Reply to "vibration of a motor"

ariesMember

I have similar experience with a 938 KW new motor (3000 rpm) driving a centrifugal compressor. Motor Vibration (at brg housing) as well as bearing temp (bath lubricated Journal brgs) increases over time. It starts with 1.5 mm/s at Motor drive end vertical & reaches 4 mm/s in 10 hrs, similarly next higher level is non drive end horizontal (from 0.9 to 2.5 mm/s). Is it a case of thermal bow??? Spectrum shows mainly 1X. Pl share your opinion.

2/7/087:30 AM

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