Sprocket, For Bushing Size SF, For Bushing Type Quick Detachable, For Chain Pitch 1 in, Material Steel, Number of Teeth 21, Outside Diameter 7.24 in, Pitch Diameter 6.71 in, Chain Number 80, For Number of Strands Single, Maximum Bore Diameter 2 15/16 in, Finish Black Oxide, Hub Diameter 5 in, Hub Projection 1.675 in, Hub Type One Side, Length through Bore 2 1/4 in, Standards ANSI B29.1, BIS, Teeth Heat Treatment Hardened Teeth, Tooth Width 0.575 in, Width Across Tooth Sets Not Applicable