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).
Modifications to the driver dog and splines to reduce wear and address a knocking issue.
| Identifier | ExFiles\Box 84\4\ scan0121 | |
| Date | 13th November 1936 guessed | |
| - 2 - Regarding (3) it has occurred to me that if it were possible to alter the design of the driver dog by increasing the length of the spline and by so doing, increase the loaded area, wear at any rate would not be so rapid. This can be done in my opinion by removing the splined flange, increasing the length of the driver splines and fitting a safeguarding washer to prevent the driving dog from fouling the ballrace. It seems to me that something can be done in this direction to allow the Repair Depots to take retrospective action regarding cases of this knock without making any very radical changes in design. Whilst on the subject of this driver knock, we invariably find at K that both the inner, or road shaft spline and the outer, or hub splines, are devoid of lubrication (grease) and are rusty in consequence with the rust of impact. I attach a sketch which is self-explanatory. K/KC. | ||