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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 8515MG-D |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
208.31 oz-in
15.00 kg-cm
1.5 N-m
7.4V
187.47 oz-in
13.50 kg-cm
1.3 N-m
5.0V
138.87 oz-in
10.00 kg-cm
1.0 N-m
Top 10%
|
| Speed |
8.4V
0.09 sec/60°
689.7 deg/s
114.9 RPM
7.4V
0.10 sec/60°
576.9 deg/s
96.2 RPM
5.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
Below Average
|
| Physical | |
| Weight | 0.60 oz17.0 gBelow Average |
| Dimensions |
L 1.10 in W 0.50 in H 0.906 in L 27.9 mm W 12.7 mm H 23.0 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Stainless Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Dead Band | 2 µs |
| Electrical & Environment | |
| Operating Voltage | 5–8.4 V |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 250 mm9.84 in |
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 99% of 363 Digital Micro servos at 5.0V |
| Speed | Below Average Faster than 18% of 361 Digital Micro servos at 5.0V |
| Weight | Below Average Lighter than 25% of 665 Digital Micro servos |
Performance Analysis
| Shaft Power | 1.71–4.43 W |
| Power Density | 8.885 W/in³ More power-dense than 95% of 625 Digital Micro servos |
| Torque Density | 8.1688 oz-in/g 4th-highest torque density of 363 Digital Micro servos |
| Torque-to-Volume Ratio | 278.69 oz-in/in³ Denser torque than 99% of 359 Digital Micro servos |
| Speed-to-Weight | 0.39216 (1/sec·g) Faster than 13% of 361 Digital Micro servos |
| Speed-Torque Trade-off | 20.83 Better balanced than 99% of 358 Digital Micro servos |
| Torque Gain per Volt | 14.71%/V More voltage-responsive (torque) than 32% of 302 Digital Micro servos |
| Speed Gain per Volt | 21.30%/V More voltage-responsive (speed) than 69% of 305 Digital Micro servos |
| Voltage Range Width | 3.4 V Wider voltage range than 75% of 553 Digital Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 64% of 220 Digital Micro servos |
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