Recent content by LummyKem

@MachEng, Thanks once again for your valuable contribution.

@spciesla, Many thanks for your input. Per your question, the machine was operated below it's critical speed. Will keep to your suggestions posted by you and others on the subject matter. But if I may ask you - what do you expect to see in your vibration spectrum & waveform when there is an...

MachEng, Thanks for your contribution. What an insightful and wonderful post.

electricpete, Yes there was an increase in bearing temperature to shutdown level which automatically shuts down the equipment. All attempt to put the equipment back online prove abortive as it continue to shutdown on high bearing vibration and temperature.

electricpete, Thanks for your response. On pulling out the bearing today, it was found out that the bearing was damaged as a result of wipe. This confirms the theory that "higher vertical vibration amplitude compared with horizontal amplitude with pronouced 1x TS in the spectrum" is a good...

My spectrum shows dominant 1x TS(turning speed) and 2x TS frequencies on both radial and axial vibration data; though with the highest amplitude recorded in the radial (i.e horizontal & vertical)direction. I need to distinguish these possible problems: wipped bearing, excessive bearing clearance...

I read that 2-channel orbit plotting analysis by connecting the vibration analyzer to the bearing using X-Y probes on the control panel can be of good assistant in this regards.

FeX32, Thanks for your response as regards oil whirl and oil whip, but what are the indications of bad/damaged sleeve bearing by looking through it's vibration spectrum and time waveform. For instance 0.41x to 0.45x TS (Turning Speed) indicates oil whirl/whip as the case may be. So what are the...

Thanks FeX32 for your response. I actually want informations on Vibration Characteristics / Signatures (waveform & spectral) of faulty SLEEVE BEARING and not roller type bearing which you tried to explain in your post. Hope you have info on Sleeve Bearing or Babbit Bearing?

Hello All, Can someone help with informations of Vibration Characteristics / Signatures of bad sleeve bearing such as wiped bearing, e.t.c. Thanks for your contributions