Construction and Working Principle
Motor: permanent‑magnet stator, wound armature (rotor) with commutator, carbon brushes, bearings, and frame.
Gearbox: planetary or spur stages to multiply torque and reduce speed; optional low‑backlash configurations and long‑life lubrication.
Control: straightforward polarity reversal enables CW/CCW; speed can be adjusted via voltage, PWM, or external driver. Performance depends on the combined design of the motor, gearbox, brushes/commutator, and assembly precision.
Key Advantages of Brushed DC Motors
Cost‑effective drive solution with high starting torque and quick ramp‑up.
Simple installation and commissioning: "+ / –" wiring, easy CW/CCW reversal.
Flexible customization: voltage (3–48 V), speed, power, outer diameter, output shaft, gearbox ratio, encoder/brake on request.
Broad application range; maintenance mainly focuses on brushes/commutator and gearbox lubrication.
Notes and Best Practices
Brushes and commutator are wear items; define duty cycle and expected service life (e.g., B10) under specified load and temperature.
Mechanical and electromagnetic noise depend on ratio, speed, and load; provide targets with test distance and method.
For EMI‑sensitive systems, we recommend suppression components (RC snubber, inductor, or EMI filter) and proper grounding.
Brushed DC Motors' Typical Applications
① Household Appliances
Vacuum cleaners: Provide strong suction to help clean floors and furniture.
Electric shavers: Used to drive the blades to achieve quick shaving.
Fans: Used to drive the fan blades to provide air circulation.
② Automobiles
Window regulators: Control the opening and closing of windows.
Wiper systems: Drive the movement of wipers to ensure clear vision.
③ Industrial Equipment
Power tools: Such as electric drills, angle grinders, etc., providing high torque and the ability to start quickly.
Automation equipment: Used to drive various robotic arms and conveyor belts.
④ Robots
Driving wheels: Enable robots to move.
Actuators: Control the movement of the robot's arms and other components.
⑤ Electric Models
Remote control cars: Provide power to enable the model car to move quickly.
Aircraft: Used to drive small drones and remote-controlled aircraft.
Product Families
DC Brush Planetary Gear Motor — 16 / 32 / 42 Series
Compact, high torque density for toys, garden tools, office and light automation.
DC Brush Square Gear Motor — 60 / 70 Series
Robust square gearboxes for logistics lines, gates, and material handling.
DC Brush Motor (No Gearbox) — 45 / 46 / 52 Series
High‑speed direct‑drive options (e.g., 3000–6000 rpm) for blowers, pumps, and tools.
