| Dimension of Synchronous Belt | ||
| AT20 | ||
| 规格 Type | 节线长 Pitch Length(mm) | 齿数Teeth No. |
| AT20×1080 | 1080.00 | 54 |
| AT20×1200 | 1200.00 | 60 |
| AT20×1240 | 1240.00 | 62 |
| AT20×1280 | 1280.00 | 64 |
| AT20×1320 | 1320.00 | 66 |
| AT20×1460 | 1460.00 | 73 |
| AT20×1500 | 1500.00 | 75 |
| AT20×1700 | 1700.00 | 85 |
| AT20×1780 | 1780.00 | 89 |
| AT20×1880 | 1880.00 | 94 |
| AT20×1900 | 1900.00 | 95 |
| AT20×2360 | 2360.00 | 118 |
| AT20×2600 | 2600.00 | 130 |
| AT20×2760 | 2760.00 | 138 |
| AT20×3100 | 3100.00 | 155 |
| AT20×3620 | 3620.00 | 181 |