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).
Instruction to arrange an experimental test on a 25/30-HP dynamo, replacing a ball bearing with a plain bearing to fix a noise issue.
| Identifier | ExFiles\Box 168a\3\ img381 | |
| Date | 3rd May 1937 | |
| To By/RD. from Rm{William Robotham - Chief Engineer}/wst. c. De. 6142 Rm{William Robotham - Chief Engineer}/wst.4/AP.3.5.37 Will you please arrange to instruct for Experimental Test a 25/30.HP. dynamo equipped with a plain bearing at the comm. end instead of a ball bearing. we are continually getting trouble due to noisy bearings and we believe this feature will ease the situation considerably. we hope later that it will be possible to use plain bearings at both ends instead of ball bearings. Rm{William Robotham - Chief Engineer}/Wst. | ||