(1)Bearing retainer main function:

A, separation each scroll body, make the work of the friction and heat minimum;

B, keep the distance between the roller equal, make an average load distribution;

C, that can separate NSK bearings and the internal and external circle each other the bearing can be swinging rolling body not off;

D,in non -load bearing area guide roller

(2), rolling bearing keep rack can be subdivided into stamping type and entity type:

A, stamping maintains a: common steel manufacturing, sometimes also used COINS. This maintains a relative to the metal entity maintains a's advantage is light in weight. Stamping maintains a occupy bearing inside and outside the space between the small circle, lubricating oil easy access to stay SKF bearing maintains a inside. According to the code principle, stamping maintains a only in no will it as a standard when it is written into the structure of the code.

B, entity maintains a: by a metal, phenolic resin fabric and plastic. Bearing code that indicates the material.

Metal entity maintains a used to keep the strength of the frame require high temperature and the workplace.

 
When need raised edge guide, also can use the entity keep frame. The high-speed FAG raised edge guide bearing maintains a often made of light materials, such as light metals or phenolic resin fabric, to ensure that the smaller the inertial force.



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