20-02-2019, 10:33 PM
Quote from David Stepney:
"Having decided to tackle the rumbling rear main bearing on my box saloon that has been getting increasingly noisy since I bought the car in October, I ordered a new bearing from The Seven Workshop. To be fair, Jamie did tell me that he was currently unable to get the RHP bearings and offered me a Hoffman bearing instead. Knowing that Hoffman are a well known brand ordered one, which arrived today. When i unpacked it, although it says it is an MRJ1 1/4" bearing, it is uncaged and, of course, fell into it's component parts as I examined it. The old bearing is a Ransome and Marles caged bearing."
Whilst an original R&M was designated an MRJ1 1/4" an original (pre 1969) Hoffmann would have been labeled as an RMS12 and the equivalent SKF 402318. The bearing dimensions being 1 1/4" x 3 1/8" x 7/8" - this information from a 1950 R&M / Hoffmann / SKF catalogue.
"Having decided to tackle the rumbling rear main bearing on my box saloon that has been getting increasingly noisy since I bought the car in October, I ordered a new bearing from The Seven Workshop. To be fair, Jamie did tell me that he was currently unable to get the RHP bearings and offered me a Hoffman bearing instead. Knowing that Hoffman are a well known brand ordered one, which arrived today. When i unpacked it, although it says it is an MRJ1 1/4" bearing, it is uncaged and, of course, fell into it's component parts as I examined it. The old bearing is a Ransome and Marles caged bearing."
Whilst an original R&M was designated an MRJ1 1/4" an original (pre 1969) Hoffmann would have been labeled as an RMS12 and the equivalent SKF 402318. The bearing dimensions being 1 1/4" x 3 1/8" x 7/8" - this information from a 1950 R&M / Hoffmann / SKF catalogue.