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).
Wear adjustment limits of the Borg & Beck clutch on a Bentley model.
| Identifier | ExFiles\Box 129\2\ scan0122 | |
| Date | 25th November 1935 | |
| To By: E* X1110 Hs{Lord Ernest Hives - Chair}/Smth.28/KW.25.11.35. Borg & Beck Clutch on Bentley. The present standard clutch has the same thickness of linings as the Borg & Beck, but we allow 50% more wear on our clutch than is stipulated on the Borg & Beck drawing SK.30604/2. We wrote to ask them if they were agreeable to our increasing the maximum wear adjustment. They replied in the negative and are insistent that we do not exceed the 9/16" trunnion movement given on the drawing because of the danger of the rivets scoring the flywheel and pressure plate. In view of this will you please ensure that it is impossible for more adjustment to be given than will compensate for 9/16" of trunnion movement. Hs{Lord Ernest Hives - Chair}/Smth. | ||