Single Strand Sprocket For Bushing Size SDS For Bushing Type Quick Detachable For Chain Pitch 5/8 in Material Steel Number of Teeth 42 Outside Diameter 8.72 in Pitch Diameter 8.363 in Chain Number 50 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 0.407 in Hub Type One Side Length through Bore 3/4 in Material Grade 1045 Minimum Bore Diameter 1/2 in