Four Point Contact Ball Slewing Bearing

Four-point contact ball slewing bearing is mainly composed of inner ring, outer ring, single-row steel balls, cage (or spacer), sealing device and other parts. The inner ring and outer ring of the four-point contact ball slewing bearing have integral and split structures. The rigidity of the integral ferrule is relatively strong, and the split type is easy to adjust. The split structure has used bolts to connect the two split rings before the product leaves the factory. Four-point contact ball slewing bearings generally have cages (or spacers). The full-filled ball structure is only used when the load is relatively large. The full-filled four-point contact ball bearing has a large bearing capacity, but a large frictional resistance. Friction can also easily cause scratches on the surface layer of the steel ball. The basic structure of the four-point contact ball slewing bearing/slewing ring: with or without gears, external gears and internal gears, with high static load capacity.

Model parameters of external gear type four-point contact ball slewing bearing

Model Dimensions Installation size Tooth parameters Load Weight
De de di Di He Hi Ht Fe Ne he Fi Ni hi m Z x·m Dp
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [-] [mm] [-] [mm] [-] [mm] [mm] [kN] [kg]
1B12-E-0181 244 182 180 125 25 25 25 214 24 11 144.5 20 11 2 120 240
1B17-E-0235 318 236 234 169 37 34 45 275 20 13.5 195 20 M12 3 104 312
1B20-E-0289 379 290 288 210 40 40 45 335 24 13.5 240 24 13.5 4 92 372
1B20-E-0314 404 315.5 312.5 242 45.5 45.5 56 355 20 M12 268 20 14 5 79 395 30 23
1B20-E-0414 504 415.5 412.5 342 45.5 45.5 56 455 20 M12 368 24 14 5 99 495 30 32
1B20-E-0544 640.8 545.5 542.5 472 45.5 45.5 56 585 28 M12 498 32 14 6 105 630 36 43
1B20-E-0644 742.8 645.5 642.5 572 45.5 45.5 56 685 32 M12 598 36 14 6 122 732 36 52
1B20-E-0744 838.8 745.5 742.5 672 45.5 45.5 56 785 36 M12 698 40 14 6 138 828 36 58
1B20-E-0844 950.4 845.5 842.5 772 45.5 45.5 56 885 36 M12 798 40 14 8 117 936 48 71
1B20-E-0944 1046.4 945.5 942.5 872 45.5 45.5 56 985 40 M12 898 44 14 8 129 1032 48 77
1B20-E-1094 1198.4 1095.5 1092.5 1022 45.5 45.5 56 1135 44 M12 1048 48 14 8 148 1184 48 90
1B25-E-0455 590.4 454 456 355 71 54 80 516 18 M20 395 18 22 8 72 576 77.2 74
1B25-E-0555 694.4 554 556 455 71 54 80 616 20 M20 495 20 22 8 85 680 77.2 93
1B25-E-0655 798.4 654 656 555 71 54 80 716 24 M20 595 24 22 8 98 784 77.2 111
1B25-E-0755 898 754 756 655 71 54 80 816 24 M20 695 24 22 9 98 882 86.8 125
1B25-E-0855 997 854 856 755 71 54 80 916 28 M20 795 28 22 9 109 981 86.8 145
1B25-E-0955 1096 954 956 855 71 54 80 1016 30 M20 895 30 22 9 120 1080 86.8 155
1B25-E-1055 1198 1054 1056 955 71 54 80 1116 30 M20 995 30 22 10 118 1180 96.6 171
1B25-E-1155 1298 1154 1156 1055 71 54 80 1216 36 M20 1095 36 22 10 128 1280 96.6 186
1B25-E-1255 1398 1254 1256 1155 71 54 80 1316 42 M20 1195 42 22 10 138 1380 96.6 201
1B25-E-1355 1498 1354 1356 1255 71 54 80 1416 42 M20 1295 42 22 10 148 1480 96.6 218
1B25-E-1455 1598 1454 1456 1355 71 54 80 1516 48 M20 1395 48 22 10 158 1580 96.6 233
1B25-E-1204 1338 1207.5 1200.5 1119 58 58 68 1257 45 16 1151 45 16 10 131 5 1310 92.8 154
1B25-E-1314 1448 1317.5 1310.5 1229 58 58 68 1367 50 16 1261 50 16 10 142 5 1420 92.8 166
1B25-E-1424 1558 1427.5 1420.5 1339 58 58 68 1477 54 16 1371 54 16 10 153 5 1530 92.8 180
1B25-E-1534 1668 1537.5 1530.5 1449 58 58 68 1587 60 16 1481 60 16 10 164 5 1640 92.8 193
1B25-E-1644 1791 1647.5 1640.5 1536 58 58 68 1708 54 22 1580 54 22 10 176 6.5 1760 92.8 237
1B25-E-1754 1901 1757.5 1750.5 1646 58 58 68 1818 60 22 1690 60 22 10 187 6.5 1870 92.8 257
1B25-E-1904 2073 1907.5 1900.5 1796 58 58 68 1968 64 22 1840 64 22 14 145 6.5 2030 130 300
1B50-E-1900 2139.2 1898 1902 1729 100 99 109 2005 36 33 1795 36 33 14 150 7 2100 257 820
1B50-E-2130 2380.8 2128 2132 1959 100 99 109 2235 48 33 2025 48 33 16 146 8 2336 293.6 931

