o-ordination of precision bearings

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After installation in order to ensure the bearing does not produce a large deformation, we must do:
(1) axis of the bore roundness and verticality of the shoulder block in acc ordance with the corresponding precision of the bearing requirements.
(2) it is necessary to accurately calculate the rotating ring with the amount of interference, but also the accurate calculation of the appropriate

co-ordination of the fixed ring.
The rotating ring blanch the amount of interference to the extent possible, should be made smaller. Ensure the impact of thermal expansion of the

operating temperature, and the maximum speed the centrifugal force of the impact of creeping or sliding so as not to cause a tight fit to the

surface. Fixed ferrule according to load size and bearing size, select a very small clearance fit or interference fit is too loose or too tight are

not conducive to maintaining the original precise shape.
(3) bearings, such as high-speed conditions, operation, and a higher operating temperature, special attention should be rotating ring with not too

loose to prevent the em ergence of the eccentric, and a fixed ring with the non-emergence of the gap to prevent the ferrule in deformation under load

and excitation vibration.
(4) take a small interference with the fixed circle condition is to match the surface of both sides have high shape accuracy and smaller roughness,

or cause installation difficulties removing it more difficult In addition, you also need to consider the spindle thermal elongation .
(5) use pairs of duplex angular contact ball bearing spindle, most of the load is lighter, its amount of interference with such large internal axial

preload will be significantly larger, resulting in adverse effects. Spindle double row cylindrical roller bearings and tapered roller bearing

spindle, the load is relatively large, so with the earnings are also relatively large.