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Test bed failure of an experimental Peregrine starter motor due to lubrication issues in the commutator end bearing.


Identifier  ExFiles\Box 62\1\  scan0128
Date  21th March 1933
  
x6134
E. {Mr Elliott - Chief Engineer} from Hs {Lord Ernest Hives - Chair} /Wst.
C. BY {R.W. Bailey - Chief Engineer} /RD.

Hs {Lord Ernest Hives - Chair} /Wst.6/KT. 21.3.33.

PEREGRINE(Experimental Bentley car never produced / Aero Engine) STARTER MOTOR BEARINGS.

We have had a failure to engage of one of our experimental Peregrine(Experimental Bentley car never produced / Aero Engine) starter motors on the test bed due to the lack of lubricant in the comm. end bearing. The motor seized in the out position and a few drops of oil on the shaft, which was found to be dry and polished, corrected the trouble.

It appears that the small spring loaded pad is not a sufficient reservoir for the lubricant for the comm. end bearing.

Hs {Lord Ernest Hives - Chair} /Wst.
  
  
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).


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