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).
Test report on the effect of a 'Belleville' spring washer on the removal load for a Bentley 50 rear axle.
| Identifier | ExFiles\Box 111\4\ scan0086 | |
| Date | 23th November 1938 | |
| 802 To By.{R.W. Bailey - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/W.Bell. c. to Rm.{William Robotham - Chief Engineer} c. to Ds. c. to Hdy.{William Hardy} HPS{Horace Percy Smith - Experimental Factory Mgr}/WB.{Mr Brazier/Mr Bell}1/CB.23.11.38. BENTLEY 50 REAR AXLE - PD.90. "Belleville" Spring Washer. A test was carried out to find the effect upon the removal load of putting a "Belleville" spring washer GB.4015 under the retaining collar GB.4013, the latter being shrunk into position on the shaft in the normal manner. It was found that the load was reduced by approximately 0.25 ton, and this being less than the variation in removal load, due to the dimensional tolerances, cannot be considered as detrimental so far as direct loading is concerned. HPS{Horace Percy Smith - Experimental Factory Mgr}/W. Bell. | ||