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).
Summary sheet of specifications for Hypoid Gears, Summary No. 1000, from Gleason Works.
Identifier | ExFiles\Box 98\1\ scan0171 | |
Date | 8th August 1939 | |
CONCAVE (GEAR TOOTH BEARING) HYPOID GEARS SUMMARY NO. 1000 GLEASON WORKS ROCHESTER, N. Y., U. S. A.{Mr Adams} M'F'G.{Mr Griffiths - Chief Accountant / Mr Gnapp} SOFT OFFSET LAP PINION SETTINGS DEVELOPED SETTINGS FOR ROLLS ROYCE, LTD. COMBINATION 13x43 DRIVE PRESSURE V 18° 15' REVERSE PRESSURE V 24° 16' PINION SPIRAL V 45° 11' GEAR SPIRAL V 35° 37' CONE DISTANCE 4.478" GEAR FACE 1 3/16 D.P. 5.059 OFFSET OF PINION .650" BELOW CENTER GENERAL DIMENSIONS NO. | ITEM | PINION | GEAR 1 | PART NUMBER | GB4994 | GB4995 2 | REF. B. P. NUMBER 3 | ADDENDUM | | .113" 4 | WORKING DEPTH | | .321" 5 | WHOLE DEPTH | .364" | .362" 6 | FACE ANGLE | 21° 17' | 73° 4' 7 | PITCH ANGLE | 18° 35' | 71° 38' 8 | ROOT ANGLE | 16° 43' | 68° 27' 9 | DEDENDUM ANGLE | | 3° 11' 10 | OUTSIDE DIAMETER | 3.375" | 8.571" 11 | CONE CENTER TO CROWN | 4.332" | 1.305" 12 | CONE CENTER TO BACK | 4.682" | 2.291" 13 | NORMAL CHORD. ADDEN. | *.185" | *.098" 14 | NORMAL CHORD. THICK. | *.259" | *.180" 15 | HAND OF SPIRAL | L | R 16 | CUTTING METHOD | FIXED SETTING | SPREAD BLADE 17 | MOUNTING DISTANCE | 4.525" | 2.350" 18 | SOFT MOUNTING DISTANCE | 4.528" 19 | DRIVER PINION | ROTATION C.W. GEAR SETTINGS ROUGHING CUTTER SPECIFICATIONS NO. 20 | DIAMETER 9" | POINT WIDTH .050".025"R NO. 21 | CUTTER AXIAL POSITION SLIDING BASE POS. | 18° 0' | 24° 0' | A .005" 15" SPIRAL BEVEL ROUGHER SETTINGS NO. 22 | MACH. ROOT ∢ | 68° 27' NO. 23 | HORIZONTAL | OUT 1.796" NO. 24 | ANGULAR | UP 16° 21' FINISHING CUTTER SPECIFICATIONS NO. 25 | CUTTER NUMBER | #4 1/2-17 1/2 I, 28°-0 NO. 26 | FINISHING CUTTER DIAM. | 9" NO. 27 | FINISHING POINT WIDTH | .090".025"R 15", No.16 SPIRAL GENERATOR SETTINGS NO. 28 | MACHINE ROOT V | 68° 27' NO. 29 | HORIZONTAL (15") | OUT 1.305" NO. 30 | VERTICAL (15") | UP 3.658" | RADIAL (#16) | 3.884" | CRADLE ANGLE (#16) | 70° 22' | MACH. CENTER TO BACK | 2.401" | CUTTER AXIAL POS. SLIDING BASE | A .102" | RATIO CHANGE GEARS Nc/75 3/10 | DR. 48 STUD 90 DN. 56 | DR. 58 STUD DN. 74 | DR. 97 STUD DN. 100 | TEST ROLL | 30° CRADLE | 51° 53' WORK. ROUGHING ROUGHING CUTTER SPECIFICATIONS NO. 32 | DIAMETER 9" FT. WIDTH .050:.025R | IN. BLADE V 28°-0 | OUT. BL. V 14°0' NO. 33 | MACHINE ROOT ANGLE | 16° 43' NO. 34 | CUTTER AXIAL LOCATION SLIDING BASE POS. | ADVANCE .005" NO. 35 | MACH. CENTER TO BACK | 4.707" 15" SPIRAL BEVEL ROUGHER SETTINGS NO. 36 | HORIZONTAL | OUT 1.239" NO. 37 | ANGULAR | DOWN 14° 7' 15", No.16 HYPOID GENERATOR SETTINGS NO. 38 | HORIZONTAL | OUT .846" NO. 39 | VERTICAL | DOWN 3.172" NO. 40 | OFFSET OF BLANK | 0 NO. 41 | RADIAL | 3.283" NO. 42 | CRADLE ∢ | 284° 56' | RATIO CHANGE GEARS Nc/75 9/10 | DR. 63 STUD 70 DN. 69 | DR. 48 STUD 65 DN. 66 | DR. 67 STUD DN. 91 | TEST ROLL | 20° CRADLE | 62° 44' WORK 15" HYPOID GENERATOR FINISHING | | BOTTOM | TOP NO. 43 | MACHINE ROOT ∢ | 16° 43' | 17° 3' NO. 44 | MACH. CENTER TO BACK | 4.398" | 4.683" NO. 45 | CUTTER NUMBER | #21-17 1/2 O.B. | #36-25 I.B. NO. 46 | POINT DIAMETER (.025" BLADE RADIUS) | 8.680" | 9.200" NO. 47 | OFFSET OF BLANK | DOWN .757" | DOWN .589" NO. 48 | CUTTER AXIAL LOCATION | WITHDRAW .165" | WITHDRAW .231" NO. 49 | HORIZONTAL | OUT .717" | OUT 1.740" NO. 50 | VERTICAL | DOWN 3.660" | DOWN 2.953" NO. 51 | CUTTER SPINDLE V | IN 0° 41' | IN 2° 34' NO. 52 | CUTTER COLUMN V | DOWN 0° 43' | IN 2° 27' | RATIO CHANGE GEARS | DRIVER 80 STUD 54 | DRIVEN | DRIVER 48 STUD 68 | DRIVEN | CHANGE GEARS | 69 97 | | 77 51 | | TEST ROLL | CRADLE 20° WORK 70° 15' | CRADLE 20° WORK 71° 3' V & H CHECK SOFT GEAR WITH SOFT PINION | | BOTTOM | TOP | | TOE | HEEL | TOTAL | TOE | HEEL | TOTAL | V | +9 | -11 | 20 | V | -6 | +20 | 26 | H | -10 | +14 | 24 | H | +4 | -28 | 32 BACKLASH ALLOWANCE .004"-.006" CUSTOMER'S ORDER NO. | SALES ORDER NO. | NO. OF PAIRS | DATE 2324 | AD4310 | 1 SOFT 3 HARD | JULY 25/1939. MADE OUT BY Fudak | DATE aug 8, 1939 | CHECKED BY W. Jones * MEASUREMENT AT MIDDLE OF FACE FORM EO 324 | ||