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External Gear Double Row Different Diameter Ball Slewing Bearing - High Precision & Durability

Double Row Different Diameter Ball Slewing Bearing (External Gear)

Double row different diameter ball slewing bearings (external gear) are advanced bearings designed for applications that require high load capacity and precise rotational movement, combined with an external gear mechanism. These bearings are particularly suited for heavy-duty and precision machinery, offering robustness and reliability in demanding environments. These bearings feature two rows of balls arranged to handle both axial and radial loads. The balls have different diameters, which helps distribute loads more evenly and accommodate varying load conditions. The design includes balls of different diameters to achieve a more compact and efficient load distribution, enhancing the bearing’s performance and longevity. The bearing incorporates an external gear ring that meshes with an internal pinion gear.

Product Details

Double Row Different Diameter Ball Slewing Bearing (External Gear) Introduction

Interchangeable With
Model LY Model TG Model Dimensions (mm) Installation Size (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
SNOR25/500 021.25.500.**  645 616 384 106 580 420 20 20 18 18 60 26 96 80 517 523 5 126 0.5 1210 100
SNOR25/500Y 022.25.500.**  648 616 384 106 580 420 20 20 18 18 60 26 96 80 477 483 6 105 0.5 1210 100
SNOR25/560 021.25.560.**  705 676 444 106 640 480 20 20 18 18 60 26 96 80 577 583 5 138 0.5 1340 115
SNOR25/560Y 022.25.560.**  708 676 444 106 640 480 20 21 18 18 60 26 96 80 537 543 6 115 0.5 1340 115
SNOR25/630 021.25.630.**  792 746 514 106 710 550 24 24 18 18 60 26 96 80 647 653 6 129 0.5 1530 130
SNOR25/630Y 022.25.630.**  792 746 514 106 710 550 24 24 18 18 60 26 96 80 607 613 8 96 0.5 1530 130
SNOR20/755 862.8 679 82 800 706 24 24 M16 17.5 833 50 24 78 58 771 797 6 142 852 1950 101
SNOR25/710 021.25.710.**  864 826 594 106 790 630 24 24 18 18 60 26 96 80 727 733 6 141 0.5 1730 140
SNOR25/710Y 022.25.710.**  864 826 594 106 790 630 24 24 18 18 60 26 96 80 687 693 8 105 0.5 1730 140
SNOR30/800 021.30.800.**  984 942 658 124 898 702 30 30 22 22 80 29 114 95 822 828 8 120 0.5 2300 200
SNOR30/800Y 022.30.800.**  990 942 658 124 898 702 30 30 22 22 80 29 114 95 771 778 10 96 0.5 2300 200
SNOR20/971 1078.4 895 82 1015 922 30 30 M16 17.5 1042 50 24 78 58 987 1012 8 133 1064 2500 128
SNOR30/900 021.30.900.**  1088 1042 758 124 998 802 30 30 22 22 80 29 114 95 922 928 8 133 0.5 2580 250
SNOR30/900Y 022.30.900.**  1090 1042 758 124 998 802 30 30 22 22 80 29 114 95 871 878 10 106 0.5 2580 250
SNOR30/1000 021.30.1000.**  1200 1142 858 124 1098 902 36 36 22 22 80 29 114 95 1022 1028 10 117 0.5 2860 300
SNOR30/1000Y 022.30.1000.**  1200 1142 858 124 1098 902 36 36 22 22 80 29 114 95 971 978 12 97 0.5 2860 300
SNOR30/1120 021.30.1120.**  1320 1262 978 124 1218 1022 36 36 22 22 80 29 114 95 1142 1148 10 129 0.5 3210 340
SNOR30/1120Y 022.30.1120.**  1320 1262 978 124 1218 1022 36 36 22 22 80 29 114 95 1091 1098 12 107 0.5 3210 340
SNOR20/1220 1342.4 1140 82 1270 1170 48 48 M16 17.5 58 24 78 58 1238 1261 8 165 1320 0.5 3150 178
SNOR25/1200 1378 1100 102 1290 1135 36 36 22 22 76 26 96 76 1215 1223 10 135 1350 0.5 3720 301
SNOR40/1250Y 022.40.1250.**  1498 1426 1074 160 1374 1126 40 40 26 26 90 39 150 121 1214 1218 14 104 0.5 4820 580
SNOR40/1250 021.40.1250.**  1500 1426 1074 160 1374 1126 40 40 26 26 90 39 150 121 1282 1286 12 122 0.5 4820 580
SNOR20/1385 1502.4 1305 82 1435 1335 54 54 M16 17.5 58 24 78 58 1403 1426 8 185 1480 0.5 3650 201
SNOR40/1400 021.40.1400.**  1644 1576 1224 160 1524 1272 40 40 26 26 90 39 150 121 1432 1436 12 134 0.5 5430 650
SNOR25/1461 1648 1360 102 1555 1395 40 40 22 22 76 26 96 76 1479 1484 10 162 1620 0.5 4600 381
SNOR40/1400Y 022.40.1400.**  1652 1576 1224 160 1524 1272 40 40 26 26 90 39 150 121 1364 1368 14 115 0.5 5430 650
SNOR30/1440 1653.6 1320 120 1545 1365 36 36 26 26 91 29 114 91 1460 1469 12 135 1620 0.5 5280 520
SNOR40/1600 021.40.1600.**  1848 1776 1424 160 1724 1476 45 45 26 26 90 39 150 121 1632 1636 14 129 0.5 6200 750
SNOR40/1600Y 022.40.1600.**  1856 1776 1424 160 1724 1476 45 45 26 26 90 39 150 121 1564 1568 16 113 0.5 6200 750