Internal gear type four-point contact ball slewing bearing model parameters

Internal gear type four-point contact ball slewing bearing model parameters

Model Dimensions Installation size Tooth parameters Load Weight
De de di Di He Hi Ht Fe Ne he Fi Ni hi m Z x·m Dp
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [-] [mm] [-] [mm] [-] [mm] [mm] [kN] [kg]
1B15-I-0245 300 246 244 174.5 32 32 40 280 20 11 210 20 11 3 60 180
1B20-I-0307 385 309.5 306.5 217 45 45 55 358 24 13.5 259 24 13.5 4 56 224
1B20-I-0314 386 315.5 312.5 225 45.5 45.5 56 360 24 14 275 24 M12 5 47 235 31 22
1B20-I-0414 486 415.5 412.5 325 45.5 45.5 56 460 24 14 375 24 M12 5 67 335 31 31
1B20-I-0544 616 545.5 542.5 444 45.5 45.5 56 590 32 14 505 32 M12 6 76 456 37.4 43
1B20-I-0644 716 645.5 642.5 546 45.5 45.5 56 690 36 14 605 36 M12 6 93 558 37.4 50
1B20-I-0744 816 745.5 742.5 648 45.5 45.5 56 790 40 14 705 40 M12 6 110 660 37.4 57
1B20-I-0844 916 845.5 842.5 736 45.5 45.5 56 890 40 14 805 40 M12 8 94 752 50 69
1B20-I-0944 1016 945.5 942.5 840 45.5 45.5 56 990 44 14 905 44 M12 8 107 856 50 75
1B20-I-1094 1166 1095.5 1092.5 984 45.5 45.5 56 1140 48 14 1055 48 M12 8 125 1000 50 91
1B25-I-0455 555 454 456 304 54 71 80 515 18 22 394 18 M20 8 40 320 80.4 64
1B25-I-0555 655 554 556 416 54 71 80 615 20 22 494 20 M20 8 54 432 80.4 76
1B25-I-0655 755 654 656 512 54 71 80 715 24 22 594 24 M20 8 66 528 80.4 102
1B25-I-0755 855 754 756 610 54 71 80 815 24 22 694 24 M20 10 63 630 100.6 119
1B25-I-0855 955 854 856 710 54 71 80 915 28 22 794 28 M20 10 73 730 100.6 137
1B25-I-0955 1055 954 956 810 54 71 80 1015 30 22 894 30 M20 10 83 830 100.6 149
1B25-I-1055 1155 1054 1056 910 54 71 80 1115 30 22 994 30 M20 10 93 930 100.6 165
1B25-I-1155 1255 1154 1156 1010 54 71 80 1215 36 22 1094 36 M20 10 103 1030 100.6 180
1B25-I-1255 1355 1254 1256 1110 54 71 80 1315 42 22 1194 42 M20 10 113 1130 100.6 195
1B25-I-1355 1455 1354 1356 1210 54 71 80 1415 42 22 1294 42 M20 10 123 1230 100.6 212
1B25-I-1455 1555 1454 1456 1310 54 71 80 1515 48 22 1394 48 M20 10 133 1330 100.6 227
1B25-I-1204 1289 1207.5 1200.5 1072 58 58 68 1257 45 16 1151 45 16 10 108 -5 1080 96.6 145
1B25-I-1314 1399 1317.5 1310.5 1182 58 58 68 1367 50 16 1261 50 16 10 119 -5 1190 96.6 159
1B25-I-1424 1509 1427.5 1420.5 1292 58 58 68 1477 54 16 1371 54 16 10 130 -5 1300 96.6 172
1B25-I-1534 1619 1537.5 1530.5 1402 58 58 68 1587 60 16 1481 60 16 10 141 -5 1410 96.6 186
1B25-I-1644 1752 1647.5 1640.5 1495 58 58 68 1708 54 22 1580 54 22 10 150 -6.5 1500 96.6 236
1B25-I-1754 1862 1757.5 1750.5 1605 58 58 68 1818 60 22 1690 60 22 10 161 -6.5 1610 96.6 252
1B25-I-1904 2012 1907.5 1900.5 1729 58 58 68 1968 64 22 1840 64 22 14 124 -6.5 1736 135.2 299
1B50-I-1800 1971 1798 1802 1554 99 100 109 1905 36 33 1695 36 33 14 112 -7 1568 257 762
1B50-I-2000 2171 1998 2002 1764 99 100 109 2105 40 33 1895 40 33 14 127 -7 1778 257 843
1B50-I-2240 2411 2238 2242 1984 99 100 109 2345 48 33 2135 48 33 16 125 -8 2000 293.6 961
1B50-I-2490 2661 2488 2492 2240 99 100 109 2595 54 33 2385 54 33 16 141 -8 2256 293.6 1053
1B50-I-2800 2971 2798 2802 2544 99 100 109 2905 60 33 2695 60 33 16 160 -8 2560 293.6 1205


