V-Belt Pulley Bore Type Fixed Bore Material Cast Iron Number of Grooves 1 Bore Dia 5/8 In. Outside Dia 2.05 In. 3L Belt Pitch Dia 1.46 In. 4L A or AX Belt Pitch Dia 1.8 In. 4LA or A Belt Pitch Dia 1.8 In. Fits Shaft Dia 5/8 In. None Bushing Required Construction Solid Industry Number AK2058 Keyway Size 0.187 in x 0.093 In. Set Screw Included Yes For Use With 3L 4L A or AX Type V-Belts