BlackStar 60BS31 1 1/2 K2S - 60 Pitch Finished Bore Sprocket - 31 Tooth - 1-1/2" Bore jason-xref The 7/B62 is used for

The 7/B62 is used for high-shock and high-vibration drives

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1280-P8M-30 is a timing belt used on positive

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BlackStar 60BS31 1 1/2 K2S - 60 Pitch Finished Bore Sprocket - 31 Tooth - 1-1/2" Bore jason-xref The 7/B62 is used forThe BlackStar 60BS31 1 1 2 K2S is a 60 pitch Finished Bore roller chain sprocket with 31 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 60BS31 1 1 2 K2S Chain Pitch 60 Number of Teeth 31 Bore Size 1 1 2" Minimum Bore 1" Maximum Bore 1 15 16" Bore