Bushed Roller Chain Sprocket For Bushing Size SF For Bushing Type Quick Detachable For Chain Pitch 1 1/2 in Material Steel Number of Teeth 15 Outside Diameter 7.96 in Pitch Diameter 7.215 in Chain Number 120 For Number of Strands Single Maximum Bore Diameter 2 15/16 in Finish Black Oxide Hub Diameter 4 5/8 in Hub Projection 0.326 in Hub Type One Side Length through Bore 2 1/4 in Standards ANSI B29.1 BIS Teeth Heat Treatment Hardened Teeth Tooth Width 0.924 in