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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BLS2940MED |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
555.00 oz-in
39.96 kg-cm
3.9 N-m
7.4V
513.00 oz-in
36.94 kg-cm
3.6 N-m
6.0V
444.00 oz-in
31.97 kg-cm
3.1 N-m
Above Average
|
| Speed |
8.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
7.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
|
| Physical | |
| Weight | 2.50 oz71.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.16 in L 39.9 mm W 20.1 mm H 29.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Angle Sensor | Magnetic Encoder |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Water Rating | IP67 |
| 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 | Above Average Stronger than 88% of 1043 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 87% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 30% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 10.26–17.10 W |
| Power Density | 11.888 W/in³ More power-dense than 99% of 1759 Digital Standard servos |
| Torque Density | 6.2535 oz-in/g Stronger than 89% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 308.60 oz-in/in³ Denser torque than 95% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.17606 (1/sec·g) Faster than 81% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 35.52 Better balanced than 58% of 1031 Digital Standard servos |
| Torque Gain per Volt | 10.42%/V More voltage-responsive (torque) than 20% of 850 Digital Standard servos |
| Speed Gain per Volt | 13.89%/V More voltage-responsive (speed) than 39% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 49% of 1539 Digital Standard servos |
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