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- 80 Chain Number
- 1 Strand
- 21 Teeth
- 7.235 in Outside Diameter
- 2.4375 in Finished Bore
features
- Conforms to ANSI B29.1-1975 standards
| No. of Teeth Rows Strands | 1 |
| Width Across Teeth | 0.575 in |
| No. of Teeth | 21 |
| Hub O.D. | 4.25 in |
| Outside Dia. [Min] | 7.2350 in |
| Hub Projection | 1.17 in |
| Hardened Teeth | Without Hardened Teeth |
| Bore Type | Finished Bore |
| Finished Bore Size | 2.438 in |
| Key Way Size | 5/8 X 5/16 in |
| Hub Length Thru | 1.175 in |
| Chain Pitch | 1.000 in |
| Sprocket Style | B |
| Construction Internal | Welded |
| Set Screw Size | 5/8-11 UNC |
| Caliper Diameter | 6.0657 in |
| Chain Sprocket Pitch | 1 in |
| Material External Use | Steel |
| Keyway | w/Keyway & Set Screw |
| Pitch Diameter | 6.710 in |
| Inch/Metric | Inch |
| No. of Strands Across | 1 |
| Material Internal Use | Carbon Steel |
| Material | Steel |
| O.D. | 7.235 in |
| Set Screw Location | (1) Over Keyway and (1) At 90° |
| Keyway Size | 5/8 x 5/16 in |
| Chain Sprocket Number | 80 |
| Martin No. | 80BS21 |
| Single Strand Tooth Thickness | 0.575 in |
| Chain No. | 80 |
| Length Through Bore | 1.75 in |
| Finished Bore | 2.4375 in - 2 7/16 in |
| Pitch Dia. | 6.71 in |
| Outside Dia. | 7.2350 in |
| Pitch Diameter [Min] | 6.710 in |
| No. of Screws | 2 |
| Hub Dia. | 4 1/4 in |
| Weight | 7.9 LB |
| EAN or UPC | 697950314600 |
