FBS-2UH Series / Unit / Large Hollow Speed Reducer Unit



This HarmonicDrive® features large hollow shaft and smaller outer diameter as a new design.
Fully seeking the hollow shaft, one of the HarmonicDrive® features, we’ve developed the new-design unit with the fully-reduced outer diameter.

*Product images are for reference purposes.


  1. Model: FBS Series
  2. Model Nos: 25,32
  3. Reduction ratio: 30,50,100
  4. Model: 2UH = Unit Type
  5. Special specification:
    • No description = Standard product
    • SP = Special specification


Membership registration is required to print or download catalog data.

Click here for Membership registration

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

Membership registration is required to print and download technical data.

Click here for Membership registration

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

Related products

This type pushes the flat thin type to its limits.


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.

back to the list

This website uses cookies to improve convenience for users, to statistically understand how the site is used, and for other purposes. Please read the About cookies and, if you consent to the use of cookies, click the "Agree" button.