FAG works bearing clearance is an important factor. Select suitable of bearing tour gap, can makes load in scroll body Zhijian distribution reasonable; can limit axis (or shell) of axis to and radial displacement to guarantee axis of rotating precision; makes FAG bearings in requirements of temperature Xia can normal work; can reduced FAG bearing work Shi of vibration and noise,, thus, bearing tour gap on bearing life, and temperature rose, and vibration and noise has is large of effects. When you are selecting FAG bearing clearance, in addition to bearing's working conditions should be considered (such as load, speed, temperature, etc) and FAG bearings using performance requirements (such as friction, vibration and noise, running accuracy, and so on), you should consider the following:
1, FAG bearings and shafts and shell's interference led to the reduction of clearance;
2 when working, FAG bearings, inner and outer cylinder clearance reduction caused by the temperature difference;
3, shaft and casing material clearance decreases or increases due to different coefficients of expansion.
Experience has shown that FAG bearing the most appropriate operational clearance approximation to zero; for bearing the most suitable working conditions a small operational clearance should be maintained.


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