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Double Row Different Diameter Ball Slewing Bearing

UWE double row different diameter ball slewing bearing is mainly made up of in-up ring, in-down ring and outside ring, so balls and spacers can be directly discharged into the upper and lower raceway. According to stress conditions, bearings are arranged to two rows of balls of different diameter. This assembly is very convenient. Angle of both upper and lower raceway is 90°so bearings can bear large axial force and resultant torque. Bearing needs special design when radial force is 0.1 times larger than the axial force.
Large in sizes and features compact in design, bearings are particularly application in handling equipments requiring medium above diameter, such as tower crane and mobile crane.

Three types of this kind of double row different diameter ball slewing bearings:
A. Without gear bearing (non tooth)
B. External gear bearing (external tooth)
C. Internal gear bearing (internal tooth)

Without gear bearing (non tooth)double row different diameter ball slewing bearing  External gear bearing (external tooth)double row different diameter ball slewing bearing  Internal gear bearing (internal tooth)double row different diameter ball slewing bearing

                 A                                                                              B                                                                           C


Double row different diameter ball slewing bearing
 

     Without gear                                             Internal gear                                           External gear
 

Bearing No. Boundary dimensions Mounting hole dimensions
Non tooth External tooth Internal tooth D d H D1 D2 dn1
dn2
dm1
dm2
L n
mm
020.25.500 021.25.500 023.25.500 616 384 106 580 420 18 M16 32 20
022.25.500 024.25.500
020.25.560 021.25.560 023.25.560 676 444 640 480
022.25.560 024.25.560
020.25.630 021.25.630 023.25.630 746 514 710 550 24
022.25.630 024.25.630
020.25.710 021.25.710 023.25.710 826 594 790 630
022.25.710 024.25.710
020.30.800 021.30.800 023.30.800 942 658 124 898 702 22 M20 40 30
022.30.800 024.30.800
020.30.900 021.30.900 023.30.900 1042 758 124 998 802 22 M20 40 30
022.30.900 024.30.900
020.30.1000 021.30.1000 023.30.1000 1142 858 1098 902 36
022.30.1000 024.30.1000
020.30.1120 021.30.1120 023.30.1120 1262 978 1218 1022
022.30.1120 024.30.1120
020.40.1250 021.40.1250 023.40.1250 1426 1074 160 1374 1126 26 M24 48 40
022.40.1250 024.40.1250
020.40.1400 021.40.1400 023.40.1400 1576 1224 1524 1276
022.40.1400 024.40.1400
020.40.1600 021.40.1600 023.40.1600 1776 1424 160 1724 1476 26 M24 48 45
022.40.1600 024.40.1600
020.40.1800 021.40.1800 023.40.1800 1976 1624 1924 1676
022.40.1800 024.40.1800
020.50.2000 021.50.2000 023.50.2000 2215 1785 190 2149 1851 33 M30 60 48
022.50.2000 024.50.2000
020.50.2240 021.50.2240 023.50.2240 2455 2025 2389 2091
022.50.2240 024.50.2240
020.50.2500 021.50.2500 023.50.2500 2715 2285 2649 2351 56
022.50.2500 024.50.2500
020.50.2800 021.50.2800 023.50.2800 3015 2585 190 2949 2651 33 M30 60 56
022.50.2800 024.50.2800
020.60.3150 021.60.3150 023.60.3150 3428 2872 226 3338 2962 45 M42 84
022.60.3150 024.60.3150
020.60.3550 021.60.3550 023.60.3550 3828 3272 3738 3362
022.60.3550 024.60.3550
020.60.4000 021.60.4000 023.60.4000 4278 3722 4188 3812 60
022.60.4000 024.60.4000
020.60.4500 021.60.4500 023.60.4500 4778 4222 4688 4312
022.60.4500 024.60.4500