Polyurethane synchronous belt is the power generated by the rotation of the motor or engine of the prime mover, which is transmitted to the mechanical equipment through the polyurethane synchronous belt through the synchronous belt wheel. It is the core connecting component of electromechanical equipment, with a wide range of applications, ranging from giant motors of several thousand kilowatts to micro motors of less than one kilowatt, and even including precision machinery such as household appliances, computers, and robots, which cannot do without synchronous belts. Its characteristics are the ability to freely change speed, drive far and near, have a simple structure, and are easy to replace. Therefore, synchronous belts have appeared in both primitive machinery and modern automatic equipment, and the product has undergone multiple evolutions and the technology is becoming increasingly mature.