GMP20-180SH 6V 24V High Torque Gearmotor 180 Series Brushed DC Motor with 20mm Planetary Gearbox for Automotive & Industrial Automation

The 180 Series Brushed DC Motor with 20mm Planetary Gearbox is a compact, high-torque integrated drive system that combines the widely used 180 brushed DC motor with a precision 20mm diameter planetary gearbox. The 180 motor features a standardized cylindrical form factor (approximately 20mm diameter and 25-30mm body length) with reliable brush commutation and high-grade magnets, providing excellent power density for its size. When matched with the 20mm planetary gearbox, this unit delivers substantial torque multiplication in a short overall length. It is an ideal solution for automotive subsystems, consumer appliances, medical devices, and industrial automation where cost-effective, reliable actuation is required.

Model:: GMP20-180SH

Rated torque (kg.cm):: 3.5kg.cm max

Weight:: 55g

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Proven 180 Motor Performance: The 180 brushed DC motor offers a well-established balance of size, power, and cost. Available with precious metal or carbon brushes, it provides smooth operation, good efficiency, and long life. Multiple winding options support 3V, 6V, 12V, or 24V operation, making it adaptable to battery-powered or fixed-voltage systems.

High Torque Multiplication: The integrated 20mm planetary gearbox features multiple stages of hardened steel planet gears, achieving reduction ratios from 5:1 up to 1000:1. This significantly increases output torque while reducing speed, enabling the gearmotor to drive substantial loads in confined spaces.

Compact and Uniform Profile: With both motor and gearbox sharing the same 20mm diameter, the assembly maintains a smooth cylindrical shape, ideal for mounting into tubular housings or round cavities. Total length typically ranges from 50-65mm depending on gearbox stages.

Low Backlash and High Efficiency: Precision-machined gear components keep backlash low (typically below 2° per stage), while overall gearbox efficiency remains between 70-90% depending on reduction ratio. The output shaft is supported by a robust bearing for high radial and axial load capacity.

Simple and Cost-Effective Control: Unlike brushless systems, this brushed gearmotor requires only simple DC voltage or PWM control, reducing electronics cost and complexity. It is an economical choice for high-volume applications.