RKF Actuator
Harmonic Drive
The RKF series is a compact servo actuator combining a zero backlash Harmonic Drive® gear and an AC servo motor, designed for operation with a wide range of third-party drives.
Key figurescomparable across the catalogue
- Mass
- 2.9 kg
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Mass (RKF-20A)
- 2.9 kg
- Mass (RKF-25A)
- 5.0 kg
- Mass (RKF-32A)
- 9.5 kg
- One-way Positioning accuracy
- 90 arc.sec
- Encoder type
- Incremental encoder
- Encoder resolution
- 200 - 2000p/rev
- Time rating
- Continuous
- Excitation method
- Permanent magnet
- Insulation class
- Class B
- Dielectric strength
- AC1000 V/min
- Insulation resistance
- DC500 V 100M ohm or higher
- Structure
- Totally enclosed, self-cooled
- Lubricant
- Grease (Harmonic Grease®)
- Ambient temperature
- 0 to 40°C
- Ambient humidity
- 20 to 80% (no condensation)
- Storage temperature
- -20°C to +60°C
- Repeatability (RKF-20A)
- ±30 arc sec
- Repeatability (RKF-25A)
- ±25 arc sec
- Repeatability (RKF-32A)
- ±20 arc sec
- Output shaft surface runout
- 0.04 mm
- Output shaft end runout
- 0.04 mm
- Eccentricity of flange fitting outside diameter
- 0.06 mm
- Perpendicularity between surface of mounting flange and outp
- 0.06 mm
About
The RKF series from Harmonic Drive is a compact servo actuator that integrates a zero backlash Harmonic Drive® gear with an AC servo motor. This series is engineered for versatility, allowing it to operate seamlessly with various third-party drives, as well as Harmonic Drive LLC’s own REL Series and RTL Series. Key features of the RKF Actuator include zero backlash for precise motion control, a compact and lightweight design for space-constrained applications, and high power output. It incorporates an incremental encoder for feedback and delivers high positioning and rotational accuracy, making it suitable for demanding applications requiring precise and reliable motion.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.