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No Gear Three-row Cross Roller Slewing Bearing - Precision & High Load Capacity

Three-row Cross Roller Slewing Bearing (No Gear)

Three-row cross roller slewing bearings (no gear) are a type of large-diameter bearing designed to handle high loads with high precision, but they lack an integrated gear mechanism. These bearings are known for their robust load-carrying capacity and smooth rotational performance, making them suitable for various demanding applications where precise movement and heavy load support are required. Features three rows of cylindrical rollers arranged at 90-degree angles to each other. This configuration allows the bearing to support axial, radial, and tilting moment loads simultaneously. Unlike gear-integrated bearings, these models do not include an internal or external gear. They are used in applications where external gearing is not needed, or where an external gear is separately integrated into the system. The rollers are arranged in a cross-pattern, which helps distribute loads evenly and reduces friction, ensuring smooth rotation.

Product Details

Three-row Cross Roller Slewing Bearing (No Gear) Introduction:

Crossed roller bearings with three rows are a type of specialized bearing that find extensive use in various industries. This article aims to explain the concept, outline their numerous advantages, and explore the common areas where they are employed.

Explanation

Crossed roller bearings with three rows are a type of rolling element bearing designed to handle both radial and axial loads. They consist of two cylindrical rollers arranged crosswise at right angles to each other, with a third row of rollers positioned between them. This unique configuration allows for enhanced load distribution and improved rotational accuracy.


Interchangeable With
Model LY 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 d b h B C Di da m z do x Dynamic Static
HU25/500  130.25.500.**  634 366 148 598 402 24 24 18 18 10 116 138 526 537 2750 355 224
HU25/560  130.25.560.**  694 426 148 658 462 24 24 18 18 10 116 138 586 597 3080 399 240
HU25/630  130.25.630.**  764 496 148 728 532 28 28 18 18 10 116 138 656 667 3450 451 270
HU25/710  130.25.710.**  844 576 148 808 612 28 28 18 18 10 116 138 736 747 3880 517 300
HU30/800  130.32.800.**  964 636 182 920 680 36 36 22 22 10 142 172 830 841 5490 712 500
HU30/900  130.32.900.**  1064 736 182 1020 780 36 36 22 22 10 142 172 930 941 6190 808 600
HU28/998  1180 800 166 1114 866 24 24 M30 M30 21 136 145 962 965 7500 581
HU30/1000  130.32.1000.**  1164 836 182 1120 880 40 40 22 22 10 142 172 1030 1041 6890 903 680
HU30/1120  130.32.1120.**  1284 956 182 1240 1000 40 40 22 22 10 142 172 1150 1161 7680 1020 820
HU30/1250  130.40.1250.**  1445 1055 220 1393 1107 45 45 26 26 10 170 210 1290 1300 11100 1460 1200
HU40/1400  130.40.1400.**  1595 1205 220 1543 1257 45 45 26 26 10 170 210 1440 1450 12400 1650 1300
HU40/1600  130.40.1600.**  1795 1405 220 1743 1457 48 48 26 26 10 170 210 1640 1650 14200 1900 1520
HU40/1800  130.40.1800.**  1995 1605 220 1943 1657 48 48 26 26 10 170 210 1840 1850 15900 2150 1750
HU45/2000  130.45.2000.**  2195 1816 150 2127 1885 60 60 33 33 13 117 137 2041 16900 663 1120
HU45/2240  130.45.2240.**  2461 2019 231 2395 2085 60 60 33 33 12 177 219 2273 2295 23100 2680 2700
HU45/2500  130.45.2500.**  2721 2279 231 2655 2345 72 72 33 33 12 177 219 2533 2555 25800 3020 3000
HU45/2800  130.45.2800.**  3021 2579 231 2955 2645 72 72 33 33 12 177 219 2833 2855 28800 3390 3400
HU50/3150  130.50.3150.**  3432 2868 270 3342 2958 72 72 45 45 12 205 258 3196 3213 35900 3810 5000
HU50/3150Y  130.50.3150.12K  3432 2868 270 3342 2958 72 72 45 45 12 220 258 3086 3103 37350 5020 4900
HU50/3550  130.50.3550.**  3832 3268 270 3742 3358 72 72 45 45 12 202 258 3596 3613 40400 4310 5600
HU70/3975  3-913G  4300 3650 355 4210 3750 90 90 48 48 65700 13300 9503
HU50/4000  130.50.4000.**  4282 3718 270 4192 3908 80 80 45 45 12 202 258 4046 4063 45600 4870 6400
HU50/4500  130.50.4500.40  4782 4218 270 4692 4308 80 80 45 45 12 202 258 4546 4563 54450 5800 6942

Advantages:


1. High Rigidity: The three-row arrangement provides increased rigidity, enabling the bearing to withstand heavy loads and maintain stability, particularly in applications with high vibration or shock.

2. Compact Design: Crossed roller bearings with three rows are designed to be compact, making them ideal for installations where space is limited.

3. Superior Accuracy: These bearings offer excellent rotational accuracy due to the preloading of the rollers. This precision makes them suitable for applications requiring precise positioning and smooth motion.

4. High Load Capacity: With their unique design, these bearings can accommodate both radial and axial loads simultaneously, making them suitable for various heavy-duty applications.

5. Low Friction: The roller-to-race contact of crossed roller bearings results in low friction, ensuring efficient power transmission and reducing energy consumption.

Common Applications:

1. Robotics: Three-row crossed roller bearings are commonly used in robotic arms, enabling precise and smooth motion, especially in high-speed pick-and-place applications.

2. Machine Tools: These bearings find extensive use in machine tool spindle applications, providing exceptional rigidity, axial stiffness, and positional accuracy.

3. Medical Equipment: Crossed roller bearings with three rows are often employed in medical equipment such as CT scanners, radiation therapy machines, and diagnostic imaging equipment due to their high precision and reliability.

4. Industrial Automation: They are widely used in various industrial automation systems, including packaging machinery, conveyors, and material handling equipment, enhancing efficiency and durability.

5. Aerospace: Crossed roller bearings with three rows are utilized in aerospace applications, such as satellite antennas, military defense systems, and aircraft cabin mechanisms, thanks to their lightweight design and high load capacity.

Crossed roller bearings with three rows offer numerous advantages, including high rigidity, compactness, superior accuracy, high load capacity, and low friction. These bearings find extensive applications in various industries, including robotics, machine tools, medical equipment, industrial automation, and aerospace. Their combination of precision, durability, and versatility makes them a preferred choice for demanding applications that require both radial and axial load support.