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).
In reply to a query about Skefko Ball Bearings, detailing a report on their silence test performance.
Identifier | ExFiles\Box 20\7\ Scan077 | |
Date | 18th November 1913 | |
R.R. 985A (150 m) (XX. 450. 8.10.13) E.P. 5166. Wor{Arthur Wormald - General Works Manager}/SM10/L181113. Re Skefko Ball Bearings. X.548 Na.{Mr Nadin} 18-11-13. In reply to your memo Na{Mr Nadin}2/B111113, Mr Haldenby reports as follows :- "I have just received some of these. A set "were fitted to a gear box on November 14th "on 1926. One of the points we should know "is what percentage of bearings had to be "returned by the Inspectors because they "failed to pass the silence test. Mr Matthews "is, I understand, obtaining a report. "The bearings used on the bumping test "were Hoffmann." p. Wor.{Arthur Wormald - General Works Manager} | ||