Plastic gear and method of producing the same

摘要

A plastic gear is provided which includes a main body portion and a toothed portion. The main body portion is made of a synthetic resin containing reinforcement fibers. The toothed portion is made of a synthetic resin which is the same as the synthetic resin of which the main body portion is made except that it does not contain any reinforcement fibers. A method of producing such a plastic gear is also provided.