RU Crossed Roller Bearings

RU crossed roller bearing series(Integrated Inner/Outer Ring type) 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. 

RU crossed roller bearing can be used for both inner-ring rotation and outer-ring rotation.

RU crossed roller bearing characteristics:

1. High precision: P4 precision, P2 precision

2. High rigidity: This series bearing have preload

3. High load:This series bearing can bear double-direction axial load, radial load and tilting moment

4. Small size: This series bearing can save space for machine tools

 shaft diameter (mm)  Identification number  Main dimensions        Shoulder height  Basic load rating(radial)  weight
      inner ring    outer ring  Roller   pitch circle diameter dp width  Greasing hole Chamfer ds Dh C C0 Kg
d D (mm) B B1 φ r(min) KN KN
(mm) (mm) (mm)
55 RU85 55 120 85 15 3.1 0.6 79 93 20.3 29.5 1
80 RU124(G) 80 165 124 22 3.1 1 114 134 33.1 50.9 2.6
RU124X
90 RU148(G) 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 4.9
RU148X
115 RU178(G) 115 240 178 28 3.1 1.5 161 195 80.3 135 6.8
RU178X
160 RU228(G) 160 295 227.5 35 6 2 208 246 104 172 11.4
RU228X
210 RU297(G) 210 380 297.3 40 6 2.5 272 320 156 281 21.3
RU297X
350 RU445(G) 350 540 445.4 45 6 2.5 417 473 222 473 35.4