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).
The oil seals, wheel bearing grease, and air vent hole requirements for rear axles PD.312.
| Identifier | ExFiles\Box 114\1\ scan0173 | |
| Date | 9th March 1939 | |
| 1015 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}1/MH.{M. Huckerby}9.3.39. REAR AXLES PD.312. The rear hub oil seals for these axles should be chrome leather Perfect seals No. 28724 which we have handed to WSC.{W. S. Cassel} The wheel bearing and the space round it should be packed with Shell RB{R. Bowen} Grease. We will superintend the amount of grease when the first axle is assembled. An air bent hole in each tube is required. Its position has yet to be decided. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||