| Designation | Internal Gear | TLIR20/844 Slewing Ring Bearing |
| Boundary Dimension | d(da) | 737.6 |
| D | 948 | |
| H | 56 | |
| H1 | 46 | |
| h | 10 | |
| Mounting Hole Size | D1 | 920 |
| D2 | 805 | |
| n1 | 14 | |
| n2 | 20 | |
| φ1 | φ18 | |
| φ2 | M12 | |
| Structure dimensions | D4 | 883 |
| d1 | 845.5 | |
| D3 | 842.5 | |
| Gear Data | m | 8 |
| z | 94 | |
| do | 752 | |
| x | 0 | |
| Wt(KG) | 62 | |
+86-021-54846037