🛠️ N20 Micro Metal DC Gear Motor

Overview

The N20 Micro DC Gear Motor is a compact, lightweight, and high-torque motor widely used in robotics, automation, smart devices, and precision DIY projects. It combines a small brushed DC motor with a metal gearbox, providing strong torque output at low speed while keeping the overall size extremely small. This makes it ideal for projects where space is limited but reliable mechanical power is required.

🔧 Key Features

• Compact Size: Fits easily in small mechanisms, mini robots, and portable electronic devices.

• Metal Gearbox: Provides durability, stability, and improved torque output.

• Wide Voltage Range: Works with common supply levels (3V–12V depending on model).

• Multiple Speed Options: Available in a variety of gear ratios to offer different speeds (RPM).

• High Torque Output: Perfect for lifting small loads, driving wheels, or powering actuators.

• Low Noise & Smooth Operation: Suitable for consumer devices and precision movements.

📐 Technical Specifications (Typical)

• Motor Size: ~12 mm diameter, length ~26–36 mm (with gearbox)

• Weight: ~10–12 g

• Shaft Type: 3 mm D-shape shaft

• Operating Voltage: 3V–12V DC (common variants: 5V, 6V, 12V)

• Gear Ratios Available: 1:30, 1:50, 1:100, 1:150, 1:298, 1:1000 (and others)

• No-Load Speed:

  • Low-speed variants: ~20–60 RPM

  • Medium-speed variants: ~100–200 RPM

  • High-speed variants: up to ~600+ RPM (depends on gear ratio)

• Stall Torque: 0.5 to 3 kg·cm (depending on voltage & gear ratio)

• No-Load Current: 40–100 mA (typical)

• Stall Current: 0.6–1.2 A (typical for 12V versions)

• Operating Temperature: –10°C to +60°C

• Mounting: Compatible with standard N20 brackets and clamps

• Output Shaft Position: Single-shaft output

🛠️ Recommended Applications

The N20 DC Gear Motor is suitable for:

• Mini robots and robotic arms

• Smart locks and home automation devices

• Model cars, mini vehicles, and RC applications

• Precision actuators and sliders

• DIY electronics and Arduino/Raspberry Pi projects

• Mechanical toys and custom engineering mechanisms

• Small conveyors, feeders, or rotating mechanisms

⚙️ Advantages

• Strong torque in a small form factor

• Works with simple motor drivers or direct power control

• Wide availability of speed and torque combinations

• Durable metal gearbox increases lifespan

• Low power consumption and versatile voltage input

⚠️ Notes for Buyers

• Choose your gear ratio based on speed vs. torque needs:

  • Higher ratio = more torque, lower speed

  • Lower ratio = more speed, lower torque

• Avoid stalling the motor for long periods to prevent overheating

• For precise position control, consider a version with encoder (if available)