Sprocket For Bushing Size 1610 For Bushing Type Taper Lock For Chain Pitch 3/4 in Material Steel Number of Teeth 17 Outside Diameter 4.642 in Pitch Diameter 4.082 in Chain Number 60 For Number of Strands Single Maximum Bore Diameter 1 5/8 in Finish Black Oxide For Pitch Type Single Pitch Hub Diameter 3 1/4 in Hub Projection 0.541 in Hub Type One Side Length through Bore 1 in Material Grade 1045 Minimum Bore Diameter 1 5/8 in Resistance Properties Corrosion Resistant