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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).
Letter to The Hoffmann Manufacturing Co. regarding failed bearings and a request for special M.S.13g bearings.

Identifier  ExFiles\Box 159\7\  scan0223
Date  22th March 1939
  
c HPS{Horace Percy Smith - Experimental Factory Mgr}
1375
Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}7/R.{Sir Henry Royce}
22nd March, 1939.

The Hoffmann Manufacturing Co.,Ltd.,
CHELMSFORD.

(For the attention of Mr.C.H. Smith.)

Dear Sirs,

Thank you for your letter of March 18th - reference CHS/AMB.

We cannot tell you the fit of the failed bearings and their housings for a week or two, until the axle is again stripped for examination.

Meanwhile we have decided to increase slightly the capacity of this bearing, and we wonder whether you could let us have two M.S.13g bearings with a special inside diameter of 40 mm. These will enable us to carry out the test immediately, and we hope you can let us have a pair of bearings before the end of the month.

Yours faithfully,

For ROLLS-ROYCE LTD.
  
  


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