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Internal and External Double Flange Slewing Bearing - Versatile & Robust Solution

Internal and External Double Flange Slewing Bearing

Internal and external double flange slewing bearings are advanced bearings designed for applications requiring robust support for high loads and precise rotational movement, with both internal and external flanges providing multiple mounting options. This design offers enhanced flexibility and stability in integrating the bearing into various systems. These bearings feature both internal and external flanges. The internal flange typically provides a mounting surface inside the bearing’s inner ring, while the external flange provides a mounting surface on the outer ring. This dual-flange design allows for versatile mounting options and improved stability. The bearing may use balls or rollers arranged to handle axial, radial, and moment loads. The arrangement of these rolling elements ensures smooth rotation and efficient load distribution.

Product Details

Internal and External Double Flange Slewing Bearing Introduction

Double flange slewing bearings, also known as double row flange-mounted slewing rings, are engineered components that facilitate rotational movement between two connected objects. Consisting of an inner ring, outer ring, rolling elements, and integral flanges, these bearings help transfer axial and radial loads effectively.

Interchangeable With
Model INA Model R.E Model TG Model Dimensions (mm) Installation Dimensions (mm) Structural Dimensions(mm) Gear Parameters(mm) Rated Axial Static Load (KN) Weight(KG)
Da D di H La Li n1 n2 φ1 φ2 D1 d b h B C Di da m z do x
SBI-2501YB4  401 233 40 380 260 8 8 14 φ14 298 348 30.5 30.5 320 322 65 11
SBI-2501  401 233 40 380 260 8 8 14 φ14 298 318 30.5 30.5 320 322 65 11
SLR10/360  360 256 19.05 340 276 12 12 φ9 M8 325 2.05 17 17 302 300 240 4.7
SLR20/414Y1  230.20.0400.013  518 304 56 490 332 8 12 18 18 10.5 45.5 45.5 415.5 412.5 250 23.4
SLR20/414Y3  230.20.0400.503  518 304 56 490 332 16 24 18 18 10.5 45.5 45.5 415.5 412.5 250 23
SLR20/413  518 304 56 490 332 8 12 18 φ18 454 368 10 46 46 415 411 480 25.3
SLR20/518  518 304 56 490 332 8 12 18 φ18 456 372 10 46 46 415.5 412.5 620 23.5
SLR20/414  SD.505.20.00.C  518 304 56 490 332 8 12 18 φ18 453 375 10 46 46 415.5 412.5 500 24.3
SLR20/414Y  VLU200414ZT  518 304 56 490 332 8 12 φ18 φ18 458.5 369.5 8.5 47.5 47.5 415.5 412.5 600 26.5
SLR20/414Y2  VLU200414  518 304 56 490 332 8 12 18 18 8.5 47.5 47.5 415.5 412.5 295 23.5
SLR20/414Y4  230.21.0475.013  517 305 56 490 332 8 12 18 18 10.5 45.5 45.5 415.5 412.5 250 23.4
SLR15/408  500 310 52 475 340 8 8 φ13 φ13 374 446 40 40 404 405 370 23
SBI-2502YB4K  501 333 40 480 360 12 12 M12 M12 396 446 30.5 30.5 418 420 88 13.6
SBI-2502YB4A  501 333 40 480 360 8 8 14.3 φ14.3 396 446 30.5 30.5 418 420 88 13.6
SLR20/544Y1  230.20.0500.013  648 434 56 620 462 10 14 18 18 10.5 45.5 45.5 545.5 542.5 330 31
SLR20/544Y2  230.20.0500.503  648 434 56 620 462 20 28 18 18 10.5 45.5 45.5 545.5 542.5 330 30.4
SLR20/541  648 434 56 620 462 10 14 18 φ18 582 500 11.5 44.5 44.5 542 540 840 33
SLR20/543  648 434 56 620 462 10 14 18 φ18 584 498 10 46 46 544 541 610 33.5
SLR20/544  SD.650.20.00.C  648 434 56 620 462 10 14 18 φ18 583 505 10 46 46 545.5 542.5 660 32
SLR20/648A  648 434 56 620 462 10 14 φ18 φ18 582 500 11.5 44.5 44.5 542 540 840 33
SLR20/544A  230.20.0500.013  648 434 56 620 462 20 28 φ18 φ18 583 505 10.5 45.5 45.5 545.5 542.5 660 30.4
