Team Panthera - The following are the important dimensions and geometries concerned with toothed gear: Pitch Circle : Pitch circle is the apparent circle that two gears can be taken like smooth
![Gear Terminology: Pitch circle, Pitch circle diameter, Pitch point, Pitch surface, Pressure angle or angle of obliquity, Addendum, Dedendum, Addendum circle, Dedendum circle - MECHTECH GURU Gear Terminology: Pitch circle, Pitch circle diameter, Pitch point, Pitch surface, Pressure angle or angle of obliquity, Addendum, Dedendum, Addendum circle, Dedendum circle - MECHTECH GURU](https://1.bp.blogspot.com/-fw0OmLOrFJc/Xzayg1IlXLI/AAAAAAAAEdE/bAWqbzMaOVIM8xIHXeeEDCsgAKLw0MkjACLcBGAsYHQ/s457/g1.png)
Gear Terminology: Pitch circle, Pitch circle diameter, Pitch point, Pitch surface, Pressure angle or angle of obliquity, Addendum, Dedendum, Addendum circle, Dedendum circle - MECHTECH GURU
![Influence of the addendum modification on spur gear back-side mesh stiffness and dynamics - ScienceDirect Influence of the addendum modification on spur gear back-side mesh stiffness and dynamics - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0022460X16306800-gr1.jpg)