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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
  
  


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