GM4820H Hollow Shaft Brushless Gimbal Motor
The GM4820H is a compact hollow shaft brushless gimbal motor designed for robotic joints, camera stabilization systems, UAV payload platforms, LiDAR mechanisms, pan-tilt units, and precision motion control equipment.
Featuring a lightweight 48mm outer rotor structure and a hollow shaft design, the GM4820H offers smooth direct-drive operation without gearbox backlash. Its compact profile makes it particularly suitable for space-constrained robotic applications requiring precise positioning, low vibration, and reliable torque output.
With optimized electromagnetic design and efficient brushless operation, the GM4820H is ideal for robotics developers, automation engineers, and UAV system integrators seeking a compact direct-drive motor solution.
Key Features
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Hollow shaft brushless gimbal motor
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Direct-drive design without gearbox
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Compact 48mm outer rotor architecture
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Hollow shaft for cable routing
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Lightweight construction
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Smooth low-speed operation
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Low vibration and low noise
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Suitable for robotic joints and stabilization systems
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Compatible with sine wave controllers
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Designed for precision motion applications
Typical Applications
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Robotic Joint Systems
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Camera Stabilizers
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UAV Payload Platforms
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Pan-Tilt Systems
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LiDAR Equipment
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Direct Drive Robotics
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Precision Motion Platforms
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Industrial Automation Equipment
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Research Robotics
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Intelligent Machinery
Specifications
| Parameter | Value |
|---|---|
| Model | GM4820H |
| Motor Type | Brushless DC Outrunner |
| Structure | 12N14P |
| Phase Number | 3 |
| Pole Pairs | 7 |
| Winding Type | WYE |
| Weight | 130g |
| Diameter | 48mm |
| Height | 20mm |
| Hollow Shaft | Yes |
| Hollow Shaft Diameter | 6mm |
| Voltage Range | 12V–36V |
| Maximum Voltage | 40V |
| KV Rating | 70KV |
| Speed @24V | 1680RPM |
| No Load Current | 0.12A |
| Stall Current | 4.1A |
| Torque | 0.31N·m |
| Resistance | 5.8Ω |
| Inductance | 3.8mH |
| Load Capacity | 0.3–1kg |
| Driver Included | No |
| Drive Method | Sine Wave / Square Wave |
| Operating Temperature | -40°C to +100°C |
Package Includes
- 1 × GM4820H Hollow Shaft Brushless Gimbal Motor
Applications
- Robotic Joint Motors
- UAV Camera Gimbals
- Camera Stabilization Systems
- Pan-Tilt Platforms
- LiDAR Rotation Systems
- Direct Drive Robotics
- Precision Automation Equipment
- Research and Development Projects
- Educational Robotics
- Motion Control Systems
FAQ
Does the GM4820H include a motor driver?
No. An external brushless motor controller is required.
Is this motor suitable for robotic joints?
Yes. The compact size and hollow shaft design make it suitable for lightweight robotic joints and articulated mechanisms.
What is the hollow shaft diameter?
The center hollow shaft diameter is 6mm.
Can it be used for camera stabilization?
Yes. The GM4820H is suitable for camera gimbals, UAV stabilization systems, and pan-tilt platforms.
Is the motor geared?
No. This is a direct-drive brushless motor without a gearbox.
What controller type is recommended?
Compatible sine-wave or square-wave BLDC motor controllers are recommended.
