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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BLS3848MED |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
666.72 oz-in
48.01 kg-cm
4.7 N-m
7.4V
583.38 oz-in
42.01 kg-cm
4.1 N-m
6.0V
500.04 oz-in
36.01 kg-cm
3.5 N-m
Top 10%
|
| Speed |
8.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
7.4V
0.10 sec/60°
600.0 deg/s
100.0 RPM
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
Average
|
| Physical | |
| Weight | 2.82 oz80.0 gBottom 10% |
| Dimensions |
L 1.57 in W 0.79 in H 1.50 in L 39.9 mm W 20.1 mm H 38.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Angle Sensor | Magnetic Encoder |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Water Rating | Waterproof |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | China |
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 | Top 10% Stronger than 92% of 1043 Digital Standard servos at 6.0V |
| Speed | Average Faster than 53% of 1041 Digital Standard servos at 6.0V |
| Weight | Bottom 10% Lighter than 10% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 7.11–13.70 W |
| Power Density | 7.362 W/in³ More power-dense than 92% of 1759 Digital Standard servos |
| Torque Density | 6.2505 oz-in/g Stronger than 89% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 268.77 oz-in/in³ Denser torque than 92% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09615 (1/sec·g) Faster than 31% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 65.01 Better balanced than 87% of 1031 Digital Standard servos |
| Torque Gain per Volt | 13.89%/V More voltage-responsive (torque) than 38% of 850 Digital Standard servos |
| Speed Gain per Volt | 18.53%/V More voltage-responsive (speed) than 72% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 50% of 1539 Digital Standard servos |
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