22312 e spherical roller bearing clearance selection and factors affecting bearing life

22312 e spherical roller bearing clearance selection:

1. The tightness of the 22312 e bearing and shaft and housing hole will cause the change of the bearing clearance value. Generally, the clearance value will be reduced after the bearing is installed;

2. During the operation of the 22312 e bearing mechanism, due to the difference in heat dissipation conditions between the shaft and the housing, a temperature difference between the inner ring and the outer ring will occur, which will result in a reduction in the clearance value;

Factors affecting the life of 22312 e spherical roller bearings:

1. Temperature: The relationship between the operating temperature of the rolling bearing and the service life of the bearing is mainly reflected in the reduction of the rated dynamic load of the bearing. The dynamic bearing load is the bearing load capacity determined when the operating temperature is lower than 120°C, and the operating temperature refers to the temperature at the measuring point of the outer ring of the bearing. Therefore, if the operating temperature exceeds 120°C, the temperature at the contact point between the rolling elements and the raceway will exceed the tempering temperature of the bearing element, causing the bearing element to lose its original dimensional stability and working surface hardness.

2. Clearance: The clearance of a 22312 e bearing is an important use characteristic. The size of the clearance has a great influence on the fatigue life, vibration, noise, temperature rise and mechanical operation accuracy of the bearing. When selecting 22312 e bearing, it is necessary to determine the structure of the bearing. Size, but also to choose the bearing clearance.

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