Uhing®-Linear drive nut (linear actuator)


Uhing®-linear drive nuts (linear actuators) are non-positive drives which convert the rotation of a plain round shaft into a traversing movement.

This effect is achieved by using rolling rings that are mounted on roller bearings and have a specially shaped running surface. These rings are pressed against the shaft so that they roll on the surface of the shaft at a specific angle.


  • Backlash-free,
  • low noise emission,
  • high efficiency due to rolling on the shaft,
  • travel and guide units,
  • can be freely moved on the shaft by using a release lever,
  • compact design,
  • installation does not require much space,
  • overload protection by slipping, side thrust can be multiplied by coupling several linear drive nuts,
  • different pitch settings available,
  • pitch can be set for either direction on the shaft,
  • good sealing properties against dust, dirt, humidity, etc.

Wherever linear movements are required, the Uhing® linear drive nuts are a state-of-the-art alternative to hydraulic and pneumatic actuators, chain feeding systems and lead screws.

Uhing linear drive RS product video

Stuck in legacy technology? Discover new possibilities

Uhing® Press releases:

The Uhing linear drive nut RS meets the highest demands on hygiene

Industrial production involves contamination next to always. This fact is a great challenge for the food industries. On one hand, lubricating greases could reach the goods to produce. On the other hand, there is a risk of processed material particles remaining and decomposing inside the machine. The non-positive linear drive nut RS offered by Joachim Uhing GmbH & Co. KG is a solution virtually predestined for this sector....[read more]

Uhing presents the first mechatronics study ever: linear drive nut RS with electronic drive under water.

For the first time ever, Joachim Uhing GmbH & Co. KG has implemented a combination of classical drive and electronic controller in single a project. The internationally renowned specialist for mechanical linear drives will showcase the study on the Motek at Stuttgart in October 2013....[read more]

Uhing Combines Rolling Ring technology with controller

On the Intec in Leipzig and on the Hannover Fair, Uhing showcases product studies on the innovations for the RG Rolling Ring Drive and the RS Linear Drive Nut....[read more] 

The New Member of the Uhing Product Range to Reckon With: Linear Drive Nut RS8

For more than 60 years, Joachim Uhing KG has been successful with linear drive technology, above all with the rolling ring drive invented by the company founder. In 1983, the RS linear drive nut was added to the product range, until now for shaft diameters from 10 to 60 millimetres. Due to frequent requests for smaller diameters, Uhing now launches the RS8 for a diameter of eight millimetres....[read more]

One hundred thousandth Uhing drive nut leaves the factory

In late February 2012, the one hundred thousandth drive nut produced was shipped to Singapore. There, the RS10 type item for 10 millimetre shafts will be employed by a measuring machine manufacturer. Such a high number of units manufactured suggests tried and tested technology and specific know-how for the applications the product is implemented in. A review of the product history and a forecast on future trends confirm this impression....[read more]

The Secret of Uhing RS Linear Drive Nut (linear actuator)

The numerous useful inventions for drive technology Joachim Uhing KG presented in its history caused surprise and bewilderment among mechanical engineering experts again and again. Observers are often puzzled by the underlying mechanism of our products and ask themselves: How does this work?....[read more]


Joachim Uhing GmbH & Co. KG
Konrad-Zuse-Ring 20
24220 Flintbek, Germany

Tel. / Phone +49 (0) 4347 906-0
Fax Vertrieb +49 (0) 4347 906-40
Fax Einkauf +49 (0) 4347 906-31

E-mail: sales(at)uhing.com
Internet: www.uhing.com