Method of manufacturing asymmetric gear, asymmmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine

摘要

An object of the present invention is to provide a practical gear and gear train which can be used in an actual gear drive system. Another object of the present invention is to provide a non-circular and asymmetrical gear which is practically used in view of durability, a gear train using that gear, and a barrel finishing machine using that gear. Non-circular and asymmetrical gear 10 has a plurality of tooth profiles 20 in which an addendum circle 16 of a substantially semicircular shape is connected to a dedendum circle 18 of a substantially semicircular shape. A center point 22 of the addendum circle 16 is on a pitch line 24, and a center point 26 of the dedendum circle 18 lies inside the pitch line 24.