |
| Separated: | Unseparated |
| Samples: |
US$ 8.01/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Can you explain the installation and alignment considerations for rolling contact bearings?
Proper installation and alignment are crucial for the optimal performance and longevity of rolling contact bearings. Incorrect installation or misalignment can lead to premature wear, increased friction, reduced load-carrying capacity, and potential bearing failure. Here’s a detailed explanation of the installation and alignment considerations for rolling contact bearings:
- Clean and Proper Workspace:
Before installing rolling contact bearings, it is essential to ensure a clean and suitable workspace. The work area should be free from dirt, dust, debris, and contaminants that could enter the bearing during installation. Contamination can cause damage to the bearing surfaces and compromise its performance. Additionally, the workspace should have appropriate tools and equipment to facilitate the installation process, including bearing pullers, mounting tools, and measurement instruments.
- Handling and Storage:
Rolling contact bearings should be handled with care to prevent damage to the bearing surfaces. They should be stored in a clean and dry environment, protected from moisture, dust, and extreme temperatures. During handling, it is important to avoid dropping or impacting the bearings, as this can cause surface damage or internal defects. Proper handling and storage practices help maintain the integrity of the bearings and ensure their performance during installation.
- Shaft and Housing Preparation:
Prior to installing the rolling contact bearings, the shaft and housing surfaces must be prepared appropriately. The shaft and housing should be clean, free from burrs, and have the correct dimensions and tolerances specified by the bearing manufacturer. Any roughness or irregularities on the shaft or housing can affect the fit and alignment of the bearing, leading to performance issues. It may be necessary to use appropriate tools, such as emery cloth or a deburring tool, to smooth the surfaces and ensure proper fitment.
- Bearing Mounting:
When mounting rolling contact bearings, it is essential to follow the manufacturer’s recommended procedures and guidelines. This includes using the appropriate mounting tools and techniques to apply the necessary axial or radial force evenly during installation. Overloading or uneven force application can lead to bearing damage or misalignment. Proper mounting techniques may involve using a press, heat, or specialized mounting tools to ensure the bearing is seated securely and accurately on the shaft or in the housing.
- Alignment:
Accurate alignment of rolling contact bearings is critical for their optimal performance. Misalignment can cause increased friction, premature wear, and reduced load-carrying capacity. It is important to align the bearing with respect to the shaft and housing to ensure proper concentricity and parallelism. Alignment methods may include visual alignment, feeler gauges, dial indicators, laser alignment systems, or other precision alignment tools. The specific alignment requirements may vary depending on the bearing type, application, and manufacturer recommendations.
- Lubrication:
Proper lubrication is essential during the installation of rolling contact bearings. The bearing manufacturer’s recommendations should be followed regarding the type, quantity, and method of lubrication. Lubrication helps reduce friction, dissipate heat, and protect against wear and corrosion. It is important to ensure that the bearing is adequately lubricated during installation to facilitate smooth operation and prevent damage.
- Verification and Testing:
After installation, it is recommended to verify the proper fitment, alignment, and operation of the rolling contact bearings. This may involve checking the axial and radial clearances, measuring runout, and performing functional tests to ensure smooth rotation and proper load distribution. Verification and testing help confirm the successful installation and identify any potential issues that may require adjustment or corrective action.
In summary, proper installation and alignment considerations are essential for the optimal performance and longevity of rolling contact bearings. Following recommended procedures, handling the bearings carefully, preparing the shaft and housing surfaces, ensuring accurate alignment, and providing appropriate lubrication contribute to the successful installation and reliable operation of rolling contact bearings in various applications.
What is the role of cage design and materials in rolling contact bearing performance and durability?
The cage design and materials used in rolling contact bearings play a crucial role in their performance and durability. Here’s a detailed explanation of the role of cage design and materials in rolling contact bearing performance and durability:
- Function of the Cage:
The cage, also known as the bearing retainer or separator, holds and separates the rolling elements in a rolling contact bearing. Its primary function is to maintain the proper spacing and alignment of the rolling elements, allowing them to roll smoothly and distribute the load evenly. The cage prevents the rolling elements from contacting each other, reducing friction, wear, and the risk of damage. By guiding the rolling elements, the cage also helps to minimize the centrifugal forces and maintain stability at high speeds. The design and materials of the cage directly influence these functions and, consequently, the overall performance and durability of the bearing.
- Cage Design Considerations:
The design of the cage is carefully considered to ensure optimal bearing performance and durability. Some key design considerations include:
- Material Compatibility: The cage material must be compatible with the operating conditions and lubricants used in the bearing. It should have sufficient strength, hardness, and resistance to wear and fatigue. Different applications may require cages made from materials such as steel, brass, synthetic polymers, or composite materials.
- Friction and Heat Generation: The cage design should minimize friction between the rolling elements and the cage itself. Reduced friction helps improve energy efficiency, reduce heat generation, and extend the bearing’s service life.
- Load Distribution: The cage design should facilitate even load distribution among the rolling elements. This ensures that the forces acting on the bearing are evenly distributed, reducing stress concentrations and the risk of premature failure.
- High-Speed Capability: The cage design should be optimized to handle high-speed applications. It should be lightweight, promote efficient lubricant flow, and minimize windage losses caused by air turbulence at high rotational speeds.
- Alignment and Stability: The cage design should promote proper alignment and stability of the rolling elements, especially during rapid accelerations, decelerations, or changes in direction. This helps maintain smooth operation and prevents the rolling elements from skewing or becoming misaligned.
- Cage Material Selection:
The choice of cage material depends on factors such as the operating conditions, load requirements, lubrication, and cost considerations. Commonly used cage materials include:
- Steel: Steel cages offer excellent strength, durability, and resistance to high temperatures. They are commonly used in applications with heavy loads, high speeds, and high operating temperatures.
- Brass: Brass cages provide good strength, corrosion resistance, and low friction. They are suitable for applications where low noise and vibration levels are important, such as in precision instruments and industrial machinery.
- Synthetic Polymers: Synthetic polymer cages, such as polyamide (nylon) or polyetheretherketone (PEEK), offer advantages such as low friction, lightweight, corrosion resistance, and the ability to dampen vibrations. They are commonly used in applications where reducing friction, noise, and weight are critical, such as in automotive and aerospace industries.
- Composite Materials: Composite cages combine different materials to achieve specific properties such as high strength, low friction, or resistance to harsh environments. These cages are used in specialized applications where unique material properties are required.
The selection of the cage design and materials is a critical aspect of rolling contact bearing design. Careful consideration of the operating conditions, load requirements, speed, and other factors helps ensure optimal performance, reliability, and durability of the bearing.
What are the common types of rolling contact bearings, such as ball bearings or roller bearings?
Rolling contact bearings are available in various types, each designed to accommodate specific load capacities, speeds, and application requirements. The most common types of rolling contact bearings include ball bearings and roller bearings. Here’s a detailed explanation of these common types:
- Ball Bearings:
Ball bearings are the most widely used type of rolling contact bearings. They consist of one or more rows of balls placed between two rings—an inner ring and an outer ring. The balls roll along the raceways formed on the rings, enabling smooth and low-friction rotation. Ball bearings are known for their high rotational speeds, low starting torque, and relatively low load capacity compared to roller bearings.
There are several variations within the category of ball bearings, including:
- Deep Groove Ball Bearings: These ball bearings have deep raceway grooves, allowing them to accommodate both radial and axial loads. They are commonly used in applications such as electric motors, appliances, and automotive components.
- Angular Contact Ball Bearings: Angular contact ball bearings can handle both radial and axial loads. They have an angled contact surface between the balls and the raceways, enabling them to support higher axial loads and facilitate combined radial and axial movements. These bearings are often used in machine tools, pumps, and gearboxes.
- Thrust Ball Bearings: Thrust ball bearings are designed to support axial loads in a single direction. They consist of two rings with a set of balls sandwiched between them. Thrust ball bearings are commonly used in applications such as automotive transmissions and steering systems.
- Roller Bearings:
Roller bearings, as the name implies, utilize cylindrical or tapered rollers instead of balls to facilitate motion. Roller bearings are capable of handling higher loads and are often used in heavy-duty applications. The common types of roller bearings include:
- Cylindrical Roller Bearings: Cylindrical roller bearings feature cylindrical rollers that provide a large contact area with the raceways. They can accommodate high radial loads and moderate axial loads. Cylindrical roller bearings are commonly used in applications such as machine tool spindles, electric motors, and gearboxes.
- Tapered Roller Bearings: Tapered roller bearings consist of tapered rollers and inner and outer rings with tapered raceways. They can support both radial and axial loads in a single direction. Tapered roller bearings are commonly used in automotive wheel bearings, heavy machinery, and construction equipment.
- Spherical Roller Bearings: Spherical roller bearings have barrel-shaped rollers and two raceways on the inner and outer rings that are inclined relative to the bearing axis. This design allows them to accommodate misalignment and axial displacement. Spherical roller bearings are commonly used in applications with heavy loads, such as mining equipment, paper mills, and crushers.
- Needle Roller Bearings: Needle roller bearings use long, thin rollers that have a high length-to-diameter ratio. They are suitable for applications with limited radial space and high load capacity. Needle roller bearings are commonly used in automotive transmissions, industrial gearboxes, and motorcycle engines.
These are some of the common types of rolling contact bearings, including ball bearings and roller bearings. Each type has its own advantages and is suitable for specific applications based on factors such as load requirements, speed, and space limitations.
editor by CX 2024-05-13
China OEM 71813c/AC/B High-Speed Angular Contact Ball Bearings P6/P5/P4/P2 Used in Machine Tool Spindles bearing example
Product Description
This type of bearing is used to bear heavier radial-axial combined loads with limit rotational speeds higher. The bearings are mainly applied to the construction parts that limit axial displacement of the axis or housing in double directions.
The bearing is used with 4 row cylindrical roller bearings limiting the axial motion of roll in rolling mill the axial load capactiy is heavier than four-point contact ball ebearings incomparison with paiy mounted in back-to-back, face-to-face arvangements single row angular contact ball bearings units, the axial clearance of the bearing doesn’t need adjustment, these bearings can be mounted with ease and there can be 2 types: 2 half-outer-rings and 2 half-inner-rings according to the installation need of customers.
| Bearing Designations | Boundary Dimensions(mm) | Load rating (KN) |
Limiting Speed (r/min) | Mass kg |
||||||||||||
| 71813 C | d | D | B | Rsmin | Rlsmin | a | Dynamic Cr | Static Cor | Grease | Oil | ||||||
| 65 | 85 | 10 | 0.60 | 0.15 | 15 | 13.4 | 18.8 | 14000 | 22000 | 0.125 | ||||||
| 718 Series Angular Contact Bearings |
| 719 Series Angular Contact Bearings |
| H719 Series Angular Contact Bearings |
| 70 Series Angular Contact Bearings |
| H70 Series Angular Contact Bearings |
| B70 Series Angular Contact Bearings |
| 72 Series Angular Contact Bearings |
Company
HangZhou Auto Bearing Co., Ltd. is located in the industrial park of HangZhou,which is 1 of the 4 great ancient capitals of China.Our company is the member of China Bearing Industry Association,cooperating with State Quality Supervision and Testing Center for bearing.Our company is a professional bearing manufacturer which integrated with research ,development and marketing services.
Our major products include deep groove ball bearing, spherical roller bearing, slewing ring, crossed roller bearing and other all kinds of high precision bearings.Our products are widely applied to motor industry,mining metallurgy,wind power generation,petroleum drilling,automobile and motorcycle etc..
Our company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high precision and reliability bearings.Each process is in strict accordance with the ISO9001 quality management system,which effectively guarantees the precise of products and stability of the performance. AUTO bearings are mainly exported to the United states,South Korea,Europe,etc., which have reached the high level of foreign similar products.
The soul of our business culture is [Detail makes competitive, innovation makes first-class”.We believe the production and management philosophy of [quality wins ,casting competitive products”.The company adheres to the zero-defect quality management for meeting customer requirements.
Packing
A. plastic box & outer carton & pallets
B. plastic bag & box & carton & pallet
C. tube package & middle box & carton & pallet
D. Depends on your needs
Delivery
A. Most orders will be shipped within 3-5 days of payment being received.
B. Samples will be shipped by cov2urier as FedEx,UPS,DHL,etc.
Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 15°/25°/40° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How do rolling contact bearings perform in high-speed or high-load applications?
Rolling contact bearings are designed to perform effectively in high-speed and high-load applications. Their specific design features and characteristics allow them to withstand the demands and challenges associated with these conditions. Here’s a detailed explanation of how rolling contact bearings perform in high-speed or high-load applications:
- High-Speed Performance:
Rolling contact bearings are well-suited for high-speed applications due to their low friction characteristics. The rolling motion between the rolling elements and the raceways minimizes friction and heat generation, enabling smooth rotation at high speeds. The design of rolling contact bearings, including the selection of suitable materials and precision manufacturing, ensures the balance between load-carrying capacity and reduced friction at high speeds. As a result, these bearings can operate efficiently and reliably in applications such as electric motors, machine tools, turbochargers, and aerospace systems that require rapid and precise rotational motion.
- High-Load Capacity:
Rolling contact bearings are engineered to handle high loads and distribute them effectively. The rolling elements in the bearings, such as balls or rollers, distribute the applied loads over a larger contact area, reducing stress concentrations and preventing premature failure. The materials used in rolling contact bearings, such as high-grade steels and specialized alloys, provide the necessary strength and durability to withstand heavy loads. Additionally, the design of the bearing, including the number and size of the rolling elements, the geometry of the raceways, and the cage construction, is optimized to maximize load-carrying capacity. This enables rolling contact bearings to perform reliably in high-load applications, including heavy machinery, automotive drivetrains, construction equipment, and industrial processes.
- Lubrication for High-Speed and High-Load Conditions:
Lubrication is crucial for the performance of rolling contact bearings in high-speed or high-load applications. The lubricant helps reduce friction, dissipate heat, and prevent wear and damage to the bearing surfaces. For high-speed applications, specialized lubricants with low viscosity and high thermal stability are often used to ensure efficient lubrication and prevent excessive heat buildup. In high-load applications, lubrication plays a vital role in load distribution and reducing the risk of premature failure due to excessive stress. Proper lubrication selection and maintenance are essential to ensure optimal performance and longevity of rolling contact bearings under high-speed or high-load conditions.
- Preload and Stiffness:
In certain high-speed or high-load applications, rolling contact bearings may be preloaded to enhance their stiffness and improve their performance. Preload is a controlled axial force applied to the bearing that eliminates internal clearances and minimizes deflection under load. By applying preload, the rolling contact bearings can maintain their dimensional stability, minimize vibration, and enhance their ability to handle high-speed or high-load conditions. Preload is commonly utilized in precision machine tools, spindle bearings, and other applications where rotational accuracy and rigidity are critical.
