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Hi, I am new to vibration analysis and we have motor that is emitting abnormal sound from the Motor DE. See the trend and spectrum below (ignore the lowest reading in the trend as the probe was defective at that time);

May I know if this is early bearing fault or need immediate action. We had actually re-greased and aligned last month to address the issue of the abnormal sound but is still present.

Thanks in advance.

Manolo

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