Spur Gear Strength Calculation With Legacy ANSI
Based on the fixed-end beam calculation. Includes the majority of effects.
Safety factor of contact fatigue
where:
S fe | contact fatigue limit (material property) | |
F t | tangential force acting at teeth | |
b w | operating tooth width | |
d 1 | pitch diameter of pinion |
Safety factor of bending fatigue
where:
S n | bending fatigue limit (material property) | |
P | diametral pitch (module inverse value) | |
b wF1,2 = min (b 1,2 , b w + 2m) | tooth width for bending |
Factor calculations
where:
