We are rebuilding a 350hp vertical
We are rebuilding a 350hp vertical
(OP)
We are rebuilding a 350hp vertical electric pump motor. The thrust bearing on the top end is a Kingsbury Babbitt thrust plate bearing. My question is, what finish should the machine finsish be? I was told by our machinest, Kingsbury bearings you need to surface grind the faces, and to grind them to a 64 machine finish. I have checked all my tech books and can not find any information on this subject?
Thank's in advance
Thank's in advance





RE: We are rebuilding a 350hp vertical
Ralph V
RE: We are rebuilding a 350hp vertical
Precision spindles/Hardened,ground shaft - 8-16 uin. rms
Motors,generators/Ground shaft - 16-32 uin. rms
Gen. mach., rotating, recip./Turned shaft -32-63 uin rms
Rough service machinery/Turned shaft - 63-125 uin. rms
This doesn't say anything about bearing material but coming from the Cast Bronze Institute I wouldn't be too sure about babbitt bearings.