INJECTION MOLDED ARTICLE, RESIN-MADE SLIDING BEARING, RESIN-MADE GEAR, RESIN-MADE CROWN-SHAPED CAGE, RESIN-MADE SEAL AND ROLLING

摘要

It is an object of the present invention to provide an injection-molded article such as a resin-made cage, a resin-made seal, a resin-made sliding bearing, and a resin-made gear having reliable flowability, enhanced mechanical strength and toughness, and improved wear resistance. A resin composition is composed of a biodegradable polyester polymer particularly polybutylene succinate to which not less than 10 wt % nor more than 40 wt % of a fibrous inorganic reinforcing material and not less than 0.5 wt % nor more than 10 wt % of polycarbodiimide resin are added. The injection-molded article is obtained by injection molding the resin composition.