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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | XQ-BLS8145D |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
667.00 oz-in
48.03 kg-cm
4.7 N-m
7.4V
597.00 oz-in
42.99 kg-cm
4.2 N-m
6.0V
514.00 oz-in
37.01 kg-cm
3.6 N-m
Top 10%
|
| Speed |
8.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
7.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Average
|
| Stall Current | 4.5–5.2 A4500–5200 mABelow Average |
| Physical | |
| Weight | 2.57 oz73.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.787 in H 1.496 in L 40.0 mm W 20.0 mm H 38.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Stainless Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 210° |
| Mechanical Limit | 210° |
| Pulse Width | 800-2200 µs |
| Angle Sensor | Magnetic Encoder |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Water Rating | IP67 |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 48% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 25% of 1902 Digital Standard servos |
| Stall Current | Below Average Lower draw than 21% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.79–11.21 W |
| Power Density | 6.046 W/in³ More power-dense than 85% of 1759 Digital Standard servos |
| Torque Density | 7.0411 oz-in/g Stronger than 93% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 277.19 oz-in/in³ Denser torque than 93% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09785 (1/sec·g) Faster than 33% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 71.96 Better balanced than 89% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0101 A/oz-in More efficient than 77% of 315 Digital Standard servos |
| Torque Gain per Volt | 12.40%/V More voltage-responsive (torque) than 30% of 850 Digital Standard servos |
| Speed Gain per Volt | 11.36%/V More voltage-responsive (speed) than 25% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 57% of 1539 Digital Standard servos |
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