High gearbox housing vibration

Hi,

GB details: Double stage single helical for cooling water pump application.

Power:  1450kW; Input/Output speed: 5900/590 (10:1 ratio)

Recently I was shared a site vibration data of a high speed gearbox , The housing vibrations measurement details are attached;

  • From the spectrum data , the dominant frequency  is at 53,000 cpm which is close to 9X of Input pinion shaft rpm.
  • The vibrations are found dominant at pinion shaft non drive end (28 mm/sec)

Kindly share your views.

 

Santosh S

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