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).
Bearing test results log sheet for Allison Bearings, Test No. 3.
| Identifier | ExFiles\Box 173\2\ img122 | |
| Date | 24th February 1934 guessed | |
| Page #5 ROLLS ROYCE BEARING TEST. ALLISON BEARINGS. (Test No. 3) Time | R.P.M. | Oil Inlet °C | Oil Outlet °C | Brg. Temp. °C | Oil Press. | Torque Load --- | --- | --- | --- | --- | --- | --- 13 | 2250 | 91.5 | 97 | 101 | 70 | | 3500 | 89.5 | 94 | 99 | 91 | 16.7-17.3 14 | 2250 | 90 | 97 | 102 | 75 | | 3500 | 90 | 97 | 102 | 86 | 16.7-17.3 15 | 2250 | 90 | 97 | 102 | 72 | | 3500 | 89.5 | 96 | 101 | 89 | 16.5-17 16 | 2250 | 89.0 | 94 | 101 | 75 | | 3500 | 89.5 | 96 | 102 | 89 | 16.5-17 17 | 2250 | 90.5 | 96 | 101 | 74 | | 3500 | 90 | 94 | 102 | 86 | 16.5-17 18 | 2250 | 89.5 | 96 | 101 | 75 | | 3500 | 89.5 | 95 | 101 | 89 | 16.5-17 19 | 2250 | 89.5 | 96 | 101 | 72 | | 3500 | 89.0 | 94 | 99 | 90 | 16.5-17 20 | 2250 | 89.0 | 94 | 101 | 72 | | 3500 | 89.5 | 96 | 101 | 90 | 16.7-17.3 End of 10 min. @ 3500 R.P.M. diving test. 2:55 | 3500 | 89.0 | 98 | 101 | 90 | 17 3:00 | 3500 | 90.5 | 97 | 106 | 80 | 17 | 3500 | 92.0 | 100 | 108 | 78 | 17 3:05 | 3500 | 92.0 | 101 | 109 | 75 | 17 | 3500 | 92.5 | 102 | 110 | 75 | 17 3:10 | 3500 | 92.0 | 102 | 110 | 75 | 17 | 3500 | 92.0 | 102 | 110 | 75 | 17 Stop End of run. TOTAL RUNNING TIME AT 3500 RPM & 40 MINS | ||