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China Best Sales Radial Spherical Plain Bearing POS Phs Ball Joint Rod End Bearing China with Hot selling

Product Description


Materials Series
Bearing steel


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2nd step: the outside diameter of the bearing

  • A / Put your bearing on the grid as shown in the diagram.
  • B / Mark the outline of the outer ring. For more convenience, use a pencil with a fine point.
  • C / For ease of reading, do not hesitate to draw lines to the axes and then take the measurement.


3rd step: the thickness of the bearing

  • A / In the same way as for the outer diameter and the bore, place your bearing on the edge on the grid as shown in the diagram.
  • B / Draw the outer contour.
  • C / For ease of reading, do not hesitate to draw lines to the axes and then take the measurement.


Conclusion :

You now have 3 measuring elements that will allow you to identify your bearing: the inside diameter (or bore), the outside diameter, and the thickness.

You can postpone these measurements in our bearing search tool on our website


You search, we find !

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Rolling Element: Single Row
Structure: Rod End
Material: Bearing Steel and Stainless Steel
Load Direction: Thrust Spherical Plain Bearing
Add Lubricant: Non Self-lubricating
Outer Structure: Normal
US$ 1/Piece
1 Piece(Min.Order)

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radial bearing

Can you explain the primary functions of radial bearings in machinery and equipment?

Radial bearings play several primary functions in machinery and equipment. They are essential components that provide support, facilitate smooth rotation, and minimize friction in various mechanical systems. Here is a detailed explanation of the primary functions of radial bearings:

1. Load Support:

The primary function of radial bearings is to support loads in machinery and equipment. Radial bearings are designed to withstand radial loads, which are forces that act perpendicular to the shaft’s axis. These loads can include the weight of rotating shafts, belts, pulleys, or other components that exert a radial force. Radial bearings distribute the load evenly across the rolling elements and transmit it to the stationary outer ring. By supporting and distributing the load, radial bearings prevent excessive stress on the rotating components and ensure smooth operation.

2. Facilitating Smooth Rotation:

Radial bearings are crucial for facilitating smooth rotation in machinery and equipment. The rolling elements, such as balls or rollers, in a radial bearing roll between the inner and outer rings. This rolling action reduces friction and enables smooth motion of the rotating shaft or assembly. The low friction provided by radial bearings minimizes energy loss and allows machinery to operate efficiently. By enabling smooth rotation, radial bearings contribute to the overall performance and functionality of the machinery or equipment.

3. Reducing Friction and Power Loss:

Friction is an inherent challenge in mechanical systems that can lead to power loss, heat generation, and premature wear. Radial bearings are designed to minimize friction between the rolling elements and raceways. The rolling motion of the elements reduces sliding friction, resulting in lower power loss and improved energy efficiency. By reducing friction, radial bearings help optimize the performance of machinery and equipment, allowing them to operate with increased reliability and efficiency.

4. Absorbing and Damping Vibrations:

Machinery and equipment can experience vibrations due to various factors, such as imbalances, misalignments, or external forces. Radial bearings play a role in absorbing and damping vibrations within the system. The rolling elements and the bearing structure act as a buffer, absorbing and dissipating vibrations generated during operation. By absorbing vibrations, radial bearings reduce the impact on other components, minimize the risk of damage or excessive wear, and contribute to a smoother and quieter operation of the machinery.

5. Supporting Axial Loads (Limited):

Although radial bearings are primarily designed to support radial loads, they can also withstand limited axial (thrust) loads. Axial loads are forces that act parallel to the shaft’s axis, such as thrust or pushing forces. While radial bearings are not specifically optimized for axial loads like dedicated thrust bearings, they can handle moderate axial loads that may be present in certain applications. However, it is important to consider the axial load capacity of the specific radial bearing and ensure that the applied axial load remains within its limits.

6. Enabling Compact and Space-Efficient Designs:

Radial bearings offer the advantage of enabling compact and space-efficient designs in machinery and equipment. Their ability to support loads and facilitate smooth rotation allows engineers to design systems with smaller dimensions and tighter tolerances. By using radial bearings, machinery and equipment can be more compact, lightweight, and efficient without compromising their performance or load-carrying capabilities. This space-saving feature is particularly valuable in applications where space constraints or weight considerations are critical factors.

