ND Micro Gear Reduction Motor is a compact, high-efficiency brushless DC gear motor designed for applications requiring precise speed control, stable torque output, long service life, and maintenance-free operation.
Using advanced Hall-sensor feedback and a fully electronic commutation system, the motor eliminates traditional brushes and mechanical contact parts, ensuring quiet operation, long-term reliability, and zero routine maintenance.

The internal permanent-magnet rotor delivers high power density, reduced secondary losses, and up to 23% lower power consumption compared to inverter-driven induction motors, making it an ideal choice for energy-saving, high-duty industrial automation.

With a wide speed control range (up to 2500–4000 rpm depending on driver version), stable low-speed torque, and integrated protection functions (overcurrent, undervoltage, open-phase), the ND Micro Gear Reduction Motor provides safe, stable, and efficient performance in continuous-running environments.

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Features

Brushless, Maintenance-Free Design

No brushes, commutator, or mechanical friction parts.
Hall sensors + transistorized ON/OFF electronic commutation ensure zero routine maintenance and long lifespan.

Stable Speed Control

Closed-loop control continuously compares set speed with real-time speed feedback.
Maintains constant rotation even under load fluctuations—ideal for precision equipment.

Wide Speed Control Range

Broader speed range than AC induction motors or frequency-converter solutions.
Provides reliable torque from low speed to high speed, suitable for variable-load environments.

High Energy Efficiency

Permanent-magnet rotor design reduces secondary rotor losses.
Power consumption reduced by ~23% vs. frequency-controlled induction motors.

Thin, High-Power Structure

Permanent-magnet rotor enables compact design with higher power density:
Motor body is up to 75 mm shorter while output power is 1.3× higher than comparable AC motors.

Low-Speed High-Torque Performance

Delivers strong, stable torque for continuous operation at low speed—ideal for gear-motor applications.

Built-In Protection Functions

Overcurrent protection
Undervoltage protection
Open-phase protection
→ Ensures equipment safety and prevents motor or driver damage.

Clear Motor Performance Curve

Continuous torque area
Short-term torque area
Maximum instantaneous torque
→ Helps users select proper model for load conditions.

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Technical Parameters

(Values vary by model: 25W / 60W / 80W / 90W / 120W / 200W brushless series)

Parameter	Specification
Rated Output Power	25W / 60W / 80W / 90W / 120W / 200W
Rated Voltage	24VDC / 90VDC / 220VDC (depending on model)
Rated Speed	2500 rpm (standard), optional 3000–4000 rpm
Speed Control Range	80–2500 rpm (continuous adjustable)
Maximum Instantaneous Torque	Model-dependent (refer to torque curve)
Rated Torque	As per motor model & reduction ratio
Rotor Inertia	0.006–0.046 J×10⁻⁴ kg·m²
Overload Protection	Electronic over-current cutoff
Voltage Protection	Undervoltage / overvoltage protection
Phase Error Protection	Open-phase protection
Frequency Tolerance	±1%
Voltage Tolerance	±10%
Insulation Class	Class E
Protection Grade	IP20 (motor)
Operating Temperature	–10°C to +40°C
Relative Humidity	≤ 85% (non-condensing)
Cooling Method	Natural air cooling
Applicable Gearbox Types	Parallel Shaft / Right-Angle / Planetary / Worm (depending on motor frame size)

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Application

ND Micro Brushless Gear Motors are ideal for compact automation and continuous-running systems, including:

• Smart home devices
  Automatic doors, curtain motors, service robots, smart furniture
• Medical & laboratory equipment
  Analyzers, small pumps, diagnostic devices, dosing systems
• Industrial automation
  Conveyors, feeders, machine modules, PCB handling, sorting systems
• Packaging & logistics machines
  Labelling machines, small conveyors, carton forming, vending equipment
• Office and commercial equipment
  ATMs, printers, kiosks, automated display systems
• Precision motion control applications
  Robotics, AGV/AMR accessories, camera sliders, 3D printers, CNC auxiliary motion