An alternator damper pulley for a vehicle includes a pulley body connected to an engine to receive a rotational power from an engine. A shaft connection portion is provided within the pulley body such that a rotational shaft of an alternator is insertedly coupled therein. A torsion spring is installed on an outer circumferential surface of the shaft connection portion to reduce a variation of the rotational power transmitted from the pulley body. A clutch is interposed between the torsion spring and the pulley body to connect or disconnect the shaft connection portion and the pulley body. A friction damper is installed to apply frictional damping force to the shaft connection portion.

An alternator damper pulley for a vehicle includes a pulley body connected to an engine to receive a rotational power from an engine. A shaft connection portion is provided within the pulley body such that a rotational shaft of an alternator is insertedly coupled therein. A torsion spring is installed on an outer circumferential surface of the shaft connection portion to reduce a variation of the rotational power transmitted from the pulley body. A clutch is interposed between the torsion spring and the pulley body to connect or disconnect the shaft connection portion and the pulley body. A friction damper is installed to apply frictional damping force to the shaft connection portion.

The present invention relates to a split rim assembly pulley and a manufacturing method thereof, the split rim assembly pulley comprising: a hub coupled to a shaft; a plurality of arms arranged radially around the hub; a plurality of split rims arranged in a circle to form a plurality of unit rings that are stacked on each other and coupled to the other end of each of the arms to form a rim that is concentrically fixed to the hub; and a plurality of fastening members fastened to the plurality of split rims so as to maintain the state in which the split rims form the rim.

The present invention relates to a split rim assembly pulley and a manufacturing method thereof, the split rim assembly pulley comprising: a hub coupled to a shaft; a plurality of arms arranged radially around the hub; a plurality of split rims arranged in a circle to form a plurality of unit rings that are stacked on each other and coupled to the other end of each of the arms to form a rim that is concentrically fixed to the hub; and a plurality of fastening members fastened to the plurality of split rims so as to maintain the state in which the split rims form the rim.