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Recent content by vib1

  1. vib1

    Gear Assembly Phase Frequency????

    Determination of number of assembly phases (Na): Determine prime factors of number of gear teeth, Ng F1xF2xF3xF4 = Ng Determine prime factors of number of pinion teeth, Np F1xF2xF3xF4 = Np Calc. product of prime factors common to gear and pinion Na = product of...
  2. vib1

    Vibration velocity limits?

    The big question is whether this is shaft vibration or bearing cap. Most OEM publish limits of shaft vibration. If it is shaft, the allowable is much higher (3-5X cap). Most OEM set alarms at about 50 micrometers 0-peak and trip at 75 micrometers. For 2-pole generator(3600 rpm) producing 1X...
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