DC Motor R390 High Torque Micro Motor

= Powerful 6V-12V Brush Engine for Tools and Toys =

The R390 is a high torque micro DC motor rated for 6V to 12V operation, delivering 20000RPM at peak speed. This brush motor engine is ideal for power tools, hair dryers, toys, and screwdriver tools.

= Technical Specifications =

= Key Features =

High Torque Design - Suitable for mechanical loads

Compact Size - Fits in small devices

Ball Bearing Support - Smooth and quiet operation

Low Noise - Reduced vibration

Precision Balanced - Long operating life

== Applications ==

1. Electric screwdrivers
2. Hair dryers and blowers
3. RC vehicles and toys
4. Mini power tools
5. Robotic actuators
6. DIY project motors

√ Includes mounting holes

√ Pre-wired terminals ready

√ Suitable for PWM speed control

= Wiring and Connection =

Standard connections:

• Red wire: Positive terminal
• Black wire: Negative terminal
• Reverse polarity: Reverses rotation

= Performance Notes =

Speed varies with voltage:

• 6V: Approximately 10000 RPM
• 9V: Approximately 15000 RPM
• 12V: Full 20000 RPM speed

Torque output increases with voltage and current:

• Higher voltage provides greater torque
• Current draw increases with mechanical load
• Allow cooling for extended operation

Efficient Operation - Optimal at 9V to 12V

Reliable Brushes - Carbon brush for long life

= Common Uses =

The R390 motor excels in handheld devices where both speed and torque are needed. It provides sufficient power for small drilling and driving tasks. For continuous operation, ensure adequate ventilation around the motor body.

√ Mounting screws included

√ Shaft keyway for secure coupling

√ Balanced rotor for reduced vibration

= Troubleshooting =

Motor not starting:

• Check voltage supply
• Verify connections
• Avoid insufficient current supply

Excessive noise:

• Check shaft alignment
• Lubricate bearings
• Avoid loose mounting