Browning® Bore Sheave, Finished Bore, 3/4 in Bore Diameter, 5-3/4 in Outside Diameter, 5.7 in Pitch Diameter, 1 Grooves, 3/4 in Face Width, Cast Iron, Additional Information: 4L/A, 3L Belt Section, 0.1875 x 0.0938 in Keyway Size, 1.22 in Overall Width, Spoked Pulley Construction