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).
Mounting steel artillery wheels on the Phantom model with a new axle.
| Identifier | ExFiles\Box 17\7\ Scan001 | |
| Date | 14th August 1926 | |
| To BY.{R.W. Bailey - Chief Engineer} from DA.{Bernard Day - Chassis Design} c. to BJ. Hs.{Lord Ernest Hives - Chair} 47810 DA{Bernard Day - Chassis Design}1/M14. 8. 26. STEEL ARTILLERY WHEELS ON PHANTOM WITH NEW AXLE. X.4586 X.7420 X.7810 Herewith we send N.sch.2215 shewing the method of mounting steel artillery wheels on the new front axle. It also involves a new hub on the rear axle. As regards the spoking of the steel wheel we want 12 spokes, but we do not intend to tie you down to the exact dimensions, radii, etc., shewn on this drawing, but to follow standard practice. It will be seen that we have slightly modified the locking device so as to eliminate the 2nd. row of cast- ellations which was visible from the outside. Mr. Royce has also suggested reducing the ball bearing centres on the front wheel so as to save a good deal of overhang. This involves a special stub axle and a larger outer ball bearing. DA.{Bernard Day - Chassis Design} | ||