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).
Letter to Ransome & Marles Bearing Co. Ltd. regarding the suitability of a Duplex bearing.
| Identifier | ExFiles\Box 136\2\ scan0011 | |
| Date | 23th January 1939 | |
| 1153 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}J/MH.{M. Huckerby} 23rd. January, 1939. F.O.Hickling, Esq., Messrs. Ransome & Marles Bearing Co. Ltd., Newark, NOTTS. Dear Hickling, Many thanks for your letter. I think 400 hours on the Duplex bearing is sufficient, but we should like to look at the races. Would you send them along as evidence that such a bearing is suitable for normal light running coupled with occasional large thrust loads when in an indirect gear. Yours sincerely, | ||