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).
Test report on Bearing Material A.G.2, detailing its composition, clearance, and failure analysis.
Identifier | ExFiles\Box 115\1\ scan0323 | |
Date | 23th April 1937 guessed | |
Bearing Material A.G.2. Brinell No. 86.3 Composition. Silicon ........ 0.6% Tin ............ 1.2% Antimony ....... 0.9% Nickel ......... 2.0% Manganese ...... 1.0% Magnesium ...... 1.1% Remainder pure Aluminium. Clearance (cold) when fitted :- .003". Clearance (hot) last check prior to failure :- .0055". V.C.M. sleeve Brinell No.675. This bearing completed 4 hours endurance at 2100 lbs/sq.in. but failed whilst setting up to 2300 lbs/sq.in. Type of Failure. Solid seizure without warning. The material had picked up heavily on the sleeve. Total running time of bearing ...... 31 hours 23 minutes. | ||