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).
Bentley rear axle deflections under various loads and bearing configurations.
| Identifier | ExFiles\Box 84\4\ scan0240 | |
| Date | 21th June 1937 | |
| Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 202 Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}3/R.21.6.37. BENTLEY REAR AXLE DEFLECTIONS. (a) Deflection under various loads at some thread in worst direction. (1) New bearings correctly assembled. (2) Reduce by .001 stages thickness of nip washer until .002 slack. (3) Fit nip washer .001 larger than original and increase preload of bearing by .001, grinding this off face of thrust half. (4) Increase slack in roller bearing by .001. (5) Replace rocker bearing by tight plain bush. (6) (1) With R.{Sir Henry Royce} & M.{Mr Moon / Mr Moore} bearing replaced by 20/25 bearing G.54269. (b) Deflection of crown wheel. (1) Standard conditions. (2) Roller bearing replaced by angular contact bearing with .003 pre load. (c) Repeat (a) (1) with cast iron centre box. (d) (c) with stiffened bridge. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||