Find a Service Center
- 120 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
| Bore Range [Max] | 3 1/2 in |
| Chain No. | 120 |
| Chain Pitch | 1 1/2 in |
| Hardened Teeth | Without Hardened Teeth |
| Inch/Metric | Inch |
| No. of Strands Across | 1 |
| Pitch Diameter [Min] | 10.060 in |
| Sprocket Style | B |
| Bore Style | Minimum Bore |
| Caliper Diameter | 9.16 in |
| Hub Length Thru | 1.451 in |
| Martin No. | 120B21 |
| Length Through Bore | 2 3/8 in |
| Width Across Teeth | 0.92 in |
| Pitch Diameter | 10.060 in |
| No. of Teeth | 21 |
| Material | Steel |
| Bore Range [Min] | 1 1/4 in |
| Keyway | No Keyway or Setscrew |
| Outside Dia. | 10.8500 in |
| Bore Type | Reborable |
| Series | B |
| Hub Dia. | 5 1/4 in |
| Construction | Welded |
| Outside Dia. [Min] | 10.8500 in |
| Weight | 37.48 LB |
| EAN or UPC | 697950024813 |
