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Technical Specifications
Last Updated: 2026-10-26
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°
566.0 deg/s
94.3 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
|
| Running Current |
8.4V
0.440 A
440 mA
7.4V
0.370 A
370 mA
6.0V
0.320 A
320 mA
Below Average
|
| Stall Current | 3.7–5.2 A3700–5200 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 |
| Rotation/Support | Dual Bearings |
| 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 |
| Temperature | -15–65 °C5–149 °F |
| Water Rating | IP67 |
| Certification | CE | RoHS |
| 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 1060 Digital Standard servos at 6.0V |
| Speed | Average Faster than 51% of 1045 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 26% of 1880 Digital Standard servos |
| Running Current | Below Average Lower draw than 31% of 226 Digital Standard servos at 6.0V |
| Stall Current | Below Average Lower draw than 20% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.79–11.63 W |
| Power Density | 6.274 W/in³ More power-dense than 86% of 1768 Digital Standard servos |
| Torque Density | 7.0411 oz-in/g Stronger than 94% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 277.19 oz-in/in³ Denser torque than 94% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.09785 (1/sec·g) Faster than 34% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 71.96 Better balanced than 89% of 1034 Digital Standard servos |
| Current-per-Torque Ratio | 0.0101 A/oz-in More efficient than 79% of 331 Digital Standard servos |
| No-Load vs Stall Current Spread | 16.25 Narrower current spread than 56% of 179 Digital Standard servos |
| Torque Gain per Volt | 12.40%/V More voltage-responsive (torque) than 30% of 873 Digital Standard servos |
| Speed Gain per Volt | 13.36%/V More voltage-responsive (speed) than 36% of 874 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 57% of 1560 Digital Standard servos |
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