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).
Visit to Federal Mogul regarding their cadmium bearings, detailing composition, manufacturing processes, and performance claims.
| Identifier | ExFiles\Box 173\4\ img129 | |
| Date | 27th April 1935 | |
| HOTELS NEW YORKER & LEXINGTON, NEW YORK - NETHERLAND PLAZA, CINCINNATI - VAN CLEVE, DAYTON K.W. Please circulate to usual people Rm{William Robotham - Chief Engineer} by WB{Mr Brazier/Mr Bell} by Ady Also to R.H.C, C.T.S. Book-Cadillac Hotel DETROIT Ralph Hitz, President 27/4/35 To H.S. I went yesterday to Federal Mogul who make cadmium bearings for the Graham. They were rather sticky and not giving away any information but were willing to make us out of shells for test. They did tell me the composition is 0.5% Silver 0.75% Copper & the rest Cadmium. The Tin content must not exceed 0.3%. Centrifugal casting is used but for Flanged bearings our ordinary white-metal process is adequate. How to prevent bad adhesion they were not giving away. The metal is cast at 800°F.{Mr Friese} How to bond it on steel shells was not forthcoming. They do not advocate Flanged bearings mainly because of cheapness & melting loss which subsequently is poured off the strip bearing. They claim the coefficient of friction 80% that of white-metal & a reduction in oil consumption of about 10%. Their parting remark "Do not change to Cadmium if without a satisfactory make" may have its significance. Their chassis contain many bad ideas with bad side and not good ones as G.M. Research insist. | ||