RVI Inverted Roller Screws
An inverted planetary roller screw where the nut rotates and the screw remains fixed — ideal for compact, integrated actuator packages.
Overview
In the RVI inverted configuration the roller nut rotates while the screw shaft is held stationary and translates. This arrangement suits actuators where the motor drives the nut directly, enabling shorter, more compact and highly integrated designs — for example inside electromechanical cylinders.
Features
Compact integration
Rotating-nut design shortens the actuator and simplifies the drive train.
Direct nut drive
The nut can be driven directly by a motor or through a gear/belt stage.
High load in small envelope
Roller-screw load capacity in a package optimised for space.
Clean electromechanical motion
Enables sealed, efficient actuator designs.
Benefits
- Build shorter, lighter electric cylinders and actuators.
- Integrate motor and screw into one compact assembly.
- Achieve high force density where space is constrained.
Applications
- Electromechanical cylinders
- Robotics and exoskeletons
- Aerospace actuation
- Compact automation
Data tables
Representative capability envelope. Every screw is verified against your specific load case before we quote — request full data tables for exact geometry, load ratings and tolerances.
| Parameter | Range |
|---|---|
| Nominal diameter | 10 – 60 mm |
| Lead | 2 – 20 mm |
| Dynamic load | up to 500 kN |
| Configuration | Rotating nut, fixed screw |
| Max speed | to application |
CAD files
2D and 3D CAD models are available for design-in. Visit downloads or request CAD for a specific size.