China Hot selling High Precision Small Axial Ball Bearing with Shields 15X30X10 51102 Shielded Axial Ball Bearings for Scissor Jack with Best Sales

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.

 

 

 

PRODUCTS CATALOGUE

 

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     25g
51101 groove raceway 12 27 10     27g
51102 groove raceway 15 30 10     29g
51103 groove raceway 17 31.5 9.5     31g
51104 groove raceway 20 37 11     47g
51105 groove raceway 25 45 11.5     72g
51203 groove raceway 17 37 13     62g
51204 groove raceway 20 42 14.5     98g
51205 groove raceway 25 49 16     143g
51206 groove raceway 30 53 16     169g
51207 groove raceway 35 65 18         273g

 

 

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Precision Rating: ABEC-1, ABEC-3, Aberc-5
Type: Ball
Cage: Steel Cage.Brass Cage
Samples:
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

How to identify the specifications of a shielded bearing?

Identifying the specifications of a shielded bearing is essential for selecting the appropriate replacement or determining compatibility with a specific application. Here’s a detailed explanation of how to identify the specifications of a shielded bearing:

  1. Manufacturer markings: Start by examining the bearing for any markings or labels provided by the manufacturer. These markings typically include important information such as the manufacturer’s logo, bearing part number, and sometimes additional codes or symbols.
  2. Bearing part number: The bearing part number is often the most crucial piece of information for identifying the specifications of a shielded bearing. It usually consists of a combination of letters, numbers, and symbols unique to that specific bearing model. The part number can be used to cross-reference with the manufacturer’s catalog or website to obtain detailed specifications.
  3. Bearing type and series: Determine the type of shielded bearing, such as deep groove ball bearing, angular contact bearing, or cylindrical roller bearing. Additionally, note the bearing series, which indicates the design and performance characteristics of the bearing within a specific size range.
  4. Size dimensions: Measure the bearing’s inner diameter (ID), outer diameter (OD), and width (or thickness). These dimensions are commonly expressed in millimeters (mm) and are crucial for ensuring compatibility with the bearing housing or shaft.
  5. Load and speed ratings: The load and speed ratings of a shielded bearing indicate its capacity to handle radial and axial loads, as well as its maximum allowable rotational speed. These ratings are typically specified by the manufacturer and can be found in their catalog or technical documentation.
  6. Bearing materials: Take note of the materials used in the construction of the shielded bearing, especially the inner and outer rings, rolling elements, and shields. Common materials include stainless steel, chrome steel, ceramics, and various types of polymers. The choice of materials can affect the bearing’s performance and suitability for specific environments.
  7. Sealing or shielding type: Determine the specific type of shield used in the bearing, such as metal shields (usually made of steel or stainless steel) or non-metallic shields (such as rubber or plastic). This information is important for understanding the level of protection provided by the shield against contaminants and debris.
  8. Additional features: Some shielded bearings may have additional features or specifications, such as special coatings for enhanced corrosion resistance, high-temperature capabilities, or specific industry certifications. These features should be identified and considered if they are relevant to the intended application.

It’s important to note that the above steps provide a general guideline for identifying the specifications of a shielded bearing. The specific information and format may vary depending on the manufacturer and bearing model. Consulting the manufacturer’s catalog, technical documentation, or reaching out to their customer support can provide more detailed and accurate information about the bearing’s specifications.

shielded bearing

Who are the leading manufacturers of shielded bearings?

Several manufacturers specialize in the production of shielded bearings, offering a wide range of options to meet various industrial and commercial needs. Here’s a detailed explanation of some of the leading manufacturers of shielded bearings:

  • SKF: SKF is a well-known global manufacturer of bearings, including shielded bearings. They offer a comprehensive range of shielded bearings in various sizes, configurations, and materials. SKF’s shielded bearings are widely used in industries such as automotive, aerospace, industrial machinery, and power transmission.
  • NSK: NSK is a reputable manufacturer of bearings with a strong presence in the market. They produce a wide range of shielded bearings, known for their high quality and reliability. NSK’s shielded bearings find applications in industries such as automotive, industrial automation, and medical equipment.
  • NTN: NTN is a leading manufacturer of bearings, including shielded bearings, with a global presence. They offer a diverse range of shielded bearings for various applications and industries such as automotive, industrial machinery, and electrical equipment.
  • Timken: Timken is a well-established manufacturer of bearings and related products. They produce shielded bearings that are known for their durability and performance. Timken’s shielded bearings are used in industries such as automotive, aerospace, and heavy machinery.
  • Schaeffler (FAG and INA): Schaeffler is a renowned manufacturer of bearings under the FAG and INA brands. They manufacture shielded bearings with a focus on precision and reliability. Schaeffler’s shielded bearings find applications in industries such as automotive, aerospace, and industrial machinery.
  • Koyo: Koyo, a subsidiary of JTEKT Corporation, is a leading manufacturer of bearings, including shielded bearings. They offer a wide range of shielded bearings known for their quality and performance. Koyo’s shielded bearings are used in various industries such as automotive, industrial machinery, and agriculture.

These manufacturers have established a strong reputation in the bearing industry and are known for their commitment to quality, innovation, and customer satisfaction. However, it’s important to note that this list is not exhaustive, and there are other reputable manufacturers that produce shielded bearings as well.

When selecting a manufacturer for shielded bearings, consider factors such as product quality, reliability, technical support, availability, and pricing. It’s advisable to consult with local distributors or contact the manufacturers directly to find the most suitable supplier for your specific application requirements.

shielded bearing

How does a shielded bearing differ from a sealed bearing?

A shielded bearing and a sealed bearing are two different types of rolling bearings that offer varying levels of protection against contaminants and retention of lubrication. Here’s a detailed explanation of the differences between a shielded bearing and a sealed bearing:

Shielded Bearing:

A shielded bearing incorporates shields made of metal (typically steel or stainless steel) to cover the rolling elements and raceways of the bearing. The shields act as a physical barrier against solid contaminants, such as dust, dirt, or debris, preventing them from entering the bearing. The primary functions of the shields are to protect the internal components from contamination and retain the lubricating grease or oil within the bearing.

Shielded bearings provide moderate protection against contaminants, but they are not completely sealed. They allow for some exchange of air and limited penetration of fine particles. Shielded bearings are suitable for applications where the risk of contamination is moderate and where regular maintenance and relubrication can be performed. They are commonly designated with the suffix “Z” or “ZZ” in the bearing model or part number.

Sealed Bearing:

A sealed bearing, on the other hand, incorporates sealing elements made of synthetic rubber or other materials to provide a more effective barrier against contaminants. The seals are designed to completely enclose the internal components of the bearing and prevent the ingress of solid and liquid contaminants, such as dust, dirt, water, or chemicals.

Sealed bearings offer a higher level of protection and are suitable for applications where the risk of contamination is high or where maintenance and relubrication are more challenging. The seals help to extend the bearing’s service life, reduce the need for relubrication, and provide enhanced protection in harsh or demanding environments.

Sealed bearings are typically designated with the suffix “RS” or “2RS” in the bearing model or part number. The “RS” suffix indicates a single seal on one side of the bearing, while “2RS” indicates seals on both sides.

It’s important to note that while sealed bearings provide superior protection against contaminants, they may generate slightly more friction and heat due to the increased sealing contact compared to shielded bearings. This can result in a slightly lower operating speed or higher torque compared to shielded bearings.

The choice between a shielded bearing and a sealed bearing depends on the specific requirements of the application, including the level of contamination risk, the need for maintenance and relubrication, and the operating conditions. Consulting with bearing manufacturers, distributors, or industry experts can help in selecting the most appropriate bearing type for a given application.

Overall, shielded bearings and sealed bearings are both effective solutions for protecting rolling bearings, and the selection depends on the desired level of protection and the specific application requirements.

China Hot selling High Precision Small Axial Ball Bearing with Shields 15X30X10 51102 Shielded Axial Ball Bearings for Scissor Jack   with Best SalesChina Hot selling High Precision Small Axial Ball Bearing with Shields 15X30X10 51102 Shielded Axial Ball Bearings for Scissor Jack   with Best Sales
editor by CX 2024-03-27

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