In summary, rolling contact bearings perform exceptionally well in high-speed or high-load applications. They are designed to minimize friction, handle heavy loads, and maintain operational integrity under demanding conditions. Through their low friction characteristics, high-load capacity, appropriate lubrication, and potential use of preload, rolling contact bearings ensure reliable and efficient operation in various industries and applications requiring high-speed or high-load capabilities.
What are the eco-friendly or sustainable aspects of rolling contact bearing materials?
Rolling contact bearing materials can contribute to eco-friendliness and sustainability in several ways. Here’s a detailed explanation of the eco-friendly and sustainable aspects of rolling contact bearing materials:
- Recyclability:
Many rolling contact bearing materials, such as steel and certain types of alloys, are highly recyclable. At the end of their service life, bearings can be dismantled, and the materials can be recycled or reused. Recycling bearings helps reduce the demand for raw materials, conserves energy, and minimizes waste generation. By promoting a circular economy, the recyclability of bearing materials contributes to resource conservation and waste reduction.
- Energy Efficiency:
Rolling contact bearings play a crucial role in improving energy efficiency in various applications. By reducing friction and minimizing power losses, bearings help optimize the performance of machinery and equipment. When machines operate more efficiently, they consume less energy, leading to reduced greenhouse gas emissions and lower carbon footprints. The use of high-quality bearing materials, coatings, and lubricants further enhances energy efficiency by minimizing frictional losses.
- Long Service Life:
Rolling contact bearings are designed to have long service lives under normal operating conditions. Their ability to withstand heavy loads, resist wear, and operate reliably contributes to extended equipment lifetimes. By reducing the frequency of bearing replacements, industries can minimize material consumption, waste generation, and environmental impact associated with manufacturing and disposal processes. The longer service life of rolling contact bearings promotes sustainability by reducing resource consumption and improving equipment lifecycle management.
- Reduced Maintenance:
The use of high-quality rolling contact bearing materials can contribute to reduced maintenance requirements. Bearings that are resistant to wear, corrosion, and fatigue offer longer maintenance intervals, reducing the need for frequent inspections, replacements, and repairs. This not only saves time and labor but also reduces the consumption of maintenance-related resources such as lubricants and spare parts. The reduced maintenance needs of rolling contact bearings contribute to sustainable operations by optimizing resource utilization and minimizing maintenance-related waste.
- Environmental Compliance:
Rolling contact bearing materials are subject to various environmental regulations and standards. Manufacturers strive to comply with these regulations by ensuring that their materials are free from hazardous substances or restricted substances. Compliance with regulations such as the Restriction of Hazardous Substances (RoHS) directive helps prevent the use of environmentally harmful materials, reducing the potential environmental impact during the manufacturing, use, and disposal stages of rolling contact bearings.
Overall, rolling contact bearing materials offer several eco-friendly and sustainable aspects, including recyclability, energy efficiency, long service life, reduced maintenance requirements, and compliance with environmental regulations. These aspects contribute to resource conservation, waste reduction, energy savings, and minimized environmental impact throughout the lifecycle of rolling contact bearings.
How do rolling contact bearings contribute to reduced friction and improved efficiency in machinery?
Rolling contact bearings play a crucial role in reducing friction and improving the efficiency of machinery. They achieve this through several design features and operating characteristics. Here’s a detailed explanation of how rolling contact bearings contribute to reduced friction and improved efficiency:
- Rolling Motion:
Unlike sliding contact bearings, which rely on sliding friction between surfaces, rolling contact bearings utilize rolling motion between the rolling elements (balls or rollers) and the raceways. This rolling motion significantly reduces friction compared to sliding friction, resulting in lower energy losses and improved efficiency. The rolling contact between the elements and the raceways minimizes surface contact and allows smooth rotation with reduced frictional resistance.
- Lubrication:
Rolling contact bearings are typically lubricated with oils or greases to further reduce friction and wear. Lubricants form a thin film between the rolling elements and the raceways, providing a protective layer that separates the surfaces and minimizes direct metal-to-metal contact. This lubricating film reduces friction and dissipates heat generated during operation, contributing to smoother rotation and improved efficiency.
- Reduced Sliding Friction:
As mentioned earlier, rolling contact bearings rely on rolling motion rather than sliding friction. This design characteristic reduces the occurrence of sliding friction between the bearing components, resulting in lower frictional forces and decreased energy losses. The reduced sliding friction contributes to improved efficiency and can translate into energy savings in various machinery applications.
- Load Distribution:
Rolling contact bearings distribute loads more evenly compared to sliding contact bearings. The rolling elements in a bearing share the load and distribute it over a larger contact area, reducing localized stress and minimizing friction. This load distribution characteristic helps prevent excessive wear and prolongs the service life of the bearing. By maintaining efficient load distribution, rolling contact bearings contribute to improved efficiency and reliability in machinery.
- High-Speed Capability:
Rolling contact bearings are well-suited for high-speed applications due to their low friction characteristics. The rolling motion and reduced sliding friction allow these bearings to rotate at higher speeds with minimal heat generation. This high-speed capability is essential for various machinery, such as electric motors, machine tools, and automotive components, where efficient power transmission and rotational precision are critical for optimal performance and efficiency.
In summary, rolling contact bearings contribute to reduced friction and improved efficiency in machinery through their rolling motion, effective lubrication, reduced sliding friction, even load distribution, and high-speed capability. These design features and operating characteristics minimize energy losses, reduce wear, and enhance the overall performance and reliability of machinery in a wide range of industries.
editor by CX 2024-05-09
China supplier Best Price Angular Contact Ball Bearing 7308AC 7309AC 7310AC 7311AC for Machine Tool Spindle, High Frequency Motor bearing driver kit
Product Description
Product Description
The characteristic of angular contact bearing is that it can bear both radial load and single axial load. The larger the contact Angle, the larger the axial load, the smaller the contact Angle, the smaller the axial load. Conversely, the smaller the contact Angle, the greater the ability to bear radial loads, and the more suitable for high-speed applications. According to different working conditions, it can be combined in a variety of ways to obtain different radial and axial load capacity, and meet the requirements of high speed and diameter, and high axial stiffness.
Angular contact ball bearing accuracy class includes dimensional tolerance and rotation accuracy. From low to high accuracy is expressed as P0(ordinary), P6(P6X), P5, P4, P2, in addition, P3, P7, P9 are also used in European and American brands to indicate accuracy levels, P3 is equivalent to level P6 of ISO and JS standards, P7 is equivalent to level P4, and P9 is equivalent to level P2.
Product Parameters
Product Specification
Single Row Angular Contact Ball Bearing
| Bearing type | Boundary Dimensions(mm) | Load Rating (kn) |
Speed Rating(ipm) | Weight | |||||
| New Model | Old Model | d | D | B | Dymamic Cr | Static Cor | Grease lubrication |
Oil lubrication |
Weight (kg) |
| 7000AC | 46100 | 10 | 26 | 8 | 5 | 2.35 | 34000 | 42000 | 0.571 |
| 7001AC | 46101 | 12 | 28 | 8 | 5.4 | 2.75 | 29000 | 37000 | 0.571 |
| 7002AC | 46102 | 15 | 32 | 9 | 6.1 | 3.45 | 26000 | 32000 | 0.035 |
| 7003AC | 46103 | 17 | 35 | 10 | 6.75 | 4.15 | 23000 | 28000 | 0.045 |
| 7004AC | 46104 | 20 | 42 | 12 | 10.3 | 6.1 | 19000 | 24000 | 0.079 |
| 7005AC | 46105 | 25 | 47 | 12 | 11.3 | 7.4 | 17000 | 21000 | 0.091 |
| 7006AC | 46106 | 30 | 55 | 13 | 14.5 | 10.1 | 14000 | 18000 | 0.133 |
| 7007AC | 46107 | 35 | 62 | 14 | 17.5 | 12.6 | 12000 | 15000 | 0.17 |
| 7008AC | 46108 | 40 | 68 | 15 | 18.7 | 14.6 | 11000 | 14000 | 0.21 |
| 7009AC | 46109 | 45 | 75 | 16 | 22.2 | 17.7 | 10000 | 12000 | 0.26 |
| 7571AC | 46110 | 50 | 80 | 16 | 23.6 | 20.1 | 9200 | 11000 | 0.29 |
| 7011AC | 46111 | 55 | 90 | 18 | 31.1 | 26.3 | 8300 | 10000 | 0.42 |
| 7012AC | 46112 | 60 | 95 | 18 | 31.9 | 28.1 | 7700 | 9700 | 0.45 |
| 7013AC | 46113 | 65 | 100 | 18 | 33.7 | 31.4 | 7200 | 9000 | 0.47 |
| 7014AC | 46114 | 70 | 110 | 20 | 42.7 | 39.4 | 8300 | 0.66 | |
| 7015AC | 46115 | 75 | 115 | 20 | 43.6 | 41.7 | 6300 | 7800 | 0.69 |
| 7016AC | 46116 | 80 | 125 | 22 | 53.4 | 50.6 | 5800 | 7200 | 0.93 |
| 7017AC | 46117 | 85 | 130 | 22 | 54.6 | 53.7 | 5500 | 6800 | 0.97 |
| 7018AC | 46118 | 90 | 140 | 24 | 65.2 | 63.3 | 5100 | 6400 | 1.26 |
| 7019AC | 46119 | 95 | 145 | 24 | 66.6 | 67.1 | 4800 | 6000 | 1.32 |
| 7571AC | 46120 | 100 | 150 | 24 | 68.4 | 70.6 | 4700 | 5900 | 1.37 |
| 7571AC | 46121 | 105 | 160 | 26 | 79.8 | 81.9 | 4400 | 5500 | 1.73 |
| 7571AC | 46122 | 110 | 170 | 28 | 91.9 | 92.8 | 4200 | 5200 | 2.14 |
| 7571AC | 46124 | 120 | 180 | 28 | 96.6 | 103 | 3900 | 4900 | 2.27 |
| 7026AC | 46126 | 130 | 200 | 33 | 117 | 125 | 3500 | 4400 | 3.43 |
| 7571AC | 46128 | 140 | 210 | 33 | 120 | 133 | 3300 | 4100 | 3.64 |
| 7030AC | 46130 | 150 | 225 | 35 | 137 | 154 | 3000 | 3800 | 4.43 |
| 7032AC | 46132 | 160 | 240 | 38 | 5.02 | ||||
| 7034AC | 46134 | 170 | 260 | 42 | 186 | 214 | 2600 | 3200 | 7.56 |
| 7038AC | 46138 | 190 | 290 | 46 | 217 | 268 | 2300 | 2800 | 10.8 |
| 7040AC | 46140 | 200 | 310 | 51 | 244 | 309 | 2100 | 2600 | 12.7 |
| Bearing type | Boundary Dimensions(mm) | Load Rating (kn) |
Speed Rating(ipm) | Weight | |||||
| New Model | Old Model | d | D | B | Dymamic Cr | Static Cor | Grease lubrication |
Oil lubrication |
Weight (kg) |
| 7200AC | 46200 | 10 | 30 | 9 | 4.65 | 2.2 | 29000 | 37000 | 0.031 |
| 7201AC | 46201 | 12 | 32 | 10 | 7.45 | 3.65 | 27000 | 34000 | 0.038 |
| 7202AC | 46202 | 15 | 35 | 11 | 8.1 | 4.25 | 24000 | 29000 | 0.048 |
| 7203AC | 46203 | 17 | 40 | 12 | 10.2 | 5.5 | 21000 | 26000 | 0.07 |
| 7204AC | 46204 | 20 | 47 | 14 | 14.5 | 8.4 | 17000 | 22000 | 0.112 |
| 7205AC | 46205 | 25 | 52 | 15 | 15.3 | 9.5 | 15000 | 19000 | 0.135 |
| 7206AC | 46206 | 30 | 62 | 16 | 21.3 | 13.7 | 13000 | 16000 | 0.208 |
| 7207AC | 46207 | 35 | 72 | 17 | 28.1 | 18.6 | 11000 | 14000 | 0.295 |
| 7208AC | 46208 | 40 | 80 | 18 | 33.6 | 23.3 | 10000 | 12000 | 0.382 |
| 7209AC | 46209 | 45 | 85 | 19 | 37.7 | 26.6 | 9400 | 12000 | 0.43 |
| 7210AC | 46210 | 50 | 90 | 20 | 39.4 | 41.3 | 8500 | 11000 | 0.485 |
| 7211AC | 46211 | 55 | 700 | 21 | 48.7 | 37.1 | 7600 | 9500 | 0.635 |
| 7212AC | 46212 | 60 | 110 | 22 | 58.9 | 45.7 | 6900 | 8600 | 0.82 |
| 7213AC | 46213 | 65 | 120 | 23 | 67.3 | 54.2 | 6400 | 8000 | 1.02 |
| 7214AC | 46214 | 70 | 125 | 24 | 69.8 | 55.6 | 6100 | 7600 | 1.12 |
| 7215AC | 46215 | 75 | 130 | 25 | 79.2 | 65.2 | 5800 | 7200 | 1.23 |
| 7216AC | 46216 | 80 | 140 | 26 | 85.3 | 71.5 | 5400 | 6700 | 1.5 |
| 7217AC | 46217 | 85 | 150 | 28 | 98.6 | 83.6 | 5000 | 6300 | 1.87 |
| 7218AC | 46218 | 90 | 760 | 30 | 113 | 96.7 | 4700 | 5900 | 2.3 |
| 7219AC | 46219 | 95 | 770 | 32 | 122 | 103 | 4400 | 5500 | 2.78 |
| 7220AC | 46220 | 100 | 180 | 34 | 137 | 117 | 4100 | 5200 | 3.32 |
