BlackStar 40P31 - 40 Pitch Taper Lock Sprocket - 31 Tooth Double Row Ball Bearing so a 3030V377 from any

so a 3030V377 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

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so the 11/3V1000 interchanges with Gates 11/3V1000

The Megadyne 6/C112 is a banded (6-rib) C V-belt with a 115

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BlackStar 40P31 - 40 Pitch Taper Lock Sprocket - 31 Tooth Double Row Ball Bearing so a 3030V377 from anyThe BlackStar 40P31 is a 40 pitch Taper Lock 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 requires a Taper Lock Bushing (sold separately). Specifications Part Number 40P31 Chain Pitch 40 Number of Teeth 31 Bore Type QD Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Single Material Steel Outside Diameter