The crankshaft damper pulley is one of the important parts in the front accessory system of automobile engine, which is divided into rubber torsional vibration damper pulley, silicone oil torsional vibration damper pulley and composite torsional vibration damper pulley. The basic structure generally consists of wheel hubs, outer rings and rubber, which are mostly installed at the front of crankshaft, transmitting the torque output by crankshaft to drive the gear train attachments.