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).
Gleason's hypoid axle and the metallurgy of gear sets.
| Identifier | ExFiles\Box 136\5\ scan0252 | |
| Date | 9th May 1930 | |
| X2066. To: Worr C. Rg{Mr Rowledge} C. Hy{Tom Haldenby - Plant Engineer} C. By C. Hs.{Lord Ernest Hives - Chair} From: Oy. Oy7/DM.{D. Munro}9.5.30. Rear Axle. In reply to my cable regarding advice from Gleason's on hypoid axle, Springfield cables :- "GRAY OF GLEASONS ON AQUITANIA SAILED TODAY MAY SEVENTH WILL CALL DERBY" I imagine we can expect him here about May 18th, as Mr. Ross will have told them the urgency of the matter. Just as a suggestion, though I do not know what Gleason's practice is on hypoid gears I know that on our bevels they use slightly dissimilar metals, 5% nickel on pinion, 3 1/2% nickel on gear. Curtiss on their herringbone reduction gears also use dissimilar metals, Nitralloy on gear and 3 1/2% nickel on pinion. Oy. Maurice Olley | ||