Abstract
Recently, low noise gears without lubrication are required for business machines and robots, because they are used in open space. The present article provides a new type gear consisting of steel and resin (called Delrin-100), which has good lubrication characteristics. Production processes are presented for the gear, and its characteristics are investigated. It is ascertained that the strength of our gear is greater than that of a plastic gear, and noise of our gear is small in comparison with plastic gears. The design method is presented, and effects of friction on the position control is also investigated.
