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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | RO100 KV55 |
| Category | Robotics |
| Performance | |
| Torque |
48.0V
566.40 oz-in
40.79 kg-cm
4.0 N-m
Average
48.0V
1,699.20 oz-in
122.36 kg-cm
12.0 N-m
Average
|
| Speed |
48.0V0.00 sec/60°15,000.0 deg/s2,500.0 RPMAbove Average |
| Running Current |
48.0V20.000 A20,000 mABottom 10% |
| Stall Current | ≤108.3 A≤108300 mABelow Average |
| Rated Output Power | 838.0 W |
| Physical | |
| Weight | 25.04 oz710.0 gBelow Average |
| Shape | Cylindrical |
| Dimensions |
L 1.10 in W — H — L 27.9 mm W — H — ∅ 4.47 in113.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | FET |
| Gear Ratio | 1:1 |
| Rotation Mode | Multi-turn |
| Control & Signal | |
| Angle Sensor | Hall Effect |
| Control System | FOC |
| Electrical & Environment | |
| Operating Voltage | 48–48 V |
| Temperature | -20–50 °C-4–122 °F |
| Connectivity | |
| Wire Length | 100 mm3.94 in |
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
| Torque | Average Stronger than 42% of 54 Custom servos at 48.0V |
| Speed | Above Average Faster than 86% of 64 Custom servos at 48.0V |
| Weight | Below Average Lighter than 28% of 79 Custom servos |
| Running Current | Bottom 10% Lower draw than 4% of 50 Custom servos at 48.0V |
| Stall Current | Below Average Lower draw than 23% of 66 Custom servos |
Performance Analysis
| Shaft Power | 261.82–785.46 W |
| Power Density | 35.737 W/in³ 1st-highest power density of 206 Robotics servos |
| Torque Density | 0.7977 oz-in/g Stronger than 13% of 39 CubeMars servos |
| Torque-to-Volume Ratio | 25.77 oz-in/in³ Denser torque than 12% of 27 CubeMars servos |
| Speed-to-Weight | 0.35211 (1/sec·g) Faster than 65% of 50 CubeMars servos |
| Speed-Torque Trade-off | 2.27 Better balanced than 29% of 39 CubeMars servos |
| Current-per-Torque Ratio | 0.1912 A/oz-in More efficient than 3% of 33 CubeMars servos |
| No-Load vs Stall Current Spread | 5.42 Narrower current spread than 8% of 37 CubeMars servos |
| Voltage Range Width | 0.0 V Wider voltage range than 4% of 50 CubeMars servos |
Notes
Frameless outrunner motor. Rated Torque 4Nm (566.448 oz-in). Rated current 20A. Rated speed 2000 RPM.
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