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Recent content by CCJA

  1. CCJA

    Axial 2xLF problem in vertical induction motor

    I’m having a problem with what appears to be a 2xLF axial vibration of the motor shaft in a vertical, 1 hp, 1800 rpm (single phase, 4 pole) induction motor with upper and lower sleeve bearings. The same motor can be used at either 120v, 60 Hz or 100 v, 50 Hz. In application, there is a...

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