How to choose a reasonable clearance sunthai bearing clearance?

The clearance is an important factor in whether sunthai bearings can work properly. Select the appropriate sunthai bearing clearance, can make the load distribution between the rolling elements reasonable; can limit the shaft (or shell) axial and radial displacement to ensure the rotation accuracy of the shaft; so that sunthai bearings at the required temperature can be normal Work; can reduce the sunthai bearing work when the vibration and noise, etc., it can be seen, sunthai bearing clearance on the sunthai bearing life, temperature rise, vibration and noise have a great impact. In addition to sunthai bearing clearance, in addition to sunthai bearing operating conditions (such as load, speed, temperature, etc.) and sunthai bearing performance requirements (such as friction torque, vibration and noise, rotation accuracy, etc.), but also Should consider:
1. sunthai bearing with the shaft and the shell of the interference with the gap caused by reduced;
2. sunthai bearing work, the inner and outer rings of the temperature difference caused by the clearance to reduce;
3. Shaft and shell manufacturing materials due to different expansion coefficient caused by the clearance to reduce or increase.
Experience has shown that the most suitable working clearance for the ball sunthai bearing is approximately zero; for the most suitable working condition of the roller sunthai bearing a small amount of working clearance should be maintained. It is also possible to have a certain amount of preload in parts requiring good rigidity (eg machine spindle).