Parametric design of straight spur gears based on Pro/E

The variety of gears is various, and the gears' structures and sizes needed in different situations are unlike, so the conventional development couldn't satisfy the marketable requirement already. According to the analysis of straight spur gear's structure, parametric 3D modeling and secondary development based on Pro/e are carried through, and then realized the gear's parametric 3D design. Thus, improved design efficiency of the gear, reduced designer's duplicate work and the cost.