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  • Users: JWT
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  1. JWT

    Balancing Rotor on Small Motor

    The entire motor-rotor assembly we are balancing is only 3.5 cm in length, so I suspect we are not super critical. FYI the "rotor" part of this assembly is a split cylinder with each half mounted to the end of the motor shaft. I found a good thread in the Mechanical Engineers Forum...
  2. JWT

    Balancing Rotor on Small Motor

    How is the "First Critical Speed" determined?
  3. JWT

    Balancing Rotor on Small Motor

    I have an old manufacturer's procedure for balancing the rotor on a small motor used in a gyroscope application. The motor is 400Hz, 3 phase and normally runs at 24,000 rpm. However in the balancing procedures the rotor is balanced at 10,800 rpm by setting the motor input frequency to 180Hz...

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