Sprocket For Bushing Size SK For Bushing Type Quick Detachable For Chain Pitch 3/4 in Material Steel Number of Teeth 26 Outside Diameter 6.63 in Pitch Diameter 6.222 in Chain Number 60 For Number of Strands Single Maximum Bore Diameter 2 5/8 in Finish Black Oxide Hub Diameter 3 7/8 in Hub Projection 1.666 in Hub Type One Side Length through Bore 2 1/8 in Standards ANSI B29.1 BIS Teeth Heat Treatment Hardened Teeth Tooth Width 0.459 in Width Across Tooth Sets Not Applicable