Double row ball slewing bearing
The double row ball slewing bearing has three seat rings , the steel ball and the spaces can be directly arranged into the upper and lower races. Two rows of steel balls are fitted according to the force born . Open mode fitting is extraordinary convenient .The load angles of both upper and lower race are 90°,which enable to bear large axial force and the tilting moment.
As the axial and radial dimension of the double row ball slewing bearing are rather large , structural is tightening and can support high static loads. They are mainly used in situations with variational load position and direction and continuously rotating . Especially suitable for tower cranes which require working radius over medium range , mobile crane and loading and unloading machinery .
Model | Boundary dimensions(mm) | Bolt hole diameter(mm) | Gear parameters(mm) | Weight | Non-gear | External gear | Internal gear | D | d | H | D1 | D2 | n | m | Da Z | da Z | b | X | kg | 020-25-500 | 021-25-500 | 023-25-500 | 616 | 384 | 106 | 580 | 420 | 20 | 5 | 645 | 126 | 355 | 72 | 60 | 0.5 | 100 | | 022-25-500 | 024-25-500 | 616 | 384 | 106 | 580 | 420 | 20 | 6 | 648 | 105 | 348 | 59 | 60 | 0.5 | 100 | 020-25-560 | 021-25-560 | 023-25-560 | 676 | 444 | 106 | 640 | 480 | 20 | 5 | 705 | 138 | 415 | 84 | 60 | 0.5 | 115 | | 022-25-560 | 024-25-560 | 676 | 444 | 106 | 640 | 480 | 20 | 6 | 708 | 115 | 408 | 69 | 60 | 0.5 | 115 | 020-25-630 | 021-25-630 | 023-25-630 | 746 | 514 | 106 | 710 | 550 | 24 | 6 | 792 | 129 | 480 | 81 | 60 | 0.5 | 130 | | 022-25-630 | 024-25-630 | 746 | 514 | 106 | 710 | 550 | 24 | 8 | 792 | 96 | 472 | 60 | 60 | 0.5 | 130 | 020-25-710 | 021-25-710 | 023-25-710 | 826 | 594 | 106 | 790 | 630 | 24 | 6 | 864 | 141 | 558 | 94 | 60 | 0.5 | 140 | | 022-25-710 | 024-25-710 | 826 | 594 | 106 | 790 | 630 | 24 | 8 | 864 | 105 | 552 | 70 | 60 | 0.5 | 140 | 020-30-800 | 021-30-800 | 023-30-800 | 942 | 658 | 124 | 898 | 702 | 30 | 8 | 984 | 120 | 616 | 78 | 80 | 0.5 | 200 | | 022-30-800 | 024-30-800 | 942 | 658 | 124 | 898 | 702 | 30 | 10 | 990 | 96 | 610 | 62 | 80 | 0.5 | 200 | 020-30-900 | 021-30-900 | 023-30-900 | 1042 | 758 | 124 | 998 | 802 | 30 | 8 | 1088 | 133 | 712 | 90 | 80 | 0.5 | 250 | | 022-30-900 | 024-30-900 | 1042 | 758 | 124 | 998 | 802 | 30 | 10 | 1090 | 106 | 710 | 72 | 80 | 0.5 | 250 | 020-30-1000 | 021-30-1000 | 023-30-1000 | 1142 | 858 | 124 | 1098 | 902 | 36 | 10 | 1200 | 117 | 810 | 82 | 80 | 0.5 | 300 | | 022-30-1000 | 024-30-1000 | 1142 | 858 | 124 | 1098 | 902 | 36 | 12 | 1200 | 97 | 792 | 67 | 80 | 0.5 | 300 | 020-30-1120 | 021-30-1120 | 023-30-1120 | 1262 | 978 | 124 | 1218 | 1022 | 36 | 10 | 1320 | 129 | 920 | 93 | 80 | 0.5 | 340 | | 022-30-1120 | 024-30-1120 | 1262 | 978 | 124 | 1218 | 1022 | 36 | 12 | 1320 | 107 | 912 | 77 | 80 | 0.5 | 340 | 020-40-1250 | 021-40-1250 | 023-40-1250 | 1426 | 1074 | 160 | 1374 | 1126 | 