N20 3V 150RPM Micro Metal Gear DC Motor With Encoder

N20 3V 150RPM Micro Metal Gear DC Motor With Encoder

The N20 is one of the most widely used micro metal gear motors in robotics and DIY electronics, prized for its compact size and solid power-to-size ratio. This 3V variant is rated for 150 RPM, giving a speed/torque balance suited to small mechanisms, camera gimbals, robotic arms, and other space-constrained builds. This version includes a built-in magnetic encoder disc and sensor at the rear of the motor, giving you real-time speed and position feedback — useful for closed-loop speed control, odometry, and precise motion projects.

It uses a fully metal gear train inside a sealed gearbox for durability under repeated use, with a 3mm D-shaft (~9mm length) that mounts easily to wheels, pulleys, and couplers using standard N20 hardware. Like other N20 motors, it runs on low voltage and draws modest current, making it easy to drive directly from common motor driver modules (L298N, TB6612FNG, DRV8833) and compatible with Arduino and other microcontroller platforms.

Features

• Compact N20 form factor — fits tight spaces in small robots and mechanisms
• Fully metal gear train for durability and reduced backlash
• 3mm D-shaft, ~9mm length, for direct coupling to wheels and pulleys
• Rated for 150 RPM at 3V
• Built-in magnetic encoder for speed and position feedback (closed-loop control)
• Compatible with common motor driver modules and microcontroller boards

Applications

• Small robots, robotic arms, and grippers
• Camera gimbals and pan-tilt mechanisms
• DIY electronics and Arduino-based projects
• STEM kits and educational robotics
• Compact automation and mechanism prototyping

Package Includes

• 1 × N20 3V 150RPM Micro Metal Gear DC Motor With Encoder

Note: Product images are for illustration purposes only. Actual product may vary slightly in appearance.