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).
Request for a comparative weights table for axle parts of the EAC.7 and 40/50 HP models.
| Identifier | ExFiles\Box 107\4\ scan0081 | |
| Date | 25th October 1927 | |
| X4538 To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG25.10.27. COMPARATIVE WEIGHTS - 40/50 AND 20 HP. X8840 AXLES. Will you please let us have the comparative weights of the two types of axle :- | WT. OF PARTS REQUIRED. | (A) EAC. 7. | (B) 40/50 HP. | |------------------------------------------------------------|--------------|---------------| | Wt. of axle tubes. | | | | " " brake drums. | | | | " " brake shoes and brake shoe mountings, carrier plates etc.| | | | Wt. of camshafts and camshaft mounting. | | | | Wt. of prop. shaft complete (less universal joint.) | | | | Wt. of two universal joints. A.{Mr Adams} " " sphere and casing. B. | | | | Wt. of pinion. A.{Mr Adams} " " torque tube. B. | | | | " " rear springs. | | | | " " complete crown wheel and differential assembly. | | | | Wt. of complete axle forward of the gearbox. | | | | Wt. of central axle housing. | | | | " " driving shafts. | | | | " " thrust race housing and thrust races for the pinion. | | | Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||