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).
Recommendation to add an oil groove to propeller shaft bearing trunnions to improve wear.
| Identifier | ExFiles\Box 15\4\ Scan026 | |
| Date | 14th May 1929 | |
| To BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X7340 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}3/LG14.5.29. LUBRICATION OF PROPELLER SHAFT BEARING TRUNNION. When Day was up here on the fracturing of the rear axle casing we shewed him the wear on the propeller shaft trunnions. He recommended an oil groove in the bearings on the lines of the attached sketch. We have since run these on various tests and find that they definitely improve the wearing quantities of the bearing. We therefore recommend that these should be fitted on all S.S. propeller shafts. Incidentally they are fitted to the car which is just completing 10,000 miles in France. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||