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).
Low-temperature experiment on solid Hall's metal bearings fitted to a Bentley crankshaft and crankcase.
| Identifier | ExFiles\Box 114\2\ scan0247 | |
| Date | 12th December 1935 | |
| X1020 To WOP. c. to L. c. to Hl. c. to By.{R.W. Bailey - Chief Engineer} c. to M.D. Hs{Lord Ernest Hives - Chair}/Smth.4/KW.12.12.35. Solid Hall's Metal Bearings. We have fitted a section of a Bentley crankshaft and crankcase with solid Hall's metal bearings and lowered the temperature of the assembly to 13°F.{Mr Friese} (- 10½°C.) at the Cold Storage Works. The big end clearance was .0018" and the main bearing .0025" (standard white metal). Both the big end and main bearings tightened up noticeably, but not to the same extent as a dural rod under the same conditions. We think that the bearings would be satisfactory in an engine at this temperature from the point of view of cold starts. If the bearings are satisfactory on test we shall repeat the low temperature experiment in a Cold Chamber Hs{Lord Ernest Hives - Chair}/F.Ll.Smith. | ||