Analysis and solutions of two major problems of bearing damage
1. Peel off
Phenomenon: The running surface is peeled off, and the peeling is obviously convex and concave.
reason:
1) Improper use of excessive load
2) Bad installation
3) Poor accuracy of shaft or bearing housing
4) The clearance is too small
5) Foreign body intrusion
6) Rust occurs
7) Hardness drop caused by abnormally high temperature
measure:
1) Re-study the conditions of use
2) Reselect the bearing
3) Reconsider the clearance
4) Check the machining accuracy of the shaft and bearing box
5) Study the design around the bearing
6) Check the method at the time of installation
7) Check the lubricant and lubrication method
2. Burns
Phenomenon: The bearing is heated and discolored, and then burns and cannot rotate
reason:
1) The clearance is too small (including the small clearance of the deformed part)
2) Insufficient lubrication or improper lubricant
3) Excessive load (excessive preload)
4) Roller deflection
measure:
1) Set proper clearance (increase clearance)
2) Check the type of lubricant to ensure the injection amount
3) Check the conditions of use
4) Prevent positioning errors
5) Check the design around the bearing (including bearing heating)
6) Improve the bearing assembly method
