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).
Hardness of a re-nitrided crankshaft from chassis B.35.KU, the Paris Trials Car.
| Identifier | ExFiles\Box 146\1\ scan0180 | |
| Date | 27th January 1938 | |
| To Bentley Motors Ltd. Derby.................. By Copy to Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} Levallois Sr/VA6/ET.27.I.38 1245 Re: CHASSIS B.35.KU - PARIS TRIALS CAR --------------------------------------- With reference to the crankshaft which we removed from the above chassis and on which we have since had the main journals re-ground to .010" u/s and the shaft re-nitrided by Messrs. Aubert & Duval, the above firm have informed us that, after re-nitriding, the hardness of the case was 650 Vickers/Brinell. We spoke about the above with GWH.{George W. Hancock - Head Chateauroux} during his last visit to Paris. Sr/VA. | ||