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).
Technical drawing detailing the specifications of differential pinions.
| Identifier | ExFiles\Box 126\2\ scan0164 | |
| Date | 18th November 1938 guessed | |
| SS{S. Smith}244 DIFFERENTIAL PINIONS 20 TEETH 11/32" 1 3/16" DIA 1 3/8" DIA 2 1/8" DIA 3 1/16" DIA 2 3/4" DIA 1/16" CAFR AT 45° 1 13/32" 19/32" 5/32" .940 33°4' 35°53' 26°40' 2.050 DIA 4 SLOTS THUS 3/16" DIA EQUALLY SPACED 4 SLOTS THUS 3/16" DIA EQUALLY SPACED | ||