Finished Bore with Keyway & SS Bore Sprocket, 40 Chain Size, 1-1/2 Bore Dia., 18 # of Teeth, Tritan, Mfr#: 40BS18H X 1 1/2

Sprocket, Bore Diameter 1 1/2 in, For Chain Pitch 1/2 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 1/2 in, Number of Teeth 18, Outside Diameter 3.14 in, Pitch Diameter 2.879 in, Bore Type Fixed, Chain Number 40, Finish Black Oxide, Hub Diameter 2 5/16 in, Hub Projection 0.716 in, Includes Set Screws, Keyway Yes, Keyway Depth 3/16 in, Keyway Width 3/8 in, Length through Bore 1 in, Number of Set Screws 2