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).
Increasing number of half-shaft failures on the Bentley B.III and proposed modifications.
| Identifier | ExFiles\Box 84\4\ scan0277 | |
| Date | 5th August 1937 | |
| ZB 27906 By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. Hs.{Lord Ernest Hives - Chair} c. Da.{Bernard Day - Chassis Design} c. Hdy.{William Hardy} Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}5/R.5.8.37. B.III HALF SHAFTS. In view of the increasing number of half-shaft failures on the present Bentley, we consider it essential to increase the diameter of the root of the splines on B.III. This necessitates new differential boxes and bearings. If we put up the diameter 1/8", there is no doubt that the bore of the Schatz bearing can be increased this amount. As to the other bearing, we shall have to find out the cheapest way of getting one to fit the new dimensions. We still think the design of wheel driver shown in the lower view of N. Sch.5192 should be incorporated on the present Bentley as soon as sufficient testing has been completed. On the present Bentley there have now been:- 6 failures of half shafts (5 on 3 1/2-litres) 14 " " wheel drivers (10 on 3 1/2-litres). Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||