Products
RA11008
2019-04-10
  • RA11008 cross roller bearing
  • THK RA11008 bearing
  • RA11008 slewing ring bearing structure
  • Part NO.

    Open type:RA11008

  • Dimension

    d:110mm

    D:126mm

    B:8mm

  • Mounting

  • Basic Load Ratings

    Cr:7.45kN

    Cor:15kN

  • Equivalent Model

    CRBS1108

Mass:0.15kg
  • Features
  • Mounting
  • RA11008 cross roller bearing pecifications:

    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 20μm
    Working temperature -20℃ ~ 80℃

    * RA11008UU is two sides sealed type.

    More RA cross roller bearing models

     

    RA11008 cross 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.

    how to select crossed roller bearings

     

    2. How to lubricate RA series crossed roller bearings?
    Unless otherwise stated, all BRS made RA 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.

     

    3. What is the MOQ for this model RA11008?
    There is no MOQ for bearing models in stock, and low MOQ for custom design. Please contact us for details.

     

  • RA11008UU 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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