RU Crossed Roller Bearings, Since the mounting holes are provided the model does not require a presser flange or housing. In addition, because it has an integrated inner/outer ring structure and is equipped with washers, its performance is minimally affected by the mounting procedure, ensuring stable rotation accuracy and torque. This model can be used for both inner-ring rotation and outer-ring rotation.

The structure of the crossed cylindrical roller bearing is divided into three types of outer ring split type, inner ring split type and inner and outer ring integrated type. The rolling elements are short cylindrical rollers arranged at 90 ° to each other in a V-shaped raceway. The rollers are separated by a spacer.

This structural design allows a single bearing to withstand axial loads, radial loads, and overturning moments. At the same time, bearings have high rigidity, high rotation accuracy and high bearing capacity, so they are suitable for rotary joints of industrial robots, rotary tables of machining centers, precision rotary tables, medical machines, measuring instruments, etc.

Because the rollers are arranged in a cross, only one set of crossed roller collars can bear the load in all directions. Compared with the traditional model, the rigidity is increased by 3 to 4 times. Due to its special structure, it is usually used as an articulated bearing in industrial robots.

1. RU Crossed Roller Bearings Structure

With the Cross-Roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90゜ V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads.Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings.

RU66

2.RU Crossed Roller Bearings Features

Since this series bearings with mounting holes already,they do not need flange or  housing.In addition,because it has anintergrated inner/outer ring structureand is equipped with washers,its performance is minimally affected by the mounting procedure,ensuring stable rotation accurancy and torque. 

  • High precision: P5, P4 precision
  • High rigidity: This series bearing have preload
  • High load：This series bearing can bear double-direction axial load, radial load and tilting moment
  • Small size: This series bearing can save space for machine tools
RU178X

3. RU Crossed Roller Bearings Applications

Widely used on high precision rotary table, robot joints, rotating units, sophisticated medical equipments, and measurement instruments.

RU series crossed roller bearings

4.RU Crossed Roller Bearings Video Introduction

播放有关的视频 RU28 RU42 RU57 RU66 RU85 RU124 RU148 RU178 RU228 RU445 Crossed Roller Bearing

5. If You Need Custom Made, Pls Contact Us

LEAVE MESSAGE

6. RU Crossed Roller Bearings Escription

RU blueprint
RU bearing blueprint
LKPB NumberMain dimensions Shoulder heightBasic load rating（radial） Weight
IDODPCD BOil holermin
dDdp βd1ds DhC/kNCo/kN kg
RU2810 5228 80.3 2429.5 2.924 0.12
RU4220 7041.512 3.10.637 477.358.35 0.29
RU6635 9566 153.1 0.659 7417.5 22.30.62
RU8555 1208515 3.10.679 9320.329.5 1
RU124(G)80 165124 223.1 1114 13433.1 50.92.6
RU124X
RU148(G)90 210147.525 3.11.5133 16249.176.8 4.9
RU148X
RU178(G)115 240178 283.1 1.5161 19580.3 1356.8
RU178X
RU228(G)160 295227.535 62208 246104172 11.4
RU228X
RU297(G)210 380297.3 406 2.5272 320156 28121.3
RU297X
RU445(G)350 540445.445 62.5417 473222473 35.4

7. RU Crossed Roller Bearings shop

RU Crossed Roller Bearing

RU Series Cross Roller Bearing (11)

About LKPB Bearing Company

China Precision Crossed Roller Bearings Manufacturer - LKPB

Luoyang LIKE Precision Machinery Co., Ltd – LKPB®, Located in Luoyang, China, Established in 2013 with a registered capital of 5 million, We are a professional bearing manufacturer.

LKPB strictly follows the ISO9001 quality system requirements for product quality control, we have a strong technical team to accept processing of non-standard precision bearings of P5, P4, P2 and VSP level of accuracy. The products inner diameter size range is φ20mm-φ2000mm.

We have established long term co-operation with a number of the world’s leading machine tool and robotics companies, the products can completely replace of INA/IKO/THK/FAG/SKF/KAYDON and other brands. We believe that cooperating with us will exceed your expectations.

  1. Rotary Table Bearings ( YRT, YRTC, YRTS, YRTM, ZKLDF Series) ;
  1. Cross Roller Bearings ( RA/RA-C, RAU, RB, RU, RW, RE, SX, XU, XV, XSU, XR/JXR, CRB/CRBC, CRBF/CRBFV, CRBH/CRBHV, CRBS/CRBSV, CRBT/CRBTF Series);
  1. Thin Section Bearings ( KAA, KA, KB, KC, KD, KF, KG, JHA, JA, JB, JG, JU Series);  
  1. Robot Reducer Bearings (CSF/CSG, SHF/SHG, CSD Series, RV Reducer Bearings and Flexible Bearings F, 3E Series);
  1. Angular Contact Ball Bearings ( 718, 719, 70, 72, 2344/2347 Series);  
  1. Ball Screw Support Bearings ( ZKLF/ZKLN, ZARF/ZARN Series);
  1. Slewing Ring ( Cross Roller, Four-Point Contact, Eight-Point Contact Same Path, Eight-Point Contact Different Path, Three-row roller and Flanged Series);
  1. Hollow Rotary Platform Bearings ( ZK Series).
 

For expert guidance in meeting your specific requirements, reach out to our knowledgeable team. Experience firsthand how our precision solutions can elevate your machinery’s efficiency and durability. Contact us today!

LKPB With more than 10 years of production experience

Supporting OEM service; 50 days return service; 7*24 hours technical support; Accept non-standard customization; Maximum 24 months product warranty

GET A QUOTE