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.

CAT E320D Slewing Gear Ring Swing Bearing

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
Tunway Swing Slewing Bearing for Excavators