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RU Series Cross Roller Bearing
  • RU28
  • RU42
  • RU57
  • RU66
  • RU85
  • RU124(G)
  • RU124X
  • RU148(G)
  • RU148X
  • RU178(G)
  • RU Series Cross Roller Bearing
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  •  
    • Description
    • Structure
    • Specification

    Cross-Roller Ring Series

    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.

    Features

    Compact, Highly Rigid Swivel Bearings ,Achieving a Superb Rotation Accuracy

    Applications

    It is optimal for applications such as joints and swiveling units of industrial robots,

    swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines

    Cross roller Bearings with different Structure

    Moldel RU series(intergrated inner ring and outer ring)


    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. 

    This model can be used for both inner-ring rotation and outer ring is required.

    Bearings Selections



    Using Precautions






    RU series
    Bearings Model Boundary Dimensions Shoulder height Basic load rating(radial) Relation between the mounting holes Weight
    ID  OD  PCD  B  Oil hole rmin Inner ring Outer ring
    d D dp B d1 ds Dh Cr/kN Cor/kN PCD1 mounting holes PCD2 mounting holes kg
    RU28 10 52 28 8 3.1 0.3 24 29.5 2.9 3.4 16 4-M3 through 42 6-ф3.4 throug ф6.5 counterbore depth3.3 0.12
    RU42 20 70 41.5 12 3.1 0.3 37 47 7.35 8.35 28 6-M3 through 57 6-ф3.4 throug ф8-6.5 counterbore depth3.3 0.29
    RU57 25 80 57 12 3.1 0.6 47 58 8.61 10.6 35 6-M3 through 67 6-ф3.4 throug ф8-6.5 counterbore depth3.3 0.4
    RU66 35 95 66 15 3.1 0.6 59 74 17.5 22.3 45 8-M4 through 83 8-ф4.5 throug ф8 counterbore depth4.4 0.62
    RU85 55 120 85 15 3.1 0.6 79 93 20.3 29.5 65 8-M5 through 105 8-ф5.5 throug ф9.5 counterbore depth5.4 1
    RU124(G) 80 165 124 22 3.1 1 114 134 33.1 50.9 97 10-ф5.5 throug ф9.5 counterbore depth5.4 148 10-ф5.5 throug ф9.5 counterbore depth5.4 2.6
    RU124X 80 165 124 22 3.1 1 114 134 33.1 50.9 97 10-M5 through 148 10-ф5.5 throug ф9.5 counterbore depth5.4 2.6
    RU148(G) 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 112 12-ф9 throug ф14 counterbore depth 8.6 187 12-ф9 throug ф14 counterbore depth 8.6 4.9
    RU148X 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 112 12-M8 through 187 12-ф9 throug ф14 counterbore depth 8.6 4.9
    RU178(G) 115 240 178 28 3.1 1.5 161 195 80.3 135 139 12-ф9 throug ф14 counterbore depth 8.6 217 12-ф9 throug ф14 counterbore depth 8.6 6.8
    RU178X 115 240 178 28 3.1 1.5 161 195 80.3 135 139 12-M8 through 217 12-ф9 throug ф14 counterbore depth 8.6 6.8
    RU228(G) 160 295 227.5 35 6 2 208 246 104 172 184 12-ф11 throug ф17.5 counterbore depth 10.8 270 12-ф11 throug ф17.5 counterbore depth 10.8 11.4
    RU228X 160 295 227.5 35 6 2 208 246 104 172 184 12-M10 through 270 12-ф11 throug ф17.5 counterbore depth 10.8 11.4
    RU297(G) 210 380 297.3 40 6 2.5 272 320 156 281 240 16-ф14 throug ф20 counterbore depth 13 350 16-ф14 throug ф20 counterbore depth 13 21.3
    RU297X 210 380 297.3 40 6 2.5 272 320 156 281 240 16-M12 through 350 16-ф14 throug ф20 counterbore depth 13 21.3
    RU445(G) 350 540 445.4 45 6 2.5 417 473 222 473 385 24-ф14 throug ф20 counterbore depth 13 505 24-ф14 throug ф20 counterbore depth 13 35.4
    RU445X 350 540 445.4 45 6 2.5 417 473 222 473 385 24-M12 through 505 24-ф14 throug ф20 counterbore depth 13 35.4
    Luoyang Yadian Machinery Equipment Co.ltd