Stepped V-Belt Pulley Bore Diameter 5/8 in Finish Zinc Plated For Belt Trade Size 4L A For V-Belt Type Classical Largest Step Outside Diameter 4 in Material Zinc Number of Steps 3 Smallest Step Outside Diameter 2 in Step Outside Diameters 2 in 3 in 4 in Includes Set Screws Keyway Yes Length through Bore 1 1/2 in Material Fabrication Cast Material Grade Zamak 3 Overall Width 1 27/32 in Resistance Properties Corrosion Resistant Spark Free Weight 1.1 lb