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).
Results and analysis of axle shaft tests.
| Identifier | ExFiles\Box 98\1\ scan0158 | |
| Date | 19th May 1939 | |
| Ds. Rm.{William Robotham - Chief Engineer} HPS{Horace Percy Smith - Experimental Factory Mgr}/Bl. BY/NS.{Norman Scott} tots P. 402 BY.4/G.19.5.39. AXLE SHAFT TESTS. Referring to HPS{Horace Percy Smith - Experimental Factory Mgr}/Bl.1/CB.16.5.39, it is very evident that the elastic movement of the shaft i.e. 'bowing' along its length causes the retaining bush to lever itself clear of the race, hence the better condition of the shaft fitted up with the spring washer between the race and the retaining collar. It is important to see there is another such washer between the race and the collar on the outside of the race relative to centre line of the car or the race will be forced to move axially, and there will be extra stress on the shaft where it runs into the flange. Solidretaining collar fits are only possible if spherical surfaces are arranged on each side of race with the centre of the spherical faces where axes of shaft and bearing cross. The cage for the balls in the ball race should have Rm{William Robotham - Chief Engineer}/Hdy{William Hardy}'s clearance allowed, as in the case of the bevel pinion thrust, to allow for deflection of the inner race relative to outer. BY.{R.W. Bailey - Chief Engineer} By | ||