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).
Specifications for splines, gears, shafts, and synchromesh components.
| Identifier | ExFiles\Box 173\4\ img112 | |
| Date | 23th November 1935 guessed | |
| aw (1) 15 pitch splines & twenty pitch serrations including on the sides only. To get a good fit - the shaft should be .001" tough to finish hole or broach - the supports also are of a cast iron cap. (2) The gears should have the Philips finisher line and can then take finisher done with the gear mounted on a splined arbor for concentricity. Finisher assembly would avoid press fitting. (3) End load on Propshaft (4) The driving piece should also have involute splines as long as possible again for oil cushioning. (5) Taper Timken on the 1st motion shaft would be cheaper and shorter than the present arrangement. The separate synchromesh location therefore is expensive. Calling it the cone and the use of an oil-ring affects the female shaft cone should be revised. | ||