• RA19013 cross roller bearing
  • THK RA19013 bearing
  • RA19013 slewing ring bearing structure
  • Part NO.

    Open type:RA19013

  • Dimension




  • Mounting

  • Basic Load Ratings



  • Equivalent Model


  • Features
  • Mounting
  • RA19013 cross roller bearing specifications:

    Type of guide Roller
    Space retainer Yes
    Material GCr15
    Standard lubrication method Grease lubrication
    Oil hole Yes
    Sealing Oil seal at both sides
    Radial clearance CC0, C0
    Rotation accuracy Radial/axial runout below 30μm
    Working temperature -20℃ ~ 80℃

    * RA19013UU is two sides sealed type.

    More RA cross roller bearing models


    RA19013|RA19013UU crossed roller bearing features:

    1. Integrated inner ring with separable outer ring.

    2. Sustain radial, axial and moment loads at the same time.

    3. High rigidity & running accuracy.

    4. Ultra-thin section, space saving and reduce the overall weight of the device.



    1. Why the preload type(CC0 clearance) RA cross roller bearings are widely selected?

    Because RA19013UU bearing with preload (clearance -0.01~0 mm) can improve bearings rotation accuracy, increase stiffness, improve the bearing’s damping and reduce noise. Check “Prelaod of crossed roller bearings” for more detailed info.


    2. What is the MOQ for this model RA19013UU?
    There is no MOQ for bearing models in stock, and low MOQ for custom design. Please contact us for details.


    3. How to lubricate RA19013UU crossed roller bearings?
    Unless otherwise stated, all BRS made RA thin section cross roller bearings are filled with proper amount of complex lithium grease before delivery. So users can directly put bearings into application after receiving goods. Then after 1~6 months operation, bearings should be added with proper grease through grease holes on the outer ring based on working conditions.

  • RA19013 cross roller bearing installation instructions

    Cautions: For crossed roller bearings with split outer ring, when the rigidity of the mounting parts is not sufficient, stress concentration will occur at the contact area between the rollers and raceways, and the bearing performance will be deteriorated significantly.

    Therefore, it is necessary to carefully examine the rigidity of housing and the strength of fixing bolts when a large moment will be applied.


    1. Before installation, please clean bearing bracket, shaft, or other components, make sure there is no burrs or rough edge.
    2. Fix the inner and outer rings in the axial direction by using fixing plates, etc.
    3. Slightly loosen the fixing bolts of bearings outer ring during mounting.


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