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China best Radial Ball Bearing with Extra Thin Width and Mounted Flange for Bicycles Sf63800-2RS drive shaft bearing

Product Description

Type No. Metric Type Bore Size: 1.50mm up to 12mm
Inch Type Bore Size: 0.0781″ up to 0.75″ 
Flanged Metric Type Bore Size: 1.50mm up to 12mm
Flanged Inch Type Bore Size: 0.0781″ up to 0.75″ 
Materials Inner/Outer Race AISI440C, AISI420
Balls AISI440C, AISI420, Si3N4 Ceramic
Retainer Rivet Cage, Crown Cage, Nylon Cage
Seals/Shields ZZ, ZZS, TTS, 2RS, 2RU
Precision ABEC-1, ABEC-3, ABEC-5, ABEC-7
Vibration & Noise Z1, Z1V1, Z2V1, Z2V2, Z3V3
Lubrication SRL,PS2, B325, SRI#2,  M28, Oil Lube, Dried, etc..

We mainly focuses on stainless steel small-sized ball bearings with full ranges. We’re especially good at the production of Extra-thin bearings, Bearings with flange, Hybrid Ceramic ball bearings, Non-standard bearings and Bearings with Teflon seals.

After decade of experiences to understand bearings and the needs of our clients, we spent much time and achieved enough capability for customized bearings, and continuously develop brilliant solutions for end-users. 

Applications: 
1). fishing equipments
2). hobby models
3). remote radio control products
4). power transmissions
5). medical instruments
6). office appliances, and more…

Q1: Can I get a free sample?
A1: We provide samples free in freight collected. For special samples requirement, please contact us for more details. 
Q2: How could I pay?
A2: We prefer T/T or L/C at sight. If you prefer other payment terms, please contact us freely.
Q3: What is your brand and packing way? Can you produce my brand and packing?
A3: Our brand is SGC and our own packing materials. We can make your brand. For more details, please contact us.
Q4: What is the delivery lead time?
A4: It depends on the order quantities. The mass production lead time is about 45-60 days after receipt of the deposit. 
Q5: Are you manufacturer or  trading company?
A5: We are manufacturer and exporter. We provide all kinds of OEM services for clients around the world.
Q6: Where is your main market?
A6: We export to the North America, Mexico, Australia, South-east Asia, Europe, U.A.E., Turkey, and other countries.

Our Services
1. Professional QC and QA team to make sure all products qualified before shipping.
2. Competitive price.
3 .Standard package to ensure the safe transportation.
4. Professional service.

Why choose us?
1. Production
    Qualified production, competitive price, professional service. 
2. Quality
    All products are inspected 100% before shipment by relative testing equipments.

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Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Stainless Steel
Materials of Races: AISI440c
Samples:
US$ 0/Set
1 Set(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

radial bearing

Can you describe the load-carrying capacity and load ratings of radial bearings?

The load-carrying capacity and load ratings of radial bearings are crucial factors to consider when selecting and designing bearing systems for industrial applications. Here is a detailed description of these aspects:

Load-Carrying Capacity:

The load-carrying capacity of a radial bearing refers to its ability to support and distribute loads without excessive deformation or failure. It is a measure of the maximum load that a bearing can handle under specific operating conditions. The load-carrying capacity is influenced by several factors, including the bearing size, design, material, lubrication, operating speed, and temperature.

Radial bearings are designed to primarily support radial loads, which are forces acting perpendicular to the shaft’s axis. These loads can include the weight of rotating components, belt tension, pulley forces, or other radial forces. The load-carrying capacity of a radial bearing is specified for radial loads and is typically provided by the manufacturer in terms of dynamic load rating and static load rating.

Dynamic Load Rating:

The dynamic load rating of a radial bearing indicates the maximum radial load that the bearing can withstand under ideal operating conditions, with a calculated 90% reliability over a specified number of revolutions or operating hours. It represents the load at which the bearing is expected to have a basic rating life of one million revolutions.

The dynamic load rating takes into account factors such as the bearing’s geometry, material properties, and internal design, which affect its ability to distribute the load and resist fatigue failure. It is expressed in units of force (often in Newtons or pounds) and is provided by the bearing manufacturer. When selecting a radial bearing, it is crucial to ensure that the anticipated radial load falls within the dynamic load rating to prevent premature bearing failure.

Static Load Rating:

The static load rating of a radial bearing refers to the maximum radial load that the bearing can withstand without permanent deformation or damage while stationary. Unlike the dynamic load rating, the static load rating does not account for the bearing’s ability to handle fatigue-related failures over a specified number of revolutions but focuses on the load capacity under static conditions.

