BlackStar H80A20 - 80 Pitch A-Plate Sprocket - 20 Tooth 22mm so a 16T10/400US from any

so a 16T10/400US from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

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"name": "What is 250-S8M-1904 used for

Continental 7/5VX530

BlackStar H80A20 - 80 Pitch A-Plate Sprocket - 20 Tooth 22mm so a 16T10/400US from anyThe BlackStar H80A20 is a 80 pitch A Plate roller chain sprocket with 20 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 H80A20 Chain Pitch 80 Number of Teeth 20 Bore Type Plain Bore Hub Style A Plate Strand Count Single Material Steel Hardened Teeth Yes Outside Diameter 6. 91" Pitch Diameter