7. Providing Mechanical Stability:

Radial bearings contribute to the mechanical stability of machinery and equipment. They help maintain the proper alignment of rotating components, preventing excessive vibration, misalignment, or skewing. The precise fit and alignment of the bearing components ensure that the rotating shaft or assembly operates within the desired tolerances. This mechanical stability provided by radial bearings is crucial for the overall performance, reliability, and longevity of the machinery or equipment.

In summary, the primary functions of radial bearings in machinery and equipment include load support, facilitating smooth rotation, reducing friction and power loss, absorbing and damping vibrations, supporting limited axial loads, enabling compact designs, and providing mechanical stability. Radial bearings play a critical role in optimizing the performance, reliability, and efficiency of various mechanical systems.

radial bearing

What are the potential challenges or limitations of using radial bearings in specific applications?

Radial bearings, like any other mechanical component, have certain challenges and limitations that should be considered when selecting and using them in specific applications. Understanding these potential limitations is crucial for ensuring the optimal performance and reliability of radial bearings. Here’s a detailed explanation of the potential challenges or limitations of using radial bearings:

1. Load Capacity:

Radial bearings have a specific load capacity, which is determined by their design, size, and material. Exceeding the load capacity can lead to premature wear, excessive heat generation, and ultimately bearing failure. It is important to accurately calculate and apply the appropriate load conditions to ensure that the radial bearing can handle the expected loads in the specific application. In high-load applications, alternative bearing types, such as thrust bearings or angular contact bearings, may be more suitable.

2. Speed Limitations:

Radial bearings have speed limitations that are determined by factors such as bearing size, design, lubrication, and operating conditions. Operating at speeds beyond the recommended limits can result in increased friction, heat generation, and potential bearing failure. It is important to consider the rotational speed requirements of the application and select bearings that can operate within the specified speed range. In high-speed applications, specialized high-speed bearings or alternative bearing types may be necessary.

3. Temperature Constraints:

The operating temperature range of radial bearings should be taken into account when selecting them for specific applications. Excessive temperatures can cause changes in bearing dimensions, material degradation, lubrication breakdown, and reduced bearing life. High-temperature applications may require bearings with heat-resistant materials or additional cooling measures, while low-temperature applications may require special lubricants that can withstand cold environments.

4. Environmental Factors:

Radial bearings can be affected by environmental factors such as moisture, dust, chemicals, and corrosive substances. These factors can accelerate wear, corrosion, and contamination, leading to reduced bearing performance and premature failure. It is important to assess the operating environment and select appropriate sealing solutions, protective coatings, or bearing materials that can withstand the specific environmental conditions.

5. Misalignment:

Radial bearings require proper alignment to function optimally. Misalignment can result in increased stresses, uneven load distribution, and accelerated wear. It is crucial to ensure accurate alignment during installation and consider the potential misalignment factors in the application design. In some cases, self-aligning bearings or specialized bearing arrangements may be necessary to accommodate misalignment.

6. Maintenance Requirements:

Radial bearings require regular maintenance to ensure their optimal performance and longevity. This includes proper lubrication, periodic inspections, and timely replacement of worn or damaged components. In applications where maintenance is challenging or access is limited, alternative bearing types or maintenance-free bearing solutions may be more suitable.

7. Cost Considerations:

The cost of radial bearings can vary depending on factors such as bearing type, size, quality, and manufacturer. In some cases, specialized bearings designed for specific applications may be more expensive. It is important to balance the performance requirements with the available budget to select bearings that provide the desired level of performance and reliability at a reasonable cost.

8. Application-Specific Considerations:

Each application may have unique requirements, challenges, or limitations that should be taken into account when selecting radial bearings. Factors such as vibration, shock loads, space constraints, noise tolerance, and regulatory compliance may influence the choice of bearings. It is important to consider these application-specific factors and consult with bearing manufacturers or industry experts to ensure the selected bearings can meet the specific requirements.

