AnsweredAssumed Answered

Involute gear tooth curve incorrect?

Question asked by Terry Raymond on Nov 13, 2020
Latest reply on Nov 13, 2020 by Roland Schwarz

In my gear model, I'm seeing the curve that Solidworks is generating is not accurate.  Perhaps I am doing something wrong.

 

Line perpendicular from any point on the involute curve should be tangent to the base circle.  Yet when I check with a line perpendicular to the generated curve, it does not intersect the base circle. Tip is off by ~2% which is significant for gears.

 

Can anyone see what I need to change to fix this?  Thanks much!

 

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