Pulley wheel 7 x 4 cm is specially designed for conveyor belts. They have a groove running through the middle so that they restrict the belt from slipping. A 4 cm width belt is recommended with this pulley. Features: Wheel Dia 66 mm Thickness 4 cm Hole Diameter 6.3 mm Other Pulley Wheel 4×7 can be easily installed on any type of geared DC motors
