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 detailing issues with abnormal wear, dust, and squealing in servo motor linings.
| Identifier | ExFiles\Box 141\3\ scan0292 | |
| Date | 30th July 1934 | |
| -2- Hs{Lord Ernest Hives - Chair}/FJH{Fred J. Hardy - Chief Dev. Engineer}2O/KW.30.7.34. The abnormal wear and the tendency of dust to adhere to the metal surface is however a real trouble. We have found that the life of RAD.13 material heat treated at 700°F.{Mr Friese} is too short, it being only 3000 miles. The troubles of squealing and of dust adhering to the metal surface also apply to these linings. As you can see from the above, we are still without a satisfactory servo motor lining and if you can give us any further help we shall be very grateful. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||