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).
Suggestions for the 20HP Hypoid Axle, specifically concerning the pinion thrust bearing nut and comparison to the Phantom II.
| Identifier | WestWitteringFiles\T\March1929-December1929\ Scan286 | |
| Date | 2nd December 1929 | |
| BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} Copy to SG.{Arthur F. Sidgreaves - MD} Copy to HS.{Lord Ernest Hives - Chair} DA{Bernard Day - Chassis Design}1/M2.12.29. +2066 x5350. 20HP. HYPOID AXLE. With reference to BY11/G111129., we send herewith N. scheme 2990., shewing a suggestion for providing the nut taking up the clearance of the pinion thrust bearing, without appreciably extending the overall length of the axle casing. We see that some extension is necessary due to items a.{Mr Adams} b. c. and d.{John DeLooze - Company Secretary} in your memo.,but we think that we can save on the length and type of locking device used on the nut. It appears to us that the pinion should only over-run the crown wheel by an amount proportional to that on Phantom 2., since the offset is proportional. In other words the amount of over-run should be made as small as possible. It also appears to us that some device is needed to ensure that the drain holes etc in the housing come in the right position. We have suggested that one of the studs might be special to ensure this. We will look into the question of applying this modification to Phantom 2. DA.{Bernard Day - Chassis Design} | ||