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Alternate Products
- 80 Chain Number
- 1 Strand
- 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
- Bores are concentric to pitch line, minimizing run out
| Finished Bore Size | 1 in |
| Hardened Teeth | Without Hardened Teeth |
| Set Screw Size | 1/4-20 UNC |
| Bushing Bore [Min] | 1 in |
| Width Across Teeth | 0.58 in |
| Length Through Bore | 1.75 in |
| Bore Size [Max] | 2.75 in |
| Hub Dia. | 4 1/4 in |
| Caliper Diameter | 6.07 in |
| Outside Dia. | 7.2400 in |
| Pitch Diameter [Min] | 6.710 in |
| Chain Sprocket Number | 80 |
| Chain Sprocket Pitch | 1 in |
| Inch/Metric | Inch |
| Material Internal Use | Carbon Steel |
| No. of Teeth | 21 |
| Bushing Bore Size [Max] | 2.75 in |
| Pitch Diameter | 6.710 in |
| O.D. | 7.235 in |
| Pitch Dia. | 6.71 in |
| Bore Style | Minimum Bore |
| Sprocket Style | B |
| Hub O.D. | 4.25 in |
| Keyway | No Keyway or Setscrew |
| Bushing Bore Size [Min] | 1 in |
| Martin No. | 80B21 |
| Construction | Welded |
| Bore Range [Max] | 2 3/4 in |
| Stock Bore Size | 1 in |
| Hub Length Thru | 1.175 in |
| Bore Type | Finished Bore |
| Outside Dia. [Min] | 7.2400 in |
| Single Strand Tooth Thickness | 0.575 in |
| Chain Pitch | 1.000 in |
| Construction Internal | Welded |
| Material External Use | Steel |
| Bore Range [Min] | 1 in |
| No. of Strands Across | 1 |
| No. of Teeth Rows Strands | 1 |
| Chain No. | 80 |
| Series | B |
| Material | Steel |
| Bore Size [Min] | 1 in |
| Weight | 9.38 LB |
| EAN or UPC | 697950020778 |
