Single Strand Sprocket , 40 Chain Size, 1-1/8 Bore Dia., 16 # of Teeth
81 in, Pitch Diameter 2.Single Strand Sprocket, Bore Diameter 1 1/8 in, For Chain Pitch 1/2 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 1/8 in, Number of Teeth 16, Outside Diameter 2.591 in, Includes Set Screws, Keyway Yes, Keyway Depth 1/8 in, Keyway Width 1/4 in, Length through Bore 7/8 in, Material Grade 1045.563 in, Bore Type Fixed, Chain Number 40, Finish Black Oxide, For Pitch Type Single Pitch, Hub Diameter 2 in, Hub Projection 0.