SNOR30/1734 1953.6 1615 120 1845 1660 44 44 26 26 91 29 114 91 1757 1763 12 160 1920 0.5 6400 636
SNOR35/1750 1985.2 1620 138 1860 1670 44 44 26 26 104 34 132 104 1779 1784 14 139 1946 0.5 7760 789
SNOR25/1800 2001.6 1700 102 1890 1735 48 48 22 22 76 26 96 76 1818 1823 12 164 1968 0.5 5750 488
SNOR40/1800 021.40.1800.**  2058 1976 1624 160 1924 1676 45 45 26 26 90 39 150 121 1832 1936 14 144 0.5 6920 820
SNOR40/1800Y 022.40.1800.**  2064 1976 1624 160 1924 1676 45 45 26 26 90 39 150 121 1764 1768 16 126 0.5 6920 820
SNOR30/2031 2253.6 1910 120 2140 1955 48 48 26 26 91 29 114 91 2054 2060 12 185 2220 0.5 7600 755
SNOR50/2000 021.50.2000.**  2304 2215 1785 190 2149 1851 48 48 33 33 120 47 178 143 2032 2038 16 141 0.5 9870 1150
SNOR50/2000Y 022.50.2000.**  2304 2215 1785 190 2149 1851 48 48 33 33 120 47 178 143 1962 1968 18 125 0.5 9870 1150
SNOR30/2235 2457.6 2115 120 2345 2160 52 52 26 26 91 29 114 91 2258 2264 12 202 2424 0.5 8600 827
SNOR35/2220 2461.2 2090 138 2335 2135 60 60 26 26 104 34 132 104 2249 2254 14 173 2422 0.5 9300 1019
SNOR40/2240 2524.8 2090 156 2375 2145 48 48 33 33 117 39 150 117 2275 2272 16 155 2480 0.5 11200 1316
SNOR50/2240 021.50.2240.**  2544 2455 2025 190 2389 2091 48 48 33 33 120 47 178 143 2272 2278 16 156 0.5 11100 1500
SNOR50/2240Y 022.50.2240.**  2556 2455 2025 190 2389 2091 48 48 33 33 120 47 178 143 2202 2208 18 139 0.5 11100 1500
SNOR50/2500 021.50.2500.**  2804 2715 2285 190 2649 2351 56 56 33 33 120 47 178 143 2532 2538 18 153 0.5 11100 1500
SNOR50/2500Y1 021.50.2500.12  2804.4 2715 2285 190 2649 2351 56 56 33 33 120 47 178 143 2538 2550 18 153 0.5 11170 2031
SNOR50/2500Y 022.50.2500.**  2820 2715 2285 190 2649 2351 56 56 33 33 120 47 178 143 2462 2468 20 138 0.5 11100 1500
SNOR35/2620 2876.8 2490 138 2735 2540 60 60 26 26 104 34 132 104 2649 2654 16 177 2832 0.5 11750 1244
SNOR40/2619 2912.4 2465 156 2755 2520 52 52 33 33 117 39 150 117 2654 2651 18 159 2862 0.5 12700 1615
SNOR40/2795 3096 2645 156 2930 2700 54 54 33 33 117 39 150 117 2830 2827 20 152 3040 0.5 13300 1723
SNOR50/2800 021.50.2800.**  3114 3015 2585 190 2949 2651 56 56 33 33 120 47 178 143 2832 2838 18 170 0.5 13900 1900
SNOR50/2800Y 022.50.2800.**  3120 3015 2585 190 2949 2651 56 56 33 33 120 47 178 143 2762 2768 20 153 0.5 13900 1900
SNOR40/2915 3216 2765 156 3050 2820 60 60 33 33 117 39 150 117 2950 2947 20 158 3160 0.5 14800 1790
SNOR50/2987 3290.4 2820 185 3130 2880 66 66 33 33 138 47 178 138 3022 3025 18 180 3240 0.5 16500 2288
SNOR40/3150 3456 3000 156 3285 3055 60 60 33 33 117 39 150 117 3185 3182 20 170 3400 0.5 16500 1969
SNOR50/3167 3470.4 3000 185 3310 3060 66 66 33 33 138 47 178 138 3202 3205 18 190 3420 0.5 17000 2431
SNOR60/3150 021.60.3150.**  3540 3428 2872 226 3338 2962 56 56 45 45 150 56 214 170 3192 3198 20 174 0.5 18700 3300
SNOR60/3150Y 022.60.3150.**  3542 3428 2872 226 3338 2962 56 56 56 56 150 56 214 170 3102 3108 22 158 0.5 18700 3300
SNOR50/3347 3650.4 3180 185 3490 3240 72 72 33 33 138 47 178 138 3382 3385 18 200 3600 0.5 18000 2566
SNOR50/3567 3866.4 3400 185 3710 3460 78 78 33 33 138 47 178 138 3602 3605 18 212 3816 0.5 19250 2702
SNOR60/3550Y 022.60.3550.**  3938 3828 3272 226 3738 3362 56 56 56 56 150 56 214 170 3502 3508 22 176 0.5 21100 3700
SNOR60/3550 021.60.3550.**  3940 3828 3272 226 3738 3362 56 56 56 56 150 56 214 170 3592 3598 20 194 0.5 21100 3700
SNOR50/3747 4046.4 3580 185 3890 3640 84 84 33 33 138 47 178 138 3782 3785 18 222 3996 0.5 20250 2837
SNOR60/4000 021.60.4000.**  4400 4278 3722 226 4188 3812 60 60 60 60 150 56 214 170 4042 4048 22 197 0.5 23700 4200
SNOR60/4000Y 022.60.4000.**  4400 4278 3722 226 4188 3812 60 60 60 60 150 56 214 170 3952 3958 25 173 0.5 23700 4200
SNOR50/4140 4456 3970 3970 4285 4030 90 90 33 33 140 47 178 140 4175 4178 20 220 4400 0.5 22500 3282
SNOR60/4500 021.60.4500.**  4884 4778 4222 226 4688 4312 60 60 60 60 150 56 214 170 4542 4548 22 219 0.5 26700 4700
SNOR60/4500Y 022.60.4500.**  4900 4778 4222 226 4688 4312 60 60 60 60 150 56 214 170 4452 4458 25 193 0.5 26700 4700
Rotational support bearings with external teeth play a vital role in various applications, including but not limited to double-row ball bearings. In this article, we will explore the advantages of these bearings and discuss their common applications.


