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06-04-2007  Spur Gearing Component Wizard  (Version 4.3.1048)
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--- Guide
External Gearing - ISO
Calculation of geometry: Calculates the center distance according to the module, number of teeth, correction and helix direction
Distribution of Correction: In Reverse Ratio
Load calculation: Calculates the torque according to the power and speed
Strength calculation: Strength check calculation

--- Basic Parameters
Desired Gear Ratio = 2.6667
Pressure Angle alpha = 20°
Addendum a* = 1 (= 2 mm)
Clearance c* = 0.25 (= 0.5 mm)
Root Fillet = 0.38 (= 0.76 mm)
Addendum of Basic Rack = 1.25 (= 2.5 mm)
Helix Angle beta = 0°
Module m = 2 mm
Center Distance aw = 66 mm
Product Center Distance a = 66 mm
Total Unit Correction = 0
Operating Pressure Angle alphaw = 20°
Circular Pitch  p = 6.283 mm
Base Circular Pitch ptb = 5.904 mm
Contact Ratio = 1.6386 (1.6386 + 0)

Precision Specification  6
Limit Deviation of Helix Angle Fb = 0.011 mm
Limit Deviation of Axis Parallelity fx = 0.011 mm
Limit Deviation of Axis Parallelity fy = 0.0055 mm

--- Gear 1
Number of Teeth = 18
Unit Correction = 0 (= 0 mm)
Pitch Diameter d = 36 mm
Base Circle Diameter db = 33.829 mm
Outside Diameter do = 40 mm
Root Diameter df = 31 mm
Work Pitch Diameter dw = 36 mm
Tooth Thickness s = 3.142 mm
Outside Tooth Thickness = 0.6817 (= 1.363 mm)
Facewidth = 32 mm
Facewidth Ratio = 0.8333
Chordal Thickness T = 2.774 mm 
                               
Chordal Thickness Height ht = 1.495 mm
Chordal Dimension M = 15.265 mm / 3 
                                    
Dimension Over (Between) Wires M = 39.138 mm 
                                             
Wire Diameter dw = 3 mm
Limit Circumferential Run-out Fr = 0.016 mm
Limit Deviation of Axial Pitch fpt = ±0.007 mm
Limit Deviation of Basic Pitch fpb = ±0.0066 mm

--- Gear 2
Number of Teeth = 48
Unit Correction = 0 (= 0 mm)
Pitch Diameter d = 96 mm
Base Circle Diameter db = 90.21 mm
Outside Diameter do = 100 mm
Root Diameter df = 91 mm
Work Pitch Diameter dw = 96 mm
Tooth Thickness s = 3.142 mm
Outside Tooth Thickness = 0.7729 (= 1.546 mm)
Facewidth = 30 mm
Facewidth Ratio = 0.3125
Chordal Thickness T = 2.774 mm 
                               
Chordal Thickness Height ht = 1.495 mm
Chordal Dimension M = 33.818 mm / 6 
                                    
Dimension Over (Between) Wires M = 99.139 mm 
                                             
Wire Diameter dw = 3 mm
Limit Circumferential Run-out Fr = 0.021 mm
Limit Deviation of Axial Pitch fpt = ±0.0075 mm
Limit Deviation of Basic Pitch fpb = ±0.007 mm

--- Load  (Gear 1;  Gear 2)
Power P = 1;   0.97 kW
Efficiency = 0.97
Speed n = 1000;   375 rpm
Torque Mk = 9.5493;   24.7008 Nm
Tangential Force Ft = 530.5165 N
Radial Force Fr = 193.0922 N
Axial Force Fa = 0 N
Normal Force Fn = 564.5638 N
Circumferential Velocity v = 1.885 m/s
Resonance Speed nE1 = 38283.41 rpm

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 Strength Check According to BACH
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--- Material Values
&Material designation: User;   User
Allowable Bending Stress SigmaAb = 100;   100 MPa

--- Results
Allowable Load Fall = 1306.9025;   1225.2211 N
Strength Factor S = 2.4635;   2.3095

Strength Check - True