How to choose the rolling clearance of sunthai bearings?

Clearance is an important factor in the normal operation of sunthai bearings. Choosing the appropriate sunthai bearing clearance can make the load distribution between the rolling elements reasonable; can limit the axial and radial displacement of the shaft (or casing) to ensure the rotation accuracy of the shaft; make the sunthai bearing can be normal at the required temperature. Work; can reduce the vibration and noise of sunthai bearing work, it can be seen that sunthai bearing clearance has a great influence on sunt bearing life, temperature rise, vibration and noise. In the selection of sunthai bearing clearance, in addition to the working conditions of the sunthai bearing (such as load, speed, temperature, etc.) and the performance requirements of sunthai bearings (such as friction torque, vibration and noise, rotation accuracy, etc.) Should consider:
  1. The interference fit between the sunthai bearing and the shaft and housing results in a reduction in play;
  2. When the sunthai bearing is working, the temperature difference between the inner and outer rings causes the clearance to decrease;
3. The material of the shaft and the outer casing is reduced or increased due to the difference in expansion coefficient.
Experience has shown that the optimum working clearance for a ball sunthai bearing is approximately zero; a small amount of working clearance should be maintained for the optimum working condition of the roller sunthai bearing. In components that require good support rigidity (such as machine tool spindles), there may be a certain amount of preload.

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