Advantages:

1. Enhanced Load Capacity: The external teeth design of the rotational support bearings significantly improves their load-bearing capacity. By distributing the load more evenly, these bearings can withstand higher radial and axial loads, ensuring stability and durability.

2. Increased Efficiency: The precise engineering and design of the external teeth enable smoother rotation and reduced frictional losses. This results in enhanced operational efficiency, allowing for higher rotational speeds and reduced energy consumption.

3. Improved Alignment: Rotational support bearings with external teeth offer superior alignment capabilities. The teeth engage with mating features on the accompanying components, ensuring proper positioning and alignment. This feature is particularly advantageous in applications where precise rotational control is essential.

4. Ease of Installation: These bearings are designed for easy installation and removal. They come equipped with mounting features that simplify the assembly process, saving time and effort.

Common Applications

1. Wind Power Generation: Rotational support bearings with external teeth are extensively used in wind turbines. The exceptional load-bearing capacity and improved alignment provided by these bearings ensure reliable operation and prolonged service life, even under harsh environmental conditions.

2. Robotics and Industrial Automation: In robotic systems and industrial automation equipment, precise control and smooth rotational movement are critical. The use of rotational support bearings with external teeth ensures accurate positioning, low friction, and high-speed performance in various robotic arms, manipulators, and automated machinery.

3. Construction and Heavy Machinery: Double-row ball bearings equipped with rotational support bearings and external teeth find widespread application in construction and heavy machinery. These bearings provide stability, load-bearing capacity, and improved alignment, making them ideal for use in cranes, excavators, and other heavy-duty equipment.

4. Automotive Industry: The automotive industry benefits greatly from the use of rotational support bearings with external teeth. These bearings are commonly employed in the steering systems, axles, and differentials of vehicles, ensuring smooth and reliable rotation, even under challenging road conditions.

Rotational support bearings with external teeth offer substantial advantages in terms of load capacity, operational efficiency, alignment, and ease of installation. Their applications span across various industries, including wind power generation, robotics, construction, and the automotive industry. With their exceptional performance and durability, these bearings play a crucial role in achieving optimal operational performance in numerous mechanical systems.