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Internal Gear External Flange Slewing Bearing - Robust & Versatile Solutions

Internal Gear External Flange Slewing Bearing

Internal gear external flange slewing bearings are specialized bearings designed to provide high load capacity and precise rotational movement, with the added feature of an external flange. The internal gear mechanism allows for efficient power transmission, while the external flange facilitates easy mounting and integration into various systems. The bearing features an internal gear ring that meshes with an external pinion gear. This internal gear design allows for efficient and compact power transmission within the system. The external flange provides a mounting surface that makes it easier to integrate the bearing into machinery and equipment. It typically includes bolt holes or other features to facilitate secure attachment. Depending on the design, the bearing may use balls or rollers arranged to handle axial, radial, and moment loads effectively.

Product Details

Internal Gear External Flange Slewing Bearing Introduction

The internal tooth external flange slewing bearing, also known as the toothed ring bearing, is a vital component in various industrial applications. This article aims to provide a comprehensive understanding of its structure, advantages, and prevalent areas of application.

Structure of Internal Tooth External Flange Slewing Bearing:

The internal tooth external flange slewing bearing consists of an inner ring, an outer ring, rolling elements, internal teeth, and an external flange. The inner and outer rings enable rotational movement, while the rolling elements minimize friction and carry radial and axial loads. The internal teeth engage with a mating gear, ensuring precise motion transmission and control. The external flange provides additional stability and support to the overall structure.

