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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BBR-BMS-380MAX |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
65.28 oz-in
4.70 kg-cm
0.5 N-m
4.8V
58.34 oz-in
4.20 kg-cm
0.4 N-m
|
| Speed |
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
4.8V
0.16 sec/60°
375.0 deg/s
62.5 RPM
|
| Stall Current | ≤0.65 A≤650 mAAverage |
| Physical | |
| Weight | 0.57 oz16.3 gBottom 10% |
| Dimensions |
L 1.04 in W 0.50 in H 1.22 in L 26.4 mm W 12.7 mm H 31.0 mm |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Metal |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Pulse Width | 1300-1700 µs |
| Neutral Position | 1520 µs |
| Dead Band | 8 µs |
| Refresh Rate | 125 Hz |
| Electrical & Environment | |
| Operating Voltage | 3.6–6 V |
| Power Source | Ni-MH / Ni-CD |
| Temperature | -20–60 °C-4–140 °F |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 160 mm6.3 in |
| Origin | |
| Country of Origin | Taiwan |
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 | Bottom 10% Lighter than 7% of 334 Analog Micro servos |
| Stall Current | Average Lower draw than 62% of 48 Analog Micro servos |
Performance Analysis
| Shaft Power | 0.67–0.86 W |
| Power Density | 1.359 W/in³ More power-dense than 87% of 320 Analog Micro servos |
| Torque Density | 3.5791 oz-in/g |
| Torque-to-Volume Ratio | 91.96 oz-in/in³ |
| Speed-to-Weight | 0.38344 (1/sec·g) |
| Speed-Torque Trade-off | 9.33 |
| Current-per-Torque Ratio | 0.0111 A/oz-in |
| Voltage Range Width | 2.4 V Wider voltage range than 97% of 172 Analog Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0200 Finer dead band than 2% of 42 Analog Micro servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are very few reviews for this servo on the web. One German modeler found it too weak for operating hydraulic valves at higher pressure and noted it got warm quickly under load.
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