| 7221AC | 46221 | 105 | 190 | 36 | 149 | 132 | 3900 | 4900 | 3.95 |
| 7222AC | 46222 | 110 | 200 | 38 | 162 | 148 | 3700 | 4600 | 4.65 |
| 7224AC | 46224 | 130 | 215 | 40 | 174 | 166 | 3400 | 4300 | 5.49 |
| 7226AC | 46226 | 130 | 230 | 40 | 196 | 198 | 3200 | 4000 | 6.21 |
| 7228AC | 46228 | 140 | 250 | 42 | 218 | 234 | 2900 | 3600 | 7.76 |
| 7232AC | 46232 | 160 | 290 | 48 | 230 | 263 | 2500 | 3100 | 12.1 |
| 7234AC | 46234 | 170 | 370 | 52 | 272 | 331 | 2300 | 2800 | 15.1 |
| 7236AC | 46236 | 180 | 320 | 52 | 293 | 362 | 2200 | 2700 | 15.7 |
| 7240AC | 46240 | 200 | 360 | 58 | 324 | 432 | 1900 | 2400 | 22.4 |
| 7244AC | 46244 | 220 | 400 | 65 | 358 | 482 | 1100 | 1600 | 38.5 |
| Bearing type | Boundary Dimensions(mm) | Load Rating | Speed Rating(ipm) | Weight | |||||
| (kn) | |||||||||
| New Model | Old Model | d | D | B | Dymamic Cr | Static Cor | Grease | Oil | Weight |
| lubrication | lubrication | (kg) | |||||||
| 7300AC | 46300 | 10 | 35 | 11 | 8.5 | 3.75 | 27000 | 33000 | 0.054 |
| 7301AC | 46301 | 12 | 37 | 12 | 10.2 | 4.6 | 24000 | 31000 | 0.065 |
| 7302AC | 46302 | 15 | 42 | 13 | 12.5 | 6.45 | 20000 | 25000 | 0.088 |
| 7303AC | 46303 | 17 | 47 | 14 | 14.9 | 7.9 | 18000 | 23000 | 0.12 |
| 7304AC | 46304 | 20 | 52 | 15 | 17.4 | 9.4 | 17000 | 21000 | 0.15 |
| 7305AC | 46305 | 25 | 62 | 17 | 24.8 | 14.4 | 14000 | 17000 | 0.243 |
| 7306AC | 46306 | 30 | 72 | 19 | 30.1 | 18.9 | 12000 | 14000 | 0.362 |
| 7307AC | 46307 | 35 | 80 | 21 | 35.4 | 22 | 10000 | 13000 | 0.475 |
| 7308AC | 46308 | 40 | 90 | 23 | 43.2 | 27.4 | 9200 | 12000 | 0.657 |
| 7309AC | 46309 | 45 | 100 | 25 | 55.1 | 37.1 | 8200 | 10000 | 0.875 |
| 7310AC | 46310 | 50 | 170 | 27 | 70.1 | 48.7 | 7300 | 9100 | 1.14 |
| 7311AC | 46311 | 55 | 120 | 29 | 80.9 | 56.5 | 6700 | 8400 | 1.45 |
| 7312AC | 46312 | 60 | 130 | 31 | 92.5 | 65.6 | 6200 | 7700 | 1.81 |
| 7313AC | 46313 | 65 | 140 | 33 | 105 | 75.3 | 5800 | 7200 | 2.22 |
| 7314AC | 46314 | 70 | 150 | 35 | 118 | 85.8 | 5400 | 6700 | 2.7 |
| 7315AC | 46315 | 75 | 160 | 37 | 128 | 97 | 5000 | 6300 | 3.15 |
| 7316AC | 46316 | 80 | 170 | 39 | 139 | 109 | 4700 | 5900 | 3.85 |
| 7317AC | 46317 | 85 | 180 | 41 | 150 | 122 | 4400 | 5500 | 4.53 |
| 7318AC | 46318 | 90 | 190 | 43 | 161 | 135 | 4200 | 5200 | 5 |
| 7319AC | 46319 | 95 | 200 | 45 | 172 | 149 | 4000 | 4900 | 6.12 |
| 7320AC | 46320 | 100 | 215 | 47 | 184 | 161 | 3600 | 4600 | 7.53 |
| 7321AC | 46321 | 105 | 225 | 49 | 208 | 193 | 3500 | 4400 | 8.62 |
| 7322AC | 46322 | 110 | 240 | 50 | 232 | 226 | 3200 | 4000 | 10.7 |
| 7324AC | 46324 | 120 | 260 | 55 | 246 | 252 | 3000 | 3700 | 12.6 |
| 7326AC | 46326 | 130 | 280 | 58 | 301 | 329 | 2700 | 3400 | 15.4 |
| 7328AC | 46328 | 140 | 300 | 62 | 329 | 374 | 2500 | 3200 | 18.8 |
| 7330AC | 46330 | 150 | 320 | 65 | 348 | 414 | 2300 | 2900 | 22.4 |
| 7332AC | 46332 | 160 | 340 | 68 | 365 | 455 | 2200 | 2700 | 26.4 |
| 7334AC | 46334 | 170 | 360 | 72 | 389 | 485 | 2000 | 2500 | 31.2 |
| 7336AC | 46336 | 180 | 380 | 75 | 409 | 534 | 1900 | 2400 | 40 |
| 7338AC | 46338 | 190 | 400 | 78 | 450 | 598 | 1800 | 2200 | 45.5 |
| 7340AC | 46340 | 200 | 420 | 80 | 474 | 658 | 1700 | 2100 | 52 |
| 7406AC | 46406 | 30 | 90 | 23 | 0.960 | ||||
| 7407AC | 46407 | 35 | 100 | 25 | 1.140 | ||||
| 7408AC | 46408 | 40 | 110 | 27 | 1.400 | ||||
| 7409AC | 46409 | 45 | 120 | 29 | 1.800 | ||||
| 7410AC | 46410 | 50 | 130 | 31 | 2.250 | ||||
| 7411AC | 46411 | 55 | 140 | 33 | 2.750 | ||||
| 7412AC | 46412 | 60 | 150 | 35 | 3.400 | ||||
| 7413AC | 46413 | 65 | 160 | 37 | 4.200 | ||||
| 7414AC | 46414 | 70 | 180 | 42 | 5.800 | ||||
| 7415AC | 46415 | 75 | 190 | 45 | 7.000 | ||||
| 7416AC | 46416 | 80 | 200 | 48 | 8.000 | ||||
| Bearing type | Boundary Dimensions(mm) | Load Rating (kn) |
Speed Rating(ipm) | Weight | |||||
| New Model | Old Model | d | D | B | Dymamic Cr | Static Cor | Grease lubrication |
Oil lubrication |
Weight (kg) |
| 7204BTN | 66204 | 20 | 47 | 14 | 14.5 | 8.4 | 17000 | 22000 | 0.112 |
| 7205BTN | 66205 | 25 | 52 | 15 | 15.3 | 9.5 | 15000 | 19000 | 0.135 |
| 7206BTN | 66206 | 30 | 62 | 16 | 21.3 | 13.7 | 13000 | 16000 | 0.208 |
| 7207BTN | 66207 | 35 | 72 | 17 | 28.1 | 18.9 | 11000 | 14000 | 0.295 |
| 7208BTN | 66208 | 40 | 80 | 18 | 33.6 | 23.3 | 10000 | 12000 | 0.382 |
| 7209BTN | 66209 | 45 | 85 | 19 | 37.7 | 27 | 9400 | 12000 | 0.43 |
| 7210BTN | 66210 | 50 | 90 | 20 | 39.4 | 41.3 | 8500 | 11000 | 0.485 |
| 7211BTN | 66211 | 55 | 100 | 21 | 48.7 | 37.1 | 7600 | 9500 | 0.635 |
| 7212BTN | 66212 | 60 | 110 | 22 | 58.9 | 45.7 | 6900 | 8600 | 0.82 |
| 7213BTN | 66213 | 65 | 120 | 23 | 67.3 | 54.2 | 6400 | 8000 | 1.02 |
| 7214BTN | 66214 | 70 | 125 | 24 | 69.8 | 55.6 | 6100 | 7600 | 1.12 |
| 7215BTN | 66215 | 75 | 130 | 25 | 79.2 | 65.2 | 5800 | 7200 | 1.23 |
| 7216BTN | 66216 | 80 | 140 | 36 | 85.3 | 71.5 | 5400 | 6700 | 1.5 |
| 7217BTN | 66217 | 85 | 150 | 28 | 98.6 | 83.6 | 5000 | 6300 | 1.87 |
| 7218BTN | 66218 | 90 | 160 | 30 | 113 | 96.7 | 4700 | 5900 | 2.3 |
| 7219BTN | 66219 | 95 | 170 | 32 | 122 | 103 | 4400 | 5500 | 2.78 |
| 7220BTN | 66220 | 100 | 180 | 34 | 137 | 117 | 4700 | 5200 | 3.32 |
| 7221BTN | 66221 | 105 | 190 | 36 | 149 | 132 | 3900 | 4900 | 3.95 |
| 7222BTN | 66222 | 110 | 200 | 38 | 162 | 148 | 3700 | 4600 | 4.65 |
| 7224BTN | 66224 | 120 | 215 | 40 | 174 | 166 | 3400 | 4300 | 5.49 |
| 7226BTN | 66226 | 130 | 230 | 40 | 196 | 198 | 3200 | 4000 | 6.21 |
| 7228BTN | 66228 | 140 | 250 | 42 | 218 | 234 | 2900 | 3600 | 7.76 |
| Bearing type | Boundary Dimensions(mm) | Load Rating | Speed Rating(ipm) | Weight | |||||
| (kn) | |||||||||
| New Model | Old Model | d | D | B | Dymamic Cr | Static Cor | Grease | Oil | Weight |
| lubrication | lubrication | (kg) | |||||||
| 7303BTN | 66303 | 17 | 47 | 14 | 14.9 | 7.9 | 18000 | 23000 | 0.12 |
| 7304BTN | 66304 | 20 | 52 | 15 | 17.4 | 9.4 | 17000 | 21000 | 0.15 |
| 7305BTN | 66305 | 25 | 62 | 17 | 24.8 | 14.4 | 14000 | 77000 | 0.243 |
| 7306BTN | 66306 | 30 | 72 | 19 | 30.1 | 19 | 12000 | 14000 | 0.362 |
| 7307BTN | 66307 | 35 | 80 | 21 | 35.4 | 22 | 10000 | 13000 | 0.475 |
| 7308BTN | 66308 | 40 | 90 | 23 | 43.2 | 27.4 | 9200 | 12000 | 0.657 |
| 7309BTN | 66309 | 45 | 100 | 25 | 55.1 | 37.1 | 8200 | 10000 | 0.875 |
| 7310BTN | 66310 | 50 | 110 | 27 | 70.1 | 48.1 | 7300 | 9100 | 1.14 |
| 7311BTN | 66311 | 55 | 120 | 29 | 80.9 | 56.5 | 6700 | 8400 | 1.45 |
| 7312BTN | 66312 | 60 | 130 | 31 | 92.5 | 65.6 | 6200 | 7700 | 1.81 |
| 7313BTN | 66313 | 65 | 140 | 33 | 105 | 75.3 | 5800 | 7200 | 2.22 |
| 7314BTN | 66314 | 70 | 150 | 35 | 118 | 85.8 | 5400 | 6700 | 2.7 |
| 7315BTN | 66315 | 75 | 160 | 37 | 128 | 97 | 5000 | 6300 | 3.15 |
| 7316BTN | 66316 | 80 | 170 | 39 | 139 | 109 | 4700 | 5900 | 3.85 |
| 7317BTN | 66317 | 85 | 180 | 41 | 150 | 122 | 4400 | 5500 | 4.53 |
| 7318BTN | 66318 | 90 | 190 | 43 | 161 | 135 | 4200 | 5200 | 5.3 |
| 7319BTN | 66319 | 95 | 200 | 45 | 172 | 149 | 4000 | 4900 | 6.12 |
| 7320BTN | 66320 | 100 | 215 | 47 | 184 | 161 | 3600 | 4600 | 7.53 |
| 7321BTN | 66321 | 105 | 225 | 49 | 208 | 193 | 3500 | 4400 | 8.62 |
| 7322BTN | 66322 | 110 | 240 | 50 | 232 | 226 | 3200 | 4000 | 10.1 |
| 7324BTN | 66324 | 120 | 260 | 55 | 246 | 252 | 3000 | 3700 | 12.6 |
Company Profile
HangZhou solarich machinery Co., Ltd. is a professional manufacturer of bearings, specialized in the research and development of high precision angular contact ball bearings, double row angular contact ball bearings, ball screw bearings.
Our company in accordance with ISO international standards and GB national standards organization production, adhere to the “integrity, dedication, innovation, beyond” spirit of enterprise, “one heart, consistent, first-class” business philosophy, determined to choose reasonable quality axis for customers.
Products are widely used in: machine tool, precision machinery spindle, aviation, gas turbine, high frequency motor, high speed motor, air compressor, oil pump, printing machinery and other fields. The company promises to reasonable commodity prices, fast logistics delivery, quality service, and strong technical force, won the support and trust of customers, and truly realize the CZPT situation between the company and customers. Quality and development, is our pursuit.
Solutions
Single row angular contact ball bearings: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, repair welding machine, low noise type cooling tower, electromechanical equipment, painting equipment, machine slot plate, arc welding machine
Double row angular contact ball bearings: oil pump, Roots blower, air compressor, various transmission, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloidal reducer, food packaging machinery, electric welding machine, electric soldering iron, square box, gravity spray gun, wire stripping machine, half shaft, inspection and analysis equipment, fine chemical machinery.
Our Advantages
1. World-Class Bearing: We provide our customers with all types of indigenous bearing with world-class quality.
2. OEM or Non-Stand Bearings: Any requirement for Nonstandard bearings is Easily Fulfilled by us due to its vast knowledge and links in the industry.
3. Genuine products With Excellent Quality: The company has always proved the 100% quality products it provides with genuine intent.
4. After Sales Service and Technical Assistance: The company provides after-sales service and technical assistance as per the customer’s requirements and needs.
5. Quick Delivery: The company provides just-in-time delivery with its streamlined supply chain.
Packaging & Shipping
FAQ
Q: Are you trading company or manufacturer?
A: We are bearing manufacturer.
Q: How do you control quality of bearing?
A: All products and services passed ISO9001-2008 Quality Certificate.
Q: What is the MOQ?
A: It depends on the bearing type. You can send inquiry or send e-mail for more information.
Q: How about the package?
A: Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.
Q: How long is the delivery time?
A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days., depends on the model and quantity.
Q: How about the shipping?
A: We can arrange the shipment or you may have the forwarder.
Q: Is sample avaiable?
A: Yes, sample order is acceptable.
Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable. We can design the bearing with your requirements and use your own LOGO and package design.
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| Contact Angle: | 25° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Samples: |
US$ 2/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What Factors should be Considered when Selecting a Tapered Roller Bearing for a Specific Application?
Choosing the right tapered roller bearing for a specific application involves considering various factors to ensure optimal performance and reliability. Here are the key factors to consider:
- Load Requirements:
Assess the types and magnitudes of both radial and axial loads the bearing will experience. Choose a tapered roller bearing with a load capacity that comfortably exceeds the expected loads to prevent premature wear or failure.
- Speed:
Determine the required rotational speed of the bearing. High-speed applications may require bearings designed for reduced friction and heat generation to maintain efficiency and avoid overheating.
- Precision and Tolerance:
Consider the level of precision required for the application. Tapered roller bearings are available in different precision classes, such as ABEC (Annular Bearing Engineering Committee) grades, which impact factors like smoothness and accuracy of rotation.
- Mounting and Installation:
Assess the available space for mounting the bearing and consider the ease of installation. Bearings with adjustable clearance or preload might be advantageous for fine-tuning the bearing’s internal play.
- Temperature and Environment:
Take into account the operating temperature range and environmental conditions of the application. Extreme temperatures or corrosive environments may require specific bearing materials or coatings.
- Lubrication:
Choose an appropriate lubricant based on the application’s speed, temperature, and load conditions. Proper lubrication ensures smooth operation, reduces friction, and prolongs the bearing’s lifespan.
- Cost and Budget:
Consider the budget allocated for bearings. High-precision or specialized bearings may come at a higher cost, but their performance benefits can outweigh the initial investment over the bearing’s service life.
