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).
Inertia machine test graph showing coefficient of friction and temperature against the number of stops for a Bentley brake material.

Identifier  ExFiles\Box 141\3\  scan0158
Date  27th July 1932
  
BRITISH BELTING & ASBESTOS LTD. SCANDINAVIA MILLS, CLECKHEATON, YORKS., ENGLAND. INERTIA MACHINE TEST. TEMP. DEGREES. F.{Mr Friese} C. COEFFICIENT OF FRICTION. NUMBER OF STOPS. COEFF. OF FRICTION. TEMPERATURE. Material: MINTEX N.M.T. COMP. 2"x¼" Bentley. Brake Rig: STANDARD B.B.A. Drum: CAST IRON. Time Interval: 2 MINUTES. Flywheel R.P.M. 955. Drum Speed: 3,000 Ft./Min. Power Absorption per Stop 214,000 Ft. Lbs. 29,600 Kg. Metres. Weight Loss: 12.0 Gms. Wear Factor 0.405 H.P. Hrs per Gramme. Date 27 JULY 32. Test No. C.242. I.M. Mark.
  
  


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