Parametric involute spur gear

PTC Creo Elements Rendering Other By Edmundo Fuentes on 25 Nov 22:41 in Machine design

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parametric_gear_less_deddendum.prt.3 1.1 MB V1 by Edmundo Fuentes over 1 year ago parametric_gear_more_deddendum.prt.3 1.4 MB V1 by Edmundo Fuentes over 1 year ago

This is a plain and completely parametric model of involute gears. It's meant to serve as a base for further gear customization.

To modify it, go to Tools > Parameters.. from there, you can change the parameters' values:
Pd - Pitch Diameter
Phi - Pressure Angle
k1 - Addendum Ratio (a = k1/Pd)
k2 - Deddendum Ratio (d = k2/Pd)
N - Number of Teeth
Thickness - Disk Thickness

I've included two slightly different models. One works when Rd > Rb and the other when Rd < Rb. If the model throws an error with the parameters you've set, then switch to the other model.
Rd = N/(2*Pd) - k2/Pd
Rb = [N/(2*Pd)]*cos(Phi)