Gearless four-point contact ball slewing bearing model parameters

Gearless four-point contact ball slewing bearing model parameters

Model Dimensions Installation size Weight
De de di Di He Hi Ht Fe Ne he Fi Ni hi
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [-] [mm] [mm] [-] [mm] [kg]
1B12-U-0181 234 182 180 125 25 25 25 214 24 11 144.5 20 11 5
1B19-U-0217 290 218 216 150 41.5 40 41.5 265 16 14 175 16 M12 14
1B20-U-0260 329 261 259 190 44 44 45 305 16 14 215 16 14 17
1B20-U-0314 386 315.5 312.5 242 45.5 45.5 56 360 20 14 268 20 14 21
1B20-U-0414 486 415.5 412.5 342 45.5 45.5 56 460 24 14 368 24 14 29
1B20-U-0544 616 545.5 542.5 472 45.5 45.5 56 590 32 14 498 32 14 37
1B20-U-0644 716 645.5 642.5 572 45.5 45.5 56 690 36 14 598 36 14 44
1B20-U-0744 816 745.5 742.5 672 45.5 45.5 56 790 40 14 698 40 14 52
1B20-U-0844 916 845.5 842.5 772 45.5 45.5 56 890 40 14 798 40 14 59
1B20-U-0944 1016 945.5 942.5 872 45.5 45.5 56 990 44 14 898 44 14 66
1B20-U-1094 1166 1095.5 1092.5 1022 45.5 45.5 56 1140 48 14 1048 48 14 77
1B25-U-0455 555 454 456 355 54 54 63 515 18 22 395 18 22 53
1B25-U-0555 655 554 556 455 54 54 63 615 20 22 495 20 22 65
1B25-U-0655 755 654 656 555 54 54 63 715 24 22 595 24 22 76
1B25-U-0755 855 754 756 655 54 54 63 815 24 22 695 24 22 90
1B25-U-0855 955 854 856 755 54 54 63 915 28 22 795 28 22 101
1B25-U-0955 1055 954 956 855 54 54 63 1015 30 22 895 30 22 115
1B25-U-1055 1155 1054 1056 955 54 54 63 1115 30 22 995 30 22 128
1B25-U-1155 1255 1154 1156 1055 54 54 63 1215 36 22 1095 36 22 139
1B25-U-1255 1355 1254 1256 1155 54 54 63 1315 42 22 1195 42 22 150
1B25-U-1355 1455 1354 1356 1255 54 54 63 1415 42 22 1295 42 22 163
1B25-U-1455 1555 1454 1456 1355 54 54 63 1515 48 22 1395 48 22 174
1B25-U-1204 1289 1206 1202 1119 58 58 68 1257 45 16 1151 45 16 121
1B25-U-1314 1399 1316 1312 1229 58 58 68 1367 50 16 1261 50 16 132
1B25-U-1424 1509 1426 1422 1339 58 58 68 1477 54 16 1371 54 16 143
1B25-U-1534 1619 1536 1532 1449 58 58 68 1587 60 16 1481 60 16 154
1B25-U-1644 1752 1646 1642 1536 58 58 68 1708 54 22 1580 54 22 209
1B25-U-1754 1862 1756 1752 1646 58 58 68 1818 60 22 1690 60 22 222
1B25-U-1904 2012 1906 1902 1796 58 58 68 1968 64 22 1840 64 22 241