The static load rating is typically higher than the dynamic load rating due to the absence of rotational forces and associated fatigue effects. It provides an indication of the bearing’s ability to support heavy loads without undergoing permanent deformation. Like the dynamic load rating, the static load rating is expressed in units of force and is provided by the bearing manufacturer. It is crucial to ensure that the static load rating exceeds the anticipated radial load to prevent bearing damage or failure.

Load Rating Calculation:

The load ratings of radial bearings are determined through standardized calculation methods based on industry standards, such as ISO and ANSI/ABMA standards. These calculations consider factors such as the bearing’s geometry, material properties, internal design, and expected operating conditions.

The load ratings are influenced by various factors, including the number and size of the rolling elements, the contact angle, the material strength, and the bearing’s internal clearance. Manufacturers perform extensive testing and analysis to determine the load ratings of their radial bearings and provide the values in their product catalogs to assist engineers and designers in selecting the appropriate bearing for specific applications.

In summary, the load-carrying capacity and load ratings of radial bearings play a critical role in determining their suitability for various industrial applications. The dynamic load rating indicates the maximum radial load that a bearing can handle under ideal operating conditions and a specified reliability level, while the static load rating represents the maximum radial load the bearing can withstand without permanent deformation while stationary. Understanding these load ratings is essential for selecting radial bearings that can reliably and safely support the anticipated loads in industrial machinery and equipment.

radial bearing

How do radial bearings perform in high-speed or high-load applications?

Radial bearings are designed to perform reliably in high-speed or high-load applications, where they are subjected to demanding operating conditions. These bearings are engineered to withstand the forces and speeds associated with such applications. Here’s a detailed explanation of how radial bearings perform in high-speed or high-load applications:

1. High-Speed Applications:

In high-speed applications, radial bearings are designed to minimize friction and reduce heat generation. They employ various features to achieve this, such as optimized ball or roller designs, precise manufacturing tolerances, and advanced cage materials. These design elements help reduce centrifugal forces, improve rolling element guidance, and maintain stable operation at high rotational speeds. Additionally, high-quality lubricants are used to ensure proper lubrication and temperature control, enabling the bearing to operate efficiently and reliably even at high speeds.

2. High-Load Applications:

Radial bearings are engineered to handle high loads encountered in various applications. They are designed with robust construction, using high-quality materials and advanced bearing geometries. These features enable radial bearings to distribute the applied loads evenly across their contact surfaces, minimizing stress concentrations and preventing premature failure. Additionally, radial bearings may incorporate specialized cage designs or additional rollers or balls to enhance their load-carrying capacity. The selection of the appropriate bearing type and size, along with proper lubrication, is crucial to ensure optimal performance and longevity in high-load applications.

3. Heat Dissipation:

In both high-speed and high-load applications, radial bearings must effectively dissipate heat generated during operation. Excessive heat can lead to premature bearing failure or degradation of lubricants. Radial bearings are designed with features that promote efficient heat dissipation, such as internal clearances, optimized bearing materials, and effective lubrication systems. These features help maintain the operating temperature within acceptable limits, ensuring the integrity and performance of the bearing in demanding conditions.

4. Cage Design:

The cage design of radial bearings is an essential factor in their performance in high-speed or high-load applications. The cage holds the rolling elements in position, preventing contact and ensuring proper spacing. In high-speed applications, cages with low friction and good guidance properties are used to minimize heat generation and maintain stable operation. In high-load applications, stronger and stiffer cage materials are employed to withstand the forces exerted by the applied loads. The cage design is optimized to balance the trade-off between strength, guidance, and friction characteristics, ensuring the reliable performance of the radial bearing under demanding conditions.

5. Lubrication and Contamination Control:

In high-speed or high-load applications, proper lubrication is crucial for the performance and longevity of radial bearings. Lubricants with high viscosity and excellent thermal stability are used to ensure adequate lubrication under extreme conditions. Effective lubrication minimizes friction, reduces wear, and controls temperature rise. Additionally, contamination control is essential to prevent abrasive particles or contaminants from entering the bearing and causing damage. Sealing solutions and proper maintenance practices are employed to safeguard the bearing against contamination in high-speed or high-load applications.

