Gearbelt Pulley, Bore Diameter 3/8 in, For Belt Series XL, For Belt Width 3/8 in, For Use With 144XL037, Material Aluminum, Maximum Bore Diameter 15/16 in, Number of Teeth 72, Outside Diameter 4.563 in, Pitch 0.2 in, Pitch Diameter 4.584 in, Bore Type Plain, Face Diameter 1 1/2 in, Face Width 0.563 in, Finish Aluminum Clear Anodized, For Belt Trade Size XL, For Maximum Horsepower 1/4 hp, Hub Diameter 1 1/2 in, Hub Projection 7/16 in, Hub Type One Side, Includes Set Screws, Keyway No