COMPOSITE GEAR AND METHOD OF MANUFACTURING THE SAME

摘要

A composite gear, wherein external gears and rotation support surfaces are formed on the outer peripheral surface thereof and a first internal gear and a second internal gear are formed on the inner peripheral surface thereof at a specified interval in the rotating axis direction. A chuck part is formed on the inner peripheral surface between the first internal gear and the second internal gear, and the inner diameter of the chuck part is smaller than at least one of the diameter of the tip of the first internal gear and the diameter of the tip of the second internal gear.