One way clutch, also known as overrunning clutch, is a basic component emerging with the development of electromechanical integration products. It is an important component used for power transmission and separation between the prime mover and the working machine, or between the driving shaft and the driven shaft inside the machine. It is a device with self clutch function by taking advantage of the speed change or rotation direction change of the driving and driven parts.

One way pulley assembly, referred to as OAP, is usually installed in the automobile alternator to solve the problems caused by the fluctuation of engine speed to the front end accessory drive system, improve the belt slip rate, reduce the belt vibration, tension and tensioner travel, effectively extend the life of the gear train and improve NVH. NF-OAP has higher rated torque under the same installation size……