2015年1月12日星期一

Installation thrust bearings loose ring

Thrust bearing assembly major axial load, its wide range of applications. Although the swing bearing installation operation is relatively simple, but the actual service is still often an error occurs, the tight and loose ring ring bearing installation location that is incorrect, the results of the miniature ball bearings out of action, the journal soon be worn. Figure 1 is a clamping ring mounted on the end surface of the stationary member, i.e., the error assembling. Tight inner ring and the journal for transition fit to drive when the shaft rotates tight ring, and the end surface friction with the stationary element, axial forces in the subject (Fx), it will appear larger than the inner diameter of the friction torque with the drag torque, resulting in tight ring and the shaft with face mandatory rotation, increased wear journal.
Therefore, the thrust ball bearing installation should note the following.
(1) distinguish between the bearing ring and tighten loose ring (according to the size of the judgment bearing diameter, pore size difference O.1 ~ O.5mm).
(2) to distinguish between stationary member institutions (ie moving parts does not occur, mainly refers to the assembly).
(3) No matter what the circumstances, the loose double direction thrust ball bearing  ring should always be against the end face of the stationary member.

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