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 Packard and R-R rear axle weights and bevel gear specifications.
| Identifier | ExFiles\Box 49\1\ Scan169 | |
| Date | 24th March 1920 | |
| H H 235 a (100 T) (T & P 816 6-8-19) G 2460. X.3457. To Hs.{Lord Ernest Hives - Chair} from RHC.{R. H. Coverley - Production Engineer} RHC{R. H. Coverley - Production Engineer}3/LG24.3.20. X.435. RE PACKARD AND R-R REAR AXLE. X.200. X.3457. We give below particulars and comparative weights of Packard and R-R axle, also particulars of Packard Bevels. Packard rear axle. R-R rear axle. weights. weights. cwts. qrs. lbs. cwts. qrs. lbs. Casing with Casing with brakes complete. 2 0 0 brakes complete. 1 3 24½ 2 road wheels 2 road wheels with tyres & with hubs drums brake drums. 2 2 0 tyres. 2 2 11 Bevel pinion Bevel pinion and and propeller prop shaft with shaft. 1 21 casing. 2 17 Differential and Differential and driving shafts. 3 20 driving shaft with driving dogs. 2 23 4½ Total 5 3 13 Total 5 3 20 3 complete axle = 5 3 7 complete axle 5 3 22 PACKARD BEVELS. Bevel wheel. Bevel Pinion. 14.062 dia. 61 teeth. 3.838 14 teeth. angle of teeth 11° angle of teethe 74° 30' Axle shaft bevel. Diff. Bevel Pinion. Dia. 4.835" dia. 2.700" angle of teethe 22° 30' angle of teeth 58° 30' Number of teeth 24 number of teeth 12 RHC.{R. H. Coverley - Production Engineer} | ||