Technical drawing for a hypoid pinion.
| Identifier | ExFiles\Box 98\1\ scan0115 | |
| Date | 3rd November 1937 | |
| File No. SH-3325 FOR CUTTING DATA SEE SUMMARY COPPER PLATE SHANK AND FRONT PROJECTION AS SHOWN CARB. 1700° (.035"-.045" CASE) 'QUENCH' FROM BOX FILE HARD DRAW AS SHOWN HYPOID PINION ± 1/64 Limit on Fractional Dimensions Break All Sharp Corners OFFSET .650" B.C. STAMP "G" MADE IN U.S.A. 10-43 ETCH N.Q. NOTE: THIS SURFACE TO- BE FINISH GROUND BY CUST. CUTTER MUST CLEAR NOTE: THIS END WILL BE RE-TURNED TAPER, SPLINED & RE-THREADED BY CUST. Dimensions and Labels from drawing: T.R. 1.015" +0.010 -0.000 .623" +0.010 -0.000 T.R. 1.591" +0.000 -0.010 6 1/16" +0 -1/64 3 29/64" 5/8" +0 -1/64 1/16" x 45° CHAMFER .995" +0.000 -0.002, 1-12 THDS PER INCH TR. {Capt. F. W. Turner - Finance} 1" x 60° CENTER 4/32" DR. BOTH ENDS .875" +0.000 -0.005 .050"R ±0.010 PROOF SPOT NO RUNOUT COPPER PLATE & DRAW T.R. 1.206" +0.000 -0.0005 S.GR. {George Ratcliffe} 1.191" +0.0005 -0.000 H.GR. {George Ratcliffe} 1.181" +0.000 -0.0005 MOUNT DIST. 4.525" TO APEX 4.729" GEAR C/L COPPER PLATE T.R. 1.088" +0.000 -0.000 S.GR. {George Ratcliffe} 1.073" +0.0005 -0.000 H.GR. {George Ratcliffe} 1.073" +0.000 -0.0005 FOR PROOF T.R. .336" +0.000 -0.002 S.GR. {George Ratcliffe} .333" +0.002 -0.000 H.GR. {George Ratcliffe} .330" +0.002 -0.000 S.G. 1/2" R 5/16" R 1/8" R 1.000" +.000 -.005 Bottom Table: For: ROLLS-ROYCE LTD. Teeth: 10 Pitch: Face Overall: - Pitch L: 14°18' Face L: 17°17' Patt. No.: - Out. Dia.: 2.737" +0.000 -0.005 Mat'l: SAE 4620 Forging Casing Brinell Limits Keyway Width Depth Keyway Across Bore Mate No.: GB/502 Teeth In Mate: 43 No. Req'd: - By: Falon Ch'k'd: Pauln Order No.: - Piece No.: GB2352 Rqd. in K.W. Corners: - GLEASON WORKS Rochester, N.Y. U.S.A. Date: NOV. 3 - 37 | ||
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).