China Hot selling Thrust Ball Bearings with Shielded for Scissor Jack 10*25.5*9 51100 Shielded Thrust Ball Bearings Manufacturer with Great quality

Product Description

  Thrust ball bearing is a separable bearing,it  consist of 2 precision chrome stee or stainless steel washers (ring) and a ball complement spaced by bronze retainer(as well as stainless steel stainer). Two washers are separated from retainer in structure. In order to make up for the shortcomings of separated thrust bearing, such as small load and easy to get dirty,compared with thrust ball bearing,thrust ball bearing with shields is thrust ball bearing covered with iron steel outside. RUNSTAR designs and manufactures shielded thrust ball bearings,it is belong to a one-pieces thrust ball bearings which has an outer iron shell to fix the thrust ball  bearing together as dust shield against  dust.






Partial Thrust Ball Bearing with Shields

Part Number Raceway type  bore diameter of (d) outer diamter (D) thickness(H) Load Rating Cr(KN) Load Rating Cor(KN) Weight/g
51100 groove raceway 10 25.5 9      
51101 groove raceway 12 27 10      
51102 groove raceway 15 30 10      
51103 groove raceway 17 31.5 9.5      
51104 groove raceway 20 37 11      
51105 groove raceway 25 45 11.5      
51203 groove raceway 17 37 13      
51204 groove raceway 20 42 14.5      
51205 groove raceway 25 49 16      
51206 groove raceway 30 53 16      
51207 groove raceway 35 65 18      
























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Precision Rating: ABEC-1, ABEC-3, Aberc-5
Type: Ball
Cage: Steel Cage.Brass Cage
US$ 3/Set
1 Set(Min.Order)


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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

shielded bearing

Are shielded bearings suitable for high-speed applications?

Yes, shielded bearings can be suitable for high-speed applications, but their suitability depends on various factors such as the bearing design, materials, and operating conditions. Here’s a detailed explanation of the suitability of shielded bearings for high-speed applications:

Shielded bearings are designed to accommodate a wide range of operating speeds, including high-speed applications. However, it’s important to consider the following factors when determining the suitability of shielded bearings for high-speed use:

  1. Bearing design: The design of the shielded bearing plays a significant role in its ability to handle high speeds. Factors such as the type of rolling elements (balls or rollers), cage design, and internal clearances affect the bearing’s ability to minimize friction, reduce heat generation, and maintain stability at high speeds. Manufacturers provide specific speed ratings for their shielded bearings, indicating the maximum recommended rotational speed. It’s important to select a shielded bearing with a speed rating that exceeds or matches the operating speed requirements of the application.
  2. Bearing materials: The materials used in shielded bearings can impact their performance at high speeds. High-quality materials with excellent hardness, dimensional stability, and low friction coefficients are preferred for high-speed applications. Common bearing materials include steel, stainless steel, and ceramics. Ceramic bearings, in particular, are known for their high-speed capabilities due to their low density and superior hardness. Consider choosing a bearing material that is well-suited for the anticipated speed and operating conditions.
  3. Lubrication: Proper lubrication is critical for high-speed applications. Lubrication helps reduce friction, dissipate heat, and minimize wear between the bearing components. It’s important to select a lubricant that is specifically recommended for high-speed applications and provides adequate lubrication under the anticipated speed and temperature conditions. The lubrication quantity and method should also be optimized to ensure sufficient lubrication without causing excessive drag or overheating.
  4. Temperature control: High-speed applications can generate significant heat due to increased friction. Adequate temperature control measures, such as proper ventilation, cooling systems, or selecting bearings with heat-resistant materials, may be necessary to prevent excessive temperature rise and potential bearing damage or failure.
  5. Application-specific considerations: High-speed applications may involve additional factors that need to be considered. For example, the presence of external forces, vibration, or misalignments can affect the performance and stability of the shielded bearing at high speeds. It’s important to evaluate these factors and choose a bearing design that can withstand the specific demands of the application.

By considering these factors and selecting shielded bearings with suitable designs, materials, lubrication, and temperature control measures, you can ensure their reliability and performance in high-speed applications.

shielded bearing

What sizes are available for shielded bearings?

Shielded bearings are available in a wide range of sizes to accommodate various applications and equipment. Here’s a detailed explanation of the sizes available for shielded bearings:

Shielded bearings are typically categorized based on their bore diameter, outer diameter, and width. The most common sizing convention used for shielded bearings is the ISO (International Organization for Standardization) standard, which provides standardized dimensions and tolerances for bearings. The sizes of shielded bearings are usually specified using a combination of alphanumeric codes that represent their dimensions.

