The slewing bearing is composed of ferrule (inner ring, outer ring, upper/lower ring) , rolling body, isolating block, sealing belt and oil cup, etc. ,
a) single-row four-point contact ball slewing bearings (01 series) , as shown in Figure 2:
B) double-row reducing diameter ball slewing bearings (02 Series) , as shown in Figure 3, the rolling body nominal diameter combination is upper row/Lower Row: 25/20,30/25,40/30,50/40,60/50;
C) single-row cross-roller slewing bearings (11 series) , as shown in Figure 4, the rolling body is 1:1 into 90 ° cross arrangement:
D) three-row roller slewing bearings (13 series) , as shown in Figure 5, the rolling body nominal diameter combination is upper row/Lower Row/radial:
25/20/16,32/20,40/32/25,45/32/25,50/40/25
