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).
Cross-section and particulars of a 1937 Oldsmobile Gear Box.
| Identifier | ExFiles\Box 126\1\ scan0094 | |
| Date | 5th May 1938 guessed | |
| PARTICULARS OF GEARS. GEAR 'A'. Nº OF TEETH 17 P.C.D - 2.9862 D.P. - 8 R.H. SPIRAL ANGLE - 44º-36' º/DIA. 3.192 GEAR 'B' Nº OF TEETH 35 P.C.D - 4.6309 R.H. D.P - 8 SPIRAL ANGLE - 19º-15' º/DIA - 4.822 GEAR 'C' Nº OF TEETH - 24 P.C.D - 3.8049 R.H. D.P - 8. SPIRAL ANGLE - 38º-5' º/DIA - 4.015 GEAR 'D' Nº OF TEETH - 20 P.C.D - 3.5125 L.H. D.P - 8 SPIRAL ANGLE - 44º-36' º/DIA - 3.720 GEAR 'E' Nº OF TEETH - 14 P.C.D - 1.8610 L.H. D.P - 8. SPIRAL ANGLE 37º-20' º/DIA - 2.175 GEAR 'F' Nº OF TEETH 17 L.H. P.C.D - 2.695 D.P - 8 SPIRAL ANGLE - 38º-5' º/DIA. 2.896 FIRST SPEED SLIDING GEAR. THIRD SPEED SYNCHRONISER. OUTER CONE BRONZE, 30 LONGITUDINAL GROOVES 1/16 WIDE, CONE 2 5/8 DIA. LARGE END, 9º ANGLE. LIGHTLY THREADED 48 T.P.I' CONSTANT MESH NEW DEPARTURE BEARING Nº 3207 (SEALED) DETENT SPRING, WHICH LOCATES CONES. FRONT. NEEDLE ROLLER SNAP RING FLAT SPRING RETAINING RING SLIDING SLEEVE. CONSTANT MESH 1ST SPEED. INVOLUTE SPLINES FLAT-ANTI RATTLE SPRINGS (NOT SHOWN) SEE SKETCH FOR FURTHER PARTICULARS. OUTER CONE BRONZE, 39 LONGITUDINAL GROOVES, 1/16 WIDE, CONE 3 1/4 DIA. LARGE END, 9º ANGLE. LIGHTLY THREADED 48 T.P.I." OIL SHIELD NEW DEPARTURE BEARING Nº 3206 2ND SPEED. END THRUST IS TAKEN ON THIS WASHER WHICH BEDS ON RUN-OUT OF SPLINES FIRST & REVERSE SELECTOR SECOND & TOP SELECTOR THIS SHAFT IS SLOTTED AT END, & HELD INTO POSN BY END COVER DETAIL OF THIS BUSH IS SIMILAR TO REVERSE SHAFT BUSH- SEE EXS OIL SCOPE SPOT WELDED. 1937 OLDSMOBILE GEAR BOX. SEE EXS 416 FOR FURTHER DETAILS. MATERIAL C.I. Exs.417 | ||