Rolls-Royce Archives
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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).
Test report data for Allison bearings.

Identifier  ExFiles\Box 173\1\  img409
Date  6th February 1934 guessed
  
BEARING TEST
ALLISON BEARINGS

R.P.M. Time Oil Inlet Oil Outlet Brg. Temp. Oil Pres. lb.sq.in. 150 Torque Load

1000 1:45 70 C 50 C 67 C 120 18
2000 1:50 80 80 81 120 18
2500 1:55 90 85 96 120 18
" " 90 90 104 110 18
3000 2:00 90 92 112 110 18
" " 90 100 112 90 18
3250 2:05 87 100 132 90 25 lbs
" " 95 90 132 90
" 2:10 95 100 112 80 18
" " 95 100 112 80 16 lbs.

3500 2:17 90 90 127 70 19
" " 100 100 120 70 18
" " 100 100 120 70 18
" " 95 100 120 70 18
" " 92 100 120 75 18
" 2:27 Stop to check oil gauge
" " Check run-new oil gauge
" " 90 90 82 17
" 2:35 90 90 120 70 18
" " 95 92 120 70 17
" 2:40 90 95 120 70 17
" " 95 120 68 17
" 3.45 95 95 120 70 17

Shut down end of 20 min. at 3500

Remarks: 70-30 on all but end mains. End mains were 60-40. Center main 1/8" larger diam. flange than Rolls Royce standard. Others same. Lubrication same as Rolls Royce. Crankshaft #3.
  
  


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