

| Chain Type | No.50 , 50SS | |
| Pitch | (P) | 15.875 mm (5/8 inch) |
| Internal width | (W) | 9.53 mm |
| Roller Dia. | (Dr) | 10.16 mm |
| Teeth width | (T) | 8.7 mm |
| Sprockets No. | Outside Dia.Do | Pitch Dia.Dp | Bore | Hub | Weight(kg) | ||||
| Type | Teeth No. | Stock | min. | max. | BD | BL | |||
| NKN 50B | 13 | 73 | 66.34 | 13 | 14 | 25 | 51 | 25 | 0.07 |
| 14 | 79 | 71.34 | 13 | 14 | 28 | 52 | 25 | 0.08 | |
| 15 | 84 | 76.35 | 13 | 14 | 30 | 57 | 25 | 0.09 | |
| 16 | 89 | 81.37 | 13 | 14 | 32 | 62 | 25 | 0.11 | |
| 17 | 94 | 86.39 | 13 | 14 | 35 | 67 | 25 | 0.12 | |
| 18 | 99 | 91.42 | 13 | 14 | 40 | 72 | 28 | 0.15 | |
| 20 | 109 | 101.48 | 14 | 15 | 40 | 73 | 28 | 0.18 | |
| 22 | 119 | 111.55 | 16 | 17 | 40 | 73 | 28 | 0.20 | |
| 24 | 129 | 121.62 | 16 | 17 | 40 | 73 | 28 | 0.21 | |
| 25 | 134 | 126.66 | 16 | 17 | 40 | 73 | 28 | 0.22 | |
---Address
Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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