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).
Suggestion to modify the Phantom III back axle shafts by increasing bearing surface diameter for additional clearance.
| Identifier | ExFiles\Box 92\5\ scan0123 | |
| Date | 14th May 1937 | |
| BF. c. Rm.{William Robotham - Chief Engineer} Ws. Da.{Bernard Day - Chassis Design} 302 P.III Back Axle. E/HDY.{William Hardy}1/HP.14.5.37. With reference to the stiffer axle shafts as shewn by N.Sch.4982, Ws. has asked for more clearance in the differential casing for reaming the bushes for the axle shafts after they have been pressed into position. Our suggestion to meet this request is that the bearing surfaces on the shaft are made 1.500 dia. instead of 1.490, and that elsewhere the shaft is made 1.490" excepting where reduced at the splined ends, which remain unaltered. E/HDY.{William Hardy} | ||