Finished Bore with Keyway & SS Bore Roller Chain Sprocket, 50 Chain Size, 12 # of Teeth, Tritan, Mfr#: 50BS12H X 1 3/16

Roller Chain Sprocket, Bore Diameter 1 3/16 in, For Chain Pitch 5/8 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 3/16 in, Number of Teeth 12, Outside Diameter 2.71 in, Pitch Diameter 2.415 in, Bore Type Fixed, Chain Number 50, Finish Black Oxide, Hub Diameter 2 in, Hub Projection 0.657 in, Includes Set Screws, Keyway Yes, Keyway Width 1/4 in, Length through Bore 1 in, Number of Set Screws 2