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).
Article detailing new high-speed aluminium alloy bearings and their performance compared to other bearing metals.
| Identifier | ExFiles\Box 115\2\ scan0443 | |
| Date | 11th April 1939 | |
| The Motor April 11, 1939. NEW BEARINGS for high speeds Silver-content white metal main bearing after 15,000 miles hard driving on 4¼ Bentley. Normal white metal main bearing after 15,000 miles on 4¼ Bentley on Continent. Lead base lined main bearing after endurance on 4¼ Bentley equal to 10,000 miles on road. White metal lined big end after 30 hours endurance test. Phantom III big end RR aluminium alloy loose bushes after 30 hours endurance. RR aluminium alloy main bearing after 15,000 miles hard driving on 4¼ Bentley. (Centre) RR aluminium alloy big end after 15,000 miles hard driving on 4¼ Bentley. The big end on the left and the main above show the results from the new aluminium alloy. An article in this issue gives details of the new aluminium alloy now being used for bearings on Bentley cars. Pictures above show the wearing qualities of this contribution to high-speed reliability compared with other bearing metals in similar engines. | ||