Overview
Kpower HBL045 is an HV brushless digital servo motor designed for motion control in robotics and radio-control platforms. It features a brushless motor, metal gear train, and multiple control protocol options (PWM | TTL | RS-485).
Key Features
- High torque brushless motor
- High-precision metal gear
- Ultra high cycle lifespan
- Protocols: PWM | TTL | RS-485
- Position sensor: Potentiometer
- Horn gear spline: 25T φ5.82 mm
- Ball bearing: 2BB
- IP rating: IP42
Specifications
| Model | HBL045 |
| Type | HV Brushless Servo / Digital Servo |
| Stall Torque | 5.8 kg |
| Rated Torque | 1.5 kg |
| Torque (listed) | 4.5 kg.cm @ 6 V; 5.8 kg.cm @ 7.4 V |
| No-load Speed | 0.03 s |
| Speed (listed) | 0.06 sec/60 @ 6 V; 0.05 sec/60 @ 7.4 V |
| Operating Voltage | 4.8 ~ 8.4 V |
| Weight | 65 g |
| Weight (listed) | 65g |
| Dimension | 40 × 20 × 39.4 mm |
| Size (listed) | 40*20*39.4mm |
| Travel Angle Range | 120° (Customizable) |
| Horn Gear Spline | 25T φ5.82 mm |
| Gear Material | Metal |
| Motor | Brushless Motor |
| Protocol | PWM | TTL | RS-485 |
| No-load Current | 3500 mA |
| Position Sensor | Potentiometer |
| Case Material | Plastic + Aluminum Alloy |
| Ball Bearing | 2BB |
| Working Frequency | 50 ~ 333 Hz |
| Operating Temperature | -10 ~ 50°C |
| IP Rating | IP42 |
Applications
- Humanoid Robots
- Robotic Arms
- Exoskeletons
- Quadruped Robots
- AGV Vehicles
- ARU Robots
- UAV Drone
- R/C Aircraft
- Radio Control Helicopters
- Industrial Automation
- Robotics
- 600H / 700H / 800H Radio Control
Wiring (3-pin servo lead)
- Brown: GND
- Red: Vcc
- Orange: Signal
Control Signal Reference (PWM)
- Input signal pulse width (20 ms per cycle): 0.5 ms, 1 ms, 1.5 ms, 2 ms, 2.5 ms
- Servo output shaft angle reference: -90°, -45°, -0°, 45°, 90°
- Compatibility note: “Our digital servos extend compatibility to 50-300Hz high-frequency signals.”
Reference Notes
- Standard angle: 120°, 180°, 270°, 360°
- Standard speed: 0.10~0.15s/60° (~65RPM)
- Attainable speed: 0.3s/60° (~33RPM)
- Operating voltage reference: Standard Voltage 4.8V~7.4V; High Voltage: > 7.4V
- Servo dead band reference: Analog 1~5us, Our Servo 4us; Digital 1~3us, Our Servo 2us
- Torque selection note: “When choosing a servo, it is recommended to use one-quarter of the stall torque as the rated torque.”
- Operation model reference: Continuous; Short Time<10s Repeat; <1s, 60s Cool down
- Servo horn types shown: Flat, Cross, Round, Star, Single
Manuals
Details
Designed for robotics and RC motion control, the HBL045 combines an HV brushless motor with a durable metal gear train.
Key performance specs and the metal gear train at a glance for fast component selection.
Multiple horn shapes make it easier to match common linkages, hubs, and control arms.
Supports standard PWM control and higher-frequency signals commonly used in digital servo setups.
For continuous motion, selecting around one-quarter of stall torque helps balance heat, load, and service life.
Simple 3-wire connection: brown for ground, red for power, and orange for the control signal.
