Bearing replacement needs to follow certain principles, otherwise improper operation can easily cause damage, so today youwei bearing will talk about the three principles of lathe spindle bearing replacement:

1. Allowable speed: Under the condition of correct installation and good lubrication, it is allowed to be 0.3-0.5 times the limit speed of the bearing. Under normal circumstances, 0.2 times the limit speed is the most appropriate.

2. Allowable tilt angle: Generally, tapered roller bearings are not allowed to tilt the shaft relative to the housing hole. If tilted, it should not exceed 2'.

3. Allowable temperature: Under normal load, the lubricant has high temperature resistance and sufficient lubrication, the general machine tool spindle bearing is allowed to work at an ambient temperature of -30℃-150℃.