The excavator slewing bearing, sometimes called slew ring, slewing ring, turntable bearing or swing bearing, is a horizontally mounted bearing with an attached gear. The bearing connects the upper house with the lower undercarriage, allowing each structure to rotate freely and independently of the other.
Tunway supplies a wide range of OEM and aftermarket new slewing bearings for the leading excavators.

We supply high-quality slewing bearings for the leading excavator makers.
| Caterpillar | Komatsu | Hitachi | Kobelco | Kato |
| Sumitomo | Hyundai | Doosan | Daewoo | JCB |
| CASE | Sany | XCMG | SDLG | Sunward |
| Link-Belt | Kongking | Kubota | Yanmar | Volvo |

