[77newell]

The Timken RCSM 1 ball bearing works fine. I removed the old Oilite bearing by prying it out of the rubber holder with a small screwdriver and then prying the rubber holder out. I then polished the shaft to remove any rust. Next I pressed the new ball bearing assemblies into the bearing holder on the fan with a C-clamp aided by having sprayed the exterior of the new bearing with some WD-40. It would have made the job quicker if I had paid attention before disassembly as to how the fan was positioned side-to-side inside the housing. The rotor now spins far more freely than before.

Depending on how your fan is positioned in the compartment it may be possible to install these new bearings without removing the fan housing from the coach. It would be easier to keep things in alignment if the bearings were removed and replaced one at a time, but it would also make polishing a little more difficult so you may need to assess the extent of rust on the shaft.

It's a pretty easy job requiring minimal tools and now I won't hear the thing go "bump" in the night.