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 Adamant Engineering Co. Ltd. discussing tolerance limits for the eccentricity of rollers.
| Identifier | ExFiles\Box 153\2\ scan0109 | |
| Date | 21th September 1936 | |
| X1300 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}9/JH. 21st September, 1936. Messrs. Adamant Engineering Co.Ltd., Dallow Road, Luton. For the attention of Commdr. Matravers. Dear Sirs, We thank you for your letter of the 12th instant, referring to the eccentricity of rollers. The limit of 0.0025 may be adequate with an overhung rockshaft, but in the case of our gear, which has straddle mounting of the shaft and is consequently more rigid, it is certain that we cannot stand an eccentricity of more than 0.0010. In view of this we wish to know whether you will agree to this being specified on the drawing and whether you can guarantee to keep within the limit. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||