- Application Type:
Identify the specific industry and application in which the bearing will be used. Tapered roller bearings are employed in various sectors, including automotive, heavy machinery, aerospace, and more.
- Expected Lifespan:
Estimate the required bearing lifespan for the application. Factors such as load, speed, and maintenance practices can impact the bearing’s longevity.
- Bearing Size and Design:
Choose a bearing size that fits within the application’s space constraints while providing the necessary load capacity. The design, including the number and arrangement of rollers, can influence load distribution and performance.
- Maintenance Requirements:
Consider the maintenance schedule and accessibility for bearing inspection and replacement. Bearings in applications with limited maintenance intervals may require enhanced durability.
In conclusion, selecting a tapered roller bearing for a specific application involves assessing load requirements, speed, precision, mounting, temperature, lubrication, cost, application type, expected lifespan, bearing size, and maintenance considerations. Careful evaluation of these factors ensures that the chosen bearing meets the demands of the application while providing reliable performance and longevity.
What Advantages do Tapered Roller Bearings Offer Compared to Other Bearing Types?
Tapered roller bearings offer several advantages that make them a preferred choice in various applications compared to other bearing types. These advantages stem from their unique design and capabilities. Here’s a look at the benefits of tapered roller bearings:
- High Load-Carrying Capacity:
Tapered roller bearings can handle both radial and axial loads simultaneously, making them suitable for applications with combined loads. Their conical geometry allows for effective load distribution, enabling them to support heavy loads without premature wear.
- Efficient Axial Load Handling:
Tapered roller bearings excel at managing axial (thrust) loads in one direction. This capability is crucial in applications where axial loads are present, such as automotive transmissions or industrial machinery.
- Reduced Friction and Heat Generation:
The conical shape of the rollers and the matching raceways result in point contact, reducing friction and minimizing heat generation. This efficiency contributes to improved overall performance and energy savings.
- Adjustable Clearance and Preload:
Tapered roller bearings often allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s play, optimizing performance and extending the bearing’s lifespan.
- High Precision:
Tapered roller bearings are available in various precision classes to meet different application requirements. Their precision makes them suitable for applications demanding accurate motion control and positioning.
- Versatility:
Tapered roller bearings are used in a wide range of industries and applications, from automotive and heavy machinery to aerospace and industrial equipment. Their ability to handle diverse loads and conditions contributes to their versatility.
- Durability:
Tapered roller bearings are designed to withstand shocks and impacts, making them suitable for applications with dynamic loads or vibrations. Their robust construction contributes to their overall durability.
- High-Speed Capability:
Tapered roller bearings can operate at high speeds due to their efficient contact geometry and reduced friction. This makes them suitable for applications requiring rapid rotation.
- Cost-Effectiveness:
While the initial cost may vary, tapered roller bearings are often cost-effective due to their long service life and ability to handle heavy loads. Their durability can lead to reduced maintenance and replacement costs over time.
- Compatibility with Combined Loads:
Tapered roller bearings are well-suited for applications where radial and axial loads occur simultaneously, eliminating the need for multiple bearing types and simplifying design and installation.
In summary, tapered roller bearings offer a combination of load-carrying capacity, efficiency, adjustability, precision, and versatility that sets them apart from other bearing types. Their ability to handle a variety of loads and conditions makes them an advantageous choice in numerous industrial applications.
What Advantages do Tapered Roller Bearings Offer Compared to Other Bearing Types?
Tapered roller bearings offer several advantages that make them a preferred choice in various applications compared to other bearing types. These advantages stem from their unique design and capabilities. Here’s a look at the benefits of tapered roller bearings:
- High Load-Carrying Capacity:
Tapered roller bearings can handle both radial and axial loads simultaneously, making them suitable for applications with combined loads. Their conical geometry allows for effective load distribution, enabling them to support heavy loads without premature wear.
- Efficient Axial Load Handling:
Tapered roller bearings excel at managing axial (thrust) loads in one direction. This capability is crucial in applications where axial loads are present, such as automotive transmissions or industrial machinery.
- Reduced Friction and Heat Generation:
The conical shape of the rollers and the matching raceways result in point contact, reducing friction and minimizing heat generation. This efficiency contributes to improved overall performance and energy savings.
- Adjustable Clearance and Preload:
Tapered roller bearings often allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s play, optimizing performance and extending the bearing’s lifespan.
- High Precision:
Tapered roller bearings are available in various precision classes to meet different application requirements. Their precision makes them suitable for applications demanding accurate motion control and positioning.
- Versatility:
Tapered roller bearings are used in a wide range of industries and applications, from automotive and heavy machinery to aerospace and industrial equipment. Their ability to handle diverse loads and conditions contributes to their versatility.
- Durability:
Tapered roller bearings are designed to withstand shocks and impacts, making them suitable for applications with dynamic loads or vibrations. Their robust construction contributes to their overall durability.
- High-Speed Capability:
Tapered roller bearings can operate at high speeds due to their efficient contact geometry and reduced friction. This makes them suitable for applications requiring rapid rotation.
- Cost-Effectiveness:
While the initial cost may vary, tapered roller bearings are often cost-effective due to their long service life and ability to handle heavy loads. Their durability can lead to reduced maintenance and replacement costs over time.
- Compatibility with Combined Loads:
Tapered roller bearings are well-suited for applications where radial and axial loads occur simultaneously, eliminating the need for multiple bearing types and simplifying design and installation.
In summary, tapered roller bearings offer a combination of load-carrying capacity, efficiency, adjustability, precision, and versatility that sets them apart from other bearing types. Their ability to handle a variety of loads and conditions makes them an advantageous choice in numerous industrial applications.
editor by CX 2024-05-09
China supplier 71920C/AC/B High-Speed Angular Contact Ball Bearings 100X140X20mm P6/P5/P4/P2 Used in Machine Tool Spindles High Frequency Motors, Gas Turbines 718/719/70/72 ball bearing
Product Description
Product description
Model: Angular contact ball bearings (71920C)
Brand: AUTO
Series: Angular contact ball bearings, single row, no seals
Shape size
d: 100
D: 140
B: 20
| 718 Series Angular Contact Bearings |
| 719 Series Angular Contact Bearings |
| H719 Series Angular Contact Bearings |
| 70 Series Angular Contact Bearings |
| H70 Series Angular Contact Bearings |
| B70 Series Angular Contact Bearings |
| 72 Series Angular Contact Bearings |
Company
HangZhou Auto Bearing Co., Ltd. is located in the industrial park of HangZhou,which is 1 of the 4 great ancient capitals of China.Our company is the member of China Bearing Industry Association,cooperating with State Quality Supervision and Testing Center for bearing.Our company is a professional bearing manufacturer which integrated with research ,development and marketing services.
Our major products include deep groove ball bearing, spherical roller bearing, slewing ring, crossed roller bearing and other all kinds of high precision bearings.Our products are widely applied to motor industry,mining metallurgy,wind power generation,petroleum drilling,automobile and motorcycle etc..
Our company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high precision and reliability bearings.Each process is in strict accordance with the ISO9001 quality management system,which effectively guarantees the precise of products and stability of the performance. AUTO bearings are mainly exported to the United states,South Korea,Europe,etc., which have reached the high level of foreign similar products.
The soul of our business culture is [Detail makes competitive, innovation makes first-class”.We believe the production and management philosophy of [quality wins ,casting competitive products”.The company adheres to the zero-defect quality management for meeting customer requirements.
Packing
A. plastic box & outer carton & pallets
B. plastic bag & box & carton & pallet
C. tube package & middle box & carton & pallet
D. Depends on your needs
Delivery
A. Most orders will be shipped within 3-5 days of payment being received.
B. Samples will be shipped by cov2urier as FedEx,UPS,DHL,etc.
Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 15°/25°/40° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Axial Bearing |
| Material: | Bearing Steel |
| Customization: |
Available
| Customized Request |
|---|
Can rolling contact bearings be customized or modified to meet specific industrial requirements?
Yes, rolling contact bearings can be customized or modified to meet specific industrial requirements. Bearing manufacturers offer a range of customization options to tailor bearings to unique application needs. These customizations can include modifications in design, materials, dimensions, and performance characteristics. Here’s a detailed explanation of the customization possibilities for rolling contact bearings:
- Design Modifications:
Bearing manufacturers can modify the design of rolling contact bearings to suit specific industrial requirements. This can involve altering the internal geometry, such as ball or roller profiles, cage design, or the number and arrangement of rolling elements. Design modifications aim to optimize the bearing’s load-carrying capacity, speed capability, or resistance to specific operating conditions. By customizing the design, manufacturers can address unique challenges and enhance the performance of rolling contact bearings in specific applications.
- Material Selection:
Rolling contact bearings can be customized by choosing specific materials for their components. Material selection depends on factors such as load requirements, operating temperatures, corrosion resistance, and lubrication conditions. Bearing manufacturers offer a variety of materials for various components, including bearing rings, rolling elements, cages, and seals. For example, high-temperature applications may require bearing rings made of heat-resistant steel or ceramic rolling elements to withstand the elevated temperatures. By selecting appropriate materials, rolling contact bearings can be customized to optimize their performance and reliability in specific industrial environments.
- Dimensional Modifications:
Bearing dimensions can be customized to meet specific industrial requirements. This may involve adjusting the inner and outer ring diameters, bore and outer diameter tolerances, or overall bearing width. Dimensional modifications are particularly useful when retrofitting bearings into existing equipment with unique space constraints. Customized dimensional changes ensure proper fitment and compatibility with the surrounding components, enabling seamless integration of rolling contact bearings into the target application.
- Sealing and Lubrication:
Sealing arrangements and lubrication options can be customized for rolling contact bearings. The choice of seals and lubricants depends on the desired level of contamination protection, operating temperatures, and specific requirements of the application. Customized sealing arrangements can include various types of seals, such as contact seals, non-contact seals, or specialized labyrinth seals, to prevent the ingress of contaminants and retain lubrication. Lubrication customization can involve selecting different types of lubricants, additives, or applying specific lubrication methods to optimize the bearing’s performance and extend its service life in specific industrial settings.
- Specialized Coatings and Surface Treatments:
To enhance the performance and durability of rolling contact bearings, manufacturers offer specialized coatings and surface treatments. These modifications can include applying corrosion-resistant coatings, low-friction coatings, or protective surface treatments to improve wear resistance or reduce frictional losses. Specialized coatings and surface treatments can be customized to specific industrial requirements, providing enhanced performance, longer service life, and improved reliability in challenging operating conditions.
Customization options for rolling contact bearings ensure that they can be tailored to meet the specific needs of various industries and applications. By collaborating with bearing manufacturers and providing detailed application requirements, industrial users can benefit from customized bearings that offer optimized performance, increased reliability, and extended service life in their specific operating environments.
What are the eco-friendly or sustainable aspects of rolling contact bearing materials?
Rolling contact bearing materials can contribute to eco-friendliness and sustainability in several ways. Here’s a detailed explanation of the eco-friendly and sustainable aspects of rolling contact bearing materials:
- Recyclability:
Many rolling contact bearing materials, such as steel and certain types of alloys, are highly recyclable. At the end of their service life, bearings can be dismantled, and the materials can be recycled or reused. Recycling bearings helps reduce the demand for raw materials, conserves energy, and minimizes waste generation. By promoting a circular economy, the recyclability of bearing materials contributes to resource conservation and waste reduction.
- Energy Efficiency:
Rolling contact bearings play a crucial role in improving energy efficiency in various applications. By reducing friction and minimizing power losses, bearings help optimize the performance of machinery and equipment. When machines operate more efficiently, they consume less energy, leading to reduced greenhouse gas emissions and lower carbon footprints. The use of high-quality bearing materials, coatings, and lubricants further enhances energy efficiency by minimizing frictional losses.
- Long Service Life:
Rolling contact bearings are designed to have long service lives under normal operating conditions. Their ability to withstand heavy loads, resist wear, and operate reliably contributes to extended equipment lifetimes. By reducing the frequency of bearing replacements, industries can minimize material consumption, waste generation, and environmental impact associated with manufacturing and disposal processes. The longer service life of rolling contact bearings promotes sustainability by reducing resource consumption and improving equipment lifecycle management.
- Reduced Maintenance:
The use of high-quality rolling contact bearing materials can contribute to reduced maintenance requirements. Bearings that are resistant to wear, corrosion, and fatigue offer longer maintenance intervals, reducing the need for frequent inspections, replacements, and repairs. This not only saves time and labor but also reduces the consumption of maintenance-related resources such as lubricants and spare parts. The reduced maintenance needs of rolling contact bearings contribute to sustainable operations by optimizing resource utilization and minimizing maintenance-related waste.
- Environmental Compliance:
Rolling contact bearing materials are subject to various environmental regulations and standards. Manufacturers strive to comply with these regulations by ensuring that their materials are free from hazardous substances or restricted substances. Compliance with regulations such as the Restriction of Hazardous Substances (RoHS) directive helps prevent the use of environmentally harmful materials, reducing the potential environmental impact during the manufacturing, use, and disposal stages of rolling contact bearings.
Overall, rolling contact bearing materials offer several eco-friendly and sustainable aspects, including recyclability, energy efficiency, long service life, reduced maintenance requirements, and compliance with environmental regulations. These aspects contribute to resource conservation, waste reduction, energy savings, and minimized environmental impact throughout the lifecycle of rolling contact bearings.
How do rolling contact bearings differ from other types of bearings like plain bearings?
Rolling contact bearings and plain bearings are two different types of bearings used in mechanical systems, and they differ in their design, operation, and characteristics. Here’s a detailed explanation of the differences between rolling contact bearings and plain bearings:
- Design and Construction:
Rolling contact bearings, as the name suggests, utilize rolling elements (such as balls or rollers) to facilitate smooth motion between the rotating or moving parts. They consist of an inner ring, an outer ring, rolling elements, and a cage or retainer that keeps the rolling elements in position. The rolling elements roll between the raceways of the inner and outer rings, reducing friction and enabling relative motion.
Plain bearings, on the other hand, rely on a sliding interface between the bearing surfaces. They typically consist of two surfaces: a stationary bearing surface and a moving surface. The stationary surface is often a metal shell or housing, while the moving surface is a separate bearing material, such as a low-friction metal or polymer. The two surfaces slide against each other, with a lubricating film separating them to minimize friction.
- Friction and Efficiency:
One of the key differences between rolling contact bearings and plain bearings is the amount of friction generated during operation. Rolling contact bearings have lower friction compared to plain bearings. The rolling elements in rolling contact bearings reduce the contact area and allow for rolling motion, resulting in reduced friction and improved efficiency. In contrast, plain bearings rely on sliding motion, which generates more friction and can lead to higher energy losses.
- Load Capacity and Performance:
Rolling contact bearings are typically designed to handle higher loads and provide better load distribution compared to plain bearings. The rolling elements in rolling contact bearings distribute the loads across their contact surfaces, reducing stress concentrations and enabling the bearings to support heavier loads. This makes rolling contact bearings suitable for applications with higher load requirements, such as heavy machinery and industrial equipment.