Interchangeable With
Model INA 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
SLIR15/280  340 216 39 324 252 20 20 M6 M6 310 238 30 5 34 34 279 277 4 56 224 300 10
SLIR20/414Y  VLI200414N ZT  518 325 56 490 375 8 12 φ18 M12 458.5 350 40 11.5 44.5 47.5 415.5 412.5 5 67 335 600 28.5
SLIR20/414  VLI 20 0414N ZT RL2  516 325 56 490 375 8 12 φ18 M12 456 350 40 11.5 44.5 47.5 415.5 412.5 5 67 335 300 36.3
SLIR20/414  VLI200414N  518 325 56 490 375 8 12 18 M12 350 40 8.5 44.5 47.5 415.5 412.5 5 67 335 295 27.5
SLIR20/414  232.20.0400.013  518 326.5 56 490 375 8 12 18 M12 45.5 10.5 45.5 45.5 415.5 412.5 5 67 335 250 27.1
SLIR20/414Y  232.20.0400.503  518 326.5 56 490 375 16 12 18 M12 45.5 10.5 45.5 45.5 415.5 412.5 5 67 335 250 26.9
SLIR20/414Y1  232.21.0475.013  517 326.5 56 490 375 8 12 18 M12 45.5 10.5 45.5 45.5 415.5 411 5 67 335 250 27.1
SLIR20/414A  I.505.20.00.C  518 326.5 56 490 375 8 12 φ18 M12 453 46 10 46 46 415.5 412.5 5 67 335 500 35.4
SLIR20/544Y  VLI200544N ZT  648 444 56 620 505 10 16 φ18 M12 588.5 44.5 11.5 44.5 47.5 545.5 542.5 6 76 456 790 40.6
SLIR20/544Y3  VLI200544N  648 444 56 620 505 10 16 18 M12 44.5 11.5 44.5 47.5 545.5 542.5 6 76 456 385 38
SLIR20/544Y2  232.20.0500.013  648 445.2 56 620 505 10 16 18 M12 45.5 10.5 45.5 45.5 545.5 542.5 6 76 456 330 36.9
SLIR20/544Y4  232.20.0500.503  648 445.2 56 620 505 20 16 18 M12 45.5 10.5 45.5 45.5 545.5 542.5 6 76 456 330 36.7
SLIR20/544Y1  232.21.0575.013  647 445.2 56 620 505 10 16 18 M12 45.5 10.5 45.5 45.5 545.5 541 6 76 456 330 36.9
SLIR20/544  I.650.20.00.C  648 445.2 56 620 505 10 16 φ18 M12 583 46 10 46 46 545.5 542.5 6 76 456 700 40.2
SLIR20/644Y  VLI200644N ZT  748 546 56 720 605 12 18 φ18 M12 688.5 44.5 11.5 44.5 47.5 645.5 642.5 6 93 558 900 47.4
SLIR20/644Y2  VLI200644N  748 546 56 720 605 12 18 18 M12 44.5 8.5 44.5 47.5 645.5 642.5 6 93 558 455 45
SLIR20/644Y3  232.20.0600.013  748 547.2 56 720 605 12 18 18 M12 45.5 10.5 45.5 45.5 645.5 642.5 6 93 558 390 43.7
SLIR20/644Y  232.20.0600.503  748 547.2 56 720 605 24 18 18 M12 45.5 10.5 45.5 45.5 645.5 642.5 6 93 558 390 43.4
SLIR20/644Y1  .  232.21.0675.013  747 547.2 56 720 605 12 18 18 M12 45.5 10.5 45.5 45.5 645.5 641 6 93 558 390 43.7
SLIR20/644  I.750.20.00.C  748 547.2 56 720 605 12 18 φ18 M12 683 46 10 46 46 645.5 642.5 6 93 558 780 53.3
SLIR20/744Y  VLI200744N ZT  848 648 56 820 705 12 20 φ18 M12 788.5 44.5 11.5 44.5 47.5 745.5 742.5 6 110 660 530 54
SLIR20/744Y3  VLI200744N  848 648 56 820 705 12 20 18 M12 44.5 8.5 44.5 47.5 745.5 742.5 6 110 660 530 51.5
SLIR20/744Y2  232.20.0700.013  848 649.2 56 820 705 12 20 18 M12 45.5 10.5 45.5 45.5 745.5 742.5 6 110 660 450 51.1
SLIR20/744Y4  232.20.0700.503  848 649.2 56 820 705 24 20 18 M12 45.5 10.5 45.5 45.5 745.5 742.5 6 110 660 450 50.8
SLIR20/744Y1  232.21.0775.013  847 649.2 56 820 705 12 20 18 M12 45.5 10.5 45.5 45.5 745.5 741 6 110 660 450 51.1
SLIR20/744  I.850.20.00.C  848 649.2 56 820 705 12 20 φ18 M12 783 46 10 46 46 745.5 742.5 6 110 660 910 63.1
SLIR20/844Y  VLI200844N ZT  948 736 56 920 805 14 20 φ18 M12 888.5 44.5 11.5 44.5 47.5 845.5 842.5 8 94 752 1200 65.2
SLIR20/844Y2  VLI200844N  948 736 56 920 805 14 20 18 M12 44.5 8.5 44.5 47.5 845.5 842.5 8 94 752 600 61.5
SLIR20/844Y3  232.20.0800.013  948 737.6 56 920 805 14 20 18 M12 45.5 10.5 45.5 45.5 845.5 842.5 8 94 752 510 61.6
SLIR20/844Y4  232.20.0800.503  948 737.6 56 920 805 28 20 18 M12 45.5 10.5 45.5 45.5 845.5 842.5 8 94 752 510 61.3
SLIR20/844Y1  232.21.0875.013  947 737.6 56 920 805 14 20 18 M12 45.5 10.5 45.5 45.5 845.5 841 8 94 752 510 61.6
SLIR20/844  I.950.20.00.C  948 737.6 56 920 805 14 20 φ18 M12 883 46 10 46 46 845.5 842.5 8 94 752 1030 76.6
SLIR30/955  VLI300955N  1100 810 90 1060 894 30 30 22 M20 71 19 71 71 953 957 10 83 830 2550 164
SLIR30/955Y2  282.30.0900.013  1100 812 90 1060 894 30 30 22 M20 71 19 71 71 953.5 956.5 10 83 830 1750 159
