Pulley and pulley device

摘要

A pulley (P) includes a pair of pulley portions (1) that are arranged axially next to each other and oriented in opposite directions. Each of the pulley portions has: an inner cylindrical portion (11); an outer cylindrical portion (12) that is arranged concentrically with the inner cylindrical portion and that has an outer periphery around which a belt (3) is wound; and an annular portion (13) that connects the inner cylindrical portion and the outer cylindrical portion to each other. First side faces of the annular portions of the pulley portions are arranged so as to axially face each other with an axial vibration absorbing member (4), which absorbs axial vibrations of the annular portions, interposed between the first side faces.