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 Bentley 111 propeller shaft and its centre bearing.
| Identifier | ExFiles\Box 99\4\ scan0097 | |
| Date | 13th September 1937 | |
| BENTLEY 111 - PROPELLER SHAFT. CENTRE BEARING. Herewith is PD.10, shewing the rubber mounted bearing in the centre of the divided propeller shaft. A standard Hoffman deep groove bearing is shewn, and it is intended that the grease retainers shall be permanently fitted round it. Since the two screw retainers on the shaft must be assembled the right way round, the forward one has a slightly larger bore than the rear one. This will mean the rear water baffle, if the same piece as the forward one, being loose on its spigot. The effect of this on out of balance is to be tested. It is suggested the Hardy Spicer flange piece might be lightened as indicated, and this should be taken up with them. The remainder of the propeller shaft is standard Hardy Spicer, and should be set out in the form of an assembly for checking the length required. As far as can be ascertained the standard joint will go through 20" of angle, and this should be sufficient to absorb the required movement between full rebound and metal to metal bump. DA.{Bernard Day - Chassis Design} | ||