BlackStar DS140A17H - Double-Single 140 Pitch A-Plate Sprocket - 17 Tooth Bearing Locknut 1050-5M-25 has a 5 mm

1050-5M-25 has a 5 mm tooth pitch

3/B74 is a standardized industry size

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BlackStar DS140A17H - Double-Single 140 Pitch A-Plate Sprocket - 17 Tooth Bearing Locknut 1050-5M-25 has a 5 mmThe BlackStar DS140A17H is a 140 pitch double single strand A Plate roller chain sprocket with 17 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Specifications Part Number DS140A17H Chain Pitch 140 Number of Teeth 17 Bore Type Plain Bore Hub Style A Plate Strand Count Double Single Material Steel Outside Diameter 10. 41" Pitch Diameter 9. 524" Approx. Weight 58. 000 lbs