Blueprint of a Hypoid Gear with associated manufacturing specifications.
| Identifier | ExFiles\Box 98\1\ scan0168 | |
| Date | 3rd August 1939 | |
| HYPOID GEAR ±1/64 Limit on Fractional Dimensions Break All Sharp Corners COPPER PLATE (PROTECT TEETH) CARB. 1700° QUENCH FROM BOX FILE HARD GB5355 Cutting particulars now apply to Remaining models 1000 File No. 8 PINION OFFSET .650" B.C. ¢ PINION 3/32" R 1/8" R .986" +.000 -.002 2.350" MOUNT DIST STAMP:- MADE IN U.S.A. 5/16" DRILL, 5/16" DEEP 1 DRIVER HOLE 1/4" R 3/16" R BR 4.995" +.001 -.000 GR {George Ratcliffe} 5.000" +.0003 -.000 3 3/16 R 1/8 x 45° 5/16 x 45° 5/32 For: ROLLS ROYCE LTD. Forging Brinell Limits 163-217 No. Req'd Order No. By: Noth Ch'k'd: ANDERSON Date: Aug 3, 1939 Teeth: 48 Pitch: ∠71°38' Keyway Width: -- Pitch: 5.059 Face: ∠73°4' Depth K.W. Across Bore Rad. in K.W. Corners Face: 1 1/16" Out. Diam.: 8.571" +.000 -.005 Mate No.: GB4994 GLEASON WORKS Piece No.: GB4995 Overall: 1.332" Mat'l: SAE 4620 Teeth In Mate: 13 ROCHESTER, N. Y. U. S. A. {Mr Adams} FORM G.D. 699-1000-5-7-6-DIETZGEN CO. 152H | ||
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).