Sprocket For Bushing Size SDS For Bushing Type Quick Detachable For Chain Pitch 3/4 in Material Steel Number of Teeth 17 Outside Diameter 4.46 in Pitch Diameter 4.082 in Chain Number 60 For Number of Strands Single Maximum Bore Diameter 2 in Finish Black Oxide For Pitch Type Single Pitch Hub Diameter 3 3/16 in Hub Projection 0.291 in Hub Type One Side Length through Bore 3/4 in Material Grade 1045 Minimum Bore Diameter 1/2 in Resistance Properties Corrosion Resistant