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).
Hoffmann type needle roller bearing for the Wraith Front Pivots.
| Identifier | ExFiles\Box 9\7\ 07-page121 | |
| Date | 19th January 1938 | |
| BH/MS c.c. DAYTON. c.c. Rm.{William Robotham - Chief Engineer} 650 DA.{Bernard Day - Chassis Design}2/G.19.1.38. F.J. HARDY. What about- Bill Rm{William Robotham - Chief Engineer} WRAITH FRONT PIVOTS. Herewith is FD.{Frank Dodd - Bodies}97, Needle Roller applied to the bottom journal bearing of the Wraith Front Pivot. A Hoffmann type needle roller bearing is shewn and the dimensions of the roller races are those of a Hoffmann standard, but the outside of the outer race is special. Arrangements may be made with Hoffmanns as to its manufacture. This is required for the 10,000 miles car. DA.{Bernard Day - Chassis Design} | ||