BlackStar D80R45 - Double Strand 80 Pitch R Sprocket - 45 Tooth T20US so a 3/BX128 from any

so a 3/BX128 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

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Continental 8/5V3000

BlackStar D80R45 - Double Strand 80 Pitch R Sprocket - 45 Tooth T20US so a 3/BX128 from anyThe BlackStar D80R45 is a 80 pitch double strand R roller chain sprocket with 45 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number D80R45 Chain Pitch 80 Number of Teeth 45 Bore Type Plain Bore Hub Style R Strand Count Double Material Steel Outside Diameter 14. 90" Pitch Diameter 14. 336" Approx. Weight 68. 000 lbs Cross references: Browning