What aspects does the structural design of the bearing ring include

The structural design of the bearing ring is one of the keys to bearing performance and life. Reasonable structural design can improve the rigidity, stability and load-carrying capacity of the bearing, reduce friction and heat generation, thereby improving the overall performance.

Basic structure of bearing ring:

The basic structure of the bearing ring includes inner ring, outer ring, rolling elements and cage. The inner ring and outer ring are connected through rolling elements (balls or rollers) to form a rotating system. The cage is used to maintain the relative position of the rolling elements to ensure that they are evenly distributed and can roll smoothly.

Selection of rolling elements:

The selection of rolling elements is directly related to the performance of the bearing ring. The rolling elements can be balls, rollers or needles. In some high-load, high-speed and high-precision applications, rollers or needles are used because they can withstand larger loads than balls and have better stability under high-speed conditions.

Materials and heat treatment of inner and outer rings:

The inner and outer rings of the bearing ring are usually made of high-strength, high-hardness materials, such as high-grade steel or special alloys. Heat treatment processes, such as quenching and tempering, can improve the mechanical properties of materials and improve fatigue and wear resistance.

Design of preload and clearance:

Proper bearing preload can improve its rigidity, reduce vibration, and help improve bearing stability. The design of the clearance needs to be reasonable. It should not be too small to cause excessive friction, nor too large to cause the bearing to be unstable during high-speed operation.

Cage selection and design:

The main function of the cage is to maintain the relative position of the rolling elements to ensure that they are evenly distributed and can roll smoothly. The design of the cage should take into account the centrifugal force and friction during high-speed rotation, and use appropriate shapes and materials to ensure stability.

Sealing and dustproof design:

Bearing rings usually need to be sealed and dust-proof, especially in harsh working environments. The use of effective sealing structures and materials, such as rubber sealing rings, can prevent external particles, moisture and contaminants from entering the bearing ring and protect the internal rolling elements and lubricating oil.

Geometry of inner and outer rings:

The geometry of the inner and outer rings is directly related to the load distribution and rigidity of the bearing. Reasonable geometric design helps to improve the load carrying capacity and rigidity of the bearing and ensures that no abnormal deformation occurs when bearing load.