SLR20/544Y  VLU200544ZT  648 434 56 620 462 10 14 φ18 φ18 588.5 499.5 8.5 47.5 47.5 545.5 542.5 800 35.4
SLR20/544Y4  VLU200544  648 434 56 620 462 10 14 18 18 8.5 47.5 47.5 545.5 542.5 385 31
SLR20/544Y3  SD.650.20.00.C  648 434 56 620 462 10 14 φ18 φ18 583 505 10 46 46 545.5 542.5 400 31
SLR20/544Y5  230.21.0575.013  647 435 56 620 462 10 14 18 18 10.5 45.5 45.5 545.5 542.5 330 31
SLR20/644Y3  230.20.0600.013  748 534 56 720 562 12 16 18 18 10.5 45.5 45.5 645.5 642.5 390 36.4
SLR20/644Y2  230.20.0600.503  748 534 56 720 562 24 32 18 18 10.5 45.5 45.5 645.5 642.5 390 35.8
SLR20/644  SD.750.20.00.C  748 534 56 720 562 12 16 18 φ18 683 605 10 46 46 645.5 642.5 780 38
SLR20/644A  VLU200644ZT  748 534 56 720 562 12 16 φ18 φ18 685 602 8.5 47.5 47.5 645.5 642.5 780 38
SLR20/644Y  VLU200644ZT  748 534 56 720 562 12 16 φ18 φ18 688.5 599.5 8.5 47.5 47.5 645.5 642.5 900 42
SLR20/644Y1  748 534 56 720 562 12 16 φ18 φ18 685 598 10 46 46 645.5 642.5 780 38
SLR20/644Y4  VLU200644  748 534 56 720 562 12 16 18 18 8.5 47.5 47.5 645.5 642.5 455 36.5
SLR20/644Y5  SD.750.20.00.C  748 534 56 720 562 12 16 φ18 φ18 683 605 10 46 46 645.5 642.5 460 36.5
SLR20/644Y6  230.21.0675.013  747 535 56 720 562 12 16 18 18 10.5 45.5 45.5 645.5 642.5 390 36.4
SLR20/644B  SD.750.20.00.C  746 536 56 720 562 12 16 φ18 φ18 683 605 10 46 46 645.5 642.5 780 38
SLR20/744Y2  850 632 56 820 662 13 14 16.5 φ16.5 786 702 11.5 44.5 44.5 746 742 670 42.7
SLR20/744Y3  230.20.0700.013  848 634 56 820 662 12 16 18 18 10.5 45.5 45.5 745.5 742.5 450 42.8
SLR20/744Y4  230.20.0700.503  848 634 56 820 662 24 32 18 18 10.5 45.5 45.5 745.5 742.5 450 42.2
SLR20/743  848 634 56 820 662 12 16 18 φ18 784 698 10 46 46 745 741 840 45.9
SLR20/848A  848 634 56 820 662 12 16 18 φ18 783 705 10 46 46 745.5 742.5 1000 42.5
SLR20/744Y  848 634 56 820 662 12 16 φ13 φ13 789 695 10 46 46 745.5 742.5 1000 47.5
SLR20/744Y1  VLU200744ZT  848 634 56 820 662 12 16 φ18 φ18 788.5 699.5 8.5 47.5 47.5 745.5 742.5 1050 45
SLR20/744Y5  VLU200744  848 634 56 820 662 12 16 18 18 8.5 47.5 47.5 745.5 742.5 530 42.5
SLR20/744Y6  230.21.0775.013  847 635 56 820 662 12 16 18 18 10.5 45.5 45.5 745.5 742.5 450 42.8
SLR20/844Y3  230.20.0800.013  948 734 56 920 762 14 18 18 18 10.5 45.5 45.5 845.5 842.5 510 47.8
SLR20/844Y2  230.20.0800.503  948 734 56 920 762 28 36 18 18 10.5 45.5 45.5 845.5 842.5 510 47.1
SLR20/843  948 734 56 920 762 14 18 18 φ18 884 798 10 46 46 845 841 970 52.5
SLR20/948  948 734 56 920 762 14 18 18 φ18 883 805 10 46 46 844 840 1350 48.8
SLR20/844Y  SD.950.20.00.C  948 734 56 920 762 14 18 18 φ18 883 805 10 46 46 845.5 842.5 1030 50
SLR20/844  VLU200844ZT  948 734 56 920 762 14 18 φ18 φ18 888.5 799.5 8.5 47.5 47.5 845.5 842.5 1200 53.8
SLR20/844Y4  VLU200844  948 734 56 920 762 14 18 18 18 8.5 47.5 47.5 845.5 842.5 600 48
SLR20/844Y1  230.21.0875.013  947 735 56 920 762 14 18 18 18 10.5 45.5 45.5 845.5 842.5 510 47.8
SLR20/844A  SD.950.20.00.C  946 736 56 920 762 14 18 φ18 φ18 883 805 10 46 46 845.5 842.5 1030 50
SLR30/955  280.30.0900.013  1100 805 90 1060 845 30 30 22 22 19 71 71 953.5 956.5 1750 131
SLR30/955Y1  VLU 300955  1100 805 90 1060 845 30 30 22 22 19 71 71 953 957 2550 135
SLR30/955Y2  SD.1100.32.00.C  1100 805 90 1060 845 30 30 φ22 φ22 1017 893 19 71 71 955 955 2250 131
SLR30/955Y  280.30.0975.013  1098 807 90 1060 845 30 30 22 22 19 71 71 953.5 956.5 1750 131
SLR20/944Y4  230.20.0900.013  1048 834 56 1020 862 16 20 18 18 10.5 45.5 45.5 945.5 942.5 570 53.1
