GEAR AND GEAR SET

摘要

A gear according to the present invention comprises: a gear body which has a gear tooth unit; a lubricant filling unit which is formed on at least a part of the gear body and is filled with a lubricant; a cover covering the lubricant filling unit; and a lubricant path which is formed on at least a part of the body and is formed between at least a part of the outer surface of the gear and the lubricant filling unit.