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).
20,000-mile test on a strengthened Bentley front axle.
| Identifier | ExFiles\Box 84\3\ scan0213 | |
| Date | 16th April 1934 | |
| X201 To Sg.{Arthur F. Sidgreaves - MD} c. to Wor.{Arthur Wormald - General Works Manager} c. to By.{R.W. Bailey - Chief Engineer} c. to Rd. C. to E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}6/KW.16.4.34. BENTLEY FRONT AXLE. We have run on 4-B-IV for 20,000 miles a strengthened axle to N.Sch.3749. This axle has an increased section between the spring pads and pivots, and also a stiffer housing for the top pivot bearing. At the end of 20,000 miles there was no permanent forward twist of the pivots. The pivot bearing was also in perfect condition showing none of the usual signs of overload of the housing. We are not issuing a Standardisation Sheet for this axle as it has a 4º pivot lean, but shall fit to the next 10,000 miles car an axle to N.Sch.4000, of 1º lean, but incorporating all the strengthened features. Hs{Lord Ernest Hives - Chair}/H.Grylls. | ||