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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).
Engine bearing test results for Allison Bearings, Test #6.

Identifier  ExFiles\Box 173\2\  img236
Date  22th February 1934
  
33
February 22, 1934

ROLLS ROYCE ENGINE BEARING TESTS - Test #6

Allison Bearings.

TIME R.P.M. OIL INLET °C OIL OUTLET °C BRG. TEMP. °C OIL PRESS. lb/sq.in. TORQUE LOAD

1:26 2250 89.5 94 102 57 7.1-7.6
3500 89.5 94 109 71 15.5-16
1:29 2250 90.0 94 102 57 7.1-7.6
3500 90.0 94 109 71 15.5-16
1:31 2250 90.5 95 102 56 7.1-7.6
3500 90.0 94 109 69 15.5-16
1:33 2250 91.0 95 104 55 7.1-7.6
3500 90.0 94 109 70 15.5-16
1:35 2250 89.5 94 102 57 7.-7.5
3500 89.5 94 109 72 15.5-16
1:38 2250 89.5 94 102 58 7.1-7.6
3500 90.0 94 109 71 15.5-16 ✓
1:40 2250 90.0 94 102 58 7.1-7.6
3500 90.0 93 109 71 15.5-16
1:42 2250 90.0 94 102 57 7.2-7.7
3500 90.0 93 109 72 15.6-16.1
1:45 2250 90.5 94 104 56 7.1-7.6
3500 90.0 93 109 70 15.5-16
1:47 2250 90.5 94 104 56 7.2-7.7
3500 90.5 94 109 70 15.5-16

End of diving tests.

1:48 3500 91.0 96 114 70 15.7-16.2
1:50 3500 90.5 98 118 71 16.0-16.5
1:53 3500 90.5 98 119 70 16.0-16.5
1:55 3500 90.5 98 119 70 15.7-16.2
1:58 3500 89.5 98 118 72 15.7-16.2
2:00 3500 89.5 97 117 70 15.5-16.0
2:03 3500 89.5 97 117 70 15.5-16.0

End of 40 min. @ 3500 R.P.M.
Start 1 hour run @ 3000 R.P.M.

2:05 3000 88 96 110 71 12.0-12.5
2:15 3000 89.5 95 107 64 11.5-12.0
2:25 3000 88.0 93 106 66 11.5-12.5
2:35 3000 90.0 94 107 64 11.5-12.2
2:45 3000 87.5 93 107 66 11.5-12.2
2:55 3000 89.0 94 107 65 11.5-12.2
3:05 3000 90.0 95 108 63 11.5-12.2

Stop. End of tests.
  
  


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