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12-09-2003  Spur Gearing Component Wizard  (Version 4.2.1032)
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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 = 2.7
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 = 54 mm
Product Center Distance a = 54 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 = 1.6277 (1.6277 + 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 = 24
Unit Correction = 0 (= 0 mm)
Pitch Diameter d = 48 mm
Base Circle Diameter db = 45.105 mm
Outside Diameter do = 52 mm
Root Diameter df = 43 mm
Work Pitch Diameter dw = 48 mm
Tooth Thickness s = 3.142 mm
Outside Tooth Thickness = 0.7156 (= 1.431 mm)
Facewidth = 32 mm
Facewidth Ratio = 0.6667
Chordal Thickness T = 2.774 mm 
                               
Chordal Thickness Height ht = 1.495 mm
Chordal Dimension M = 15.433 mm / 3 
                                    
Dimension Over (Between) Wires M = 51.138 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 = 30
Unit Correction = 0 (= 0 mm)
Pitch Diameter d = 60 mm
Base Circle Diameter db = 56.382 mm
Outside Diameter do = 64 mm
Root Diameter df = 55 mm
Work Pitch Diameter dw = 60 mm
Tooth Thickness s = 3.142 mm
Outside Tooth Thickness = 0.7374 (= 1.475 mm)
Facewidth = 60 mm
Facewidth Ratio = 0.5333
Chordal Thickness T = 2.774 mm 
                               
Chordal Thickness Height ht = 1.495 mm
Chordal Dimension M = 21.505 mm / 4 
                                    
Dimension Over (Between) Wires M = 63.139 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;   800 rpm
Torque Mk = 9.5493;   11.5785 Nm
Tangential Force Ft = 397.8874 N
Radial Force Fr = 144.8192 N
Axial Force Fa = 0 N
Normal Force Fn = 423.4229 N
Circumferential Velocity v = 2.5133 m/s
Resonance Speed nE1 = 25749.98 rpm

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

--- Results
Allowable Load Fall = 1306.9025;   2613.8051 N
Strength Factor S = 3.2846;   6.5692

Strength Check - True