Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | REEFS171 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
55.00 oz-in
3.96 kg-cm
0.4 N-m
7.4V
48.00 oz-in
3.46 kg-cm
0.3 N-m
6.0V
41.00 oz-in
2.95 kg-cm
0.3 N-m
|
| Speed |
8.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
|
| Running Current |
8.4V
0.280 A
280 mA
7.4V
0.240 A
240 mA
6.0V
0.200 A
200 mA
4.8V
0.180 A
180 mA
Average
|
| Physical | |
| Weight | 0.67 oz19.0 gBelow Average |
| Dimensions |
L 0.90 in W 0.50 in H 0.86 in L 22.9 mm W 12.7 mm H 21.8 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Dead Band | 3 µs |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Temperature | -15–70 °C5–158 °F |
| Water Rating | Waterproof |
| Connectivity | |
| Connector | JR (Universal) estimate |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Weight | Below Average Lighter than 17% of 620 Digital Micro servos |
| Running Current | Average Lower draw than 37% of 53 Digital Micro servos at 4.8V |
Performance Analysis
| Shaft Power | 0.69–1.27 W |
| Power Density | 3.285 W/in³ More power-dense than 64% of 590 Digital Micro servos |
| Torque Density | 2.1579 oz-in/g |
| Torque-to-Volume Ratio | 105.94 oz-in/in³ |
| Speed-to-Weight | 0.47847 (1/sec·g) |
| Speed-Torque Trade-off | 4.51 |
| Voltage Range Width | 3.6 V Wider voltage range than 82% of 511 Digital Micro servos |
Similar Active Servos
Reviews of Reefs RC 55
Be the first to review!