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).
Comparative analysis of weights and specifications for Packard and R-R rear axles and bevels.
| Identifier | ExFiles\Box 127\1\ scan0092 | |
| Date | 24th March 1920 | |
| X.435 2. To Hs.{Lord Ernest Hives - Chair} From RHC.{R. H. Coverley - Production Engineer} C.K. RHC{R. H. Coverley - Production Engineer}3/LG24.3.20. X.3454 X.20-0. RE PACKARD AND R-R REAR AXLE. We give below particulars and comparative weights of Packard and R-R axle, also particulars of Packard Bevels. Packard rear axle weights. R-R rear axle weights. cwts.qrs.lbs. cwts.qrs.lbs. Casing with brakes complete. 2 0 0 Casing with brakes complete. 1 3 24 1/2 2 road wheels with tyres & 2 2 0 2 road wheels with hubs, brake 2 2 11 11 brake drums. drums tyres. Bevel pinion and propeller 0 1 21 Bevel pinion and prop.shaft with 0 2 17 shaft. casing. Differential and driving 0 3 20 Differential and driving shafts 0 2 23 1/4 shafts. with driving dogs. to tal - 5 3 13 Total - 5 3 20 3/4 complete axle - 5 3 17 complete axle - 5 3 22 PACKARD BEVELS. Bevel wheel. Bevel Pinion. 14.062 dia. 61 teeth. 3.838 dia. 14 teeth. angle of teeth 11° angle of teeth 74° 30' Axle shaft bevel. Diff: Bevel Pinion. Dia. 4.835" dia. 2.700" angle of teeth 22° 30' angle of teeth 58° 30' Number of teeth 24 number of teeth 12 ----------------- RHC.{R. H. Coverley - Production Engineer} R.R.H. A 236 (1.100 T) (S) P. 840. 6.8.19. D.{John DeLooze - Company Secretary} 2160 | ||