SLR20/944Y3  230.20.0900.503  1048 834 56 1020 862 32 40 18 18 10.5 45.5 45.5 945.5 942.5 570 52.3
SLR20/944  SD.1050.20.00.C  1048 834 56 1020 862 16 20 18 φ18 983 905 10 46 46 945.5 942.5 1440 55.6
SLR20/944Y  VLU200944ZT  1048 834 56 1020 862 16 20 φ18 φ18 988.5 899.5 8.5 47.5 47.5 945.5 942.5 1350 61
SLR20/944Y2  VLU200944  1048 834 56 1020 862 16 20 18 18 8.5 47.5 47.5 945.5 942.5 670 54
SLR20/944Y1  230.21.0975.013  1047 835 56 1020 862 16 20 18 18 10.5 45.5 45.5 945.5 942.5 570 53.1
SLR30/1055Y2  280.30.1000.013  1200 905 90 1160 945 30 30 22 22 19 71 71 1053.5 1056.5 1840 145
SLR30/1055Y1  VLU301055  1200 905 90 1160 945 30 30 22 22 19 71 71 1053 1057 2800 149
SLR30/1055  SD.1200.32.00.C  1200 905 90 1160 945 30 30 φ22 φ22 1117 993 19 71 71 1055 1055 2500 145
SLR30/1055Y  280.30.1075.013  1198 907 90 1160 945 30 30 22 22 19 71 71 1053.5 1056.5 1840 145
SLR20/1206  1206 978 52 1168.4 1012.9 32 40 17 M16 1132 1046 12 40 40 1094 1090 1500 63.5
SLR20/1094Y2  230.20.1000.013  1198 984 56 1170 1012 16 20 18 18 10.5 45.5 45.5 1095.5 1092.5 665 61.9
SLR20/1094Y3  230.20.1000.503  1198 984 56 1170 1012 32 40 18 18 10.5 45.5 45.5 1095.5 1092.5 665 61.1
SLR20/1094A  SD.1200.20.00.C  1198 984 56 1170 1012 16 20 18 φ18 1133 1055 10 46 46 1095.5 1092.5 1700 62.8
SLR20/1094  VLU 201094  1198 984 56 1170 1012 16 20 18 18 8.5 47.5 47.5 1095.5 1092.5 770 62.5
SLR20/1094Y  SD.1200.20.00.C  1198 984 56 1170 1012 16 20 φ18 φ18 1133 1055 10 46 46 1095.5 1092.5 780 62
SLR20/1094Y1  230.21.1075.013  1197 985 56 1170 1012 16 20 18 18 10.5 45.5 45.5 1095.5 1092.5 665 61.9
SLR20/1198  1198 988 57 1170 1012 18 20 φ18 φ18 1132 1052 12 45 45 1094 1090 1750 61.6
SLR30/1155  280.30.1100.013  1300 1005 90 1260 1045 36 36 22 22 19 71 71 1153.5 1156.5 1900 159
SLR30/1155Y  VLU 301155  1300 1005 90 1260 1045 36 36 22 22 19 71 71 1153 1157 3100 164
SLR30/1155Y1  SD.1300.32.00.C  1300 1005 90 1260 1045 36 36 φ22 φ22 1217 1093 19 71 71 1155 1155 2700 159
SLR30/1155Y  280.30.1175.013  1298 1007 90 1260 1045 36 36 22 22 19 71 71 1153.5 1156.5 1900 159
SLR30/1255Y2  280.30.1200.013  1400 1105 90 1360 1145 42 42 22 22 19 71 71 1253.5 1256.5 1950 172
SLR30/1255Y1  VLU 301255  1400 1105 90 1360 1145 42 42 22 22 19 71 71 1253 1257 3350 177
SLR30/1255  SD.1400.32.00.C  1400 1105 90 1360 1145 42 42 φ22 φ22 1317 1193 19 71 71 1255 1255 3000 172
SLR30/1255Y  280.30.1275.013  1398 1107 90 1360 1145 42 42 22 22 19 71 71 1253.5 1256.5 1950 172
SLR30/1355  280.30.1300.013  1500 1205 90 1460 1245 42 42 22 22 19 71 71 1353.5 1356.5 2000 186
SLR30/1355Y1  VLU 301355  1500 1205 90 1460 1245 42 42 22 22 19 71 71 1353 1357 3600 191
SLR30/1355Y2  SD.1500.32.00.C  1500 1205 90 1460 1245 42 42 φ22 φ22 1417 1293 19 71 71 1355 1355 3260 186
SLR30/1355Y  280.30.1375.013  1498 1207 90 1460 1245 42 42 22 22 19 71 71 1353.5 1356.5 2000 186
SLR30/1455Y3  280.30.1400.013  1600 1305 90 1560 1345 48 48 22 22 19 71 71 1453.5 1456.5 2050 200
SLR25/1455  280.30.1400.013  1600 1305 90 1560 1345 48 48 φ22 φ22 1517 1393 19 71 71 1456.5 1453.5 4100 200
SLR30/1455  1600 1305 90 1560 1345 48 48 φ22 φ22 1517 1393 19 71 71 1456.5 1453.5 4100 200
SLR30/1455Y1  VLU 301455  1600 1305 90 1560 1345 48 48 22 22 19 71 71 1453 1457 4000 206
SLR30/1455Y2  SD.1600.32.00.C  1600 1305 90 1560 1345 48 48 φ22 φ22 1517 1393 19 71 71 1455 1455 3440 200
SLR30/1455Y  280.30.1475.013  1598 1307 90 1560 1345 48 48 22 22 19 71 71 1453.5 1456.5 2050 200
SLR30/1700  1700 1405 90 1660 1445 20 20 22 φ22 1617 1493 19 71 71 1560 1556 3000 213

