Finished Bore with Keyway & SS Bore Roller Chain Sprocket, 80 Chain Size, 15 # of Teeth
81 in, Bore Type Fixed, Chain Number 80, Finish Black Oxide, Hub Diameter 3 13/16 in, Hub Projection 0.3 in, Pitch Diameter 4.Roller Chain Sprocket, Bore Diameter 1 7/16 in, For Chain Pitch 1 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 7/16 in, Number of Teeth 15, Outside Diameter 5.925 in, Includes Set Screws, Keyway Yes, Keyway Width 3/8 in, Length through Bore 1 1/2 in, Number of Set Screws 2.