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).
Comparing bronze plates against steel and fibre plates for use in rear shock absorbers.
| Identifier | ExFiles\Box 19\2\ Scan087 | |
| Date | 13th November 1920 | |
| X.762. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to Bn.{W.O. Bentley / Mr Barrington} c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to By.{R.W. Bailey - Chief Engineer} X.3461b. R.R. REAR SHOCK ABSORBERS. We have fitted a pair of R.R. shock Absorbers with bronze plates. This means that we have bronze and steel friction surfaces. We find by fitting bronze plates we can get in twice the number of plates - with twice the number of plates we getthe same friction as we do when we use fibre or Ferodo. 1st. 2nd. 3rd. 4th. Steel & Fibre Plates. 18 34 49 64 Bronze & Steel Plates. 15 25 45 65 X.582. X.762. We have grooved the bronze plates so that lubrication can get between the surfaces. We have also obtained a greasegum so that the shock absorber can be kept filled with grease. One big advantage we get by suing steel plates is the fact that if kept greased we halve the load on each plate which will help tremendously in avoiding wear on the keys. We have examined one of the Trauffault Shock Absorbers which has been on 7.CA Car for several years and has had no attention. We find there that the bronze and steel surfaces are still in good condition. Contd. | ||