Not every linear drive is suitable for every application - which is why a direct comparison is worthwhile. Our Uhing systems such as the Rolling Ring Drive and the Linear Drive Nut offer decisive advantages in many areas compared to classic solutions such as ball screw drives, timing belt drives or threaded spindles. Whether compact installation, backlash-free running, low idling torque or integrated overload protection: here you can see at a glance which system offers the most potential for your challenge.
Which linear actuator is the right one? We show you the differences.
Direct comparison of technical features
| Uhing makes the difference | Rolling Ring Drive | Linear Drive Nut | Description |
|---|---|---|---|
| Automatic back and forth movement with constant direction of shaft rotation | ✓ |
| The Rolling Ring Drive enables automatic reversal of the direction of linear movement while the direction of rotation of the shaft remains constant - a significant advantage over timing belt drives and threaded spindles. |
| Variably adjustable traverse speeds | ✓ |
| The traverse speed of the Rolling Ring Drive can be adjusted mechanically and flexibly - in contrast to ball screw drives, spindle nuts or cross-threaded spindles, where this is usually possible by motor. |
| Mechanically adjustable travel | ✓ |
| The stroke can be adjusted mechanically - without a motor, control unit or software. This clearly sets the Rolling Ring Drive apart from solutions with a spindle drive, ball screw or timing belt drive. |
| Quick change of direction at the reversal points | ✓ |
| The automatic reversal of direction in the Rolling Ring Drive takes place directly at the mechanically adjustable reversal point - significantly faster than with a spindle nut or ball screw with electronic reversal. |
| Can be disengaged from the shaft | ✓ | ✓ | Both the Rolling Ring Drive and the Linear Drive Nut can be separated from the shaft without tools and moved freely by hand - ideal for short set-up times, retooling or cleaning processes. This is not easily possible with a classic ball screw. |
| Low operating costs/low maintenance | ✓ | ✓ | Both systems are designed to be robust and low-wear. Especially in comparison to open ball screws or screw drives with a high friction coefficient, they require less maintenance - which reduces operating costs. |
| Vibration-resistant | ✓ | ✓ | Rolling Ring Drives and Linear Drive Nuts work reliably even when exposed to vibrations - an advantage over sensitive drive solutions such as cross-threaded spindles. |
| Low noise |
| ✓ | In contrast to a timing belt drive or a threaded spindle, the Linear Drive Nut generates only minimal noise. Ideal for applications with high noise requirements, e.g. in medical technology. |
| Space-saving installation |
| ✓ | Thanks to its compact design, the Linear Drive Nut is ideal for confined installation spaces - this is an advantage over timing belt drives or spindle drives, which usually require more installation space. |
| Delay-free overload protection and variable thrust forces | ✓ | ✓ | The Rolling Ring Drive and the Linear Drive Nut provide mechanical protection in the event of overload thanks to the Rolling Ring principle - without sensors or controls. Ideal for variable thrust requirements. |
| Good sealing capability and corrosion protection | ✓ | ✓ | The smooth shaft and compact design of both systems enable simple but good sealing thanks to optional wipers - significantly better than with ball screws or screw nuts with an open thread. |
| Smooth running | ✓ | ✓ | Both Rolling Ring Drives and the Linear Drive Nuts offer smooth, quiet running - an advantage over spindle drives or timing belt solutions with gear backlash. |
| Backlash-free | ✓ | ✓ | The backlash-free power transmission ensures maximum positioning accuracy with both systems - a decisive advantage over ball screws, threaded spindles or cross-threaded spindles. |
| Low drive torque | ✓ | ✓ | Due to the Rolling Ring principle, a particularly low drive torque is required for Rolling Ring Drives and the Linear Drive Nuts - in contrast to timing belt drives, spindle drives or ball screw drives, which require higher torques. |
Why our systems are particularly impressive
Rolling Ring Drive
The Rolling Ring Drive can not only be used in winding or laying technology, but is also a convincing alternative to threaded spindles, ball screw drives or timing belt drives in numerous other linear motion applications. A typical example: the movement of a coating nozzle above a product web. Here, the Rolling Ring Drive enables a smooth back and forth movement with automatic change of direction - without changing the direction or speed of rotation of the shaft. The speed can be adjusted directly on the drive without the need for tools.
Linear Drive Nut
The Linear Drive Nut demonstrates its advantages particularly where precision, smooth running and compact design are required - for example in measuring machines. Thanks to its backlash-free movement and smooth running properties, it is ideal for sensitive processes. At the same time, it has an adjustable side thrust that enables integrated mechanical overload protection. This can make additional protective measures superfluous in safety-relevant applications - e.g. in the event of personnel intervention.
