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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 Hoyt Metal Co. requesting information on 'Satco' lined bearings for testing.

Identifier  ExFiles\Box 115\1\  scan0353
Date  11th June 1937
  
Rm{William Robotham - Chief Engineer}/Swd1.1/AP.
1020
Experimental Department
11th June 1937

The Hoyt Metal Co.,
Putney.
LONDON S.W.15.

Dear Sirs,

We thank you for the bearings which we have received today, comprising 7 bushes lined with Satco, 2 pairs of bearings lined with Satco, 3 pairs of bearings lined with Satco No.11/23.

Also we thank you for the jig.

We are not sure what the symbol N.11/23 represents, so perhaps you would make this clear before we prepare the bearings for test. Regarding the 'Satco' lined bearings we should be pleased for any detailed information on this material in the following respects:-

(1) Comparative strength at various temperatures against say your Z.3. material and also its cost.

(2) Its approximate analysis and its quality of adhesion to the shells.

(3) Whether it is critical to oil temperature or type of oil.

The above information will enable us to carry out tests in accordance.

Yours faithfully,

FOR ROLLS-ROYCE LIMITED.
  
  


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