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A Geared DC Motor has a gear assembly attached to the motor. The speed of motor is counted in terms of rotations of the shaft per minute and is termed as RPM .The gear assembly helps in increasing the torque and reducing the speed. Using the correct combination of gears in a gear motor, its speed can be reduced to any desirable figure. This concept where gears reduce the speed of the vehicle but increase its torque is known as gear reduction.

This 12V, 30:1 Gear Motor with Encoder is a powerful 12V motor with a 30:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1920 counts per revolution of the gearbox's output shaft. These units have a 0.61" long, 6 mm-diameter D- shaped output shaft. This motor is intended for use at 12V, though the motor can begin rotating at voltages as low as 1V.

Motor Connections

Wire Color Connection
Red Motor +
Black Motor -
Green Encoder Ground
Blue Encoder Supply
Yellow Encoder Phase A
White Encoder Phase B
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Geared DC Motor with Encoder (30:1)

Product Code: (H-ELC-MOT-GDC-3)


in stock


General Specifications
Shaft Diameter 6mm
Stall current @ 12V: 5000 mA, @ 6V: 2500 mA
Stall torque @ 12V: 111 oz·in, @ 6V: 55.5 oz·in
CPR 64
Free run current @ 12V: 300 mA, @ 6V: 250 mA
Free run speed @ 12V: 350 rpm, @ 6V: 175 rpm
Gear Ratio 30:1
Motor Type Brushed DC Motor
Power Supply
Phase Voltage 12V DC