3mm Shaft Gearmotors

Subcategories

With a cross section measuring only 10×12 mm (0.39″×0.47″), these small brushed DC 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. Some versions are also available with an optional extended motor shaft.

All of these Tamiya gearboxes have 3mm hexagonal shafts.


Products in category “3mm Shaft Gearmotors”

Pololu item #: 1124
Price: $5.49
Quantity:

This compact, inexpensive, low-current gearmotor (brushed DC motor with a 120:1 reduction gearbox) is well suited for use in small robots. At 4.5 V, it has a free-run speed of 120 RPM and a stall torque of approximately 20 oz-in (however, the built-in safety clutch might start slipping before the stall torque is reached). The D-shaped output shaft has a diameter of 3 mm and works with the Pololu wheels and 3mm universal aluminum mounting hub. This gearbox output shaft is perpendicular to the motor shaft.

Pololu item #: 1593
Price: $5.49
Temporarily out of stock. See product page to backorder.

This compact, inexpensive, low-current gearmotor (brushed DC motor with a 180:1 reduction gearbox) is well suited for use in small robots. At 4.5 V, it has a free-run speed of 80 RPM and a stall torque of approximately 30 oz-in (however, the built-in safety clutch might start slipping before the stall torque is reached). The D-shaped output shaft has a diameter of 3 mm and works with the Pololu wheels and 3mm universal aluminum mounting hub. This gearbox output shaft is perpendicular to the motor shaft.

Pololu item #: 1125
Price: $5.49
Quantity:

This compact, inexpensive, low-current gearmotor (brushed DC motor with a 120:1 reduction gearbox) is well suited for use in small robots. At 4.5 V, it has a free-run speed of 120 RPM and a stall torque of approximately 20 oz-in (however, the built-in safety clutch might start slipping before the stall torque is reached). The D-shaped output shaft has a diameter of 3 mm and works with the Pololu wheels and 3mm universal aluminum mounting hub. This gearbox output shaft is offset from but parallel to the motor shaft.

Pololu item #: 1594
Price: $5.49
Quantity:

This compact, inexpensive, low-current gearmotor (brushed DC motor with a 180:1 reduction gearbox) is well suited for use in small robots. At 4.5 V, it has a free-run speed of 80 RPM and a stall torque of approximately 30 oz-in (however, the built-in safety clutch might start slipping before the stall torque is reached). The D-shaped output shaft has a diameter of 3 mm and works with the Pololu wheels and 3mm universal aluminum mounting hub. This gearbox output shaft is offset from but parallel to the motor shaft.

Pololu item #: 1091
Price: $17.95
Quantity:

This gearmotor is a compact (1.50" x 0.59" x 0.47") brushed DC motor with 35:1 metal gearbox. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft that matches the micro metal gearmotor output shafts.

Key specs at 6 V: 350 RPM and 70 mA free-run, 20 oz-in (1.4 kg-cm) and 1.5 A stall.

Pololu item #: 1597
Price: $17.95
Quantity:

This metal gearmotor is a compact (1.16" x 0.61" x 0.61") brushed DC motor with an enclosed 35:1 metal gearbox. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft.

Key specs at 6 V: 460 RPM and 60 mA free-run, 13 oz-in (1.0 kg-cm) and 0.8 A stall.

Pololu item #: 1598
Price: $17.95
Quantity:

This metal gearmotor is a compact (1.16" x 0.61" x 0.61") brushed DC motor with an enclosed 115:1 metal gearbox. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft.

Key specs at 6 V: 140 RPM and 60 mA free-run, 35 oz-in (2.5 kg-cm) and 0.8 A stall.

Pololu item #: 638
Price: $19.75
Out of stock.

The Solarbotics GM12a 100:1 mini metal gear motor is a compact (1.14" x 0.39" x 0.47") brushed DC motor with metal gears, very similar to the Sanyo NA2S motor. The major difference is that these Sanyo motor look-a-likes have brass front faceplates (not steel ones), and cost less.

Pololu item #: 639
Price: $19.75
Quantity:

The Solarbotics GM13a 150:1 mini metal gear motor is a compact (1.14" x 0.39" x 0.47") brushed DC motor with metal gears, very similar to the Sanyo NA3S motor. The major difference is that these Sanyo motor look-a-likes have brass front faceplates (not steel ones), and cost less.

Pololu item #: 640
Price: $19.75
Quantity:

The Solarbotics GM14a 298:1 mini metal gear motor is a compact (1.14" x 0.39" x 0.47") brushed DC motor with metal gears, very similar to the Sanyo NA4S motor. The major difference is that these Sanyo motor look-a-likes have brass front faceplates (not steel ones), and cost less.

Pololu item #: 641
Price: $19.75
Quantity:

The Solarbotics GM18 30:1 mini metal gear motor is a compact (1.14" x 0.39" x 0.47") brushed DC motor with metal gears, similar to the Sanyo motors such as NA2S, NA3S, and NA4S. The major difference is that these Sanyo motor look-a-likes have brass front faceplates (not steel ones), and cost less.