Roller Chain Sprocket Bore Diameter 1/2 in For Chain Pitch 3/8 in For Number of Strands Single Hub Type One Side Material Steel Maximum Bore Diameter 1 3/8 in Number of Teeth 29 Outside Diameter 3.637 in Pitch Diameter 3.469 in Bore Type Plain Chain Number 35 Finish Black Oxide Keyway No Keyway Depth Not Applicable Keyway Width Not Applicable Length through Bore 7/8 in Number of Set Screws 0 Set Screw Location Not Applicable Set Screw Size Not Applicable