Shaft Current Induced Bearing Failure
Variable speed motors experience arc formation in the thin oil layer between rotating elements due to sudden frequency changes, leading to “FROSTING” traces and eventual “FLUTING” failure. Bearing replacement is recommended during planned stops to prevent arcing.
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SHAFT CURRENT-INDUCED BEARING FAILURE
In variable speed motors, arc formation is seen in the thin oil layer between the rotating elements due to sudden frequency changes. Due to these arcs, "FROSTING" traces, which are the initial phase of the "FLUTING" failure, occur. It does not prevent the equipment from operating in the short term, but in a planned stop, bearing replacement should be performed and arcing should be prevented.
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Category:
Vibration Case Study
Language:
English
Reading Time:
1 min
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Original Authors
Mustafa PALTA
Source:
https://www.lin...