Linear. Smooth. Durable. The alternative to threaded spindles.
Uhing Linear Drive Nuts are non-positive drives that convert the rotary motion of a smooth shaft into a linear motion.
The main product features of the Uhing Linear Drive Nut:
- backlash-free
- very smooth running
- low noise
- high efficiency
- can be disengaged on the shaft
- compact design
- low installation space requirement
- safety due to slip in case of overload
- side thrust forces adjustable at the factory
- available with different pitch
- left and right pitch possible on one shaft
- good sealing possibilities against dust, dirt, moisture, etc
On request, Uhing can also supply the Linear Drive Nut as a complete assembly and in housing designs with special coatings or made of stainless steel.
The functional principle of the Linear Drive Nut
Uhing Linear Drive Nuts are friction drives that convert the rotation of a smooth shaft into a linear movement. Rolling ring bearings are arranged at an angle to the shaft and press against the rotating shaft with their specially shaped running surfaces. Depending on the swivel angle, they generate a left- or right-handed movement. The stroke direction is reversed by changing the direction of rotation of the shaft.
The system is backlash-free, compact and easy to seal, making it suitable for dirty environments. It is vibration-resistant and features overload protection through functional slippage. As an option, the Linear Drive Nut can be equipped with mechanical or pneumatic free movement levers, wipers, roller guides or coupled Linear Drive Nuts to increase the thrust force.
Product advantages: The Uhing difference
Durable
The Linear Drive Nut is designed for years of use. It does not require a gear rack, threaded spindle or complex mechanics - with low wear, guaranteed consistent performance and minimal maintenance.
Versatile
Whether in medical technology, plant engineering or precision mechanical positioning applications - the Linear Drive Nut offers solutions for a wide range of industries. Special pitches, customer-specific adaptations such as side thrusts, connection options and seals can also be realised.
Simple
With low control effort and a clear principle. No complex engineering. Quick integration into existing systems - CAD data, accessories and technical support included.
Safe
Mechanical overload protection thanks to controlled slippage in the event of excessive thrust, robust aluminium housing, precision-manufactured components - the result is maximum operational reliability under a wide range of conditions.
Technical Data
Interested in our CAD model files?
Request CAD download| Type designation |
![Shaft Ø [mm]](/_assets/3cdf1a01bd93189764ad406844aec656/Icons/Variants/icon_shaft_diameter.svg){kind=icon}
Shaft Ø [mm]
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![Side thrust FRS [N]](/_assets/3cdf1a01bd93189764ad406844aec656/Icons/Variants/icon_max_thrust_force_frs.svg){kind=icon}
Side thrust FRS [N]
|
![Pitch/rev. [mm]](/_assets/3cdf1a01bd93189764ad406844aec656/Icons/Variants/icon_max_pitch_per_revolution.svg){kind=icon}
Pitch/rev. [mm]
|
|---|---|---|---|
|
RS3-08-4 |
8 | 50 | 4 |
|
RS4-08-4 |
8 | 100 | 4 |
|
RS3-10-4 |
10 | 100 | 5 |
|
RS4-10-4 |
10 | 200 | 5 |
|
RS4-15-4 |
15 | 260 | 7.5 |
|
RS4-20-4 |
20 | 420 | 10 |
|
RS4-25-4 |
25 | 600 | 12.5 |
|
RS4-35-4 |
35 | 900 | 17.5 |
|
RS4-50-3 |
50 | 1300 | 25 |
|
RS4-60-3 |
60 | 2000 | 30 |
Application Examples
Accessories
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Thrust measuring device
moreFor precise adjustment and control of the side thrust of Rolling Ring Drives or Linear Drive Nuts.
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Face pin wrench
moreThe right tool for the safe installation and adjustment of Uhing components with a face hole.
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Shaft
moreHardened, all ground, superfinished and made to measure - the perfect basis for all Uhing linear actuators and many other applications.
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Shaft grease
moreSpecial grease for optimum running properties and longer service life of Uhing products.
