The 20004028 Drive Sprocket by Agritrans is a high-quality mechanical power transmission component designed for industrial automation and motion controls. This sprocket features a 2" bore size and 28 teeth to efficiently drive a No. 40 roller chain. With a sturdy construction and a California Prop 65 warning, this sprocket is a reliable option for businesses and industrial applications requiring precise power transmission. Made in the United States, this unit is a crucial component for ensuring smooth and efficient machinery operation.