N20 Gear Motor 6V 300RPM Shaft 10mm
Price in Sri Lanka

The N20 Gear Motor is a high-performance, miniature DC motor integrated with a precision metal reduction gearbox. The 6V 300RPM variant is a "high-speed" choice within the N20 family, offering rapid rotation while maintaining enough torque for light-duty mobile platforms. It features a 10mm D-shaped shaft, providing the standard length needed for secure mounting of wheels and couplers.

Specifications

• Rated Voltage: 6V DC (Operating range: 3V – 9V).
• No-Load Speed: 300 RPM (at 6V).
• Shaft Type: D-shape (flat side for non-slip mounting).
• Shaft Diameter: 3mm.
• Shaft Length: 10mm.
• Gearbox Material: All-metal (Precision brass and steel gears).
• No-Load Current: ~ 45mA.
• Stall Current: ~ 600mA (at 6V).
• Stall Torque: ~ 0.4 kgcm to 0.6 kgcm.

Features

• Brisk Rotational Speed: At 300 RPM, this motor is ideal for micro-rovers and line followers that need to move quickly across flat surfaces.
• Full Metal Gear Train: Unlike plastic gear motors, the N20 uses rugged metal gears that resist stripping, providing high reliability in competitive robotics.
• Standard 10mm Shaft: The extended D-shaft ensures that set screws have a flat surface to bite into, preventing wheels or gears from spinning freely under load.
• Compact Form Factor: Its small rectangular profile allows it to be integrated into extremely tight spaces, such as thin robotic arms or narrow chassis.

Pin and Connection Guide

• Terminals: Two small solder tabs at the rear of the motor.
• Bidirectional: The motor is fully reversible. Simply swap the positive and negative power leads to change the direction of rotation.
• Control Compatibility: Works seamlessly with standard motor drivers like the L298N, TB6612FNG, or DRV8833 for PWM-based speed control.

Common Applications

• High-Speed Micro-Robots: Driving small wheeled robots where agility and quick response times are required.
• Automated Mechanisms: Powering rapid-acting latches, shutters, or small component sorters.
• DIY Gadgets: Motorizing 3D-printed projects, rotating displays, or customized hobbyist toys.
• Precision Actuators: Used in lightweight pan-tilt systems and small-scale linear motion projects.

Usage Tips

• Mounting: Always use a dedicated N20 bracket to secure the motor. Avoid applying excessive pressure to the gearbox housing, as this can cause internal gear binding.
• Voltage Limit: While the motor can handle 9V for extra speed, 6V is the recommended operating voltage to maximize the motor's lifespan and prevent overheating.
• Wiring: The rear terminals are fragile. Use flexible 26AWG–30AWG wire and apply heat-shrink tubing over the soldered joints to provide strain relief.
• Stall Warning: Avoid prolonged stall conditions (where the motor is powered but the shaft is blocked), as the high current can quickly damage the small internal windings.