

| Chain Type | No.40 | |
| Pitch | (P) | 12.7 mm |
| Internal width | (W) | 7.95 mm |
| Roller Dia. | (Dr) | 7.95 mm |
| Teeth width | (T) | 7.2 mm |
| (C) | 27.8 mm |
| Sprockets No. | Outside Dia.Do | Pitch Dia.Dp | Bore Dia. | Hub | Weight(kg) | ||||
| Type | Teeth No. | Stock | min. | max. | BD | BL | |||
| 40 SD | 12 | 55 | 49.07 | 10 | 12 | 18 | 34 | 35 | 0.33 |
| 13 | 59 | 53.07 | 13 | 15 | 20 | 38 | 35 | 0.40 | |
| 14 | 63 | 57.07 | 13 | 15 | 25 | 42 | 35 | 0.49 | |
| 15 | 67 | 61.08 | 13 | 15 | 28 | 46 | 35 | 0.57 | |
| 16 | 71 | 65.10 | 13 | 15 | 30 | 50 | 35 | 0.66 | |
| 17 | 76 | 69.12 | 13 | 15 | 32 | 54 | 35 | 0.76 | |
| 18 | 80 | 73.14 | 13 | 15 | 38 | 59 | 35 | 0.89 | |
| 19 | 84 | 77.16 | 13 | 15 | 42 | 63 | 35 | 1.00 | |
| 20 | 88 | 81.18 | 14 | 16 | 45 | 67 | 35 | 1.14 | |
| 21 | 92 | 85.21 | 14 | 16 | 48 | 71 | 35 | 1.23 | |

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Luotuo Industrial Area, Zhenhai District, Ningbo City, China
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