| Designation | Internal Gear | TLIR20/644 Slewing Ring Bearing |
| Boundary Dimension | d(da) | 547.2 |
| D | 748 | |
| H | 56 | |
| H1 | 46 | |
| h | 10 | |
| Mounting Hole Size | D1 | 720 |
| D2 | 605 | |
| n1 | 12 | |
| n2 | 18 | |
| φ1 | φ18 | |
| φ2 | M12 | |
| Structure dimensions | D4 | 683 |
| d1 | 645.5 | |
| D3 | 642.5 | |
| Gear Data | m | 6 |
| z | 93 | |
| do | 558 | |
| x | 0 | |
| Wt(KG) | 45 | |
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