Roller Chain Sprocket Bore Diameter 2 in For Chain Pitch 3/4 in For Number of Strands Single Hub Type One Side Material Steel Maximum Bore Diameter 2 in Number of Teeth 36 Outside Diameter 9.02 in Pitch Diameter 8.606 in Bore Type Fixed Chain Number 60 Finish Black Oxide Hub Diameter 4 in Hub Projection 0.791 in Includes Set Screws Keyway Yes Keyway Width 1/2 in Length through Bore 1 1/4 in Number of Set Screws 2