The bore diameter is the inner diameter of the bearing and is denoted by the letter “d”. It is typically measured in millimeters (mm) or inches (in). Common bore diameter sizes for shielded bearings range from a few millimeters up to several hundred millimeters, depending on the specific application and industry requirements.

The outer diameter of the bearing is denoted by the letter “D” and is also measured in millimeters or inches. The outer diameter of shielded bearings can vary significantly, ranging from small sizes to several meters for large industrial applications.

The width or thickness of the bearing is denoted by the letter “B” and is again measured in millimeters or inches. The width of shielded bearings can vary depending on the design and application requirements.

Additionally, shielded bearings may have different series or designations that indicate specific dimensional and performance characteristics. Common series for shielded bearings include the 6000 series, 6200 series, 6300 series, and so on. Each series has its own range of sizes and load-carrying capacities.

It’s important to note that the availability of specific sizes may vary among manufacturers and suppliers. However, most manufacturers offer a wide range of standard sizes to meet common industry needs. They may also provide customized or specialized sizes based on customer requirements.

When selecting shielded bearings, it’s crucial to identify the appropriate size that matches the application’s load, speed, and operating conditions. Consult the manufacturer’s catalogs, technical specifications, or contact their representatives to determine the available sizes and choose the optimal bearing size for your specific application.

shielded bearing

What are the applications of shielded bearings?

Shielded bearings find applications in various industries and systems where moderate protection against contamination and retention of lubrication is required. Here’s a detailed explanation of the applications of shielded bearings:

1. Automotive Industry:

Shielded bearings are widely used in the automotive industry for various applications, including wheel bearings, engine components, transmission systems, and suspension systems. They provide protection against dust, dirt, and moisture while retaining lubrication, ensuring optimal performance and longevity of automotive components.

2. Industrial Machinery:

In industrial machinery, shielded bearings are commonly used in motors, pumps, fans, conveyors, and other rotating equipment. These bearings help prevent the ingress of contaminants, such as particles or debris present in industrial environments, while maintaining lubrication. Shielded bearings are suitable for applications where regular maintenance and relubrication can be performed.

3. Electric Motors:

Electric motors, including both AC and DC motors, utilize shielded bearings in their construction. These bearings help protect the internal components of the motor from dust, dirt, and moisture, ensuring smooth operation and extending the motor’s service life. Shielded bearings are often used in motor shafts, pulleys, and other rotating parts.

4. Appliances:

Shielded bearings are found in various household appliances, such as washing machines, refrigerators, air conditioners, and vacuum cleaners. They provide protection against contaminants commonly found in domestic environments and help maintain the efficiency and durability of appliance components.

5. Agricultural Equipment:

Agricultural machinery, including tractors, harvesters, and irrigation systems, utilize shielded bearings to withstand the challenging conditions encountered in agricultural operations. These bearings protect against dust, dirt, crop debris, and moisture, ensuring reliable performance and reducing downtime in agricultural equipment.

6. HVAC Systems:

In heating, ventilation, and air conditioning (HVAC) systems, shielded bearings are used in fans, blowers, pumps, and other components. They help prevent the entry of dust and other contaminants commonly present in HVAC environments, ensuring efficient operation and minimizing maintenance requirements.

7. Power Tools:

Shielded bearings are commonly employed in power tools, such as drills, grinders, and saws. They provide protection against dust and debris generated during tool operation, ensuring smooth and reliable performance.

These are just a few examples of the many applications of shielded bearings. The versatility of shielded bearings makes them suitable for a wide range of industries and systems where moderate contamination protection and lubrication retention are required.

It’s important to consult with bearing manufacturers, suppliers, or industry experts to select the appropriate shielded bearings for specific applications, taking into account factors such as load capacity, operating conditions, and maintenance requirements.

China Hot selling Thrust Ball Bearings with Shielded for Scissor Jack 10*25.5*9 51100 Shielded Thrust Ball Bearings Manufacturer   with Great qualityChina Hot selling Thrust Ball Bearings with Shielded for Scissor Jack 10*25.5*9 51100 Shielded Thrust Ball Bearings Manufacturer   with Great quality
editor by CX 2024-01-30

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