Find a Service Center
- 20B-1 Chain Number
- 57 Teeth
- 1 Strand
- Taper Lock Bushing
- Without Hardened Teeth
features
- Tolerances meet or exceed ISO 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
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- Interchangeable with other manufacturers’ taper bushings
| Hardened Teeth | Without Hardened Teeth |
| Caliper Diameter | 557.08 mm |
| Bushing Bore [Max] | 76.2 mm |
| No. of Strands Across | 1 |
| Outside Dia. [Min] | 596.99 mm |
| Outside Dia. | 596.99 mm |
| Bushing Bore [Min] | 23.81 mm |
| Hub Dia. | 133.35 mm |
| Pitch Diameter | 576.35 mm |
| Inch/Metric | Metric |
| Overall Length Less Threads | N/A |
| Sprocket Style | B |
| Hub Length | 32.46 mm |
| Type | B |
| No. of Teeth | 57 |
| Chain No. | 20B |
| Material | Steel |
| Hub Projection | 32.46 mm |
| Overall Length | 50.8 mm |
| Bore Type | Bushed |
| Chain Pitch | 1.25 in, 31.75 mm |
| Length Through Bore | 50.8 mm |
| Bushing Type | Taperlock |
| Root Diameter | 557.3 mm |
| Bushing Series | 3020 |
| Width Across Teeth | 18.59 mm |
| Weight | 83.37 LB |
| EAN or UPC | 697950411620 |
