The N20 gear motor, a compact 12mm DC gear motor, is widely used in smart locks, robotics, and automation systems due to its low speed (10–300rpm), high torque output, and 3V–12V compatibility.
It is a micro DC motor with a gearbox that reduces speed from >3000rpm to 10–300rpm, increasing torque output.
10–30rpm: smart locks
50–150rpm: automation
100–300rpm: robotics
Supports 3V / 4.5V / 6V / 12V
Gear reduction enables torque multiplication, making it ideal for load-driven applications.
Smart lock motors
Vending machines
Robot drive systems
| Parameter | DC Motor | N20 Gear Motor |
|---|---|---|
| Speed | >3000rpm | 10–300rpm |
| Torque | Low | High |
Higher load requires lower speed and higher torque.
A D-shaped shaft improves stability and prevents slipping.
Noise exists due to gears, but is manageable at 50–100rpm.
Maintain voltage ≥3V
Avoid overload
Choose proper gear ratio
The N20 gear motor offers a balance of low speed, high torque, and compact size, making it a preferred solution for modern smart devices.