6. Application-Specific Considerations:

When using radial bearings in high-speed or high-load applications, it is important to consider the specific requirements and conditions of the application. Factors such as operating temperature, rotational speed, applied loads, vibration levels, and environmental conditions should be taken into account during the bearing selection process. Working closely with bearing manufacturers or industry experts can help ensure that the chosen radial bearings are suitable for the specific high-speed or high-load application, optimizing performance and maximizing bearing life.

In summary, radial bearings are designed to perform reliably in high-speed or high-load applications. Through their specialized design, robust construction, efficient heat dissipation, optimized cage designs, proper lubrication, and consideration of application-specific factors, radial bearings can meet the challenges of demanding operating conditions, providing reliable and long-lasting performance.

radial bearing

Are there specific considerations for choosing radial bearings in applications with varying radial loads or operating conditions?

Choosing radial bearings for applications with varying radial loads or operating conditions requires careful consideration of several factors. The selection process should take into account the specific requirements and challenges posed by the varying loads and operating conditions. Here’s a detailed explanation of the specific considerations for choosing radial bearings in such applications:

1. Load Capacity:

One of the primary considerations is the load capacity of the radial bearing. It is essential to evaluate the expected range of radial loads and ensure that the selected bearing can handle the maximum load without exceeding its capacity. The load capacity of a bearing is typically specified by the manufacturer and is influenced by factors such as bearing size, design, and materials. It is important to choose a bearing with a sufficient load capacity to accommodate the varying radial loads encountered in the application.

2. Dynamic and Static Load Ratings:

The dynamic and static load ratings provided by the bearing manufacturer are crucial for assessing the bearing’s ability to handle varying loads. The dynamic load rating indicates the maximum load a bearing can sustain for a specified number of rotations without experiencing excessive wear or fatigue. The static load rating represents the maximum load the bearing can withstand without permanent deformation. Comparing the expected loads in the application with the dynamic and static load ratings helps ensure that the selected bearing is suitable for the varying radial loads.

3. Bearing Clearance:

Bearing clearance refers to the internal gap between the rolling elements and the raceways. In applications with varying loads, it is important to consider the appropriate bearing clearance. A tighter clearance may be suitable for higher loads as it minimizes internal movement and reduces the risk of excessive wear. On the other hand, a looser clearance may be preferred for lighter loads to ensure smooth operation and minimize friction. It is crucial to consult the bearing manufacturer’s guidelines and recommendations to determine the optimal clearance for the specific application.

4. Lubrication:

Varying radial loads can affect the lubrication requirements of the bearing. Higher loads may result in increased friction and heat generation, necessitating appropriate lubrication to ensure proper operation and prevent premature failure. It is important to select the right type of lubricant and consider factors such as viscosity, temperature range, and compatibility with the bearing materials. In applications with varying loads, periodic monitoring of lubrication conditions and maintenance intervals is essential to ensure optimal lubrication and prevent issues associated with inadequate lubrication.

5. Bearing Design and Materials:

The design and materials of the radial bearing play a significant role in its ability to withstand varying loads and operating conditions. Different bearing designs, such as deep groove ball bearings, cylindrical roller bearings, or tapered roller bearings, have varying load capacities and performance characteristics. The choice of bearing material, such as steel, ceramic, or polymer, can also impact factors such as strength, fatigue resistance, and corrosion resistance. It is important to select a bearing design and material that are suitable for the anticipated loads and operating conditions in the application.

6. Temperature and Environmental Factors:

Varying radial loads can affect the temperature and environmental conditions within the bearing. Higher loads can result in increased heat generation, which may require additional considerations for heat dissipation and thermal management. Similarly, if the application involves exposure to moisture, chemicals, or abrasive particles, it is important to select a bearing with appropriate seals or shields to protect against contamination. Considering the temperature and environmental factors helps ensure the longevity and reliability of the bearing in applications with varying loads.

7. Application-Specific Considerations:

Each application may have unique requirements or constraints that need to be taken into account when selecting radial bearings. Factors such as speed, vibration levels, mounting arrangements, space limitations, and maintenance accessibility should be considered. Consulting with bearing manufacturers or industry experts can provide valuable insights and guidance for choosing the most suitable radial bearings for applications with varying loads and operating conditions.

By carefully evaluating these specific considerations, it is possible to select radial bearings that can reliably and efficiently handle the varying radial loads encountered in the application, ensuring optimal performance and durability.

China best Radial Ball Bearing with Extra Thin Width and Mounted Flange for Bicycles Sf63800-2RS   drive shaft bearingChina best Radial Ball Bearing with Extra Thin Width and Mounted Flange for Bicycles Sf63800-2RS   drive shaft bearing
editor by CX 2024-04-17