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).
Timken bearing failure in the Phantom III steering system.
| Identifier | ExFiles\Box 95\1\ scan0285 | |
| Date | 27th March 1936 | |
| To E.{Mr Elliott - Chief Engineer} c. to Hy.{Tom Haldenby - Plant Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Ev.{Ivan Evernden - coachwork} X350 HS{Lord Ernest Hives - Chair}/PJH. & JH. 27.3.36. Phantom III Steering. We have recently had a failure of a Timken bearing fitted to the roller of the steering of SS{S. Smith}-EX, which is interesting as an indication of the loading at this point. The bearing was a standard size Timken, No. A.4059, as shown on the attached sketch, fitted experimentally to obtain a quick trial and was of rather a light type for the application. The failure occured by the crushing of several rollers and resulted in a very heavy steering with considerable backlash. We do not consider that this failure need cause any concern about the standard bearings on Ph.III and 25 HP. as these are considerably more robust than the bearing which has failed. HS{Lord Ernest Hives - Chair}/PJH. | ||