
XXL型(节距=3.175mm)
| 规格 | 节线长(mm) | 齿数 |
| B40XXL | 127.00 | 40 |
| B70XXL | 222.25 | 70 |
| B72XXL | 228.60 | 72 |
| B80XXL | 254.00 | 80 |
| B107XXL | 339.73 | 107 |
| B112XXL | 355.60 | 112 |
| B120XXL | 381.00 | 120 |
| B128XXL | 406.40 | 128 |
| B144XXL | 457.20 | 144 |
| B156XXL | 495.30 | 156 |
| B182XXL | 577.85 | 182 |
| B192XXL | 609.60 | 192 |
| B463XXL | 1470.03 | 463 |