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).
Investigation into axle component wear and a proposed theory related to braking and universal joints.
| Identifier | ExFiles\Box 5a\2\ 02-page206 | |
| Date | 14th March 1930 guessed | |
| We will fit the brake lever when it duly arrives. We shall endeavour to bring about the same conditions with the new axle as we obtained with the one taken off. We are of the opinion that the wear of the ball races was due to continual braking after high speeds, and our reason is that the universal joints are not sufficiently universal for the winding up of the axle, and place a strain on the pinion bearing, so may be strong, but if we can reproduce the conditions again, on this axle, we shall of course have proved our theory. We give this reason, because after a certain period when our tests were finished, there has not been the amount of braking, and the housing since then has not got worse, a dynamometer test would not reproduce this effect. G.R.H. [Signature] [Handwritten:] Redrawing universal joint we had to increase clearance required. Checked DA{Bernard Day - Chassis Design} | ||