RSF-Supermini
These extremely small servo actuators utilize zero backlash Harmonic Drive® precision gears, a brushless servo motor and an incremental encoder to deliver precision motion control. The RSF Supermini actuator series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s DCJ Series, DDP Series, and HA680 drives. The RSF actuator units are small enough to fit inside the finger of a robotic hand. Click here to see more mini products from Harmonic Drive.
Key Features:
- Compact, lightweight
- High output torque
- High positional accuracy
- RSF-5B is available with an optional brake
- Connects directly with Mitsubishi MELSERVO-J4 (SSCNET III/H)
- Safety Standard: EN60034-1:2010, EN60034-5
DXF CAD Files
3D CAD Files
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Ordering Code
| RSF | - | 5B | - | 50 | - | US | 050 | - | C | - | SP |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 1. | Model |
RSF-Supermini Series
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| 2. | Size / Version |
3C, 5B
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| 3. | Gear Ratio |
30, 50, 100
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| 4. | Encoder Type |
US - Incremental encoder
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| 5. | Encoder Resolution |
020 - 200 line (size 3C)
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| 6. | Options |
C - Standard - with connectors BC - With Brake and connectors (available for 5B only) J - Mitsubishi Compatible |
| 7. | Special specification |
Blank - Standard product |
Extension cables are required for connection between the actuator & the drive. |
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Specifications
| Item / Model | RSF-3C | RSF-5B | |||||
| Gear Ratio | 30 | 50 | 100 | 30 | 50 | 100 | |
| Rated Torque | Nm | 0.03 | 0.07 | 0.11 | 0.18 | 0.29 | 0.44 |
| lb-in | 0.27 | 0.62 | 0.97 | 1.6 | 2.6 | 3.9 | |
| Rated Speed | rpm | 150 | 90 | 45 | 150 | 90 | 45 |
| Stall Torque | Nm | 0.04 | 0.08 | 0.12 | 0.28 | 0.44 | 0.65 |
| lb-in | 0.35 | 0.71 | 1.06 | 2.5 | 3.9 | 5.8 | |
| Maximum Torque | Nm | 0.13 | 0.21 | 0.3 | 0.5 | 0.9 | 1.4 |
| lb-in | 1.15 | 1.86 | 2.66 | 4.4 | 8 | 12.4 | |
| Moment of Inertia (GD2/4) *1 | Standard (kgm2) | 0.11x10-4 | 0.29x10-4 | 1.17x10-4 | 0.66x10-4 | 1.83x10-4 | 7.31x10-4 |
| With Brake (kgm2) | None | None | None | 0.11x10-3 | 0.31x10-3 | 1.23x10-3 | |
| Encoder Resolution *2 | counts/rev | 24,000 | 40,000 | 80,000 | 60,000 | 100,000 | 200,000 |
| One-way Positioning accuracy | arc/sec | 600 | 600 | 600 | 240 | 180 | 180 |
| Number of Poles | 8 | 8 | |||||
| Mass (g) | Without Brake(g) | 31.0 (except clamp filter) | 66.0 (except clamp filter) | ||||
| With Brake(g) | - | 86.0 (except clamp filter) | |||||
| Recommended Drives | 24V DC | DCJ-055-09, DDP-090-09 | |||||
| 24V DC | HA-680-4B-24 | HA-680-4B-24 | |||||
*1 – Values represent the inertia at the output shaft of the actuator
*2 – Resolution = (encoder resolution) x 4 x (gear reduction ratio)
Extension Cables [Required for use with DCJ or DDP]
(XX indicates the cable length 3m, 5m, or 10m)
For Encoder: EWA-E××-JST09-SP
For Motor: EWA-M××-JST04-SP
For Brake (RSF 5 only): EWA-B××-JST03-SP
