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).
Laboratory report showing transverse and longitudinal sections of a needle roller race from a universal joint pin, etched to reveal the case depth.
| Identifier | ExFiles\Box 87\3\ scan0094 | |
| Date | 16th August 1937 | |
| ROLLS-ROYCE LABORATORY REPORT: H1/EJW.4/JN.16.8.37. M 1,389/2 X 3 TRANSVERSE & LONGITUDINAL SECTIONS OF NEEDLE ROLLER RACE OF UNIVERSAL JOINT PIN GB.2311. ETCHED TO SHOW DEPTH OF CASE. | ||