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 standardization of modified wheel drivers for the Bentley Rear Axle.
| Identifier | ExFiles\Box 84\4\ scan0221 | |
| Date | 1st June 1937 | |
| BY.{R.W. Bailey - Chief Engineer} c.c. H.{Arthur M. Hanbury - Head Complaints} -Ba. Rm.{William Robotham - Chief Engineer} 302 CRY E/HDY.{William Hardy}1/HP.1.6.37. Bentley Rear Axle. Rm{William Robotham - Chief Engineer}/Cry.13/R.26.5.37. With reference to the modified wheel drivers to EX.25109/A which are now to be standardised to reduce knocking, we send herewith N.Sch.4935 referred to in the above memo, and not previously issued. Fig.2 on this scheme shows the original design from which EX.25109/A was made, but there is no need to work to the N.Sch. as there are Ex.details of all the pieces and all that has to be done is to make an allowance for spline wear in the hub as mentioned in the Experimental Department memo. It will be found that the diametrical clearance between the boss of the driver and the axle tube has been increased from .012 on EX.25109 to .032 on EX.25109A. E/HDY.{William Hardy} N.Sch.4935 herewith. | ||