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Double-row Ball Slewing Bearings

The double-row Ball slewing bearing has three seat-rings. The steel balls and the spacers may be directly arranged into the upper and lower races. Two rows of steel balls with different diameters are fitted according to the force boom. Such open mode fitting features extraordinary convenience. The load angles of both upper and lower races are 90°, which enable the bearing to bear large axial force and the tipping moment. When the radial force is larger than 1/10 of the axial force the races should be newly designed. As the axle and the dimension of the double-row ball slewing bearing are rather large, the bearing construction is sturdy, hence it is especially suitable for tower cranes which require working radius over medium range, mobile cranes and loading and unloading machines.



      sturctural          weight
Basic Type  Configuration Mounting size  Gear Ext Gear Int Gear kg 
size date
Toothless Ext Toothless  INt Toothless D d H D1 D2 dn1 dm1 n n1 H1  h b m da Z da Z
 DL  DL  DL mm  mm  dn2 dm2 mm  mm  mm  mm 
mm mm mm mm  mm
020.25.500  021.25.500  023.25.500  616 384 106 580 420 18 M16 20 4 96 26 60 5 644 126 357 72 100
022.25.500  024.25.500  6 646.8 105 350 .4  59
020.25.560  021.25.560  023.25.560  676 444 640 480 5 704 138 417 84 115
022.25.560  024.25.560  6 706.8 115 410.4 69
020.25.630  021.25.630  023.25.630  746 514 710 550 24 6 790.8 129 482.4 81 130
022.25.630  024.25.630  8 790.4 96 475.2 60
020.25.710  021.25.710  023.25.710  826 594 790 630 6 862.8 141 560.4 94 140
022.25.710  024.25.710  8 862.4 105 555.2 70
020.30.800 021.30.800  023.30.800  942 658 124 898 702 22 M20 30 6 114 29 80 8 982.4 120 619.2 78 200
022.30.800  024.30.800  10 988 96 614 62
020.30.900  021.30.900  023.30.900  1042 758 998 802 8 1086 .4  133 715.2 90 250
022.30.900  024.30.900  10 1088 106 714 72
020.30.1000  021.30.1000  023.30.1000  1142 858 1098 902 36 10 1198 117 814 82 300
022.30.1000  024.30.1000  12 1197.6 97 796.8 67
020.30.1120  021.30.1120  023.30.1120  1262 978 1218 1022 10 1318 129 924 93 340
022.30.1120  024.30.1120  12 1317.6 107 916.8 77
020.40.1250  021.40.1250 023.40.1250  1426 1074 160 1374 1126 26 M24 40 5 150 39 90 12 1497.6 122 1012.8 85 580
022.40.1250  024.40.1250  14 1495.2 104 1013.6 73
020.40.1400  021.40.1400  023.40.1400  1576 1224 1524 1272 12 1641.6 134 1156.8 97 650
022.40.1400  024.40.1400  14 1649.2 115 1153.6 83
020.40.1600  021.40.1600  023.40.1600  1776 1424 1724 1476 45 14 1845.2 129 1349.6 97 750
022.40.1600  024.40.1600  16 1852.8 113 1350.4 85
020.40.1800  021.40.1800  023.40.1800  1976 1624 1924 1676 14 2055.2 144 1545.6 111 820
022.40.1800  024.40.1800  16 2060.8 126 1542.4 97
020.50.2000  021.50.2000  023.50.2000  2215 1785 190 2149 1851 33 M30 48 8 178 47 120 16 2300.8 141 1702.4 107 1150
022.50.2000  024.50.2000  18 2300.4 125 1699.2 95
020.50.2240  021.50.2240  023.50.2240  2455 2025 2389 2091 16 2540.8 156 1942.4 122 1500
022.50.2240  024.50.2240  18 2552.4 139 1933.2 108
020.50.2500  021.50.2500  023.50.2500  2715 2285 2649 2351 56 18 2804.4 153 2203.2 123 1700
022.50.2500  024.50.2500  20 2816 138 2188 110
020.50.2800  021.50.2800  023.50.2800  3015 2585 2949 2651 18 3110.4 170 2491.2 139 1900
022.50.2800  024.50.2800  20 3116 153 2488 125

For other size please contact with us. We also accept custom making.

 

 

Double Row Ball Slewing Bearing Internal Gear
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Hot tags  :  Internal Gear Slewing Bearing  

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