SLIR30/955Y  282.30.0975.013  1098 812 90 1060 894 30 30 22 M20 71 19 71 71 953.5 955 10 83 830 1750 159
SLIR30/955Y1  I.1100.32.00.C  1100 812 90 1060 894 30 30 φ12 M20 1017 71 19 71 71 955 955 10 83 830 2250 159
SLIR20/944Y  VLI200944N ZT  1048 840 56 1020 905 16 22 φ18 M12 988.5 44.5 11.5 44.5 47.5 945.5 942.5 8 107 856 1350 71
SLIR20/944Y2  VLI200944N  1048 840 56 1020 905 16 22 18 M12 44.5 8.5 44.5 47.5 945.5 942.5 8 107 856 670 67.5
SLIR20/944Y3  232.20.0900.013  1048 841.6 56 1020 905 16 22 18 M12 45.5 10.5 45.5 45.5 845.5 942.5 8 107 856 570 65.8
SLIR20/944Y4  232.20.0900.503  1048 841.6 56 1020 905 32 22 18 M12 45.5 10.5 45.5 45.5 945.5 942.5 8 107 856 570 65.4
SLIR20/944Y1  232.21.0975.013  1047 841.6 56 1020 905 16 22 18 M12 45.5 10.5 45.5 45.5 845.5 941 8 107 856 570 65.8
SLIR20/944  I.1050.20.00.C  1048 841.6 56 1020 905 16 22 φ18 M12 983 46 10 46 46 945.5 942.5 8 107 856 1440 79.8
SLIR30/1055  VLI301055N  1200 910 90 1160 994 30 30 22 M20 71 19 71 71 1053 1057 10 93 930 2800 181
SLIR30/1055Y2  282.30.1000.013  1200 912 90 1160 994 30 30 22 M20 71 19 71 71 1053.5 1056.5 10 93 930 1840 176
SLIR30/1055Y  282.30.1075.013  1198 912 90 1160 994 30 30 22 M20 71 19 71 71 1053.5 1055 10 93 930 1840 176
SLIR30/1055Y1  I.1200.32.00.C  1200 912 90 1160 994 30 30 φ12 M20 1117 71 19 71 71 1055 1055 10 93 930 2500 176
SLIR20/1094Y  VLI201094N ZT  1198 984 56 1170 1055 16 24 φ18 M12 1138.5 44.5 11.5 44.5 47.5 1095.5 1092.5 8 125 1000 2000 80
SLIR20/1094Y3  VLI201094N  1198 984 56 1170 1055 16 24 18 M12 44.5 8.5 44.5 47.5 1095.5 1092.5 8 125 1000 770 81.5
SLIR20/1094Y2  232.20.1000.013  1198 985.6 56 1170 1055 16 24 18 M12 45.5 10.5 45.5 45.5 1095.5 1092.5 8 125 1000 665 80.7
SLIR20/1094Y4  232.20.1000.503  1198 985.6 56 1170 1055 32 24 18 M12 45.5 10.5 45.5 45.5 1095.5 1092.5 8 125 1000 665 80.3
SLIR20/1094Y1  232.21.1075.013  1197 985.6 56 1170 1055 16 24 18 M12 45.5 10.5 45.5 45.5 1095.5 1091 8 125 1000 665 80.7
SLIR20/1094  I.1200.20.00.C  1198 985.6 56 1170 1055 16 24 φ18 M12 1133 46 10 46 46 1095.5 1092.5 8 125 1000 1700 101
SLIR20/1091  1198 986 56 1170 1055 16 24 φ18 M12 1134 46 10 46 46 1093 1089 8 125 1000 1740 89
SLIR30/1155  VLI301155N  1300 1010 90 1260 1094 36 36 22 M20*40 71 19 71 71 1153 1157 10 103 1030 3100 198
SLIR30/1155Y2  282.30.1100.013  1300 1012 90 1260 1094 36 36 22 M20 71 19 71 71 1153.5 1156.5 10 103 1030 1900 192
SLIR30/1155Y  282.30.1175.013  1298 1012 90 1260 1094 36 36 22 M20 71 19 71 71 1153.5 1155 10 103 1030 1900 192
SLIR30/1155Y1  I.1300.32.00.C  1300 1012 90 1260 1094 36 36 φ12 M20 1217 71 19 71 71 1155 1155 10 103 1030 2700 192
SLIR30/1255  VLI301255N  1400 1110 90 1360 1194 42 42 22 M20*40 71 19 71 71 1253 1257 10 113 1130 3350 215
SLIR30/1255Y2  282.30.1200.013  1400 1112 90 1360 1194 42 42 22 M20 71 19 71 71 1253.5 1256.5 10 113 1130 1950 208
SLIR30/1255Y  282.30.1275.013  1398 1112 90 1360 1194 42 42 22 M20 71 19 71 71 1253.5 1255 10 113 1130 1950 208
SLIR30/1255Y1  I.1400.32.00.C  1400 1112 90 1360 1194 42 42 φ12 M20 1317 71 19 71 71 1255 1255 10 113 1130 3000 208
SLIR30/1355Y1  VLI301355N  1500 1210 90 1460 1294 42 42 22 M20*40 71 19 71 71 1353 1357 10 123 1230 3600 233
SLIR30/1355Y2  282.30.1300.013  1500 1212 90 1460 1294 42 42 22 M20 71 19 71 71 1353.5 1356.5 10 123 1230 2000 226
SLIR30/1355Y  282.30.1375.013  1498 1212 90 1460 1294 42 42 22 M20 71 19 71 71 1353.5 1355 10 123 1230 2000 226
SLIR30/1355  I.1500.32.00.C  1500 1212 90 1460 1294 42 42 φ12 M20 1417 71 19 71 71 1355 1355 10 123 1230 3200 226
SLIR30/1455  282.30.1400.013  1600 1310 90 1560 1394 48 48 22 M20 71 19 71 71 1453.5 1456.5 10 133 1330 2050 243
SLIR30/1455Y  282.30.1475.013  1598 1310 90 1560 1394 48 48 22 M20 71 19 71 71 1453.5 1455 10 133 1330 2050 243
SLIR30/1455Y1  I.1600.32.00.C  1600 1310 90 1560 1394 48 48 φ12 M20 1517 71 19 71 71 1455 1455 10 133 1330 3380 243
SLIR30/1455Y2  VLI301455N  1600 1310 90 1560 1394 48 48 22 M20*40 71 19 71 71 1453 1457 10 133 1330 4000 251

