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).
The suitability of oil-less bushes for heavy loads, with reference to the 'Silent bloc' scheme used by Delage.
| Identifier | ExFiles\Box 4\6\ 06-page56 | |
| Date | 23th December 1931 | |
| X 35. c. Hs.{Lord Ernest Hives - Chair} BY/Cgh.{W Clough}7/G.23.12.31. OIL-LESS BUSHES. ---------- With further reference to DA.{Bernard Day - Chassis Design}2/M.16.12.31. oil-less bushes are not suitable for carrying heavy loads or where the movements are considerable. We have questioned Monsieur Chaumont of Delage, who is now at Derby, and he informs us that they only use oil-less bushes where the loads are light. They do not use such bushes for road spring shackles. Delage use the Silent bloc scheme for the shackle pins and this scheme is similar to what is used on the Hartford and other makes of shock absorbers. Our view of the Silent bloc scheme is that it is not entirely satisfactory if there is a considerable movement. We attach leaflet describing the oil-less bushes, and we could obtain samples if you still wish us to do so, but in regard to the Silent bloc type we should have to get this made specially. BY/Cgh.{W Clough} | ||