| Designation | External Gear | TLOR30/1255 Four-point Contact Ball Slewing Bearing |
| Boundary Dimension | D(Da) | 1400 |
| d | 1105 | |
| H | 90 | |
| H1 | 71 | |
| h | 19 | |
| Mounting Hole Size | D1 | 1316 |
| D2 | 1145 | |
| n1 | 42 | |
| n2 | 42 | |
| φ1 | M20 | |
| φ2 | φ22 | |
| Structure dimensions | d2 | 1193 |
| d1 | 1255 | |
| D3 | 1255 | |
| Gear Data | m | 10 |
| z | 138 | |
| do | 1380 | |
| x | 0 | |
| Wt(KG) | 216 | |
+86-021-54846037