Single Strand Sprocket For Bushing Size 1210 For Bushing Type Taper Lock For Chain Pitch 3/4 in Material Steel Number of Teeth 13 Outside Diameter 3.493 in Pitch Diameter 3.134 in Chain Number 60 For Number of Strands Single Maximum Bore Diameter 1 in Finish Black Oxide For Pitch Type Single Pitch Hub Diameter 2 15/32 in Hub Projection 0.541 in Hub Type One Side Length through Bore 1 in Material Grade 1045 Minimum Bore Diameter 1 1/4 in