Advantages of Double Flange Slewing Bearings:


1) High Load-Carrying Capacity: With their robust design and enhanced structural rigidity, double flange slewing bearings can bear substantial axial and radial loads without compromising the stability of the system.

2) Enhanced Moment Load Capacity: These bearings exhibit exceptional moment load resistance due to their unique internal structure, making them suitable for heavy-duty applications.

3) Smooth and Precise Rotation: Double flange slewing bearings are engineered to provide smooth and precise rotational movement, enabling efficient operation of machinery and equipment.

4) Cost-Effective Solution: These bearings offer a cost-effective solution for applications that require seamless rotation, reducing the need for additional components and maintenance costs.

Common Application Areas:

1) Construction Machinery: Double flange slewing bearings find extensive application in construction machinery, such as cranes, excavators, and tower cranes, providing support for various rotating components.

2) Wind Power: Due to their ability to withstand high axial loads, double flange slewing bearings are crucial components in wind power generator systems, ensuring efficient and reliable energy conversion.

3) Material Handling Equipment: These bearings are extensively used in material handling equipment, such as forklifts, conveyor systems, and platform vehicles, facilitating smooth rotational movement and enhancing operational efficiency.

4) Mining Equipment: Double flange slewing bearings play a vital role in mining equipment, including excavators, stackers, and reclaimers, enabling safe and reliable operation in challenging environments.

5) Marine Applications: With their corrosion resistance and rugged construction, double flange slewing bearings are suitable for marine applications like ship cranes, offshore platforms, and yacht handling systems, ensuring optimal performance and durability.

Double flange slewing bearings offer a reliable and efficient solution for transmitting loads and facilitating rotational movement across various industries. Their high load-carrying capacity, enhanced moment load resistance, and cost-effective nature make them indispensable components in industries such as construction, wind power, material handling, mining, and marine applications. By understanding the advantages and application areas of double flange slewing bearings, industries can make informed decisions and harness the benefits they provide for their specific rotation requirements.