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How to Select the Material of Bearing Cage?

2018-08-28

Cage is an important part of the bearing, the following simple means to tell you  the choice of ultra-thin wall bearing cage.

The role of thin-walled bearing cage has the following three points:

1, Guide and drive the rolling body in the correct raceway rolling.

2, The cage will be separated from the rolling body, are distributed in the circumference of the raceway to prevent the rolling of the collision with each other and friction.

3, In the separate bearing, the rolling body and a ring together to prevent the rolling off.

The current cross-section of thin-walled bearing cage material has two options: brass cage and nylon cage.

(A) the characteristics of brass cage:

1, Brass cage type: stamping and solid two, stamping only applies to small and medium.

2, The material: brass plate, brass castings and brass forgings; brass with high tensile strength, mechanical strength and steel stamping cage rather, but the density is relatively small, high speed limit;

3, The advantages of performance: not affected by the lubricant, including synthetic oil and fat;

4, The use of restrictions: brass cage can not be used for more than 300 ℃ occasions, not suitable for ammonia (such as cooling)

Because the ammonia will cause the brass seasonally broken;

5, The working temperature: working temperature is below 300 ℃.

(B) The characteristics of nylon cage:

Nylon cage is called plastic, is the replacement of copper cage, iron cage of a new generation of products, relative to metal cage, it has great advantages.

1, Nylon cage light weight, making the bearing more flexible, if used for electrical or power consumption products, for energy conservation has a great effect.

2, It is low noise, is the first choice for quiet bearings, especially now on the noise requirements of a large electrical products a great impact.

3, It can effectively extend the life of the bearing, less metal cage and steel ball friction, to extend the life of the bearing, nylon cage play a big role.

At present the use of stainless steel thin-walled bearings, nylon cage for the best choice. If the relevant section of thin-walled bearing cage material selection issues, consult the field of Nile precision bearing manufacturers.