Sprocket For Bushing Size H1 For Bushing Type Split Taper For Chain Pitch 1/2 in Material Steel Number of Teeth 16 Outside Diameter 2.814 in Pitch Diameter 2.563 in Chain Number 40 For Number of Strands Single Finish Black Oxide Hub Diameter 2 1/2 in Hub Projection 0.716 in Hub Type One Side Length through Bore 1 in Material Grade 1045 Resistance Properties Corrosion Resistant Teeth Heat Treatment Hardened Teeth Tooth Width 0.284 in Width with Bushing 1.409 in