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).
Sketch detailing wear on a Bentley SO rear axle shaft after testing.
| Identifier | ExFiles\Box 98\1\ scan0155 | |
| Date | 30th December 1938 | |
| BENTLEY S.O. REAR AXLE SHAFT TESTS SKETCH OF WEAR ON SHAFT Ex 31270 WHEN DISMANTLED MATERIAL. B.S. SPEC S 28 DIAMETER OF SPLINES WORN RIDGE WIDTH OF SPLINES ALSO REDUCED HERE WEAR & CORROSION DUE TO INNER RACE MOVING ON SHAFT BURR BL 2257 | ||