Solid Edge Engineering Reference
Design And Calculation Report

Spur Gear

GENERAL INFORMATION
_________________________________________

Date Created: 2012/08/19 07:55:20 PM
Generated by: Dan
Author: 
Filename: 
Title: 
Document number: 
Revision number: 
Project name: 


STRENGTH VALIDATION: Pass

Standard: ISO

INPUT DESIGN CONDITIONS
_________________________________________

DESIGN INPUT PARAMETERS

GEAR PARAMETERS
Desired Gear Ratio: 2 
(al) Pressure Angle: 20.00 deg 
(bt) Helix Angle: 0.00 deg 
Module: 2.00 mm 
Helix Angle Direction: Left 
(r) Root Fillet: 0.20 mm 
Gear Accuracy: 1 
Application Factor: 1.2 
Pinion Mounting Constant: 0.8 
Roughness Factor: 1 

CALCULATION PARAMETERS
Efficiency: 0.92 

Pinion:  
No. of Teeth: 32 
(DM) Mounting Hole Diameter: 20.00 mm 
(b) Face Width: 32.00 mm 
Power: 1000.00 W 
Speed: 600.000 deg/s 
Size Factor For Contact: 1 
Size Factor For Bending: 1 

Gear:  
No. of Teeth: 64 
(DM) Mounting Hole Diameter: 20.00 mm 
(b) Face Width: 30.00 mm 
Size Factor For Contact: 1 
Size Factor For Bending: 1 

PINION MOUNTING CONSTANT

Pinion:  
Pitch of Bearing: 80.00 mm 
Move from Shaft Center: 8.00 mm 
Medium Shaft Diameter: 25.00 mm 

Gear:  
Pitch of Bearing: 80.00 mm 
Move from Shaft Center: 8.00 mm 
Medium Shaft Diameter: 25.00 mm 

MATERIAL PROPERTIES USED FOR CALCULATIONS
Pinion Material: User 
Contact Stress [ MPa ]: 1140 
Bending Stress [ MPa ]: 605 
Gear Material: User 
Contact Stress [ MPa ]: 1140 
Bending Stress [ MPa ]: 390 

MATERIAL PROPERTIES APPLIED TO THE MODEL

DESIGN INPUT OPTIONS
Type of Gearing: External Gearing 
Output Geometrical Parameters: Find Center Distance 
Strength Calculation Method: Based on Bending and Contact Stress 
Correction Method: Correct the Tooth Profile 
Load Calculation: Find Torque 
Correction Applied: To Gear Ratio 
Strength Calculation Type: Based on given Material Strength 
Face Width Values: User Specified 
Place with full Assembly Relation: Yes 


CALCULATE RESULTS
_________________________________________

OUTPUT DESIGN PARAMETERS

GENERAL RESULTS
Actual Gear Ratio: 2 
Total Unit Correction: 0 
Contact Ratio: 1.731 
Tangential Pressure Angle: 20.00 deg 
Operating Pressure Angle: 20.00 deg 
Tan. Operating Pressure Angle: 20.00 deg 
Base Helix Angle: 0.00 deg 
Product Center Distance: 96.00 mm 
Tangential Module: 2.00 mm 
(Pc) Circular Pitch: 6.28 mm 
Tangential Circular Pitch: 6.28 mm 
(Pb) Base Circular Pitch: 5.90 mm 
Corrected Root Fillet: 0.60 mm 

Pinion:  
Face Width Ratio: 0.5 
Unit Correction: 0 
Power: 1000.00 W 
Speed: 600.000 deg/s 
Torque: 95.493 N-m 

Gear:  
Face Width Ratio: 0.2344 
Unit Correction: 0 
Power: 920.00 W 
Speed: 300.000 deg/s 
Torque: 190.99 Nm

STRENGTH VALIDATION

Pinion:  
Allowable Bending Stress: 497.010 MegaPa 
Safety Factor in Bending: 1.96 
Allowable Pitting Stress: 996.840 MegaPa 
Safety Factor in Pitting: 1.38 

Gear:  
Allowable Bending Stress: 325.070 MegaPa 
Safety Factor in Bending: 1.24 
Allowable Pitting Stress: 996.840 MegaPa 
Safety Factor in Pitting: 1.39 

FORCES
Tangential Force: 2984155.183 mN 
Radial Force: 1086143.661 mN 
Normal Force: 3175671.615 mN 
Circumferential Velocity: 0.3351 m/s
Resonance Speed: 79173.136 deg/s 
Axial Force: 0.000 mN 

BASIC DIMENSIONS

Pinion:  
(db) Base Diameter: 60.14 mm 
(da) Outside Diameter: 68.00 mm 
(d) Pitch Diameter: 64.00 mm 
(dr) Root Diameter: 59.00 mm 
Work Pitch Diameter: 64.00 mm 
(T) Chordal Thickness: 2.77 mm 
(ht) Chordal Thickness Height: 1.49 mm 
(M) Chordal Dimension: 14.76 mm 
(S) Tooth Thickness: 4.75 mm 

Gear:  
(db) Base Diameter: 120.28 mm 
(da) Outside Diameter: 132.00 mm 
(d) Pitch Diameter: 128.00 mm 
(dr) Root Diameter: 123.00 mm 
Work Pitch Diameter: 128.00 mm 
(T) Chordal Thickness: 2.77 mm 
(ht) Chordal Thickness Height: 1.49 mm 
(M) Chordal Dimension: 14.76 mm 
(S) Tooth Thickness: 4.75 mm 

FACTORS OF ADDITIONAL LOAD

Pinion:  
Dynamic Factor: 1.002 
Face Load Factor: 1.078 
Transverse Load Factor: 1 

Gear:  
Dynamic Factor: 1.002 
Face Load Factor: 1.063 
Transverse Load Factor: 1 

FACTORS FOR CONTACT
Elasticity Factor: 189.81 
Zone Factor: 2.495 
Contact Ratio Factor: 0.8697 
Lubricant Factor: 0.9368 
Velocity Factor: 0.9334 
Helix Angle Factor: 1 
Work Hardening Factor: 1 

Pinion:  
Life Factor: 1 

Gear:  
Life Factor: 1 

FACTORS FOR BENDING
Helix Angle Factor: 1 
Contact Ratio Factor: 0.6832 

Pinion:  
Form Factor: 2.767 
Stress Correction Factor: 2.248 
Life Factor: 1 
Notch Sensitivity Factor: 1.369 

Gear:  
Form Factor: 2.648 
Stress Correction Factor: 2.287 
Life Factor: 1 
Notch Sensitivity Factor: 1.389 

GEARING PARAMETERS
Limit Deviation of Helix Angle: 0.00 mm 
Limit Deviation of Helix Axis Parallelity (Fx): 0.00 mm 
Limit Deviation of Helix Axis Parallelity (Fy): 0.00 mm 

GEAR PARAMETERS

Pinion:  
Limit Deviation of Axial Pitch: 0.00 mm 
Limit Deviation of Basic Pitch: 0.00 mm 

Gear:  
Limit Deviation of Axial Pitch: 0.00 mm 
Limit Deviation of Basic Pitch: 0.00 mm 


END OF REPORT