• CSF-20 harmonic reducer bearing
  • CSF20 gear units crossed roller bearing
  • CSF20 CSG20 output bearing
  • CSF-20 harmonic reducer gearbox bearing structure
  • Part NO.

    Open type:CSF20-XRB

  • Dimension




  • Mounting




  • Basic Load Ratings

  • Equivalent Model

  • Features
  • Mounting
  • CSF-20 harmonic reducer bearing specifications:

    Type of guide Roller
    Space retainer Yes
    Material GCr15
    Standard lubrication method Grease lubrication
    Oil hole No
    Sealing  Framework oil seal on one side
    Radial clearance -0.01 ~ 0
    Rotation accuracy P5
    Working temperature -20℃ ~ 80℃

    Other CSF|CSG harmonic reducer bearing models.


    CSF20-XRB harmonic reducer output bearing features:

    1. Designed for CSF-20 and CSG-20 harmonic reducer gearbox, customized size and structure also available.

    2. Integrated inner ring with split outer ring.

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

    4. High stiffness, high rotation accuracy and high loading capacity.

    5. Compact structure with mounting holes on inner and outer ring, easy to install and save space.

    6. Specially designed framework oil seals, provide good sealing effect.

    7. Full complement CSF20 crossed roller bearing type available.



    1. What is the MOQ for this model CSF20-XRB?
    There is no MOQ for bearing models in stock, and low MOQ for custom design. Please contact us for details.


    2. How to lubricate crossed roller bearings?
    Unless otherwise stated, all BRS made crossed 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 based on working conditions.


    3. Do you offer the whole harmonic gear system?
    No, BRS only produce the crossed roller bearings for harmonic drive units.

  • CSF-20 strain drive untis bearing instructions:


    CSF-CSG-20 output bearing installation


    1. Before installation, please clean bearing bracket, shaft, or other components,

    make sure there is no burrs or rough edge.


    2. Install the locating pin to output bearing.


    3. Install the Screw 1, then install the Screw 2.


    4. Install the wave generator and related components.


We will reply to your message within 24 hours