BlackStar D60BTL28H - Double Strand 60 Pitch Taper Lock Sprocket - 28 ToothThe BlackStar D60BTL28H is a 60 pitch double strand Taper Lock roller chain sprocket with 28 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a Taper Lock Bushing (sold separately). Specifications Part Number D60BTL28H Chain Pitch 60 Number of Teeth 28 Bore Type Taper Lock Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Double