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).
Inspection report detailing the condition and wear of Gearbox 35.EX. and associated components.
| Identifier | ExFiles\Box 92\3\ scan0297 | |
| Date | 3rd June 1937 | |
| - 6 - HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth}1/VS.{J. Vickers}3.6.37. Gearbox 35.EX. incorporating Actuating Gear LOP.G.82818. 1st and 3rd Motion Shaft LOP.G.83179 (Cadillac Gears). 2nd Motion Shaft LOP.G.83180 (Cadillac Gears). Reverse Gears, Speedometer Drive and Servo Drive to LOP.'s G.83181, G.81774 and G.82821 respectively. The general condition of this box was good, though excessive backlash had developed in the gears. This backlash and other important measurements are shown on chart Ex.I.167. herewith. The bronze bush, G.82424 (measurements on Ex.I.167) on the end of the 3rd motion shaft G.84779, was in better condition than is usual. The M.I.993 bearing in the centre of this shaft had been turning, but had not caused any wear on the shaft. 2ND MOTION SHAFT - OUTER DRIVING MEMBER G.84765 - SLIGHT CRACK - SEE EX.I.175. Ex.25427, strengthened washer on the front of the 2nd motion shaft, had worn .004". G.81715, distance piece, had worn .005". Special L.D.J.T. 1 1/8 bearing - inner race a free fit on coupling sleeve Ex.25328 on which it had been turning, but was in good condition. Slight flats had been worn on the teeth of G.82479, 1st speed driven gear, and the teeth of the 1st speed driven gear, G.82743, were slightly scored. The teeth of the reverse shaft G.83126 driven gear, were also scored and slightly chipped on the leading edges. The box has been crack-tested and was found to be O.K. All other items apart from those mentioned above were in good condition and wear was normal. Servo Motor Mechanism LOP.G.83295, ex 6 H.S. box. This was in good condition throughout. Wear on the outer friction lining was .014" and on the inner .005". There was no undue wear apparent on any of the parts and the friction damper had maintained its poundage. continued. | ||