Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Relaying a cable from the USA comparing the performance of Allison and Derby engine bearings.

Identifier  ExFiles\Box 173\1\  img163
Date  2nd February 1934
  
To Mr. Sr. From Mr. Hs.{Lord Ernest Hives - Chair}
c. to Mr. Gor.
c. to Mr. L.
c. to Mr. By.{R.W. Bailey - Chief Engineer}
c. to Mr. F.{Mr Friese}
c. to Mr. Ip.

The following cable has been received from
RHC.{R. H. Coverley - Production Engineer} in U.S.A. -

"COMPLETED TWENTY MINUTES RUNNING ALLISON BEARINGS AT THREE THOUSAND FIVE HUNDRED RPM. BEFORE DISMANTLING BEARING CONDITION GOOD. COMPARATIVE TESTS DERBY BEARINGS FAILED. OCCURRED AFTER TWO AND A HALF MINUTES AT THREE THOUSAND TWO HUNDRED AND FIFTY RPM TEMPERATURE REACHED TWO HUNDRED. MENTIONABLE BEARING CONDITION POOR. PROPOSE RUNNING FURTHER TESTS ALLISON BEARINGS IF SATISFACTORY INCREASE LOAD TO ASCERTAIN MAXIMUM PERMISSIBLE RPM. JOV-SUAY."

Hs.{Lord Ernest Hives - Chair}
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