SealmasterER-24 Cylindrical OD Bearing, Setscrew Locking Collar, Light Contact Felt Seals, 1-1/2" Bore, 80 mm OD, 1-15/16" Width

I used the Sealmaster ER-24 bearing as an OEM replacement for my 70's era Cave Astrola german equatorial mount restoration project. I only had to replace one of the two original bearings. Guess what? The bearing I had to replace was a generic, non Sealmaster bearing. The other Sealmaster bearing from the 70's was still functioning like new. Go figure... ;-)