M.B. Naegle
Diamond
- Joined
- Feb 7, 2011
- Location
- Conroe, TX USA
Machine in question is a Cincinnati 2L horizontal mill with the universal table and NMTB 50 taper spindle, SR# 9A2U1D-45 (guessing that makes it a 1945). Still runs well, but the front spindle bearings have a faint "crunch" to them when it spins. I haven't opened it up yet but I imagine some trash got into them and did some damage to the rollers or kept them from getting oil. So I'm sure they may cost an arm and a leg, but I'm looking for new front spindle bearings.
Haven't found much in my search's, but has anyone replaced the spindle bearings on one of these before? I know from the manual that they are Timken tapered roller bearings but all I have is the Cincinnati number. I'm looking for the Timken number so I can order some to have on hand when I take it appart. I know there are 2 matching bearing sets in the front. I'd also be interested in the bearing dimensions so If needed I can cross reference to other bearing makes.
The Cincinnati numbers are 57891 for the cup, and 57231 for thee cone. and I assume one of those includes the rollers themselves.
Worse case, I'll just have to pull it apart and let it sit while I source them, but I've got enough projects in that mode as it is.
Haven't found much in my search's, but has anyone replaced the spindle bearings on one of these before? I know from the manual that they are Timken tapered roller bearings but all I have is the Cincinnati number. I'm looking for the Timken number so I can order some to have on hand when I take it appart. I know there are 2 matching bearing sets in the front. I'd also be interested in the bearing dimensions so If needed I can cross reference to other bearing makes.
The Cincinnati numbers are 57891 for the cup, and 57231 for thee cone. and I assume one of those includes the rollers themselves.
Worse case, I'll just have to pull it apart and let it sit while I source them, but I've got enough projects in that mode as it is.