Plain bearings, while generally having lower load capacities, offer advantages in applications that require self-lubrication or the ability to operate in harsh environments. The sliding motion in plain bearings helps distribute lubrication evenly across the bearing surfaces, reducing the need for external lubrication systems. Additionally, plain bearings can better tolerate contaminants, such as dirt or debris, which can cause problems in rolling contact bearings.
- Maintenance and Service Life:
Rolling contact bearings typically require less maintenance compared to plain bearings. Rolling contact bearings are designed with pre-defined lubrication systems, and periodic lubrication or inspection is usually sufficient to ensure their proper operation. Plain bearings, on the other hand, may require regular lubrication or replacement of the bearing material to maintain optimal performance.
In terms of service life, rolling contact bearings often have a longer service life compared to plain bearings. The rolling motion and reduced friction in rolling contact bearings result in less wear and longer operational durability. Plain bearings, due to the sliding motion, may experience more wear over time, especially in high-load or high-speed applications.
- Application and Usage:
Rolling contact bearings and plain bearings find their applications in different scenarios. Rolling contact bearings are commonly used in applications that require high-speed rotation, precise motion control, and heavy load-carrying capacity. They are found in various industries, including automotive, aerospace, industrial machinery, and more.
Plain bearings, on the other hand, are often utilized in situations where self-lubrication, resistance to contaminants, or low-speed and oscillating motion are required. They are commonly found in applications such as engines, pumps, turbines, and construction equipment.
In summary, rolling contact bearings and plain bearings differ in their design, operation, friction characteristics, load-carrying capacity, maintenance requirements, and applications. Rolling contact bearings utilize rolling elements for reduced friction, higher load capacity, and efficient motion, making them suitable for high-speed and heavy-load applications. Plain bearings rely on sliding surfaces, offer self-lubrication advantages, and are often used in low-speed or oscillating motion scenarios.
editor by CX 2024-05-08
China factory Best Price Angular Contact Ball Bearing 7032/dB7034/dB7036/dB7038/dB7040/dB for Machine Tool Spindle, High Frequency Motor connecting rod bearing
Product Description
Product Description
| production name | Angular contact ball bearing Single row ground |
| brand | AUTO/OEM/SEMRI |
| Model Number | 71952C/AC/B |
| Dimension | 260*360*46mm |
| Basic dynamic load rating | 246 KN |
| Basic static load rating | 351 KN |
| Attainable speed for grease lubrication | 3500 1/min |
| Attainable speed for oil-air lubrication | 5200 1/min |
| Ring Material | Gcr15/ Carbon Steel/ Stainless Steel/ Si3N4/ ZrO2 |
| Cage Material | Steel/ Brass/ Nylon/ Custom |
| Precision | P6 P5 P4 P2 |
| Vibration | |
| Clearance | C0,C2,C3, or as requested |
| Quality standard | ISO9001:2000/ SGS |
Detailed Photos
Certifications
Packaging & Shipping
Company Profile
ZheJiang CZPT Metal Co., Ltd. is located in HangZhou, ZheJiang Province,which is founded in 2571.
Mainly engaged in the production and sales of auto parts. For the automobile after-sales maintenance market to provide a complete variety of high-quality parts products, the annual sales of 30 million US dollars, the products are exported to the United States, Europe, Russia, Southeast Asia, the Middle East and other dozens of countries and regions, enjoy a high reputation in the domestic and foreign markets.
It can provide professional solutions and is a trusted supplier in the automotive aftermarket. The company has passed the “three system” certification of quality, environment and occupational CZPT and safety. Scientific management system, first-class production testing equipment, exquisite technology to ensure product quality.
FAQ
Q1: How many the MOQ of your company?
A: Our company MOQ is 1pcs.
Q2: Could you accept OEM and customize?
A:YES, we can customize for you according to sample or drawing.
Q3: Could you supply sample for free?
A: Yes, we can supply sample for free, but need our customer afford freight.
Q4 : Does your factory have CE?
A: Yes, we have ISO 9001:2008, and SASO. If you want other CE, we can do for you.
Q5: Is it your company is factory or Trade Company?
A: We have our own factory; our type is factory + trade.
Q6: What time the guarantee of your bearing quality guarantee period?
A: 6 months ,Customer need supply photos and send bearing back.
Q7: Could you tell me the payment term of your company can accept?
A: T/T, Western Union, PayPal, T/T, L/C.
Q8: Could you tell me the delivery time of your goods?
A: 7-15 days , mostly base on your order quantity.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 60° |
|---|---|
| Aligning: | Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Double |
| Load Direction: | Thrust Bearing |
| Material: | Cast Iron |
| Samples: |
US$ 2.5/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What Factors should be Considered when Selecting a Tapered Roller Bearing for a Specific Application?
Choosing the right tapered roller bearing for a specific application involves considering various factors to ensure optimal performance and reliability. Here are the key factors to consider:
- Load Requirements:
Assess the types and magnitudes of both radial and axial loads the bearing will experience. Choose a tapered roller bearing with a load capacity that comfortably exceeds the expected loads to prevent premature wear or failure.
- Speed:
Determine the required rotational speed of the bearing. High-speed applications may require bearings designed for reduced friction and heat generation to maintain efficiency and avoid overheating.
- Precision and Tolerance:
Consider the level of precision required for the application. Tapered roller bearings are available in different precision classes, such as ABEC (Annular Bearing Engineering Committee) grades, which impact factors like smoothness and accuracy of rotation.
- Mounting and Installation:
Assess the available space for mounting the bearing and consider the ease of installation. Bearings with adjustable clearance or preload might be advantageous for fine-tuning the bearing’s internal play.
- Temperature and Environment:
Take into account the operating temperature range and environmental conditions of the application. Extreme temperatures or corrosive environments may require specific bearing materials or coatings.
- Lubrication:
Choose an appropriate lubricant based on the application’s speed, temperature, and load conditions. Proper lubrication ensures smooth operation, reduces friction, and prolongs the bearing’s lifespan.
- Cost and Budget:
Consider the budget allocated for bearings. High-precision or specialized bearings may come at a higher cost, but their performance benefits can outweigh the initial investment over the bearing’s service life.
- Application Type:
Identify the specific industry and application in which the bearing will be used. Tapered roller bearings are employed in various sectors, including automotive, heavy machinery, aerospace, and more.
- Expected Lifespan:
Estimate the required bearing lifespan for the application. Factors such as load, speed, and maintenance practices can impact the bearing’s longevity.
- Bearing Size and Design:
Choose a bearing size that fits within the application’s space constraints while providing the necessary load capacity. The design, including the number and arrangement of rollers, can influence load distribution and performance.
- Maintenance Requirements:
Consider the maintenance schedule and accessibility for bearing inspection and replacement. Bearings in applications with limited maintenance intervals may require enhanced durability.
In conclusion, selecting a tapered roller bearing for a specific application involves assessing load requirements, speed, precision, mounting, temperature, lubrication, cost, application type, expected lifespan, bearing size, and maintenance considerations. Careful evaluation of these factors ensures that the chosen bearing meets the demands of the application while providing reliable performance and longevity.
Can you Explain the Design and Construction of Tapered Roller Bearings?
The design and construction of tapered roller bearings are characterized by their conical geometry and specific components that enable them to handle radial and axial loads simultaneously. Here’s an overview of their design and construction:
- Components:
Tapered roller bearings consist of the following components:
- Inner Ring:
The inner ring has a conical raceway on its inner surface, which matches the conical shape of the rollers. It serves as the raceway for the rollers and provides support to the rotating assembly.
- Outer Ring:
The outer ring also features a conical raceway on its inner surface that complements the shape of the rollers. The outer ring provides a rigid structure to house the entire bearing assembly.
- Tapered Rollers:
The rollers have a conical shape with varying diameters along their length. This design allows the rollers to make point contact with the inner and outer raceways, distributing loads efficiently.
- Cage:
The cage or retainer holds the rollers in position, maintaining proper spacing and preventing them from coming into contact with each other. The cage material can vary, and its design may affect factors like friction and heat generation.
- Conical Geometry:
The distinguishing feature of tapered roller bearings is their conical geometry. The conical angle is defined by the contact angle between the roller axis and the bearing axis. This angle facilitates effective load distribution and axial load support.
- Load Distribution:
The conical shape of the rollers and raceways allows tapered roller bearings to handle both radial and axial loads. Radial loads are primarily supported by the larger diameter of the rollers at the large end of the cone, while axial loads are absorbed by the smaller diameter near the small end of the cone.
- Adjustable Clearance and Preload:
Many tapered roller bearings allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s internal play, optimizing performance and minimizing friction.
- Thrust Capability:
Tapered roller bearings can handle thrust (axial) loads in one direction, making them suitable for applications where axial loads need to be managed along with radial loads.
- Applications:
Tapered roller bearings find applications in various industries, including automotive, heavy machinery, aerospace, and more. They are used in scenarios that require efficient load distribution and handling of combined loads.
In summary, tapered roller bearings are designed with conical geometry to accommodate both radial and axial loads. Their specific components, such as tapered rollers and a cage, work together to ensure effective load distribution, making them suitable for a wide range of industrial applications.
How does Proper Lubrication Impact the Performance and Longevity of Tapered Roller Bearings?
Proper lubrication is essential for ensuring optimal performance and longevity of tapered roller bearings. Lubrication plays a critical role in reducing friction, preventing wear, and managing heat generated during operation. Here’s how proper lubrication impacts tapered roller bearings:
- Reduced Friction:
Lubrication forms a thin film between the rolling elements and raceways, reducing direct metal-to-metal contact. This minimizes friction and the associated heat generation, allowing the bearing to operate smoothly and efficiently.
- Wear Prevention:
Lubrication forms a protective barrier that prevents wear and surface damage. Without proper lubrication, friction can lead to accelerated wear, pitting, and even surface scoring, shortening the bearing’s lifespan.
- Heat Dissipation:
Effective lubrication helps dissipate heat generated during operation. This is especially crucial in high-speed applications where excessive heat can lead to premature bearing failure or degradation of lubricant properties.
- Corrosion Protection:
Lubrication helps create a barrier that protects bearing surfaces from environmental factors that could lead to corrosion. This is particularly important in applications exposed to moisture, chemicals, or other corrosive agents.
- Noise and Vibration Reduction:
Proper lubrication can dampen vibrations and reduce noise by providing a cushioning effect between the rolling elements and raceways. This contributes to smoother and quieter operation.
- Longevity:
Well-lubricated bearings experience less wear and stress, leading to extended service life. Bearings that are inadequately lubricated or run dry are prone to premature failure due to excessive wear, heat buildup, and damage to bearing surfaces.
- Efficiency:
Adequate lubrication maintains the bearing’s efficiency by minimizing energy losses due to friction. Bearings that lack proper lubrication require more energy to overcome higher friction levels, resulting in reduced efficiency.
- Lubrication Methods:
Various lubrication methods are available, including grease lubrication and oil lubrication. The choice depends on factors such as speed, load, temperature, and application requirements.
To ensure proper lubrication:
- Follow Manufacturer Recommendations:
Consult the bearing manufacturer’s recommendations for lubricant type, viscosity, and replenishment intervals.
- Monitor and Maintain:
Regularly monitor the condition of the lubricant and the bearing’s performance. Implement a maintenance schedule for lubricant replacement or replenishment.
- Environmental Considerations:
Consider the operating environment’s temperature, contamination levels, and exposure to external elements. Some applications may require special lubricants for extreme conditions.
In summary, proper lubrication is crucial for maintaining tapered roller bearings’ performance, preventing wear, reducing friction and heat, and extending their lifespan. A well-lubricated bearing contributes to smoother operation, lower maintenance costs, and improved efficiency.
editor by CX 2024-05-02
China Standard Double Row Angular Contact Ball Bearing for Pneumatic Tool Bearing bearing bronze
Product Description
Angular contact ball bearings are CZPT to support radial load and axial load. As single row angular contact ball bearings can only support axial load in single direction, matched bearing mounting is often adopted to them as matched parts of bearings, preload for them is more convenient.
Retainers are made of brass, synthetic resins or others subject to individual bearing features and application conditions.
Angular contact ball bearing include:
1) Single row angular contact ball bearing
2) Matched angular contact ball bearing
3) Double row angular contact ball bearing
4) Four-point contact ball bearing
Angular contact ball bearings features :
1) Load capacities are higher than deep groove ball bearings of same dimensions;
2) Used for bearing radial-axial combined loads or pure thrust loads;
3) Low operating friction and high limiting speed.
|
Type |
Angular contact ball bearing |
|
Material |
GCr15/stainless steel/carbon steel/Plastic/Ceramic |
|
Bore size |
35 mm |
|
Outer diameter |
72 mm |
|
Width |
30.2 mm |
|
Seal type |
Open RS Z 2RS ZZ |
|
Cage |
Stamping steel/Brass/Nylon/Ceramic |
|
Certificate |
ISO9001:2000 |
|
Application |
Automobile, tractor, machine tool, electrical machine, water pump, agriculture machine, textile machine, etc. |
|
Packaging |
Original brand Plastic bag+Original brand Paper box+Original brand Carton box+Wooden pallet; Customer’s special requests are acceptable. |
|
Service |
OEM service, Customization service, Customers’ Logo service; |
|
Complete process for the production and quality assurance ensures our products can meet your requirement. We are committed to be responsible for each set of bearing and industrial products sold to our clients. Relying on strong resource network, we can supply any bearing with competitive price to meet each customer’ demand and guarantee each customer’s benefit. |
|
Company Profile
In order to meet the needs of the masses of customers and improve the market competitiveness of our company,
we can provide OEM service according to our customers′ Needs. We have gained ISO9001 certificate, CE certificate,
GOST certificate and SGS certificate. Our target is to carry out the strategic investment along with the development
of market and need of new products. With our strategic, excellent products, top technology and outstanding service,
we sincerely expect cooperation with more customers and friends for a better future. Our main products include
spherical roller bearing, deep groove ball bearings, cylindrical roller bearings, spherical roller bearings, needle roller
bearings, ball bearing units, water pump bearings, automobile bearing, linear motion bearing, oil-less bearings,
bush and self-lubricating bearings, and non-standard bearings. Also, we supply bearings to our domestic peeling
machine factory and the machine exported to India, Malaysia and Russia, no any complaint from customer until now.
“zero defect, zero complaints” as the quality objective.
FAQ
Q: Are you trading company or manufacturer ?
A: We are a trading company specializing in exporting bearings.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the
goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge
Q.You provide free consultation service?
Yes, before, during and after order, anytime.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Product Name: | Angular Contact Ball Bearing |
|---|---|
| Characteristic: | High Precision |
| Advantage: | Large Bearing Capacity |
| Holder: | Copper and Iron Retainers |
| Quality: | High Quality |
| Rolling Body: | Roller Bearings |
| Samples: |
US$ 5/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What are the Common Signs of Wear or Damage in Tapered Roller Bearings?
