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).
Inspection report on the condition of a Rear Axle (10:41 Ratio) from Chassis 1.B.IV.
| Identifier | ExFiles\Box 84\4\ scan0261 | |
| Date | 29th June 1937 | |
| To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c. to HPS.{Horace Percy Smith - Experimental Factory Mgr} CHASSIS 1.B.IV. Rear Axle (10:41 Ratio). GB.1378. O.S. Axle Shaft. The teeth and driving splines on the off-side rear axle shaft are in fairly good condition. The shaft itself has been twisted uniformly through an angle of 65 3/4°. It was magnetic crack-tested and found O.K. GB.1379. N.S. Axle Shaft. The teeth on the near-side shaft are in good condition. The driving splines have been distorted with the shaft, the latter having been twisted through 113 1/2°. Small cracks are apparent at the inner end of all the splines. These are shown on the accompanying sketch Ex.I.183. G.100050 Rear Wheel Drivers. (S/M) The rear wheel drivers were found to be in excellent condition - they were crack-tested and found O.K. GB.2035. Pinion Thrust Bearing. The end float in this bearing on dismantling was found to be .00075. GB.186 Crown Wheel. Ten adjacent G.100261 studs have broken off at the end of the thread which is screwed into the crown wheel. The five remaining studs were found to have worked loose in the wheel. On the attached sketch, Ex.I.187, we show the conditions with above details. GB.2019. Centre Casing. The pinion housing bore was found to be .020" out of alignment. The above conditions are caused by abuse in an effort to break the rear wheel drivers; the drivers, however, survived the test. HPS{Horace Percy Smith - Experimental Factory Mgr}/R.{Sir Henry Royce} Hollingworth. | ||