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Technical note regarding the correct reamed fit for bolts on a rubber engine mounting to prevent issues from vibration.


Identifier  ExFiles\Box 65\4\  scan0084
Date  8th September 1928
  
BY. {R.W. Bailey - Chief Engineer} from Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson}
48005
Hs {Lord Ernest Hives - Chair} /Rn {Mr Robinson} 5/LG18.9.28.

RUBBER ENGINE MOUNTING.

Experience has shewn that the bolts K.332 and F.78402 holding the top and bottom portions of the rubber engine foot together must be made a reamed fit in F.78142 and F.78141, otherwise the initial clearance rapidly increases due to vibration. This matter has already been taken up with the D.O.

Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson}
  
  
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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