BlackStar D40P24H - Double Strand 40 Pitch Taper Lock Sprocket - 24 ToothThe BlackStar D40P24H is a 40 pitch double strand Taper Lock roller chain sprocket with 24 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 D40P24H Chain Pitch 40 Number of Teeth 24 Bore Type QD Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Double Material