Here you get Pulley Wheel & Track Belt with varying Width of pulley and Diameter of the pulley. This pulley is specially designed for conveyor belts. the pulley wheel is a grooved wheel often used for holding a belt, wire rope, or rope and incorporated into a pulley. Track belt is a loop of flexible material used to mechanically link two or more rotating shafts. This is a small tyre wheel with track belt used in different robotics applications.