The original - for over 80 years, Uhing has been setting standards in linear technology with the Rolling Ring Drive.
Rolling Ring Drives are friction drives that convert the constant rotary motion of a smooth shaft into a reciprocating linear motion. They act practically like nuts on screw spindles.
The main product features of the Uhing Rolling Ring Drive:
- maximum efficiency due to complete rolling bearing support of gearbox and payload
- automatic back and forth movement
- variably adjustable speed of travel from 0 to max. 4.2 m/s
- variably adjustable stroke length and stroke position
- high dynamics at the reversal point
- can be disengaged from the shaft
- low operating costs
- low maintenance requirements
- Alternative to ball screw, timed belt drive, etc.
On request, Uhing also offers the Rolling Ring Drive as a complete assembly.
The Rolling Ring principle
Uhing Rolling Ring Drives are non-positive drives that convert the rotation of a smooth, non-threaded round 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 pitch can be finely adjusted, right up to standstill.
Reversal is mechanical or pneumatic, abrupt or delayed - depending on the equipment. The robust design, the low-maintenance mechanics and the large number of variants make the RG the original for dynamic and reliable movements.
Product advantages: The Uhing difference
Durable
The Rolling Ring Drive is designed for continuous use - thanks to solid materials, precise bearings and low-wear operation. Even with high thrust forces (up to 3600 N) and speed of travel (up to 4.2 m/s), it remains reliably synchronised.
Versatile
When it comes to optimising mechanical processes - even under the most demanding conditions - low-maintenance Uhing products deliver precision and maximum process reliability. High loads, extreme temperatures and continuous operation are reliably mastered.
Simple
Mechanical control with a clear principle. No complex engineering. Quick integration into existing systems - CAD data, accessories and technical support included.
Safe
The backlash-free, contactless guide protects both the material and the machine. Reversal mechanisms, free movement lever, roller guides and overload-resistant assemblies ensure maximum process reliability.
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]
|
![max. speed v [m/s]](/_assets/3cdf1a01bd93189764ad406844aec656/Icons/Variants/icon_max_speed_with_standard_momentum_switch.svg){kind=icon}
max. speed v [m/s]
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![Pitch/rev. [mm]](/_assets/3cdf1a01bd93189764ad406844aec656/Icons/Variants/icon_max_pitch_per_revolution.svg){kind=icon}
Pitch/rev. [mm]
|
|---|---|---|---|---|
|
KI3L-15-6MCR KI3R-15-6MCR |
15 | 30 | 0.3 | 6 |
|
RGK3-15-0MCRF |
15 | 90 | 0.3 | 8 |
|
RG3L-15-2MCRF RG3R-15-2MCRF |
15 | 110 | 0.3 | 11.1 |
|
RG4L-15-2MCRF RG4R-15-2MCRF |
15 | 220 | 0.3 | 11.1 |
|
RGK3-20-1MCRF |
20 | 130 | 0.3 | 12 |
|
RG3L-20-2MCRF RG3R-20-2MCRF |
20 | 160 | 0.3 | 15.5 |
|
RG4L-20-2MCRF RG4R-20-2MCRF |
20 | 320 | 0.3 | 15.5 |
|
RGK3-22-1MCRF |
22 | 130 | 0.3 | 13 |
|
RG3L-22-2MCRF RG3R-22-2MCRF |
22 | 160 | 0.3 | 16.5 |
|
RG4L-22-2MCRF RG4R-22-2MCRF |
22 | 320 | 0.3 | 16.5 |
|
RG3L-30-2MCRF RG3R-30-2MCRF |
30 | 260 | 0.4 | 24 |
|
RG4L-30-2MCRF RG4R-30-2MCRF |
30 | 520 | 0.4 | 24 |
|
RG3L-40-2MCRF RG3R-40-2MCRF |
40 | 420 | 0.4 | 32 |
|
RG4L-40-2MCRF RG4R-40-2MCRF |
40 | 840 | 0.4 | 32 |
|
RG3L-50-0MCR RG3R-50-0MCR |
50 | 700 | 0.25 | 40 |
|
RG4L-50-0MCR RG4R-50-0MCR |
50 | 1400 | 0.25 | 40 |
|
RG3L-60-0MCR RG3R-60-0MCR |
60 | 1000 | 0.25 | 48 |
|
RG4L-60-0MCR RG4R-60-0MCR |
60 | 2000 | 0.25 | 48 |
|
RG3L-80-0MCR RG3R-80-0MCR |
80 | 1800 | 0.25 | 70 |
|
RG4L-80-0MCR RG4R-80-0MCR |
80 | 3600 | 0.25 | 70 |
Application Examples
Accessories
-
Guide rollers
moreHigh-quality, durable rollers for precise guidance of wires, fibres and other winding materials.
-
GS guide system
moreThe modular system for linear guidance of various materials - compact, corrosion-protected and customisable.
-
HGS guide system
moreThe reinforced guide solution for applications with high tensile forces.
-
Thrust measuring device
moreFor precise adjustment and control of the side thrust of Rolling Ring Drives or Linear Drive Nuts.
-
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.
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Tension control
moreThe perfect addition for constant tensile force during material processing - for consistent processes and maximum process reliability.
