Finished Bore with Keyway & SS Bore Roller Chain Sprocket, 40 Chain Size, 23 # of Teeth, TRITAN, Mfr# 40BS23H X 7/8

Roller Chain Sprocket, Bore Diameter 7/8 in, For Chain Pitch 1/2 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 7/8 in, Number of Teeth 23, Outside Diameter 3.94 in, Pitch Diameter 3.672 in, Bore Type Fixed, Chain Number 40, Finish Black Oxide, Hub Diameter 3 in, Hub Projection 0.716 in, Includes Set Screws, Keyway Yes, Keyway Width 3/16 in, Length through Bore 1 in, Number of Set Screws 2