40 | 12 | 1500 | 122 | 1008 | 85 | 90 | 0.5 | 580 | | 022-40-1250 | 024-40-1250 | 1426 | 1074 | 160 | 1374 | 1126 | 40 | 14 | 1498 | 104 | 1008 | 73 | 90 | 0.5 | 580 | 020-40-1400 | 021-40-1400 | 023-40-1400 | 1576 | 1224 | 160 | 1524 | 1272 | 40 | 12 | 1644 | 134 | 1152 | 97 | 90 | 0.5 | 650 | | 022-40-1400 | 024-40-1400 | 1576 | 1224 | 160 | 1524 | 1272 | 40 | 14 | 1652 | 115 | 1148 | 83 | 90 | 0.5 | 650 | 020-40-1600 | 021-40-1600 | 023-40-1600 | 1776 | 1424 | 160 | 1724 | 1476 | 45 | 14 | 1848 | 129 | 1344 | 97 | 90 | 0.5 | 750 | | 022-40-1600 | 024-40-1600 | 1776 | 1424 | 160 | 1724 | 1476 | 45 | 16 | 1856 | 113 | 1344 | 85 | 90 | 0.5 | 750 | 020-40-1800 | 021-40-1800 | 023-40-1800 | 1976 | 1624 | 160 | 1924 | 1676 | 45 | 14 | 2058 | 144 | 1540 | 111 | 90 | 0.5 | 820 | | 022-40-1800 | 024-40-1800 | 1976 | 1624 | 160 | 1924 | 1676 | 45 | 16 | 2064 | 126 | 1536 | 97 | 90 | 0.5 | 820 | 020-50-2000 | 021-50-2000 | 023-50-2000 | 2215 | 1785 | 190 | 2149 | 1851 | 48 | 16 | 2304 | 141 | 1696 | 107 | 120 | 0.5 | 1150 | | 022-50-2000 | 024-50-2000 | 2215 | 1785 | 190 | 2149 | 1851 | 48 | 18 | 2304 | 125 | 1692 | 95 | 120 | 0.5 | 1150 | 020-50-2240 | 021-50-2240 | 023-50-2240 | 2455 | 2025 | 190 | 2389 | 2091 | 48 | 16 | 2544 | 156 | 1936 | 122 | 120 | 0.5 | 1500 | | 022-50-2240 | 024-50-2240 | 2455 | 2025 | 190 | 2389 | 2091 | 48 | 18 | 2556 | 139 | 1926 | 108 | 120 | 0.5 | 1500 | 020-50-2500 | 021-50-2500 | 023-50-2500 | 2715 | 2285 | 190 | 2649 | 2351 | 56 | 18 | 2804 | 153 | 2196 | 123 | 120 | 0.5 | 1500 | | 022-50-2500 | 024-50-2500 | 2715 | 2285 | 190 | 2649 | 2351 | 56 | 20 | 2820 | 138 | 2180 | 110 | 120 | 0.5 | 1500 | 020-50-2800 | 021-50-2800 | 023-50-2800 | 3015 | 2585 | 190 | 2949 | 2651 | 56 | 18 | 3114 | 170 | 2484 | 139 | 120 | 0.5 | 1900 | | 022-50-2800 | 024-50-2800 | 3015 | 2585 | 190 | 2949 | 2651 | 56 | 20 | 3120 | 153 | 2480 | 125 | 120 | 0.5 | 1900 | 020-60-3150 | 021-60-3150 | 023-60-3150 | 3428 | 2872 | 226 | 3338 | 2962 | 56 | 20 | 3540 | 174 | 2760 | 139 | 150 | 0.5 | 3300 | | 022-60-3150 | 024-60-3150 | 3428 | 2872 | 226 | 3338 | 2962 | 56 | 22 | 3542 | 158 | 2750 | 126 | 150 | 0.5 | 3300 | 020-60-3550 | 021-60-3550 | 023-60-3550 | 3828 | 3272 | 226 | 3738 | 3362 | 56 | 20 | 3940 | 194 | 3160 | 159 | 150 | 0.5 | 3700 | | 022-60-3550 | 024-60-3550 | 3828 | 3272 | 226 | 3738 | 3362 | 56 | 22 | 3938 | 176 | 3168 | 145 | 150 | 0.5 | 3700 | 020-60-4000 | 021-60-4000 | 023-60-4000 | 4278 | 3722 | 226 | 4188 | 3812 | 60 | 22 | 4400 | 197 | 3608 | 165 | 150 | 0.5 | 4200 | | 022-60-4000 | 024-60-4000 | 4278 | 3722 | 226 | 4188 | 3812 | 60 | 25 | 4400 | 173 | 3600 | 145 | 150 | 0.5 | 4200 | 020-60-4500 | 021-60-4500 | 023-60-4500 | 4778 | 4222 | 226 | 4688 | 4312 | 60 | 22 | 4884 | 219 | 4114 | 188 | 150 | 0.5 | 4700 | | 022-60-4500 | 024-60-4500 | 4778 | 4222 | 226 | 4688 | 4312 | 60 | 25 | 4900 | 193 | 4100 | 165 | 150 | 0.5 | 4700 | |
