1.-single row ball  no teeth slewing ring

2.-Tri-roller inner teeth slewing ring

3.-single-row ball outer teeth slewing ring

4.-single-roa inner teeth slewing ring

5.-large size single-roa ball outer teeth slewing ring

6.-1.5MW wind yaw bearing and picth bearing

7.-single-row ball no teeth slewing ring

8.-half-type slewing ring

9.-double-row ball slewing ring

10 single-row ball helical teeth slewing ring