DC Motors
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250:1 Micro Metal GearMotor HP
These tiny brushed DC gearmotors are intended for use at 6 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range (rotation can start at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor. The micro metal gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and offer a choice between three different motors: high-power (HP), medium-power (MP), and standard. With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.
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Pololu 12V, 80 RPM, 18 kg-cm, 131:1 Gear Motor w / Encoder
This 2.22″ x 1.45″ x 1.45″ gearmotor is a powerful, high-quality motor with 131:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 80 RPM and 300 mA free-run, 250 oz-in (18 kg-cm) and 5 A stall. -
Pololu 12V, 80 RPM, 18 kg-cm, 131:1 Gear Motor
This 2.22″ x 1.45″ x 1.45″ gearmotor is a powerful, high-quality motor with 131:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 80 RPM and 300 mA free-run, 250 oz-in (18 kg-cm) and 5 A stall. -
Pololu 12V, 100 RPM, 16 kg-cm, 100:1 Gear Motor w / Encoder
This 2.71″ × 1.45″ × 1.45″ gearmotor is a powerful 12V motor with a 100:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 6400 counts per revolution of the gearbox’s output shaft. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
Key specs at 12 V: 100 RPM and 300 mA free-run, 220 oz-in (16 kg-cm) and 5 A stall. -
Pololu 12V, 100 RPM, 16 kg-cm, 100:1 Gear Motor
This 2.22″ x 1.45″ x 1.45″ gearmotor is a powerful, high-quality motor with 100:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 100 RPM and 300 mA free-run, 220 oz-in (16 kg-cm) and 5 A stall. -
Pololu 12V, 150 RPM, 14 kg-cm, 70:1 Gear Motor w / Encoder
This 2.62″ × 1.45″ × 1.45″ gearmotor is a powerful 12V motor with a 67:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 4288 counts per revolution of the gearbox’s output shaft. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
Key specs at 12 V: 150 RPM and 300 mA free-run, 200 oz-in (14 kg-cm) and 5 A stall. -
Pololu 12V, 150 RPM, 14 kg-cm, 70:1 Gear Motor
This 2.13″ x 1.45″ x 1.45″ gearmotor is a powerful, high-quality motor with 67:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 150 RPM and 300 mA free-run, 200 oz-in (14 kg-cm) and 5 A stall. -
Pololu 12V, 200 RPM, 12 kg-cm, 50:1 Gear Motor w / Encoder
This 2.62″ × 1.45″ × 1.45″ gearmotor is a powerful 12V motor with a 50:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 3200 counts per revolution of the gearbox’s output shaft. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
Key specs at 12 V: 200 RPM and 300 mA free-run, 170 oz-in (12 kg-cm) and 5 A stall -
Pololu 12V, 200 RPM, 12 kg-cm, 50:1 Gear Motor
This 2.13″ x 1.45″ x 1.45″ gearmotor is a powerful, high-quality motor with 50:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 200 RPM and 300 mA free-run, 170 oz-in (12 kg-cm) and 5 A stall. -
Pololu 12V, 350 RPM, 8 kg-cm, 30:1 Gear Motor w / Encoder
This 2.54″ × 1.45″ × 1.45″ gearmotor is a powerful 12V motor with a 29:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1856 counts per revolution of the gearbox’s output shaft. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.
Key specs at 12 V: 350 RPM and 300 mA free-run, 110 oz-in (8 kg-cm) and 5 A stall. -
Pololu 12V, 500 RPM, 5 kg-cm,19:1 Gear Motor w / Encoder
This 2.54″ × 1.45″ × 1.45″ gearmotor is a powerful 12V brushed DC motor with a 18.75:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1200 counts per revolution of the gearbox’s output shaft. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft.
Key specs at 12 V: 500 RPM and 300 mA free-run, 84 oz-in (5 kg-cm) and 5 A stall. -
Pololu 12V, 500 RPM, 5 kg-cm,19:1 Gear Motor
This 2.05″ × 1.45″ × 1.45″gearmotor is a powerful brushed DC motor with 19:1 metal gearbox intended for operation at 12 V. These units have a 0.61″-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specs at 12 V: 500 RPM and 300 mA free-run, 84 oz-in (5 kg-cm) and 5 A stall. -
12V DC Motor 350RPM w/Encoder (12kg*cm)
This is a gear motor with encoder. It is a motor with a 34:1 gearbox and an integrated quadrature encoder that provides a resolution of 11 pulse single per round giving a maximum output of 374 within one round. With an Arduino controller and motor driver, applications for this include a closed-loop PID control or PWM motor speed control. This motor is an ideal option for mobile robot projects. The copper output shaft, embedded thread and reinforced connector greatly extends the motor’s service life.
