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).
The inefficient production of Bentley Bearings in AC.2 and a proposal to switch to die casting.
| Identifier | ExFiles\Box 115\3\ scan0054 | |
| Date | 23th September 1937 | |
| 1020 SWDC. Please let me have a brief memo on present position. Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair}/JWW. c. H1. Re: Bentley Bearings in AC.2. I understand at the present time the bearings produced in AC.2. material are being made from a pot which weighs in the region of 4 1/2 lbs. and the actual bearing weighs about 4 ozs ( two to three bearings are produced from each pot). Apparently this procedure is necessary owing to the fact that the experimental bearings which were standardised, were produced in this manner. The only way to overcome this excessive machining in order to produce the bearings, is to have the bearings produced as die castings, and I understand a certain number of die cast bearings have already been handed to the Experimental Dept. for test purposes. I am anxious to reduce the machining time on these bearings as soon as possible, therefore if tests have not already been carried out with the die cast bearings, will you please arrange for them to be put in hand as soon as possible. BY.{R.W. Bailey - Chief Engineer} | ||