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- 25 Single Strand Chain, 21 Teeth, B Style, Delrin Sprocket
| Chain No. | 25 |
| Hardened Teeth | Without Hardened Teeth |
| Bore Type | Minimum Plain Bore |
| Inch/Metric | Inch |
| Outside Dia. | 1.809 in |
| Chain Pitch | 0.250 in |
| Stock Bore Size | 0.25 in |
| Hub Dia. | 1 3/8 in |
| Width Across Teeth | 0.11 in |
| Material | Delrin |
| Bore Range [Min] | 0.25 in |
| No. of Teeth | 21 |
| No. of Strands Across | 1 |
| Hub Length Thru | 0.515 in |
| Length Through Bore | 0.625 in |
| Bore Range [Max] | N/A |
| Pitch Diameter | 1.677 in |
| Sprocket Style | B |
| Weight | 0.06 LB |
