CSG-2UK Series / Unit / High Torque & Sealed Full Unit Type


It maintains the same flat structure, but the sealed structure
offers simple design and a product that is easy to handle.
The CSG series unit type HarmonicDrive® for high load capacity is outfitted with high stiffness bearings (cross roller bearings).

- High torque
- Long service life (better rated life)

*Product images are for reference purposes.


  1. Model: CSG series
  2. Model Nos: 25, 32, 40, 45, 58, 65
  3. Reduction ratio: 50, 80, 100, 120, 160
  4. Model: 2UK = Sealed type
  5. Spline outside diameter:
    • A = Approx. 29mm
    • B = Approx. 44mm
    • C = Approx. 54mm
  6. Form symbol (design order serial number): 01 to 05
  7. Special specification:
    • No description = Standard product
    • SP = Special specification


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Catalog Series Catalog name PDF
HarmonicDrive® Reducer for precision control General catalog of HarmonicDriveR

Manual / Software

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Manual/Software Type/Series Material name/software name Detailed information English
Manual HarmonicDrive® Speed Reducer HarmonicDrive® Engineering Data

Related products

The highest-spec model with a 30% higher torque capacity and 43% longer speed reducer life than the CSF Series of standard models.
Achieves a 30% lighter design than the previous CSG unit series. Contributes to lighter and faster equipment and robots with greater load capacity.


If you have any comments about this product, please contact us using the inquiry form or the nearest sales office.

The academic and general name of "Harmonic Drive®" is "Strain Wave Gearing", and the name "Harmonic Drive®" is a registered trademark that can only be used for products manufactured and sold by the Company.

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