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).
Issues with a Bentley Propeller Shaft, including machining errors and hardness testing.
| Identifier | ExFiles\Box 118\3\ scan0206 | |
| Date | 24th November 1937 | |
| GWH.{George W. Hancock - Head Chateauroux} BY/Mtn8/N.24.11.37. Bentley - Propeller Shaft. Referring to your memo Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}16/N.22.11.37, GB.2311 was produced in order to reduce the possibility of "Picking up" taking place between the ends of the pins, and the spherical grinding of the trunnion housings, due to: (a) machining errors. (b) distortion of the housing when subject to torque. The Brinell indent is to test the hardness of the needle roller bearing surface, but a "time" is allowed for "stoning" to remove the high spots. We are taking this matter up with the Inspection Dept. BY/Mtn. | ||