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)
- Backlash-free

Compared to CSF Series:
    Torque capacity increased by 30%
    Service life improved by 43% (10,000 hours)

Click here for the lightweight type CSG-2UH-LW Series

*Product images and CAD images are for reference purposes.
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  1. Model: CSG series
  2. Model Nos: 14, 17, 20, 25, 32, 40, 45, 50, 58, 65
  3. Reduction ratio: 50, 80, 100, 120, 160
  4. Model:
  5. Special specification:
    • No description = Standard product
    • SP = Special specification


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Catalog Series Catalog name Japanese English Traditional Chinese
HarmonicDrive® Reducer for precision control General catalog of HarmonicDrive® 2404-27R 2404-27R 2404-27R

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

Achieves a 30% lighter design than the previous CSG unit series. Contributes to lighter and faster equipment and robots with greater load capacity.
A sealed full unit type that integrates everything up to the input side seal. This easy-to-handle product requires no seal design.


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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