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).
Summary of findings on axle efficiency, worm drive techniques, and component improvements.
| Identifier | ExFiles\Box 114\1\ scan0106 | |
| Date | 29th January 1937 | |
| (sheet 2) further, and the efficiency of the axle under operating conditions is still too low, compared with the hypoid bevel type, to merit consideration. The attached list E.1/HP.29.1.37 summarises the present position of the worm drive technique. Points we learned which may be applicable in other directions are that a Schatz bearing with the inner race split instead of the outer race has been found to be an improvement. Differential cases might be further stiffened with advantage, and the bellows gland with bronze seal is superior to the carbon ring type for retaining lubricant. E.{Mr Elliott - Chief Engineer} | ||