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).
Back axle bevel gear and proposing the use of ball thrust bearings to manage inward thrust.
| Identifier | ExFiles\Box 49\1\ Scan189 | |
| Date | 18th June 1920 | |
| R.R. 399 (250T) (SD676 19-7-17) M1P1t80865 X 3612 To R.{Sir Henry Royce} from Da.{Bernard Day - Chassis Design} Copy to Bn.{W.O. Bentley / Mr Barrington} Copy to EFC. Da{Bernard Day - Chassis Design}19/CB18.6.20. X.4150. BACK AXLE BEVEL GEAR. X.3457. X.3612. As arranged now, the Gleason bevels exert an inward thrust on the overrun which is taken on the plain thrust washer of the present back axle pinion mounting. We are not sure whether this has been fully appreciated, and though no trouble is reported as result-ing from it, we thought it would be wise to consider whether a ball thrust should not be arranged to take this load. We accordingly send two schemes shewn on "N" scheme 392 - Fig 1 being a single thrust bearing to take thrust in both directions, and Fig 2 a double ball thrust. The existing propeller shaft is used in both cases. Da.{Bernard Day - Chassis Design} | ||