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).
Use of austenitic steel for a non-interference fit gudgeon pin.
| Identifier | ExFiles\Box 148\3\ scan0077 | |
| Date | 14th June 1933 | |
| X-190. To Hl. from E.{Mr Elliott - Chief Engineer} c. Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} Ry. E.4/HP.14.6.33. Non-Interference Fit Gudgeon Pin. This confirms that you are looking into the question of a suitable austenitic steel for use as a gudgeon pin. We are hoping that you will be able to get suitable surface hardness since the part to be treated is not very large. Our object in following this up is to avoid the interference fit we have to have at present between the gudgeon pin and the piston. If we could make this austenitic steel work in conjunction with the low expansion EX.70 piston we think there is some chance of success. E.{Mr Elliott - Chief Engineer} | ||