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Sudden change in vibration 4 Responses

Hi,

I am facing a new problem with a closed coupled 5.5 kw motor.The vibration was good till a month before around 3.2 mm/sec. The motor brgs was changed last month and the vibration has abruptly increase to 45.5mm/sec in vertical and around 50 mm/sec in axial and 22.5 mm/sec in horizontal.
Can any body tell the reason for sudden change of vibration which was running nice previously.In the spectrum 1x is dominant is horizontal and vertical and 2x in axial direction.

Sudden change in vibration

Hi,

I am facing a new problem with a closed coupled 5.5 kw motor.The vibration was good till a month before around 3.2 mm/sec. The motor brgs was changed last month and the vibration has abruptly increase to 45.5mm/sec in vertical and around 50 mm/sec in axial and 22.5 mm/sec in horizontal.
Can any body tell the reason for sudden change of vibration which was running nice previously.In the spectrum 1x is dominant is horizontal and vertical and 2x in axial direction.
This survey was originally posted to a topic here.
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