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).
Design alternatives and simplifications for the Bentley 50 rear axle.
| Identifier | ExFiles\Box 111\4\ scan0019 | |
| Date | 3rd February 1938 | |
| To. By & Rm.{William Robotham - Chief Engineer}....From RHC{R. H. Coverley - Production Engineer}/SB.{Mr Bull/Mr Bannister} c.c. to Bar. c.c. to Da{Bernard Day - Chassis Design}/Hdy.{William Hardy} RHC{R. H. Coverley - Production Engineer}/SB.{Mr Bull/Mr Bannister}1/MC.3.2.38. [Handwritten] 1044 [Handwritten] 802 FTH [Handwritten] Does Hives agree seen by him GM BENTLEY 50 REAR AXLE. PD.91 We note from the above scheme that alternative mountings for the pinion flange are provided, one with conventional taper and keys and the other having Barber-Colman taper splines. In view of the fact that the Barber-Colman machine is not yet available, it will be necessary to issue the conventional taper for the first experimental axles, but we consider that both schemes should be detailed in anticipation of the changeover. We also wish to put forward the following suggestions for simplifying other details of the axle :- 1. If the oil level plug sealing disc were deleted and a blind ended lightening hole bored in the plug from the small end, it would be possible to finish this piece on the automatics without further handling. 2. The projecting spigot on the die-cast inspection cover renders it impossible to glaze the joint face, and in order to avoid machining it it will be necessary to delete this spigot. Apart from gear inspection, the inspection cover bore is a process feature necessary in connection with boring operations. 3. If the steel outer shells of the oil retainers could be shaped to incorporate the half shaft guide cones, it would be possible to dispense with the loose pressings shown on the scheme. It will, of course, be necessary to consult the oil seal manufacturers regarding the price of such special seals, and to confirm that the outer pressing could be of sufficiently heavy swg. for this duty. [Handwritten signature across text] P.H.A. RHC{R. H. Coverley - Production Engineer}/S.Bannister. | ||