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Recent content by Irajak

  1. Irajak

    Increasing Vibration Peaks at 21,600 CPM

    Randy, The culprit may be resonace of the stator. The motor's stiffness is changing with operation and the 6 times line frequency and stator resonant frequency may be getting closer to each other. Check vibration of motor housing between bearings. If amplitude is higher, I would suspect resonance.
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