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).
Proposal to replace the Phantom III steering column cam roller bearings with ball bearings due to repeated failures.
| Identifier | ExFiles\Box 95\1\ scan0510 | |
| Date | 12th December 1938 | |
| 350 DV/MG c. Rm.{William Robotham - Chief Engineer} DA.{Bernard Day - Chassis Design}5/G.12.12.38. F.J.HARDY PHANTOM III STEERING COLUMN. CAM ROLLER. FJH{Fred J. Hardy - Chief Dev. Engineer} In view of the repeated failure of the roller bearings in the existing P.III cam roller, we wish to provide a substitute with ball bearings, which can be used as a replacement without altering either of the two existing types of rocker shaft, F.88341 and F.89716 and used with original wheel movements. With the standardisation of Wraith wheel movements, a ball bearing cam roller automatically comes in. PD.330 shews the design. A new bolt is required to suit rocker shaft F.88341, otherwise the bearing is completely interchangeable with the existing roller bearing. The design of the bearing, adjustment in rocker shaft etc. follows latest Wraith practice. Please detail and put in hand experimentally. DA.{Bernard Day - Chassis Design} | ||