Advantages of Internal Gear External Flange Slewing Bearing:


1. High Load Carrying Capacity: The design of the internal tooth external flange slewing bearing allows it to accommodate significant radial, axial, and moment loads, making it suitable for heavy-duty applications.

2. Compact Structure: With its compact design, this type of bearing requires minimal installation space, allowing for efficient and space-saving machinery designs.

3. Smooth and Precise Rotation: The internal teeth and corresponding mating gears ensure precise motion control, resulting in smooth and accurate rotational movement.

4. Enhanced Rigidity: The external flange provides additional support, increasing the overall rigidity of the slewing bearing and minimizing deflection.

5. Long Service Life: Proper material selection, heat treatment, and lubrication contribute to the extended service life of internal tooth external flange slewing bearings, improving reliability and reducing maintenance costs.

Common Applications of Internal Gear External Flange Slewing Bearing:

1. Construction Machinery: From excavators and cranes to cement mixers and concrete pumps, internal tooth external flange slewing bearings are extensively used in the construction industry. Their ability to withstand heavy loads and withstand harsh operating conditions makes them ideal for such applications.

2. Wind Turbines: In wind energy generation, internal tooth external flange slewing bearings are employed in the yaw and pitch systems. They ensure precise control of rotor positioning and withstand the forces exerted by wind gusts and high rotational speeds.

3. Industrial Machinery: Many types of industrial machinery, such as rotating platforms, turntables, and assembly line equipment, rely on the smooth and controlled rotation provided by internal tooth external flange slewing bearings.

4. Material Handling: Cranes, hoists, and conveyor systems often incorporate these bearings to facilitate efficient material handling in industries like mining, logistics, and manufacturing.

5. Robotic Applications: The compact design, high load-carrying capacity, and precise motion control of internal tooth external flange slewing bearings make them suitable for robotic arms and manipulators.

The internal tooth external flange slewing bearing plays a crucial role in various industries by enabling smooth, controlled rotation and withstanding heavy loads. Its advantages, including compactness, high load capacity, and enhanced rigidity, make it a preferred choice for numerous applications. Whether in construction machinery, wind turbines, industrial machinery, material handling, or robotic applications, this type of bearing ensures reliable and efficient operation, contributing to the success of various industries.