helo sir, can any one solve my problem..
we have a problem on [sop(vacuum pump)],(3phase.sq. Cage.Ind motor.)kw=0.37, hp=0.50,rpm =1860.few days back we got a high vibration readings in motor.
Motor -(NDE) 5.2X (mm/sec) 5.3Y (mm/sec)
Motor -(DE) 3.2 3.0
PUMP -(DE) 3.1 2.7
PUMP -(NDE) 3.1 3.0

we worked in bearing... & get replaced bearing on motor nde. & did over oilng in pump.but the vibration is still in higher side on Horizontal in both motor & pump.
Motor -(NDE) 8.8X (mm/sec) 4.2Y (mm/sec)
Motor -(DE) 8.7 3.5
PUMP -(DE) 7.0 3.9
PUMP -(NDE) 7.9 3.9
frequency spectrum: showing in 1x & time amplitude: shows resonance.
im suspecting its base looseness or bearing fault. but we go through this 2. still vibration is on higher side.
guys pls help me to solve this problem.
vinod
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HACKATHON in association with IMC-2019

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