Planetary Roller Screws 行星滾柱螺桿

About Us


Planetary roller screws, also called Satellite roller screws, is our main product.
U-SCREWS, is the leading manufacturer of the world’s most accurate transmission control system, has focused on R&D and manufacture of the key component that provides:

  1. High load capacity: The load capacity is 5 times that of ball screws.
  2. High speed and acceleration: Generally up to 3 times of ball screw.
  3. Long life: Life is 10 times that of the ball screw.
  4. Low noise: Noise is lower than 79db.

The component we named as 「Planetary Roller Screw」. Through our research and development, we are constantly improving on value and innovation for our products.

Other than owning the patent of our product, we also manage production process efficiently, to provide quick delivery and attractive price.
In comparison to users who have to suffer long lead times and much higher cost for their current product.

Our commitment has been helping our customers enhance their production efficiency for product stability and higher value by using Planetary Roller Screw.

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Industries and Applications

Military, Aerospace and Industrial

「Planetary Roller Screw」has been used in wide range for military and national defense industries and aerospace industry.

The industrial application has a good response on punching machines, injection molding machines, etc. It can be driven only by a motor, it takes up little space, and the power loss is only one tenth of the hydraulic system, which is safer and more convenient to operate.


2022.02   New! U-screw Series with 3 times longer useful life than previous series. Used in Metro Transit Switching System. >Contact us for specs<

2020.11    Won the Taiwan Excellence Award 2021

2020.02    got Military industry order

2019.12    signed Mainland China agency agreement

2019.11    Professor Lee visit our company

2018.11    Joined TMTS show

2018.08    Joined Taipei automation show


2022 New Long life series for specific long life requirements

Won the Taiwan Excellence Award 2021

2019 Taipei Automation

2018 TMTS

Planetary roller screw in operation

Our Customers

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