BlackStar H50BS27 1 3/16 K2S - 50 Pitch Finished Bore Sprocket - 27 Tooth - 1-3/16" Bore Belt Tensioner The 7/D480 has a 1-1/4"

The 7/D480 has a 1-1/4" width

293L1770 is a timing belt used on positive

The Gates 2/B53 Hi-Power II PowerBand V-Belts is a banded V-belt featuring Classical B-section dimensions

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BlackStar H50BS27 1 3/16 K2S - 50 Pitch Finished Bore Sprocket - 27 Tooth - 1-3/16" Bore Belt Tensioner The 7/D480 has a 1-1/4"The BlackStar H50BS27 1 3 16 K2S is a 50 pitch Finished Bore roller chain sprocket with 27 teeth, precision manufactured from SAE 1045 steel with induction hardened teeth for extended wear life and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 3 16" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number H50BS27 1 3 16 K2S Chain Pitch 50 Number of Teeth 27