BlackStar 60BS45 1 3/8 K2S - 60 Pitch Finished Bore Sprocket - 45 Tooth - 1-3/8" Bore XL 3/5V1750 is a standardized industry

3/5V1750 is a standardized industry size

What does the P8M in 1280-P8M-20 mean

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"name":"Gates 6/CP240 Predator PowerBand Belts 91846240"

BlackStar 60BS45 1 3/8 K2S - 60 Pitch Finished Bore Sprocket - 45 Tooth - 1-3/8" Bore XL 3/5V1750 is a standardized industryThe BlackStar 60BS45 1 3 8 K2S is a 60 pitch Finished Bore roller chain sprocket with 45 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 1 3 8" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 60BS45 1 3 8 K2S Chain Pitch 60 Number of Teeth 45 Bore Size 1 3 8" Minimum Bore 1" Maximum Bore 2 7 16" Bore