How to store precision bearings?
How to store precision bearings?
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The causes and the measures of non-standard bearing damage
by：Waxing
2020-11-16
Non-standard bearing damage causes and measures of source: bearing | last updated: - 2020
07 -
07 non-standard bearing cannot be directly observed in the operation, but through the noise, vibration, temperature, lubricant, etc can be learned about bearing abnormal condition.
The representative of the bearing damage cases;
There are crack, crack defect part of the gap.
The reasons are as follows: the impact of the host load is too large, spindle and bearing with large amount of interference;
Also have larger stripping friction causes the crack;
When installation precision is bad;
Improper use,
With copper hammer, card into the big foreign body)
Friction and crack.
Action: check the conditions of use, at the same time, set the appropriate interference and check material, improve the installation and use, check the lubricant to prevent friction crack.
2, the raceway surface of the metal strip surface stripping operation.
After stripping is obviously concave and convex shape.
Bearing roller and reasons both inner and outer ring raceway surface under periodic pulse load, resulting in a cycle change of contact stress.
When stress cycle number reach the set value, the rolling element bearings, their work within or on the surface will produce fatigue peeling off.
If the bearing load is too big, can make the fatigue.
In addition, the bearing installation is not straight, shaft bending, also can produce the raceway stripping phenomenon.
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