This page displays a 4 page sample data sheet for (1) No. 26 Gear Finishing,
(2) No. 26 pinion finishing, (3) Gear Roughing, and (4) Pinion Roughing.
Dimensions are repeated in each sheet.
Bias Corrections may be optionally printed and are shown in the last section of this sample.
Download the demo version from this website and try it out.
Hypoid Bevel Data Set No. 40261694 Date: 05/15/11 Page 1
Comb. 10 X 41 DP 4.97000 Pinion Offset 1.500 BC
Face Width 1.250
Gear PA - Concave 24D 30M Convex 18D 0M Cone Dist. 4.274
------------------------------------------------------------------------
NO. 26 MACHINE SETTINGS FOR GEAR MEMBER
Shaft Angle: 90
GENERAL DIMENSIONS
GEAR PINION GEAR PINION
Spiral Angle 26D 57M 50D 29M Cutting Method Spread Fixed
Addendum 0.064 -
Working Depth 0.375 Backlash Allowed 0.006 / 0.008
Whole Depth 0.422
Pitch Angle 74D 49M - Tooth Taper Tilted Root
Face Angle 75D 59M 19D 17M
Root Angle 69D 7M 12D 52M
Dedendum Angle 5D 42M -
Outside Diameter 8.283 3.386
Crown To Cross Pt 1.293 3.907 GEAR TOOTH MEASURED AT MID FACE
Root Apex (+) Beyond (-) Between
Crossing Pt -0.16 1.56 Rough Finish
Hand of Spiral RIGHT LEFT Norm Chord Adden 0.0511 0.0511
Norm Chord Thick 0.1889 0.1589
Whole Depth Mid 0.3476 0.3476
Whole Depth Heel 0.4221 0.4221
GEAR CUTTER SPECIFICATIONS
Diameter 9.000 Edge Radius 0.040
Point Width Pressure Angle
Rough & Finish 0.0600 OB 24D 30M
IB 18D 0M
NO. 26 GEAR MACHINE SETTINGS
FINISHING
Mach Root Angle 69D 7M
Mach Center to Back MD -0.240
Sliding Base WITH 0.070
Blank Offset DN 0.225
Eccentric Angle 35D 26M
Cradle Angle 354D 54M
Tilt Angle 0
Cradle Test Roll 30 Deg
Work Test Roll 29D 57M
Nc/75 Decimal Ratio 0.545665
Nc/75 Ratio Gears Lookup
Index Gears (30/N) 60/41X45/90
Hypoid Bevel Data Set No. 40261694 Date: 05/15/11 Page 2
Comb. 10 X 41 DP 4.97000 Pinion Offset 1.500 BC
Face Width 1.250
Pinion PA - Concave 18D 0M Convex 24D 30M Cone Dist. 4.274
------------------------------------------------------------------------
NO. 26 PINION FINISHING MACHINE SETTINGS Shaft Angle: 90
GENERAL DIMENSIONS
GEAR PINION GEAR PINION
Spiral Angle 26D 57M 50D 29M Cutting Method Spread Fixed
Addendum 0.064 -
Working Depth 0.375 Backlash Allowed 0.006 / 0.008
Whole Depth 0.422
Pitch Angle 74D 49M - Tooth Taper Tilted Root
Face Angle 75D 59M 19D 17M
Root Angle 69D 7M 12D 52M PINION FINISH SLOT WIDTHS
Dedendum Angle 5D 42M - Heel Mid Toe
Outside Diameter 8.283 3.386 0.090 0.088 0.077
Crown To Cross Pt 1.293 3.907
Root Apex (+) Beyond (-) Between PINION TOOTH MEASUREMENTS-MID FACE
Crossing Pt -0.16 1.56 Addendum Thickness
Hand of Spiral RIGHT LEFT 0.2534 0.3166
No Modified Roll Used
NO. 26 PINION CUTTER SPECIFICATIONS
Nom Dia 9.000 Edge Radius 0.025
Point Width Pressure Angle Cutter Dia
Finish 0.0400 OB 12D 0M 8.860
IB 31D 0M 8.830
NO. 26 PINION FINISHING MACHINE SETTINGS
Concave OB Convex IB
Mach Root Angle 12D 52M 12D 52M
Mach Center to Back MD -0.075 MD -0.164
Sliding Base WITH 0.364 WITH 0.384
Blank Offset DN 1.110 DN 1.561
Eccentric Angle 34D 26M 37D 5M
Cradle Angle 194D 7M 199D 56M
Cradle Test Roll 20 Deg 20 Deg
Work Test Roll 80D 25M 82D 29M
Nc/75 Decimal Ratio 0.536120 0.549925
Nc/75 Ratio Gears Lookup Lookup
Index Gears (30/N) 100/50X90/60
Profile Pattern L Delta íRo Desired Gear
(Kp) Factor (B) (Ep) Root PA
OB 4.00 0.350 -.1653 13D 1M Convex (í1) 16D 21M
IB 5.00 0.350 0.2864 -29D 22M Concave (í2) -26D 9M
Hypoid Bevel Data Set No. 40261694 Date: 05/15/11 Page 3
Comb. 10 X 41 DP 4.97000 Pinion Offset 1.500 BC
Face Width 1.250
Gear PA - Concave 24D 30M Convex 18D 0M Cone Dist. 4.274
