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).
Photograph showing the condition of lower bearing halves after a 46-hour endurance test.

Identifier  ExFiles\Box 114\2\  scan0222
Date  22th November 1935 guessed
  
Condition after 46 hours comprising
30 mins. at 4,000 r.p.m.
25 " " 4,250 "
5 " " 4,500 " in each hour.
Oil Inlet temp. 100°C.
B14
LOWER HALVES
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