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The BlackStar H40A57 is a 40 pitch A-Plate roller chain sprocket with 57 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 | H40A57 |
| Chain Pitch | 40 |
| Number of Teeth | 57 |
| Bore Type | Plain Bore |
| Hub Style | A-Plate |
| Strand Count | Single |
| Material | Steel |
| Hardened Teeth | Yes |
| Outside Diameter | 9.36" |
| Pitch Diameter | 9.077" |
| Approx. Weight | 5.0 lbs |

Cross-references: Browning 40A57, Martin 40A57, Boston Gear 40A57
Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
US$40
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