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).
Bentley III rear axle shaft and bearing test results.
| Identifier | ExFiles\Box 111\4\ scan0109 | |
| Date | 30th March 1939 | |
| BENTLEY III REAR AXLE SHAFT TESTS SHAFT GB3604 MODIFIED TO GB4020. BEARING HOFFMAN N° 340 THE SHAFT WAS IN GOOD CONDITION AFTER 75 HOURS AT 2 TONS LOAD EXCEPT FOR .0005" WEAR ON THE DIAMETER UNDER THE BEARING SECTION OF ONE PIECE OF CAGE SHOWING PROJECTION FORMED DURING TEST OUTER AND INNER BALL RACES WERE IN GOOD CONDITION EXCEPT THAT THE INNER RACE HAD SHOWN SIGNS OF TURNING ROUND ON THE SHAFT ONE BALL WAS BADLY CHIPPED - ALL THE OTHERS WERE STILL IN GOOD CONDITION ROLLS-ROYCE, LTD PRINT ROOM APR 17 1939 DERBY. BL2326 | ||