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SERVICE
Fretting
| Damage mode | causes | Solutions |
|---|---|---|
|
● wear caused by repeated mutual minute sliding between two contact surfaces ● occurs at the contact surfaces between the raceways and the rolling elements ● produces bronze or black wear powder, so also called fretting wear corrosion |
● poor lubrication ● swing motion of low amplitude ● insufficient interference |
● use appropriate lubricant ● preload ● check the interference ● coat fitting surfaces with lubricant |
|
● inner ring of deep grove ball bearings ● micro-vibration on the inner ring ● damage caused by vibration |
● obvious micro-vibration wear on the inner ring ● damage caused by insufficient interference |
|
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