Single Strand Sprocket, Bore Diameter 1 1/4 in, For Chain Pitch 3/4 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 1/4 in, Number of Teeth 24, Outside Diameter 6.15 in, Pitch Diameter 5.746 in, Bore Type Fixed, Chain Number 60, Finish Black Oxide, For Pitch Type Single Pitch, Hub Diameter 4 in, Hub Projection 0.791 in, Includes Set Screws, Keyway Yes, Keyway Depth 1/8 in, Keyway Width 1/4 in, Length through Bore 1 1/4 in, Material Grade 1045