Identifying signs of wear or damage in tapered roller bearings is crucial for maintaining optimal performance and preventing costly failures. Here are the common signs to look for:
- Abnormal Noise:
Unusual noises, such as grinding, clicking, or rumbling sounds, may indicate damage within the bearing. These noises could result from worn rollers, raceways, or insufficient lubrication.
- Vibration:
Excessive vibration or unusual vibrations not typically present during operation may indicate an issue with the bearing. Vibration can result from misalignment, worn components, or uneven loading.
- Increased Operating Temperature:
If the bearing becomes excessively hot during operation, it could indicate inadequate lubrication, excessive friction, or other issues. Monitoring temperature changes can help identify potential problems.
- Irregular Rotation:
If the bearing experiences irregular rotation, such as sticking or rough movement, it could be due to damaged rollers, misalignment, or improper preload.
- Visible Wear:
Inspect the bearing for visible signs of wear or damage, such as pitting, scoring, discoloration, or deformation of the bearing components.
- Increased Noise or Vibration Under Load:
If the bearing makes more noise or vibrates noticeably when subjected to load, it could indicate that the bearing is unable to handle the applied load properly.
- Uneven Wear:
Uneven wear patterns on the rollers or raceways can suggest misalignment or inadequate lubrication, causing the bearing to experience uneven loading.
- Loss of Performance:
If the bearing’s performance decreases, such as reduced efficiency or increased friction, it may indicate wear, contamination, or other issues affecting the bearing’s operation.
- Looseness or Play:
If there’s excessive play or looseness in the bearing assembly, it could be a sign of worn components or inadequate preload, impacting the bearing’s stability and performance.
- Leaks or Contaminants:
Inspect for leaks of lubricant or the presence of contaminants around the bearing. Leaks can indicate seal damage, and contaminants can accelerate wear.
- Observable Damage to Components:
If any bearing components, such as rollers, cages, or raceways, appear visibly damaged or deformed, immediate attention is necessary to prevent further issues.
Regular inspection and maintenance are essential to catch these signs early and prevent further damage. Addressing wear or damage promptly can extend the bearing’s lifespan and avoid costly downtime.
What Advantages do Tapered Roller Bearings Offer Compared to Other Bearing Types?
Tapered roller bearings offer several advantages that make them a preferred choice in various applications compared to other bearing types. These advantages stem from their unique design and capabilities. Here’s a look at the benefits of tapered roller bearings:
- High Load-Carrying Capacity:
Tapered roller bearings can handle both radial and axial loads simultaneously, making them suitable for applications with combined loads. Their conical geometry allows for effective load distribution, enabling them to support heavy loads without premature wear.
- Efficient Axial Load Handling:
Tapered roller bearings excel at managing axial (thrust) loads in one direction. This capability is crucial in applications where axial loads are present, such as automotive transmissions or industrial machinery.
- Reduced Friction and Heat Generation:
The conical shape of the rollers and the matching raceways result in point contact, reducing friction and minimizing heat generation. This efficiency contributes to improved overall performance and energy savings.
- Adjustable Clearance and Preload:
Tapered roller bearings often allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s play, optimizing performance and extending the bearing’s lifespan.
- High Precision:
Tapered roller bearings are available in various precision classes to meet different application requirements. Their precision makes them suitable for applications demanding accurate motion control and positioning.
- Versatility:
Tapered roller bearings are used in a wide range of industries and applications, from automotive and heavy machinery to aerospace and industrial equipment. Their ability to handle diverse loads and conditions contributes to their versatility.
- Durability:
Tapered roller bearings are designed to withstand shocks and impacts, making them suitable for applications with dynamic loads or vibrations. Their robust construction contributes to their overall durability.
- High-Speed Capability:
Tapered roller bearings can operate at high speeds due to their efficient contact geometry and reduced friction. This makes them suitable for applications requiring rapid rotation.
- Cost-Effectiveness:
While the initial cost may vary, tapered roller bearings are often cost-effective due to their long service life and ability to handle heavy loads. Their durability can lead to reduced maintenance and replacement costs over time.
- Compatibility with Combined Loads:
Tapered roller bearings are well-suited for applications where radial and axial loads occur simultaneously, eliminating the need for multiple bearing types and simplifying design and installation.
In summary, tapered roller bearings offer a combination of load-carrying capacity, efficiency, adjustability, precision, and versatility that sets them apart from other bearing types. Their ability to handle a variety of loads and conditions makes them an advantageous choice in numerous industrial applications.
Can you Explain the Design and Construction of Tapered Roller Bearings?
The design and construction of tapered roller bearings are characterized by their conical geometry and specific components that enable them to handle radial and axial loads simultaneously. Here’s an overview of their design and construction:
- Components:
Tapered roller bearings consist of the following components:
- Inner Ring:
The inner ring has a conical raceway on its inner surface, which matches the conical shape of the rollers. It serves as the raceway for the rollers and provides support to the rotating assembly.
- Outer Ring:
The outer ring also features a conical raceway on its inner surface that complements the shape of the rollers. The outer ring provides a rigid structure to house the entire bearing assembly.
- Tapered Rollers:
The rollers have a conical shape with varying diameters along their length. This design allows the rollers to make point contact with the inner and outer raceways, distributing loads efficiently.
- Cage:
The cage or retainer holds the rollers in position, maintaining proper spacing and preventing them from coming into contact with each other. The cage material can vary, and its design may affect factors like friction and heat generation.
- Conical Geometry:
The distinguishing feature of tapered roller bearings is their conical geometry. The conical angle is defined by the contact angle between the roller axis and the bearing axis. This angle facilitates effective load distribution and axial load support.
- Load Distribution:
The conical shape of the rollers and raceways allows tapered roller bearings to handle both radial and axial loads. Radial loads are primarily supported by the larger diameter of the rollers at the large end of the cone, while axial loads are absorbed by the smaller diameter near the small end of the cone.
- Adjustable Clearance and Preload:
Many tapered roller bearings allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s internal play, optimizing performance and minimizing friction.
- Thrust Capability:
Tapered roller bearings can handle thrust (axial) loads in one direction, making them suitable for applications where axial loads need to be managed along with radial loads.
- Applications:
Tapered roller bearings find applications in various industries, including automotive, heavy machinery, aerospace, and more. They are used in scenarios that require efficient load distribution and handling of combined loads.
In summary, tapered roller bearings are designed with conical geometry to accommodate both radial and axial loads. Their specific components, such as tapered rollers and a cage, work together to ensure effective load distribution, making them suitable for a wide range of industrial applications.
editor by CX 2024-04-25
China wholesaler High-Speed Angular Contact Ball Bearings 71828 AC Used in Machine Tool Spindles connecting rod bearing
Product Description
This type of bearing is used to bear heavier radial-axial combined loads with limit rotational speeds higher. The bearings are mainly applied to the construction parts that limit axial displacement of the axis or housing in double directions.
The bearing is used with 4 row cylindrical roller bearings limiting the axial motion of roll in rolling mill the axial load capactiy is heavier than four-point contact ball ebearings incomparison with paiy mounted in back-to-back, face-to-face arvangements single row angular contact ball bearings units, the axial clearance of the bearing doesn’t need adjustment, these bearings can be mounted with ease and there can be 2 types: 2 half-outer-rings and 2 half-inner-rings according to the installation need of customers.
| Bearing Designations | Boundary Dimensions(mm) | Load rating (KN) |
Limiting Speed (r/min) | Mass( kg) |
||||||||||||
| 71828 AC | d | D | B | Rsmin | Rlsmin | a | Dynamic Cr | Static Cor | Grease | Oil | ||||||
| 140 | 175 | 18 | 1.10 | 0.60 | 46 | 42.0 | 74.7 | 5600 | 8500 | 0.813 | ||||||
| 718 Series Angular Contact Bearings |
| 719 Series Angular Contact Bearings |
| H719 Series Angular Contact Bearings |
| 70 Series Angular Contact Bearings |
| H70 Series Angular Contact Bearings |
| B70 Series Angular Contact Bearings |
| 72 Series Angular Contact Bearings |
Company
HangZhou Auto Bearing Co., Ltd. is located in the industrial park of HangZhou,which is 1 of the 4 great ancient capitals of China.Our company is the member of China Bearing Industry Association,cooperating with State Quality Supervision and Testing Center for bearing.Our company is a professional bearing manufacturer which integrated with research ,development and marketing services.
Our major products include deep groove ball bearing, spherical roller bearing, slewing ring, crossed roller bearing and other all kinds of high precision bearings.Our products are widely applied to motor industry,mining metallurgy,wind power generation,petroleum drilling,automobile and motorcycle etc..
Our company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high precision and reliability bearings.Each process is in strict accordance with the ISO9001 quality management system,which effectively guarantees the precise of products and stability of the performance. AUTO bearings are mainly exported to the United states,South Korea,Europe,etc., which have reached the high level of foreign similar products.
The soul of our business culture is [Detail makes competitive, innovation makes first-class”.We believe the production and management philosophy of [quality wins ,casting competitive products”.The company adheres to the zero-defect quality management for meeting customer requirements.
Packing
A. plastic box & outer carton & pallets
B. plastic bag & box & carton & pallet
C. tube package & middle box & carton & pallet
D. Depends on your needs
Delivery
A. Most orders will be shipped within 3-5 days of payment being received.
B. Samples will be shipped by cov2urier as FedEx,UPS,DHL,etc.
Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 30 |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Are there specific industries or applications where rolling contact bearings are frequently used?
Rolling contact bearings find extensive use in various industries and applications due to their versatility, load-carrying capacity, and efficiency. Here’s a detailed explanation of some specific industries and applications where rolling contact bearings are frequently employed:
- Automotive Industry:
The automotive industry extensively utilizes rolling contact bearings in various components and systems. These bearings are found in engines, transmissions, wheel hubs, suspension systems, steering columns, and different drivetrain components. In the automotive sector, rolling contact bearings provide reliable support for rotating shafts, facilitate smooth wheel rotation, and contribute to overall vehicle performance and safety.
- Aerospace Industry:
Rolling contact bearings play a critical role in the aerospace industry, where they are used in aircraft engines, landing gear systems, control surfaces, and various other applications. These bearings provide reliable and precise rotation in demanding aerospace environments, contributing to the safety, efficiency, and performance of aircraft.
- Industrial Machinery:
Rolling contact bearings are widely employed in a broad range of industrial machinery. They are found in machine tools, industrial pumps, compressors, conveyors, printing machines, textile machinery, and many other equipment types. These bearings support the rotating components of machinery, enabling smooth and efficient operation while withstanding heavy loads and high speeds.
- Power Generation:
In the power generation sector, rolling contact bearings are utilized in turbines, generators, wind turbines, and other power generation equipment. These bearings withstand the rotational forces and high temperatures associated with power generation, contributing to the efficient conversion of mechanical energy into electrical energy.
- Mining and Construction:
Rolling contact bearings are widely used in mining and construction equipment, such as crushers, conveyors, excavators, and bulldozers. These bearings are designed to handle heavy loads, shock loads, and harsh operating conditions commonly encountered in mining and construction applications.
- Railway Industry:
In the railway industry, rolling contact bearings are utilized in locomotives, passenger trains, freight cars, and rail infrastructure. These bearings support the axles, wheels, and other rotating components of railway systems, ensuring smooth and reliable operation while withstanding the dynamic forces and heavy loads associated with rail transportation.
- Wind Energy:
The wind energy sector relies on rolling contact bearings in wind turbines. These bearings support the rotor shaft, allowing efficient rotation of the turbine blades to convert wind energy into electrical power. Rolling contact bearings in wind turbines are subjected to high axial and radial loads, as well as challenging environmental conditions.
These are just a few examples of the industries and applications where rolling contact bearings are frequently used. They are also employed in countless other sectors, including marine, agriculture, medical equipment, robotics, and more. The versatility and effectiveness of rolling contact bearings make them an essential component in a wide range of machinery and equipment across various industries.
How do rolling contact bearings enhance the overall efficiency and functionality of machinery and equipment?
Rolling contact bearings play a crucial role in enhancing the overall efficiency and functionality of machinery and equipment. Here’s a detailed explanation of how rolling contact bearings contribute to improved efficiency and functionality:
- Reduced Friction:
Rolling contact bearings are designed to minimize friction between moving parts. They consist of rolling elements, such as balls or rollers, that reduce the contact surface area and enable rolling motion. This rolling action results in lower friction compared to sliding contact, allowing machinery to operate with reduced energy consumption. By reducing frictional losses, rolling contact bearings help optimize the efficiency of machinery and equipment.
- Load Distribution:
Rolling contact bearings distribute loads evenly across their rolling elements. This load distribution capability ensures that the forces acting on the machinery are spread out and shared by multiple bearing points. By distributing the load, rolling contact bearings help prevent excessive stress on individual components and minimize the risk of premature failure. This improves the overall functionality and reliability of machinery, allowing it to operate under heavy loads without compromising performance.
- High-Speed Capability:
Rolling contact bearings are designed to operate at high speeds. The rolling elements and raceways are precisely engineered to minimize the centrifugal forces and minimize frictional heat generation. This allows machinery and equipment to achieve higher rotational speeds without compromising performance or reliability. The high-speed capability of rolling contact bearings is particularly advantageous in applications such as automotive engines, turbines, machine tools, and high-speed manufacturing processes.
- Reduced Vibration and Noise:
Rolling contact bearings help reduce vibration and noise in machinery and equipment. The rolling action of the bearing elements minimizes friction-induced vibrations, resulting in smoother operation. Additionally, well-designed and properly lubricated rolling contact bearings dampen vibrations caused by external forces or imbalances in rotating parts. By reducing vibration and noise levels, rolling contact bearings contribute to a quieter and more comfortable working environment, as well as improved accuracy and precision in equipment that requires high levels of stability.
- Versatility and Flexibility:
Rolling contact bearings offer versatility and flexibility in machinery design. They come in various types and configurations, such as deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings, and tapered roller bearings, each suited for specific applications and load conditions. The availability of different bearing sizes and designs allows engineers and designers to select the most appropriate bearing for their specific machinery requirements. This versatility and flexibility enable the optimization of machinery performance and functionality.
- Compact Design:
Rolling contact bearings enable compact and space-saving machinery designs. Their ability to handle high loads while occupying minimal space allows for the creation of more compact equipment. This is particularly beneficial in applications where space is limited, such as automotive, aerospace, and portable devices. The compact design made possible by rolling contact bearings enhances the overall functionality and efficiency of machinery by maximizing the use of available space.
In summary, rolling contact bearings enhance the overall efficiency and functionality of machinery and equipment through reduced friction, load distribution, high-speed capability, vibration and noise reduction, versatility and flexibility in design, and compactness. By optimizing the performance of rotating components, rolling contact bearings contribute to improved energy efficiency, reliability, precision, and longevity of machinery and equipment in various industries.
