Slewing bearings are used inCrane bearings, crane bearings, bucket wheel bearings, marine crane bearings, shield machine bearings, large ladle bearings and other turntable equipment bearings subject to radial, axial and moment loads. Slewing bearings are widely used. Engineering machinery is the initial application field of slewing bearings and is also the most widely used place, such as earthmoving machinery, excavators, dismantling machines, stackers and reclaimers, graders, road rollers, dynamic compactors, rock drilling machinery, tunnel boring machines, etc.