By considering these potential challenges and limitations, it is possible to make informed decisions regarding the selection, implementation, and maintenance of radial bearings in specific applications. Proper assessment of load capacity, speed limitations, temperature constraints, environmental factors, alignment, maintenance requirements, cost considerations, and application-specific factors can help optimize the performance and reliability of radial bearings in various industrial and mechanical systems.

radial bearing

Can you describe the various types of seals and shields used with radial bearings for contamination prevention?

Seals and shields are commonly used with radial bearings to prevent contamination and protect the bearing internals from external particles, moisture, and other contaminants. They help maintain the integrity of the lubricant and extend the service life of the bearing. Here’s a detailed description of the various types of seals and shields used with radial bearings:

1. Contact Seals:

Contact seals, also known as lip seals or radial lip seals, are designed to make direct contact with the inner ring of the bearing. They consist of a flexible sealing lip that forms a barrier between the inner and outer ring of the bearing. Contact seals effectively prevent the entry of contaminants into the bearing by creating a tight seal. They are commonly made of rubber or elastomeric materials and provide effective sealing against solid particles, liquids, and gases. Contact seals offer good contamination prevention but may generate higher friction and heat compared to non-contact seals.

2. Non-Contact Seals:

Non-contact seals, also known as labyrinth seals or gap seals, do not make direct contact with the inner ring of the bearing. Instead, they rely on a series of barriers or labyrinth-like structures to create a tortuous path that prevents the entry of contaminants. Non-contact seals provide effective protection against solid particles, such as dust and dirt, while allowing for minimal friction and heat generation. They are commonly made of metal or plastic and are suitable for high-speed applications where reduced friction is critical.

3. Shielded Bearings:

Shielded bearings, also known as metal shields or ZZ bearings, are equipped with metallic shields that cover the outer surface of the bearing. These shields are usually made of steel and provide a physical barrier against contaminants. Shielded bearings are designed to prevent the entry of larger particles, such as dirt and debris, while allowing for the circulation of lubricating grease within the bearing. However, they do not provide a complete seal and may not be suitable for applications where protection against moisture or fine particles is required.

4. Rubber Seals:

Rubber seals, also known as rubber contact seals or RS bearings, are similar to contact seals but are made entirely of rubber or elastomeric materials. They provide effective sealing against contaminants, including solid particles, liquids, and gases. Rubber seals offer good contamination prevention and are more flexible than other sealing options, allowing for better adaptability to varying operating conditions. They are commonly used in applications where protection against moisture, dust, and other fine particles is essential.

5. Felt Seals:

Felt seals are made of compressed or woven felt material and are used primarily in low-speed applications. They provide a barrier against larger particles and help retain lubricating oil or grease within the bearing. Felt seals are relatively simple and cost-effective solutions for contamination prevention. However, they may not offer the same level of protection as other sealing options and may require regular lubrication to maintain their effectiveness.

6. Combination Seals:

Combination seals utilize a combination of different sealing mechanisms to provide enhanced contamination prevention. These seals often incorporate both contact and non-contact elements to create an effective barrier against various contaminants. Combination seals are designed to address specific application requirements, providing a balance between sealing effectiveness, friction, heat generation, and other performance factors.

7. Additional Features:

Some seals and shields may incorporate additional features to enhance contamination prevention. For example, seals may include dust lips or auxiliary lips to provide extra protection against fine particles. Shields may have gap fillers or flingers to deflect contaminants away from the bearing. These additional features help improve the sealing effectiveness and contribute to extended bearing life.

When selecting seals and shields for radial bearings, it is essential to consider the specific application requirements, operating conditions, and the level of contamination protection needed. Manufacturers typically provide guidelines and recommendations regarding the appropriate sealing options for their bearings to ensure optimal performance and reliability.

China Best Sales Radial Spherical Plain Bearing POS Phs Ball Joint Rod End Bearing China   with Hot sellingChina Best Sales Radial Spherical Plain Bearing POS Phs Ball Joint Rod End Bearing China   with Hot selling
editor by CX 2024-04-15