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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HB7545GS |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
569.49 oz-in
41.01 kg-cm
4.0 N-m
6.0V
472.26 oz-in
34.01 kg-cm
3.3 N-m
Above Average
|
| Speed |
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
Average
|
| Running Current |
7.4V
5.500 A
5,500 mA
6.0V
4.500 A
4,500 mA
Bottom 10%
|
| Stall Current | 0.3–5.5 A300–5500 mABelow Average |
| Physical | |
| Weight | 2.75 oz78.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.787 in H 1.594 in L 40.0 mm W 20.0 mm H 40.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | MOS |
| Gears | Metal |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 60° |
| Mechanical Limit | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Waterproof |
| Idle Current | 0.320 A320 mA |
| Connectivity | |
| Connector | JR | JST |
| 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 | Above Average Stronger than 89% of 1055 Digital Standard servos at 6.0V |
| Speed | Average Faster than 65% of 1038 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 16% of 1872 Digital Standard servos |
| Running Current | Bottom 10% Lower draw than 4% of 226 Digital Standard servos at 6.0V |
| Stall Current | Below Average Lower draw than 18% of 569 Digital Standard servos |
Performance Analysis
| Shaft Power | 7.28–11.70 W |
| Power Density | 5.922 W/in³ More power-dense than 85% of 1762 Digital Standard servos |
| Torque Density | 6.0546 oz-in/g Stronger than 88% of 1048 Digital Standard servos |
| Torque-to-Volume Ratio | 239.02 oz-in/in³ Denser torque than 90% of 1053 Digital Standard servos |
| Speed-to-Weight | 0.10684 (1/sec·g) Faster than 43% of 1031 Digital Standard servos |
| Speed-Torque Trade-off | 56.67 Better balanced than 83% of 1029 Digital Standard servos |
| Current-per-Torque Ratio | 0.0116 A/oz-in More efficient than 69% of 330 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.071 Lower idle draw than 41% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 1.22 Narrower current spread than 97% of 179 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 52% of 1552 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0005 Finer dead band than 98% of 501 Digital Standard servos |
Notes
Also comes in a 180 or 270 degree version.
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