From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Bearing tests for a synchromesh gearbox and assumptions made about shaft hardening and bearing loads.
| Identifier | ExFiles\Box 179\1\ img066 | |
| Date | 14th November 1931 | |
| HS.{Lord Ernest Hives - Chair} FROM DA.{Bernard Day - Chassis Design} @RY See me HS{Lord Ernest Hives - Chair} Copy to DY{F R Danby} SYNCHRO MESH GEARBOX. DA{Bernard Day - Chassis Design}1/W4: 14.11.31 X5310 Referring to the tests on the reverse we presume that all these tests for the bearings standing up are done with a casehardened shaft. It is not clear from your report whether the shaft is hardened or not. We have also assumed that all the trouble is with the forward bearing, though the rearmost is the most heavily loaded. Has there been any trouble with the rear bearing? Our assumption that it is the forward one is due to your mentioning drilling an extra oil hole. DA.{Bernard Day - Chassis Design} | ||