This Martin Timing Pulleys TB40H150 2517 is a top-quality product made in the United States. It has 40 teeth and a belt width of 1-1/2". The model number is TB40H150. This pulleys and sheaves is perfect for use in industrial automation and motion control applications. It is a reliable and efficient choice for those in need of mechanical power transmission. The country/region of manufacture is the United States.