BlackStar 60BS37 2 K2S - 60 Pitch Finished Bore Sprocket - 37 Tooth - 2" Bore PowerGrip GT3 Belt The BX63 is used for

The BX63 is used for hvac blowers and air handlers

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BlackStar 60BS37 2 K2S - 60 Pitch Finished Bore Sprocket - 37 Tooth - 2" Bore PowerGrip GT3 Belt The BX63 is used forThe BlackStar 60BS37 2 K2S is a 60 pitch Finished Bore roller chain sprocket with 37 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. This sprocket has a 2" bore with keyway and set screws and is ready for immediate installation. Specifications Part Number 60BS37 2 K2S Chain Pitch 60 Number of Teeth 37 Bore Size 2" Minimum Bore 1" Maximum Bore 2 7 16" Bore Type Finished