catia gear design with sketch explanation,How to make Spur gear in catia with parameters formula
GEAR CALCULATION FOR 20DEG PRESSURE ANGLE:
NO. OF TEETH N=25
MODULE m=3.5
PITCH CIRCLE RADIUS Rp=m*N/2
CLEARANCE CIRCLE RADIUS Rb=0.94*Rp
ADDENDUM CIRCLE RADIUS Ra=Rp+m
DEDENDUM CIRCLE RADIUS Rd=Rp-1.25*m
FILLET RADIUS Rf=0.39*m
ANGLE = 90/N * 1deg
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