There are many methods of the rolling bearing axial tighten, inner circle is the commonly used method are:

A) with  nut and dynamic gasket tighten, mainly for the bearing high speed, bear the larger axial force;

B) with tight set bushings, check dynamic washer and round nut tighten, used to the optical axis, axial force and speed are not big, inner ring for cone bearing hole. The other end of the inner circle is often in shaft shoulder as positioning surface. In order to facilitate bearing down, and the shaft shoulder height should be below the bearing the thickness of the inner circle;

C) with shaft with elastic draw circles of the trench embedded in the shaft, mainly for the deep groove ball bearings, when the axial force and speed is not high.

D) with screws of the shaft block for fastening, used in the shaft cut threads are difficult. So in high speed can tighten bear large axial force;

Outer shaft to tighten the commonly used method are:

A) with threaded fastening ring, used in bearing high speed, axial load, and not suitable for the application of bearing the cover tighten

B) with stop ring embedded bearing outer ring stop moving slot tighten, used for the dynamic slot with deep groove ball bearings, when shell a convex shoulder and the inconvenience for cutting fraction structure;

C) with bearing cover tighten, used for high speed and large axial force of heart, when to thrust and thrust bearing to the heart

 
D) with embedded within the hole groove enclosure with elastic block circle tighten, used to heart bearings, when the axial force and the need to reduce the bearing is the size of the device;
 



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