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).
Specification sheet detailing pulley dimensions including V-belt angles and widths.
| Identifier | ExFiles\Box 123\5\ scan0078 | |
| Date | 6th September 1938 guessed | |
| PULLEY DIMENSION - B.60. PULLEY. PIECE No. Correct angle of VEE Correct top width of VEE. ------------------------------------------------------------------------------------------------ (1) C/shaft double pulley EB.3974 31º .620. (both Vees same) (2) Fan pulley EB.3947 32º .620. (3) Water pump pulley EB.3925 26º .610" (4) Dynamo pulley DB.{Donald Bastow - Suspensions}1846. 25º .610. ............ | ||