How do rolling contact bearings differ from other types of bearings like plain bearings?
Rolling contact bearings and plain bearings are two different types of bearings used in mechanical systems, and they differ in their design, operation, and characteristics. Here’s a detailed explanation of the differences between rolling contact bearings and plain bearings:
- Design and Construction:
Rolling contact bearings, as the name suggests, utilize rolling elements (such as balls or rollers) to facilitate smooth motion between the rotating or moving parts. They consist of an inner ring, an outer ring, rolling elements, and a cage or retainer that keeps the rolling elements in position. The rolling elements roll between the raceways of the inner and outer rings, reducing friction and enabling relative motion.
Plain bearings, on the other hand, rely on a sliding interface between the bearing surfaces. They typically consist of two surfaces: a stationary bearing surface and a moving surface. The stationary surface is often a metal shell or housing, while the moving surface is a separate bearing material, such as a low-friction metal or polymer. The two surfaces slide against each other, with a lubricating film separating them to minimize friction.
- Friction and Efficiency:
One of the key differences between rolling contact bearings and plain bearings is the amount of friction generated during operation. Rolling contact bearings have lower friction compared to plain bearings. The rolling elements in rolling contact bearings reduce the contact area and allow for rolling motion, resulting in reduced friction and improved efficiency. In contrast, plain bearings rely on sliding motion, which generates more friction and can lead to higher energy losses.
- Load Capacity and Performance:
Rolling contact bearings are typically designed to handle higher loads and provide better load distribution compared to plain bearings. The rolling elements in rolling contact bearings distribute the loads across their contact surfaces, reducing stress concentrations and enabling the bearings to support heavier loads. This makes rolling contact bearings suitable for applications with higher load requirements, such as heavy machinery and industrial equipment.
Plain bearings, while generally having lower load capacities, offer advantages in applications that require self-lubrication or the ability to operate in harsh environments. The sliding motion in plain bearings helps distribute lubrication evenly across the bearing surfaces, reducing the need for external lubrication systems. Additionally, plain bearings can better tolerate contaminants, such as dirt or debris, which can cause problems in rolling contact bearings.
- Maintenance and Service Life:
Rolling contact bearings typically require less maintenance compared to plain bearings. Rolling contact bearings are designed with pre-defined lubrication systems, and periodic lubrication or inspection is usually sufficient to ensure their proper operation. Plain bearings, on the other hand, may require regular lubrication or replacement of the bearing material to maintain optimal performance.
In terms of service life, rolling contact bearings often have a longer service life compared to plain bearings. The rolling motion and reduced friction in rolling contact bearings result in less wear and longer operational durability. Plain bearings, due to the sliding motion, may experience more wear over time, especially in high-load or high-speed applications.
- Application and Usage:
Rolling contact bearings and plain bearings find their applications in different scenarios. Rolling contact bearings are commonly used in applications that require high-speed rotation, precise motion control, and heavy load-carrying capacity. They are found in various industries, including automotive, aerospace, industrial machinery, and more.
Plain bearings, on the other hand, are often utilized in situations where self-lubrication, resistance to contaminants, or low-speed and oscillating motion are required. They are commonly found in applications such as engines, pumps, turbines, and construction equipment.
In summary, rolling contact bearings and plain bearings differ in their design, operation, friction characteristics, load-carrying capacity, maintenance requirements, and applications. Rolling contact bearings utilize rolling elements for reduced friction, higher load capacity, and efficient motion, making them suitable for high-speed and heavy-load applications. Plain bearings rely on sliding surfaces, offer self-lubrication advantages, and are often used in low-speed or oscillating motion scenarios.
editor by CX 2024-04-23
China Best Sales Machine Tool Spindle Mating Bearing Manufacturers 7032AC/7228AC/7004AC 7002 Angular Contact Ball Bearing supplier
Product Description
Machine Tool Spindle Mating Bearing Manufacturers 7032AC/7228AC/7004AC 7002 Angular Contact Ball Bearing
Product Description
The connection line between the steel ball of the contact ball bearing and the contact point of the inner and outer rings forms an angle with the radial direction. Contact angles are generally divided into 15°, 30°, and 40°, which are represented by letters C, A, and B respectively.
Angular contact ball bearings mainly bear large unidirectional axial loads, and the larger the contact angle, the greater the load-bearing capacity. The material of the cage is steel plate, brass, or engineering plastic, and the forming method is stamping or turning, which is selected according to the bearing form or service conditions. Others include combined angular contact ball bearings, double-row angular contact ball bearings, and four-point contact ball bearings.
Angular contact ball bearings can bear radial load and axial load at the same time. Can work at higher speeds. The larger the contact angle, the higher the axial load-carrying capacity. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Single-row angular contact ball bearings can only bear axial load in 1 direction and will cause additional axial force when bearing radial load. And it can only limit the axial displacement of the shaft or housing in 1 direction. If it is installed in pairs, make the outer rings of a pair of bearings face each other, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. This avoids causing additional axial forces and limits the shaft or housing to axial play in both directions.
Because the raceway of the inner and outer rings of the angular contact ball bearing can have relative displacement on the horizontal axis, it can bear radial load and axial load at the same time – combined load (single row angular contact ball bearing can only bear axial load in 1 direction, Therefore, they are generally installed in pairs). The material of the cage includes brass, synthetic resin, etc., which are distinguished according to the bearing type and service conditions.
Product Parameters
|
Product Name |
Angular Contact Ball Bearing |
|
Type |
Angular Contact Ball Bearing |
|
Structure |
Angular Contact |
|
Applicable Industries |
The machinery manufacturing plant, machine tools, mechanical equipment, motor automobile hub, agricultural machinery |
|
Brand Name |
RPZ /LONK/XWFD/ XWFD ZMW |
|
Accuracy class |
P0, P6, P5, P4, P2 or as required20mm-500mm |
|
Seal type |
Open / 2RS |
|
Size |
20mm-500mm |
|
Number of Rows |
Single row |
|
Origin |
ZheJiang , China |
|
Product Model |
7000cac 7200c 7001acm |
|
Material |
Gcr15 chrome steel / stainless steel bearing |
|
Features |
long life, low friction, high speed |
|
Retainer Type |
Brass / bakelite / steel |
|
Angular Contact Bearing |
||||
|
7000AC |
7200AC |
7303AC |
7406AC |
3304-2RS/ZZ |
|
7001AC |
7201AC |
7304AC |
7407ACP6 |
3305-2RS/ZZ |
|
7002AC |
7202AC |
7305AC |
7408AC |
3306-2RS/ZZ |
|
7003AC |
7203AC |
7306AC |
7409AC |
3307-2RS/ZZ |
|
7004AC |
7204AC |
7307AC |
7410AC |
3308-2RS/ZZ |
|
7005AC |
7205AC |
7308AC |
7412ACM |
3309-2RS/ZZ |
|
7006AC |
7206AC |
7309AC |
7412BM |
3310-2RS/ZZ |
|
7007AC |
7207AC |
7310AC |
7414ACM |
3311-2RS/ZZ |
|
7008AC |
7208AC |
7311AC |
7414BM |
3312-2RS/ZZ |
|
7009AC |
7209AC |
7312AC |
7416ACM |
3313-2RS/ZZ |
|
7571AC |
7210C |
7313AC |
7416BM |
3314-2RS/ZZ |
|
7011AC |
7210AC |
7314AC |
7418ACM |
3315-2RS/ZZ |
|
7012AC |
7211AC |
7315AC |
7418BM |
3316-2RS/ZZ |
|
7013AC |
7212AC |
7315BM |
|
3317-2RS/ZZ |
|
7014AC |
7213AC |
7317AC |
3204-2RS/ZZ |
3318-2RS/ZZ |
|
7015AC |
7214AC |
7317BM |
3205-2RS/ZZ |
3319-2RS/ZZ |
|
7016AC |
7216AC |
7318AC |
3206-2RS/ZZ |
3320-2RS/ZZ |
|
7017AC |
7217AC |
7318BTN |
3207-2RS/ZZ |
|
|
7018AC |
7218AC |
7319AC |
3208-2RS/ZZ |
QJ210 |
|
7571AC |
7219AC |
7319BM |
3209-2RS/ZZ |
QJ211 |
|
7571AC |
7220AC |
7320AC |
3210-2RS/ZZ |
QJ212 |
|
7571AC |
7221AC |
7320BM |
3211-2RS/ZZ |
QJ213 |
|
7026AC |
7222AC |
7322AC |
3212-2RS/ZZ |
QJ214 |
|
7571AC |
7224AC |
7322BM |
3213-2RS/ZZ |
QJ215 |
|
7030AC |
7228AC |
7324ACM |
3214-2RS/ZZ |
QJ216 |
|
7032AC |
7232AC |
7324BM |
3215-2RS/ZZ |
QJ217 |
|
7034AC |
7236AC |
7326ACM |
3216-2RS/ZZ |
QJ218 |
|
7036AC |
7240AC |
7328ACM |
3217-2RS/ZZ |
QJ219 |
|
7038AC |
7244AC |
7328BM |
3218-2RS/ZZ |
QJ220 |
|
|
|
7330ACM |
3219-2RS/ZZ |
QJ222 |
|
|
|
7332ACM |
3220-2RS/ZZ |
QJ224 |
|
|
|
7334ACM |
|
QJ226 |
|
|
|
7336ACM |
|
QJ228 |
|
|
|
7338ACM |
|
QJ230 |
|
|
|
7340ACM |
|
QJ232 |
Detailed Photos
FAQ
Q1:What is your Before-sales Service?
1>. Offer to bear related consultation about technology and application;
2>.Help customers with bearing choice, clearance configuration, product” life, and reliability analysis;
3>. Offer highly cost-effective and complete solution program according to site conditions;
4>. Offer localized program on introduced equipment to save running cost
Q2: What is your After-sales Service?
1>. Offer training about bearing installation and maintenance;
2>.Help customers with trouble diagnosis and failure analysis;
3>. Visit customers regularly and feedback on their rational suggestions and requirements to the company.
Q3: How about your company’s strength?
1>.FREE SAMPLES:
contact us by email or trade manager, we will send the free samples according to your request.
2>. World-Class Bearing:
We provide our customers with all types of indigenous roller bearings of world-class quality.
3>.OEM or Non-Stand Bearings:
Any requirement for Non-standard roller bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry.
4>.Genuine products With Excellent Quality:
The company has always proved the 100% quality products it provides with genuine intent.
5>. After-Sales Service and Technical Assistance:
The company provides after-sales service and technical assistance as per the customer’s requirements and needs.
6>.Quick Delivery:
The company provides just-in-time delivery with its streamlined supply chain.
7>.Cost Saving:
We provide long-life, shock-resistant, and high-reliability roller bearings with excellent quality and better performance.
Resulting in increased cost savings.
Q4: What will we do if you are not satisfied with the product?
A: If have any abnormal, Please contact us at the first time, and we will immediately process
Q5: How long will you respond to our problems?
A: We will respond within 1 hour. 24 hours to solve your problem
Q6: Is optional lubrication provided?
A: We can offer a wide range of oils and greases for a variety of applications. Please contact our engineer for technical
assistance with any special requirements
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 45° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Separated |
| Samples: |
US$ 10/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
What are the Common Signs of Wear or Damage in Tapered Roller Bearings?
Identifying signs of wear or damage in tapered roller bearings is crucial for maintaining optimal performance and preventing costly failures. Here are the common signs to look for:
- Abnormal Noise:
Unusual noises, such as grinding, clicking, or rumbling sounds, may indicate damage within the bearing. These noises could result from worn rollers, raceways, or insufficient lubrication.
- Vibration:
Excessive vibration or unusual vibrations not typically present during operation may indicate an issue with the bearing. Vibration can result from misalignment, worn components, or uneven loading.
- Increased Operating Temperature:
If the bearing becomes excessively hot during operation, it could indicate inadequate lubrication, excessive friction, or other issues. Monitoring temperature changes can help identify potential problems.
- Irregular Rotation:
If the bearing experiences irregular rotation, such as sticking or rough movement, it could be due to damaged rollers, misalignment, or improper preload.
- Visible Wear:
Inspect the bearing for visible signs of wear or damage, such as pitting, scoring, discoloration, or deformation of the bearing components.
- Increased Noise or Vibration Under Load:
If the bearing makes more noise or vibrates noticeably when subjected to load, it could indicate that the bearing is unable to handle the applied load properly.
- Uneven Wear:
Uneven wear patterns on the rollers or raceways can suggest misalignment or inadequate lubrication, causing the bearing to experience uneven loading.
- Loss of Performance:
If the bearing’s performance decreases, such as reduced efficiency or increased friction, it may indicate wear, contamination, or other issues affecting the bearing’s operation.
- Looseness or Play:
If there’s excessive play or looseness in the bearing assembly, it could be a sign of worn components or inadequate preload, impacting the bearing’s stability and performance.
- Leaks or Contaminants:
Inspect for leaks of lubricant or the presence of contaminants around the bearing. Leaks can indicate seal damage, and contaminants can accelerate wear.
- Observable Damage to Components:
If any bearing components, such as rollers, cages, or raceways, appear visibly damaged or deformed, immediate attention is necessary to prevent further issues.
Regular inspection and maintenance are essential to catch these signs early and prevent further damage. Addressing wear or damage promptly can extend the bearing’s lifespan and avoid costly downtime.
Can you Explain the Design and Construction of Tapered Roller Bearings?
The design and construction of tapered roller bearings are characterized by their conical geometry and specific components that enable them to handle radial and axial loads simultaneously. Here’s an overview of their design and construction:
- Components:
Tapered roller bearings consist of the following components:
- Inner Ring:
The inner ring has a conical raceway on its inner surface, which matches the conical shape of the rollers. It serves as the raceway for the rollers and provides support to the rotating assembly.
- Outer Ring:
The outer ring also features a conical raceway on its inner surface that complements the shape of the rollers. The outer ring provides a rigid structure to house the entire bearing assembly.
- Tapered Rollers:
The rollers have a conical shape with varying diameters along their length. This design allows the rollers to make point contact with the inner and outer raceways, distributing loads efficiently.
- Cage:
The cage or retainer holds the rollers in position, maintaining proper spacing and preventing them from coming into contact with each other. The cage material can vary, and its design may affect factors like friction and heat generation.
- Conical Geometry:
The distinguishing feature of tapered roller bearings is their conical geometry. The conical angle is defined by the contact angle between the roller axis and the bearing axis. This angle facilitates effective load distribution and axial load support.
- Load Distribution:
The conical shape of the rollers and raceways allows tapered roller bearings to handle both radial and axial loads. Radial loads are primarily supported by the larger diameter of the rollers at the large end of the cone, while axial loads are absorbed by the smaller diameter near the small end of the cone.
- Adjustable Clearance and Preload:
Many tapered roller bearings allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s internal play, optimizing performance and minimizing friction.
- Thrust Capability:
Tapered roller bearings can handle thrust (axial) loads in one direction, making them suitable for applications where axial loads need to be managed along with radial loads.
