Clearance is an important factor Xinkaite rolling bearing can work normally divided into axial clearance and radial clearance. Select the appropriate clearance enables load bearing rolling elements between Xinkaite rational distribution; limit the shaft (or shell) of the axial and radial displacement, to ensure the accuracy of the rotating shaft; make Xinkaite bearing at a predetermined temperature normal work; reduce vibration and noise, helping improve Xinkaite bearing life. therefore. Xinkaite in the selection of the bearing, you must select the appropriate Xinkaite bearing clearance.
When choosing Xinkaite bearing clearance, should consider the following aspects:
1, Xinkaite bearing operating conditions such as load, temperature, speed;
2, Xinkaite bearing on performance requirements (precision rotation, friction torque, vibration, noise);
3, Xinkaite bearing and the shaft and housing bore when the interference fit cause Xinkaite bearing clearance is reduced;
4, Xinkaite bearing work, the temperature difference between inner and outer rings lead to Xinkaite bearing clearance reduction;
5, because the coefficient of expansion of different shaft and housing materials, resulting in Xinkaite bearing clearance decreases or increases.
6, according to experience, ball bearings Xinkaite optimum clearance work is close to zero; Xinkaite roller bearings should be maintained with a small amount of clearance work. Requiring good rigidity of the support member, Xinkaite allow a certain value bearing preload. Here in particular it pointed out that the so-called operating clearance refers Xinkaite bearings under actual operating conditions for clearance. There is also a play called original clearance refers clearance before Xinkaite bearing is not installed. Original clearance than the installation clearance. Our selection of clearance is mainly select the appropriate operational clearance.
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