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).
On the unsuitability of Skefko ball bearings for end pressure applications like road wheels, noting they are noisier than Hoffmann or D.W.F. types.
| Identifier | ExFiles\Box 20\7\ Scan084 | |
| Date | 10th July 1914 | |
| R.R. 235A (150 H) (W.W. 428. 17-6-14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 6626. Copy to Mr. Claremont. COPY To Da.{Bernard Day - Chassis Design} from R.{Sir Henry Royce} Copy to By.{R.W. Bailey - Chief Engineer} Copy to Na.{Mr Nadin} Copy to Wor.{Arthur Wormald - General Works Manager} Copy to J.{Mr Johnson W.M.} Hy.{Tom Haldenby - Plant Engineer}137/4. R5/P 10. 7. 14. Ball Bearings. - Subject to end pressure. With reference to the ball bearings for end pressure, such as in front and back road wheels, our experiments have shown that the Skefko is not suitable for this purpose. Please therefore do not use any of these for any work we have to do, because in addition to this Mr. Bailey reports that they are considerably more noisyx than either the Hoffmann or the D.W.F. R.{Sir Henry Royce} x The best being the D.W.F. Deep Groove. 1528 | ||