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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BMS-555MG |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
65.27 oz-in
4.70 kg-cm
0.5 N-m
4.8V
58.33 oz-in
4.20 kg-cm
0.4 N-m
|
| Speed |
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
4.8V
0.15 sec/60°
400.0 deg/s
66.7 RPM
|
| Physical | |
| Weight | 0.69 oz19.5 gAverage |
| Dimensions |
L 1.181 in W 0.394 in H 1.083 in L 30.0 mm W 10.0 mm H 27.5 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Analog |
| Pulse Cycle | 8 ms |
| Neutral Position | 1520 µs |
| Refresh Rate | 125 Hz |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.5–6.5 V |
| Power Source | Ni-MH / Ni-CD |
| Connectivity | |
| Connector | JR (Universal) |
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 | Average Lighter than 63% of 119 Slim servos |
Performance Analysis
| Shaft Power | 0.72–0.93 W |
| Power Density | 1.842 W/in³ More power-dense than 40% of 165 Blue Bird servos |
| Torque Density | 2.9911 oz-in/g |
| Torque-to-Volume Ratio | 115.74 oz-in/in³ |
| Speed-to-Weight | 0.34188 (1/sec·g) |
| Speed-Torque Trade-off | 8.75 |
| Voltage Range Width | 2.0 V Wider voltage range than 34% of 160 Blue Bird servos |
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