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- Metric Taper Bushed Single Sprocket, Number 20B-1 Chain, 27 Teeth
| Chain No. | 20B |
| Bushing Series | 2517 |
| Width Across Teeth | 18.59 mm |
| Sprocket Style | B |
| Hardened Teeth | Without Hardened Teeth |
| Bushing Bore [Max] | 2.5 in |
| Material | Steel |
| No. of Teeth | 27 |
| Type | B |
| Bushing Type | Taperlock |
| Bushing Bore [Min] | 12.7 mm |
| Inch/Metric | Metric |
| Pitch Diameter | 273.49 mm |
| Chain Pitch | 31.75 mm, 1.25 in |
| Outside Dia. | 290.58 mm |
| Length Through Bore | 50.8 mm |
| No. of Strands Across | 1 |
| Hub Dia. | 133.35 mm |
| Weight | 7.9 LB |
| EAN or UPC | 697950169538 |
