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).
Graph showing running temperature test results and failure points for white metal bearings at various speeds and loads.
Identifier | ExFiles\Box 179b\3\ img317 | |
Date | 8th February 1933 guessed | |
HS{Lord Ernest Hives - Chair} 952, RUNNING TEMP TESTS, WHITE METAL BEARINGS, FAILURE POINTS, NO CONSISTENT DIFFERENCE IN BEARING LIFE WAS NOTICED BY VARYING OIL PRESSURE BETWEEN 5 & 25 LBS/D", METHOD OF TEMP MEASURING, EUREKA IRON COUPLE, TEMPERATURE °C, 250°, 200°, 150°, 100°, 50°, 3600 R.P.M., 3600 R.P.M., 1150 R.P.M., 2800 R.P.M., 1150 P.P.M., 2.6" DIA WHITE METAL BEARINGS, PROJECTED AREA 2.6 D", OIL PRESSURE 25 LBS/D", BREAKING LOAD LBS/D", 0, 200, 400, 600, 800, 1000, 1200, 1400 | ||