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).
Illustration showing wear points on taper roller bearings when run with abrasive lubricants.
| Identifier | ExFiles\Box 114\1\ scan0102 | |
| Date | 11th January 1937 guessed | |
| Fig. 20 SHOWING POINTS IN TAPER ROLLER BEARINGS SUBJECT TO WEAR WHEN RUN IN ABRASIVE LUBRICANTS -(b) -(a) TIMKEN MADE IN U.S.A. | ||