Simkawa
FFU Linear Screw Actuator
Compact and precise FFU linear screw actuator ideal for automation systems. Features high positioning accuracy, smooth motion, and long service life.
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FFU Linear Screw Actuator Features
- Compact structure, space saving
The FFU linear screw actuator adopts an integrated design, integrating the slide, screw and guide rail into one, and takes up little space.
- High positioning accuracy
The built-in high-precision ball screw transmission system ensures small repeated positioning error and meets high-precision assembly requirements.
- Smooth movement and low noise
The precision machining and optimized rolling structure make it run smoother and quieter, suitable for noise-sensitive application scenarios.
- High-rigidity guide structure
The built-in double guide rail design improves the rigidity and load-bearing capacity of the slider, and supports horizontal or vertical installation.
simkawa drive system
Factory Processing
Advanced processing technology, meticulous operation of linear screw actuators FFU series, and quality control at every level.
Specifications of FFU Linear Screw Actuator
| Types | Material | Heat treatment | Hardness | |||
| Screw | Nut | Screw | Nut | Screw | Nut | |
| FFU Standard nut type | S55C | SCM415H | High frequency | Carburizing and quenching | 56~62HRC | 58~62HRC |
Standard Configuration
Dust Cover
Dust Ring
Oil Nozzle
Oil Pipe Joint
Axial Clearance Adjustment
Double nut threaded pre-tightening principle
It has compact structure, easy adjustment, reliable operation and wide application, but the preload amount is not easy to control.
Double nut washer preload principle
Simple structure, easy loading and unloading, high rigidity, reliable operation, and the most widely used. However, it is inconvenient to adjust and cannot be pre-tightened at any time.
Single nut pre-tightening method
In order to compensate for the gap in the raceway, the size of the ball is appropriately increased during design to make it contact at four points to generate preload. In order to improve working performance, spacer steel balls can be added between the load-bearing balls.
Single nut pre-tightening principle
In the middle of the nut, the lead is increased by a preload A to achieve the purpose of pretightening.
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