Could you help me with this case?
Running speed harmonic happen at bearing motor NDE enveloping spectrum.
Is it slip of race at the mounting seat? or Rotor Looseness?
Here is the pump spec :
Water Intake Pump
Capacity : 500 m3/H
Speed : 1491 RPM
Shaft Power : 250 KW
Head : 120 M
Bearing Pump : 7370 BCBM
Bearing Motor NDE/ DE : UNKNOWN
Thank you for your help