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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 87-SV1257MG |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
55.50 oz-in
4.00 kg-cm
0.4 N-m
6.0V
34.70 oz-in
2.50 kg-cm
0.2 N-m
Below Average
|
| Speed |
7.4V
0.06 sec/60°
1,090.9 deg/s
181.8 RPM
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
Top 10%
|
| Physical | |
| Weight | 1.04 oz29.5 gBelow Average |
| Dimensions |
L 1.378 in W 0.591 in H 1.15 in L 35.0 mm W 15.0 mm H 29.2 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 110° |
| Pulse Width | 800-2200 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 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 15% of 262 Digital Mini servos at 6.0V |
| Speed | Top 10% Faster than 90% of 263 Digital Mini servos at 6.0V |
| Weight | Below Average Lighter than 29% of 466 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.92–1.87 W |
| Power Density | 1.994 W/in³ More power-dense than 61% of 440 Digital Mini servos |
| Torque Density | 1.1763 oz-in/g Stronger than 8% of 258 Digital Mini servos |
| Torque-to-Volume Ratio | 37.09 oz-in/in³ Denser torque than 10% of 262 Digital Mini servos |
| Speed-to-Weight | 0.48426 (1/sec·g) Faster than 80% of 259 Digital Mini servos |
| Speed-Torque Trade-off | 2.43 Better balanced than 9% of 261 Digital Mini servos |
| Torque Gain per Volt | 42.82%/V 2nd-highest torque gain per volt of 232 Digital Mini servos |
| Speed Gain per Volt | 19.48%/V More voltage-responsive (speed) than 72% of 235 Digital Mini servos |
| Voltage Range Width | 1.4 V Wider voltage range than 44% of 351 Digital Mini servos |
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