BlackStar H60BS13 1 1/2 K2S - 60 Pitch Finished Bore Sprocket - 13 Tooth - 1-1/2" Bore 1.3/8" so a 375L5 from any

so a 375L5 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

The 4/3V560 is a banded v-belt from D&D Global's Dura-Prime Band Wedge - 3V Series line

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BlackStar H60BS13 1 1/2 K2S - 60 Pitch Finished Bore Sprocket - 13 Tooth - 1-1/2" Bore 1.3/8" so a 375L5 from anyThe BlackStar H60BS13 1 1 2 K2S is a 60 pitch Finished Bore roller chain sprocket with 13 teeth, precision manufactured from SAE 1045 steel with induction hardened teeth for extended wear life 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 H60BS13 1 1 2 K2S Chain Pitch 60 Number of Teeth 13 Bore