(1), keep the main functions of the frame for:

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

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

C, make bearings and the internal and external circle can be between the swing of the rolling bearing body from off;

D, bearing the bearing zone in 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 bearing and easy access to stay in 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 bearing raised edge guide maintains a often made by light material, such as light metals or phenolic resin fabric, to ensure that the smaller the inertial force.



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