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).
Unexpected bearing failure and outlining further tests for the Eagle XVI engine plain bearings.
| Identifier | ExFiles\Box 42\1\ Scan123 | |
| Date | 30th November 1925 | |
| To Hs.{Lord Ernest Hives - Chair} from AJS. c. to CJ. RG.{Mr Rowledge} 3829 AJS1/M30.11.25. EAGLE XVI - PLAIN BEARING TESTS. X.4114 X.3829 Referring to your report on the above - Hs{Lord Ernest Hives - Chair}2/LG 26.11.25., the failure of the bearing at the revs. and load given in your report is a little unexpected, but as we find the bearing in practice will not be run at revs. greater than 2,000., we would ask you to continue the tests running the shaft at 2000 revs., and commencing the load with say 1500 lbs. and increasing this until the bearing fails. As mentioned in our previous memo. AJS1/M17.10.25., in connection with this, we should like you to test a plain bronze bush (floating) in addition to the whitemetalled steel floating one, and also a fixed whitemetal lined bush. Mr. Royce also thinks you might observe whether there are any differences of temperature with different grades of oil, also what effect oil pressure has upon temperature. In addition would you please observe, and let us know, approx. at what speed the floating bush revolves relative to the shaft revs., whether it is somewhere about half speed, or more, or less than this? AJS. | ||