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- 80 Chain Number
- 2 Strands
- 21 Teeth
- Without Hardened Teeth
- B Sprocket Style
description
- Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.
features
- Tolerances meet or exceed ANSI standards
- Manufactured of high carbon steel
- Precise machining and processes ensure consistent finish and high quality
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- Bores are concentric to pitch line, minimizing run out
- Interchangeable with other manufacturers’ split-taper bushings
| Bore Style | Minimum Bore |
| Pitch Diameter [Min] | 6.710 in |
| Bore Type | Reborable |
| Hub Projection | 1.046 in |
| No. of Strands Across | 2 |
| Bore Range [Min] | 1 in |
| Chain Pitch | 1 in |
| Hub Length Thru | 2.193 in |
| Inch/Metric | Inch |
| Width Across Teeth | 1.704 in |
| Single Strand Tooth Thickness | 0.557 in |
| Martin No. | 80B21H |
| Caliper Diameter | 6.066 in |
| Sprocket Style | B |
| Hub Dia. | 5 in |
| Chain No. | 80 |
| Length Through Bore | 2 3/4 in |
| Series | B |
| Outside Dia. [Min] | 7.2350 in |
| Pitch Diameter | 6.710 in |
| Keyway | No Keyway or Setscrew |
| Material | Steel |
| Hardened Teeth | With Hardened Teeth |
| Bore Range [Max] | 3 5/16 in |
| No. of Teeth | 21 |
| Outside Dia. | 7.2350 in |
| Weight | 20.0 LB |
| EAN or UPC | 697950022017 |
