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).
Cost savings and reliability of using centrifugal cast aluminium tin bearings.
Identifier | ExFiles\Box 115\3\ scan0086 | |
Date | 3rd November 1937 | |
Hs.{Lord Ernest Hives - Chair} from Rm.{William Robotham - Chief Engineer} 1020 also 1260 Rm{William Robotham - Chief Engineer}3/R.3.11.37. CENTRIFUGAL CAST ALUMINIUM TIN BEARINGS. We understand from the Factory that there is a saving of about 3/6d per bearing to be made if we can adopt centrifugal casting on production. This is because of the large amount of scrap made by either die cast or sand cast bearings as in present practice. 6.B.IV. was fitted up with die cast bearings, with the idea of facilitating production. Whilst it seems difficult to believe the cost figures, we have had a talk with Wheeler, and there is no doubt that centrifugal casting seems to be the only reliable method of getting bearings. In view of this fact, and in the interests of economy we feel that we ought to remove the bearings from 6.B.IV and fit centrifugal castings to the car when it comes in for fitting the overdrive gearbox. Rm.{William Robotham - Chief Engineer} | ||