- Applications:
Tapered roller bearings find applications in various industries, including automotive, heavy machinery, aerospace, and more. They are used in scenarios that require efficient load distribution and handling of combined loads.
In summary, tapered roller bearings are designed with conical geometry to accommodate both radial and axial loads. Their specific components, such as tapered rollers and a cage, work together to ensure effective load distribution, making them suitable for a wide range of industrial applications.
What Advantages do Tapered Roller Bearings Offer Compared to Other Bearing Types?
Tapered roller bearings offer several advantages that make them a preferred choice in various applications compared to other bearing types. These advantages stem from their unique design and capabilities. Here’s a look at the benefits of tapered roller bearings:
- High Load-Carrying Capacity:
Tapered roller bearings can handle both radial and axial loads simultaneously, making them suitable for applications with combined loads. Their conical geometry allows for effective load distribution, enabling them to support heavy loads without premature wear.
- Efficient Axial Load Handling:
Tapered roller bearings excel at managing axial (thrust) loads in one direction. This capability is crucial in applications where axial loads are present, such as automotive transmissions or industrial machinery.
- Reduced Friction and Heat Generation:
The conical shape of the rollers and the matching raceways result in point contact, reducing friction and minimizing heat generation. This efficiency contributes to improved overall performance and energy savings.
- Adjustable Clearance and Preload:
Tapered roller bearings often allow for adjustable internal clearance or preload. This feature enables fine-tuning of the bearing’s play, optimizing performance and extending the bearing’s lifespan.
- High Precision:
Tapered roller bearings are available in various precision classes to meet different application requirements. Their precision makes them suitable for applications demanding accurate motion control and positioning.
- Versatility:
Tapered roller bearings are used in a wide range of industries and applications, from automotive and heavy machinery to aerospace and industrial equipment. Their ability to handle diverse loads and conditions contributes to their versatility.
- Durability:
Tapered roller bearings are designed to withstand shocks and impacts, making them suitable for applications with dynamic loads or vibrations. Their robust construction contributes to their overall durability.
- High-Speed Capability:
Tapered roller bearings can operate at high speeds due to their efficient contact geometry and reduced friction. This makes them suitable for applications requiring rapid rotation.
- Cost-Effectiveness:
While the initial cost may vary, tapered roller bearings are often cost-effective due to their long service life and ability to handle heavy loads. Their durability can lead to reduced maintenance and replacement costs over time.
- Compatibility with Combined Loads:
Tapered roller bearings are well-suited for applications where radial and axial loads occur simultaneously, eliminating the need for multiple bearing types and simplifying design and installation.
In summary, tapered roller bearings offer a combination of load-carrying capacity, efficiency, adjustability, precision, and versatility that sets them apart from other bearing types. Their ability to handle a variety of loads and conditions makes them an advantageous choice in numerous industrial applications.
editor by CX 2024-04-15
China supplier Double-Direction 234434-M-Sp Angular Contact Trust Ball Bearing 70X260X108mm Machine Tool bearing engineering
Product Description
234434 trust angular contact ball bearing 70X260X108mm Machine tool bearings
Product Description
Angular contact ball bearing:
Angular contact ball bearings are particularly suitable for carrying combined (axial and radial) loads. Sometimes, they also can carry pure axial load and operate in higher speed. Under radial load, axial component force will be produced which must be counteracted. So the bearings are normally adjust against a second bearing.
Application:
Application: Angular Contact Ball Bearing is widely used in cars, compressors, construction, electric motors, food industry, home appliances etc. As a rolling element, it turns the world.
| d | D | B | |
| Bearing No. | mm | mm | mm |
| 234706-M-SP | 32 | 55 | 32 |
| 234707-M-SP | 37 | 62 | 34 |
| 234708-M-SP | 42 | 68 | 36 |
| 234709-M-SP | 47 | 75 | 38 |
| 234710-M-SP | 52 | 80 | 38 |
| 234711-M-SP | 57 | 90 | 44 |
| 234712-M-SP | 62 | 95 | 44 |
| 234713-M-SP | 67 | 100 | 44 |
| 234714-M-SP | 73 | 110 | 48 |
| 234715-M-SP | 78 | 115 | 48 |
| 234716-M-SP | 83 | 125 | 54 |
| 234717-M-SP | 88 | 130 | 54 |
| 234718-M-SP | 93 | 140 | 60 |
| 234719-M-SP | 98 | 145 | 60 |
| 234720-M-SP | 103 | 150 | 60 |
| 234721-M-SP | 109 | 160 | 66 |
| 234722-M-SP | 114 | 170 | 72 |
| 234724-M-SP | 124 | 180 | 72 |
| 234726-M-SP | 135 | 200 | 84 |
| 234728-M-SP | 145 | 210 | 84 |
| 234730-M-SP | 155 | 225 | 90 |
| 234732-M-SP | 165 | 240 | 96 |
| 234734-M-SP | 176 | 260 | 108 |
| 234736-M-SP | 187 | 280 | 120 |
| 234738-M-SP | 197 | 290 | 120 |
| 234740-M-SP | 207 | 310 | 132 |
| 234744-M-SP | 228 | 340 | 144 |
| 234748-M-SP | 248 | 360 | 144 |
| 234752-M-SP | 269 | 400 | 164 |
| 234756-M-SP | 289 | 420 | 164 |
| 234760-M-SP | 310 | 460 | 190 |
| 234764-M-SP | 330 | 480 | 190 |
| 234768-M-SP | 350 | 520 | 212 |
| 234772-M-SP | 370 | 540 | 212 |
| 234776-M-SP | 390 | 560 | 212 |
| 234780-M-SP | 410 | 600 | 236 |
| 234406-M-SP | 30 | 55 | 32 |
| 234407-M-SP | 35 | 62 | 34 |
| 234408-M-SP | 40 | 68 | 36 |
| 234409-M-SP | 45 | 75 | 38 |
| 234410-M-SP | 50 | 80 | 38 |
| 234411-M-SP | 55 | 90 | 44 |
| 234412-M-SP | 60 | 95 | 44 |
| 234413-M-SP | 65 | 100 | 44 |
| 234414-M-SP | 70 | 110 | 48 |
| 234415-M-SP | 75 | 115 | 48 |
| 234416-M-SP | 80 | 125 | 54 |
| 234417-M-SP | 85 | 130 | 54 |
| 234418-M-SP | 90 | 140 | 60 |
| 234419-M-SP | 95 | 145 | 60 |
| 234420-M-SP | 100 | 150 | 60 |
| 234421-M-SP | 105 | 160 | 66 |
| 234422-M-SP | 110 | 170 | 72 |
| 234424-M-SP | 120 | 180 | 72 |
| 234426-M-SP | 130 | 200 | 84 |
| 234428-M-SP | 140 | 210 | 84 |
| 234430-M-SP | 150 | 225 | 90 |
| 234432-M-SP | 160 | 240 | 96 |
| 234434-M-SP | 170 | 260 | 108 |
| 234436-M-SP | 180 | 280 | 120 |
| 234438-M-SP | 190 | 290 | 120 |
| 234440-M-SP | 200 | 310 | 132 |
| 234444-M-SP | 220 | 340 | 144 |
| 234448-M-SP | 240 | 360 | 144 |
| 234452-M-SP | 260 | 400 | 164 |
| 234456-M-SP | 280 | 420 | 164 |
| 234460-M-SP | 300 | 460 | 190 |
| 234464-M-SP | 320 | 480 | 190 |
| 234468-M-SP | 340 | 520 | 212 |
| 234472-M-SP | 360 | 540 | 212 |
| 234476-M-SP | 380 | 560 | 212 |
| 234480-M-SP | 400 | 600 | 236 |
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Company Profile
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| Contact Angle: | as Your Request |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Stainless Steel |
| Samples: |
US$ 100/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How does Proper Lubrication Impact the Performance and Longevity of Tapered Roller Bearings?
Proper lubrication is essential for ensuring optimal performance and longevity of tapered roller bearings. Lubrication plays a critical role in reducing friction, preventing wear, and managing heat generated during operation. Here’s how proper lubrication impacts tapered roller bearings:
- Reduced Friction:
Lubrication forms a thin film between the rolling elements and raceways, reducing direct metal-to-metal contact. This minimizes friction and the associated heat generation, allowing the bearing to operate smoothly and efficiently.
- Wear Prevention:
Lubrication forms a protective barrier that prevents wear and surface damage. Without proper lubrication, friction can lead to accelerated wear, pitting, and even surface scoring, shortening the bearing’s lifespan.
- Heat Dissipation:
Effective lubrication helps dissipate heat generated during operation. This is especially crucial in high-speed applications where excessive heat can lead to premature bearing failure or degradation of lubricant properties.
- Corrosion Protection:
Lubrication helps create a barrier that protects bearing surfaces from environmental factors that could lead to corrosion. This is particularly important in applications exposed to moisture, chemicals, or other corrosive agents.
- Noise and Vibration Reduction:
Proper lubrication can dampen vibrations and reduce noise by providing a cushioning effect between the rolling elements and raceways. This contributes to smoother and quieter operation.
- Longevity:
Well-lubricated bearings experience less wear and stress, leading to extended service life. Bearings that are inadequately lubricated or run dry are prone to premature failure due to excessive wear, heat buildup, and damage to bearing surfaces.
- Efficiency:
Adequate lubrication maintains the bearing’s efficiency by minimizing energy losses due to friction. Bearings that lack proper lubrication require more energy to overcome higher friction levels, resulting in reduced efficiency.
- Lubrication Methods:
Various lubrication methods are available, including grease lubrication and oil lubrication. The choice depends on factors such as speed, load, temperature, and application requirements.
To ensure proper lubrication:
- Follow Manufacturer Recommendations:
Consult the bearing manufacturer’s recommendations for lubricant type, viscosity, and replenishment intervals.
- Monitor and Maintain:
Regularly monitor the condition of the lubricant and the bearing’s performance. Implement a maintenance schedule for lubricant replacement or replenishment.
- Environmental Considerations:
Consider the operating environment’s temperature, contamination levels, and exposure to external elements. Some applications may require special lubricants for extreme conditions.
In summary, proper lubrication is crucial for maintaining tapered roller bearings’ performance, preventing wear, reducing friction and heat, and extending their lifespan. A well-lubricated bearing contributes to smoother operation, lower maintenance costs, and improved efficiency.
What are the Common Signs of Wear or Damage in Tapered Roller Bearings?
Identifying signs of wear or damage in tapered roller bearings is crucial for maintaining optimal performance and preventing costly failures. Here are the common signs to look for:
- Abnormal Noise:
Unusual noises, such as grinding, clicking, or rumbling sounds, may indicate damage within the bearing. These noises could result from worn rollers, raceways, or insufficient lubrication.
- Vibration:
Excessive vibration or unusual vibrations not typically present during operation may indicate an issue with the bearing. Vibration can result from misalignment, worn components, or uneven loading.
- Increased Operating Temperature:
If the bearing becomes excessively hot during operation, it could indicate inadequate lubrication, excessive friction, or other issues. Monitoring temperature changes can help identify potential problems.
- Irregular Rotation:
If the bearing experiences irregular rotation, such as sticking or rough movement, it could be due to damaged rollers, misalignment, or improper preload.
- Visible Wear:
Inspect the bearing for visible signs of wear or damage, such as pitting, scoring, discoloration, or deformation of the bearing components.
- Increased Noise or Vibration Under Load:
If the bearing makes more noise or vibrates noticeably when subjected to load, it could indicate that the bearing is unable to handle the applied load properly.
- Uneven Wear:
Uneven wear patterns on the rollers or raceways can suggest misalignment or inadequate lubrication, causing the bearing to experience uneven loading.
- Loss of Performance:
If the bearing’s performance decreases, such as reduced efficiency or increased friction, it may indicate wear, contamination, or other issues affecting the bearing’s operation.
- Looseness or Play:
If there’s excessive play or looseness in the bearing assembly, it could be a sign of worn components or inadequate preload, impacting the bearing’s stability and performance.
- Leaks or Contaminants:
Inspect for leaks of lubricant or the presence of contaminants around the bearing. Leaks can indicate seal damage, and contaminants can accelerate wear.
- Observable Damage to Components:
If any bearing components, such as rollers, cages, or raceways, appear visibly damaged or deformed, immediate attention is necessary to prevent further issues.
Regular inspection and maintenance are essential to catch these signs early and prevent further damage. Addressing wear or damage promptly can extend the bearing’s lifespan and avoid costly downtime.
What Factors should be Considered when Selecting a Tapered Roller Bearing for a Specific Application?
Choosing the right tapered roller bearing for a specific application involves considering various factors to ensure optimal performance and reliability. Here are the key factors to consider:
- Load Requirements:
Assess the types and magnitudes of both radial and axial loads the bearing will experience. Choose a tapered roller bearing with a load capacity that comfortably exceeds the expected loads to prevent premature wear or failure.
- Speed:
Determine the required rotational speed of the bearing. High-speed applications may require bearings designed for reduced friction and heat generation to maintain efficiency and avoid overheating.
- Precision and Tolerance:
Consider the level of precision required for the application. Tapered roller bearings are available in different precision classes, such as ABEC (Annular Bearing Engineering Committee) grades, which impact factors like smoothness and accuracy of rotation.
- Mounting and Installation:
Assess the available space for mounting the bearing and consider the ease of installation. Bearings with adjustable clearance or preload might be advantageous for fine-tuning the bearing’s internal play.
- Temperature and Environment:
Take into account the operating temperature range and environmental conditions of the application. Extreme temperatures or corrosive environments may require specific bearing materials or coatings.
- Lubrication:
Choose an appropriate lubricant based on the application’s speed, temperature, and load conditions. Proper lubrication ensures smooth operation, reduces friction, and prolongs the bearing’s lifespan.
- Cost and Budget:
Consider the budget allocated for bearings. High-precision or specialized bearings may come at a higher cost, but their performance benefits can outweigh the initial investment over the bearing’s service life.
- Application Type:
Identify the specific industry and application in which the bearing will be used. Tapered roller bearings are employed in various sectors, including automotive, heavy machinery, aerospace, and more.
- Expected Lifespan:
Estimate the required bearing lifespan for the application. Factors such as load, speed, and maintenance practices can impact the bearing’s longevity.
- Bearing Size and Design:
Choose a bearing size that fits within the application’s space constraints while providing the necessary load capacity. The design, including the number and arrangement of rollers, can influence load distribution and performance.
- Maintenance Requirements:
Consider the maintenance schedule and accessibility for bearing inspection and replacement. Bearings in applications with limited maintenance intervals may require enhanced durability.
In conclusion, selecting a tapered roller bearing for a specific application involves assessing load requirements, speed, precision, mounting, temperature, lubrication, cost, application type, expected lifespan, bearing size, and maintenance considerations. Careful evaluation of these factors ensures that the chosen bearing meets the demands of the application while providing reliable performance and longevity.
editor by CX 2024-04-04