BlackStar H120R28 (TYPE 4) - 120 Pitch R Sprocket - 28 Tooth 4.1/4" Is 6/8V2800 the same as

Is 6/8V2800 the same as other brands' 6/8V2800

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What are the dimensions of 1980M12

BlackStar H120R28 (TYPE 4) - 120 Pitch R Sprocket - 28 Tooth 4.1/4" Is 6/8V2800 the same asThe BlackStar H120R28 (TYPE 4) is a 120 pitch R roller chain sprocket with 28 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. Specifications Part Number H120R28 (TYPE 4) Chain Pitch 120 Number of Teeth 28 Bore Type Plain Bore Hub Style R Strand Count Single Material Steel Hardened Teeth Yes Outside Diameter 14. 21"