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 and modifications for a semi-floating rear axle centre casing.
| Identifier | ExFiles\Box 111\4\ scan0093 | |
| Date | 3rd December 1938 | |
| c. Rm.{William Robotham - Chief Engineer} 802 DA.{Bernard Day - Chassis Design}3/G.3.12.38. GRY.{Shadwell Grylls} B.50. REAR AXLE. FTH AH Herewith is PD.312 Rear Axle Centre Casing for the semi-floating axle, with .650 Hypoid offset. There is now a complete bridge of aluminium across the pinion nose bearing, so that diamond boring can be used. The tubes are reduced to the present Bentley 11 size, except for a rather larger and stiffer flange, and the drawings of the semi-floating axle tubes for B.V. and B.50 with a flange at each end, should be revised to suit this scheme. Of the alternative schemes for the oil seal housing on the crown wheel side, we prefer the sheet metal one to be tried first. We are assuming that a hardened steel thrust washer will not be needed between the crown wheel side of the differential casing and the Timken inner race, if the latter has its proper interference fit on the differential casing. We have not provided a steel housing for the outer race of the Timken on the R.H. side, but have made provision for it. We have eliminated the inspection cover at the rear of the casing, at Works' request. DA.{Bernard Day - Chassis Design} | ||