BlackStar D40H15H - Double Strand 40 Pitch Split Taper Sprocket - 15 Tooth Synthetic Rubber What does the H in

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BlackStar D40H15H - Double Strand 40 Pitch Split Taper Sprocket - 15 Tooth Synthetic Rubber What does the H inThe BlackStar D40H15H is a 40 pitch double strand Split Taper roller chain sprocket with 15 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket requires a Split Taper Bushing (sold separately). Specifications Part Number D40H15H Chain Pitch 40 Number of Teeth 15 Bore Type Split Taper Hub Style Split Taper Bushing Required Split Taper Bushing Strand Count Double