------------------------------------------------------------------------
NO. 26 ROUGHER MACHINE SETTINGS FOR GEAR
Shaft Angle: 90
GENERAL DIMENSIONS
GEAR PINION GEAR PINION
Spiral Angle 26D 57M 50D 29M Cutting Method Spread Fixed
Addendum 0.064 -
Working Depth 0.375 Backlash Allowed 0.006 / 0.008
Whole Depth 0.422
Pitch Angle 74D 49M - Tooth Taper Tilted Root
Face Angle 75D 59M 19D 17M
Root Angle 69D 7M 12D 52M
Dedendum Angle 5D 42M -
Outside Diameter 8.283 3.386
Crown To Cross Pt 1.293 3.907 GEAR TOOTH MEASURED AT MID FACE
Root Apex (+) Beyond (-) Between
Crossing Pt -0.16 1.56 Rough Finish
Hand of Spiral RIGHT LEFT Norm Chord Adden 0.0511 0.0511
Norm Chord Thick 0.1889 0.1589
Whole Depth Mid 0.3476 0.3476
Whole Depth Heel 0.4221 0.4221
NO. 26 GEAR MACHINE SETTINGS
ROUGHING
Mach Root Angle 69D 7M
Mach Center to Back MD -0.240
Sliding Base WITH 0.070
Blank Offset DN 0.225
Eccentric Angle 35D 26M
Cradle Angle 354D 54M
Tilt Angle 0
Cradle Test Roll No Roll
Work Test Roll No Roll
Nc/75 Decimal Ratio 0.545665
Nc/75 Ratio Gears Lookup
Index Gears (30/N) 60/41X45/90
GEAR CUTTER SPECIFICATIONS
ROUGH FINISH
Diameter 4.500 4.500
Point Width 0.0600 0.0900
Blade Radius 0.0400 0.0400
Pressure Angle
OB #0 - 24D #0 - 24D
IB #0 - 18D #0 - 18D
Hypoid Bevel Data Set No. 40261694 Date: 05/15/11 Page 4
Comb. 10 X 41 DP 4.97000 Pinion Offset 1.500 BC
Face Width 1.250
Pinion PA - Concave 18D 0M Convex 24D 30M Cone Dist. 4.274
------------------------------------------------------------------------
NO. 26 ROUGHER MACHINE SETTINGS FOR PINION
Shaft Angle: 90
GENERAL DIMENSIONS
GEAR PINION GEAR PINION
Spiral Angle 26D 57M 50D 29M Cutting Method Spread Fixed
Addendum 0.064 -
Working Depth 0.375 Backlash Allowed 0.006 / 0.008
Whole Depth 0.422
Pitch Angle 74D 49M - Tooth Taper Tilted Root
Face Angle 75D 59M 19D 17M
Root Angle 69D 7M 12D 52M
Dedendum Angle 5D 42M -
Outside Diameter 8.283 3.386
Crown To Cross Pt 1.293 3.907
Root Apex (+) Beyond (-) Between
Crossing Pt -0.16 1.56
Hand of Spiral RIGHT LEFT
NO. 26 PINION CUTTER SPECIFICATIONS
Diameter 9.000 Edge Radius 0.025
Point Width Pressure Angle
Rough 0.0600 OB 14D 0M
IB 28D 30M
NO. 26 PINION ROUGHING MACHINE SETTINGS
Mach Root Angle 12D 52M
Mach Center to Back MD +1.520
Sliding Base WITH 0.357
Blank Offset DN 1.253
Eccentric Angle 35D 46M
Cradle Angle 197D 28M
Cradle Test Roll 20 Deg
Work Test Roll 81D 33M
Nc/75 Decimal Ratio 0.543627
Nc/75 Ratio Gears Lookup
Index Gears (30/N) 100/50X90/60
The following section displays sample proportional settings for pinion.
See help screen in demo for explanation and useage.
Hypoid Bevel Data Set No. 40261694 Date: 05/15/11 Page 1 of 1
Comb. 10 X 41 DP 4.97000 Pinion Offset 1.500 BC
Face Width 1.250
Pinion PA - Concave 18D 0M Convex 24D 30M Cone Dist. 4.274
------------------------------------------------------------------------
BIAS CHANGES FOR NO. 26 PINION FINISHING SETTINGS
(see documentation for purpose and application of bias changes)
BIAS OUT I OB IB
For Change in Work Test Roll -1.0 Deg +1.0 Deg
Change:
Machine Center to Back ADV 0.062 WITH 0.065
Sliding Base WITH 0.014 ADV 0.014
Eccentric Angle, Minutes 2 Min 1 Min
Cradle Angle, Minutes -51 Min 51 Min
Ratio of m75 Ratio Change Gears -0.0067 0.0067
PROFILE OUT CHANGE
For Change in Blank Offset -0.100 UP +0.100 DWN
Change:
Eccentric Angle, Minutes -53 Min 54 Min
Cradle Angle, Minutes -31 Min 25 Min
Work Test Roll -2D 6M 1D 53M
Ratio of m75 Ratio Change Gears -0.0140 0.0126
CUTTER DIAMETER CHANGE (Lengthen)
For Change in Cutter Diameter -0.100 +0.100
Change:
Eccentric Angle, Minutes -18 Min 17 Min
Cradle Angle, Minutes 23 Min -23 Min