V-Belt Idler Pulley Bearing Type Needle Roller For V-Belt Type Classical Cogged Bore Diameter 1/2 in Face Width 0.75 in For Belt Trade Size 4L A AX Outside Diameter 3.05 in Pulley Material Cast Iron For Use With Tightener Shafts Hub Diameter 1 5/8 in Hub Projection 0.25 in Length through Bore 3/4 in Material Fabrication Cast Number of Grooves 1 Overall Width 0.75 in