BlackStar 40BS47 1 1/2 K2S - 40 Pitch Finished Bore Sprocket - 47 Tooth - 1-1/2" Bore Cogged V-Belt Prefer our D&D Global equivalent:

Prefer our D&D Global equivalent: XPZ1587 Cogged V-Belt

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so a 150-S5M-520 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

1152-8M-85 Timing Belt

BlackStar 40BS47 1 1/2 K2S - 40 Pitch Finished Bore Sprocket - 47 Tooth - 1-1/2" Bore Cogged V-Belt Prefer our D&D Global equivalent:The BlackStar 40BS47 1 1 2 K2S is a 40 pitch Finished Bore roller chain sprocket with 47 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 1 2" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 40BS47 1 1 2 K2S Chain Pitch 40 Number of Teeth 47 Bore Size 1 1 2" Minimum Bore 5 8" Maximum Bore 1 1 2" Bore