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).
Modifications to the Propeller Shaft Universal Joint for a Bentley.
| Identifier | ExFiles\Box 87\3\ scan0096 | |
| Date | 23th August 1937 | |
| By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. Da.{Bernard Day - Chassis Design} 237 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}15/AP.23.8.37 PROP. SHAFT UNIVERSAL JOINT - BENTLEY With regard to the indentation of the track of a joint pin GB.2311 reported by GWH.{George W. Hancock - Head Chateauroux} and the Laboratory's Report thereon, there are two points to consider:- (1) The case could be increased to .060 and the core strength regained by use of S/ZNCR as on P.III. (2) The number of rollers on the R.R. design is now such that the total peripheral clearance is .006 and on the Hardy Spicer shafts about .075" which figure is more in keeping with Hoffmann's recommendations. The length of the Hardy Spicer rollers is only .4 instead of .6 which is less likely to cause cross binding. We suggest drawings are made to try both these modifications on an Experimental car. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||