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).
Requesting a rig test on a propeller shaft centre bearing to compare grease retaining life.
| Identifier | ExFiles\Box 148\4\ scan0114 | |
| Date | 12th May 1939 | |
| 1262. To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. HPS{Horace Percy Smith - Experimental Factory Mgr}/W.Bell. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}2/MH.{M. Huckerby}12.5.39. PROPELLOR SHAFT CENTRE BEARING. We have decided to do a rig test with the remaining New Departure bearing. For this purpose will you please give this bearing to W.Bell, and also one of the R.R. units so that he can run them in series on a shaft under no load and see which has the longest grease retaining life. We should like the test done as near as possible to 4,000 r.p.m. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||