Products
RA20013
2019-04-12
  • RA20013 cross roller bearing
  • THK RA20013 bearing
  • RA20013 slewing ring bearing structure
  • Part NO.

    Open type:RA20013

  • Dimension

    d:200mm

    D:226mm

    B:13mm

  • Mounting

  • Basic Load Ratings

    Cr:25.8kN

    Cor:54.7kN

  • Equivalent Model

    CRBS20013

Mass:0.71kg
  • Features
  • Mounting
  • RA20013 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℃

    * RA20013UU is two sides sealed type.

    More RA cross roller bearing models

     

    RA20013|RA20013UU 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.

     

    FAQ

    1. How to select crossed roller bearings?
    Crossed roller bearings performance has an irreplaceable role in mechanical equipment, so selecting bearings require careful consideration. BRS suggest users choose cross roller ring following the procedures shown below. If the mounting space is very limited, and user has high requirements on the rotation accuracy of inner ring, then RA crossed roller bearing should be selected.

    how to select crossed roller bearings

     

    2. I’m designing a prototype, can you produce according to my design?
    Yes, BRS can produce custom design based on users requirements, but there will be a MOQ.

     

  • RA20013 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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