Single Strand Sprocket For Bushing Size 1008 For Bushing Type Taper Lock For Chain Pitch 3/4 in Material Steel Number of Teeth 12 Outside Diameter 3.25 in Pitch Diameter 2.898 in Chain Number 60 For Number of Strands Single Maximum Bore Diameter 1 in Finish Black Oxide Hub Diameter 1 15/16 in Hub Projection 0.416 in Hub Type One Side Length through Bore 7/8 in Material Grade 1045 Minimum Bore Diameter 1/2 in Resistance Properties Corrosion Resistant Standards ANSI