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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SB-2251SG |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
208.30 oz-in
15.00 kg-cm
1.5 N-m
6.0V
208.30 oz-in
15.00 kg-cm
1.5 N-m
4.8V
138.90 oz-in
10.00 kg-cm
1.0 N-m
Below Average
4.8V
138.90 oz-in
10.00 kg-cm
1.0 N-m
Below Average
|
| Speed |
6.0V
0.09 sec/60°
705.9 deg/s
117.6 RPM
4.8V
0.11 sec/60°
571.4 deg/s
95.2 RPM
Above Average
|
| Physical | |
| Weight | 2.40 oz68.0 gAverage |
| Dimensions |
L 1.587 in W 0.795 in H 1.465 in L 40.3 mm W 20.2 mm H 37.2 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Width | 800-2200 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| 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
| Torque | Below Average Stronger than 30% of 1043 Digital Standard servos at 4.8V |
| Speed | Above Average Faster than 73% of 1041 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 37% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.45–4.53 W |
| Power Density | 2.452 W/in³ More power-dense than 51% of 1759 Digital Standard servos |
| Torque Density | 2.0427 oz-in/g Stronger than 23% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 75.16 oz-in/in³ Denser torque than 30% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.14006 (1/sec·g) Faster than 65% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 14.59 Better balanced than 24% of 1031 Digital Standard servos |
| Torque Gain per Volt | 41.64%/V More voltage-responsive (torque) than 98% of 850 Digital Standard servos |
| Speed Gain per Volt | 19.62%/V More voltage-responsive (speed) than 78% of 871 Digital Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 14% of 1539 Digital Standard servos |
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