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 Alto Car & Engineering Co. Ltd. specifying working clearances for connecting rod and main bearings.
| Identifier | ExFiles\Box 116\3\ scan0024 | |
| Date | 26th April 1939 | |
| -2- Alto Car & Engineering Co.Ltd., 26th. April, 1939. the diameter of the housing into which it fits by .0005 to .001 per inch diameter. Working Clearance. Connecting Rod Bearings. Minimum = .001/inch diameter. Maximum = .0013/" " Main bearings. Minimum = .0012/inch dia. Maximum = .00155/inch.dia. Preferred = .00135/inch.dia. (5) Messrs. Wellworthy will be able to supply you with this material, and further they are in a position to make final recommendations regarding bearing design, if you should care to give them the necessary information. We hope this information meets your requirements, and we shall be glad to be of any further assistance. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||