1218-N20 Self-Locking Worm Gear Miniature DC Motor 12V
1218-N20 Self-Locking Worm Gear Miniature DC Motor 12V
1218-N20 Self-Locking Worm Gear Miniature DC Reduction Gear Motor – 12V
The 1218-N20 Self-Locking Worm Gear Motor is a compact, high-performance miniature DC gearmotor designed for precision low-speed applications. Operating at 12V DC, this reduction gear motor delivers reliable torque transmission with the added benefit of a self-locking worm gear mechanism — meaning the output shaft stays locked in place when power is removed, making it ideal for positioning and holding tasks.
Available in both single shaft and dual shaft configurations, this versatile motor is suitable for robotics, automation systems, DIY electronics, smart home devices, and more. Its miniature N20 form factor makes it easy to integrate into tight spaces without sacrificing performance.
Made in Mainland China.
Key Features
- Self-Locking Worm Gear Design: Holds position without power — perfect for actuators and positioning systems
- 12V DC Operation: Widely compatible with standard power supplies and battery packs
- Miniature N20 Form Factor: Ultra-compact body fits easily into small enclosures and tight spaces
- Single & Dual Shaft Options: Flexible shaft configurations for a variety of mechanical setups
- Low-Speed Reduction Gearing: Delivers strong torque at reduced RPM for controlled motion
- CE Certified: Meets European conformity standards for safety and performance
- Output Power: <18.65W
- No battery or wireless module included — pure motor hardware for custom builds
Specifications
- Model: 1218-N20
- Voltage: 12V DC
- Motor Type: Worm Gear Reduction Motor
- Gear Type: Self-Locking Worm Gear
- Shaft Options: Single Shaft / Dual Shaft
- Output Power: <18.65W
- Certification: CE
- Origin: Mainland China
- Battery Included: No
- Wireless Functionality: No
Common Applications
- Robotics & automation projects
- Smart home actuators and locks
- DIY electronics and maker projects
- Camera pan/tilt systems
- Motorized valves and dampers
- Model vehicles and RC projects
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Frequently Asked Questions
Q: What makes the 1218-N20 worm gear motor "self-locking"?
A: The self-locking property of this worm gear motor means the gear mechanism prevents the output shaft from being back-driven when no power is applied. This is ideal for applications where you need the shaft to hold its position — such as motorized valves, positioning arms, or smart locks — without requiring continuous power to maintain that position.
Q: What is the difference between the single shaft and dual shaft versions?
A: The single shaft version has one output shaft on one side of the motor, while the dual shaft version has output shafts on both ends. The dual shaft configuration is useful when you need to drive two components simultaneously or when one shaft is used for a sensor or encoder while the other drives the load.
Q: Is this motor compatible with standard 12V power supplies and microcontrollers?
A: Yes. The 1218-N20 runs on 12V DC, making it compatible with standard bench power supplies, 12V battery packs, and motor driver boards commonly used with Arduino, Raspberry Pi, and similar microcontroller platforms. A motor driver (H-bridge) is recommended for directional control from a microcontroller.
Q: What type of projects is the N20 miniature gearmotor best suited for?
A: This miniature DC reduction gear motor is well-suited for robotics, DIY automation, smart home devices, motorized camera rigs, RC models, and any compact electromechanical project requiring low-speed, high-torque output in a small form factor.