BlackStar 40BS84 1 K2S - 40 Pitch Finished Bore Sprocket - 84 Tooth - 1" Bore TBM The D&D Global 328-8M-30 is

The D&D Global 328-8M-30 is a synchronous timing belt with 8M-pitch profile

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The Gates F14M-34S-20 Poly Chain GT Sprockets 77279634 is a timing belt sprocket

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BlackStar 40BS84 1 K2S - 40 Pitch Finished Bore Sprocket - 84 Tooth - 1" Bore TBM The D&D Global 328-8M-30 isThe BlackStar 40BS84 1 K2S is a 40 pitch Finished Bore roller chain sprocket with 84 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 40BS84 1 K2S Chain Pitch 40 Number of Teeth 84 Bore Size 1" Minimum Bore 3 4" Maximum Bore 1 1 2" Bore Type Finished