BlackStar 80P18 - 80 Pitch Taper Lock Sprocket - 18 Tooth T20US so a 2/SPZ2000 from any

so a 2/SPZ2000 from any major manufacturer shares the same cross-section and length and runs on the same sheaves

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Continental 9/5V800

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The SPZ1900 is rated for continuous operation from -22°F to 176°F

BlackStar 80P18 - 80 Pitch Taper Lock Sprocket - 18 Tooth T20US so a 2/SPZ2000 from anyThe BlackStar 80P18 is a 80 pitch Taper Lock roller chain sprocket with 18 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 80P18 Chain Pitch 80 Number of Teeth 18 Bore Type QD Hub Style Taper Lock Bushing Required Taper Lock Bushing Strand Count Single Material Steel Outside Diameter