BlackStar H100A23Q - 100 Pitch A-Plate Sprocket - 23 Tooth 1.3/16" "name": "What does the 8M

"name": "What does the 8M in 1520-8M-30 mean

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BlackStar H100A23Q - 100 Pitch A-Plate Sprocket - 23 Tooth 1.3/16" "name": "What does the 8MThe BlackStar H100A23Q is a 100 pitch A Plate roller chain sprocket with 23 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 H100A23Q Chain Pitch 100 Number of Teeth 23 Bore Type Plain Bore Hub Style A Plate Strand Count Single Material Steel Hardened Teeth Yes Outside Diameter 9. 85" Pitch