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30:1 Micro Metal Gearmotor HP
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30:1 Micro Metal Gearmotor HP
This gearmotor is a miniature (0.94" x 0.39" x 0.47"), high-quality, high-power motor with 30:1 metal gearbox, similar to Sanyo’s popular 12 mm gearmotors. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft.
Key specs at 6 V: 1000 RPM and 120 mA free-run, 9 oz-in (0.6 kg-cm) and 1.6 A stall.
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 two different motors: high-power (HP) 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. Please see the micro metal gearmotor comparison table for detailed specifications of all our micro metal gearmotors. This dynamically-sortable table can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your particular application. A more basic comparison table is available below.
Some versions of the gearmotors are sold with an additional 1mm-diameter output shaft that protrudes from the rear of the motor. This 4.5mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add a custom-built encoder to provide motor speed or position feedback.
Gear Ratio | Speed @ 6V | Stall Torque @ 6V | Stall Current @ 6V | ![]() Gearbox Shaft Only | ![]() Gearbox & Motor Shaft |
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5:1 | 6000 RPM | 2 oz-in | 1600 mA | 5:1 micro HP | |
2500 RPM | 1 oz-in | 360 mA | 5:1 micro | ||
10:1 | 3000 RPM | 4 oz-in | 1600 mA | 10:1 micro HP | 10:1 micro HP |
1300 RPM | 2 oz-in | 360 mA | 10:1 micro | ||
30:1 | 1000 RPM | 9 oz-in | 1600 mA | 30:1 micro HP | 30:1 micro HP |
440 RPM | 4 oz-in | 360 mA | 30:1 micro | 30:1 micro | |
50:1 | 625 RPM | 15 oz-in | 1600 mA | 50:1 micro HP | 50:1 micro HP |
250 RPM | 7 oz-in | 360 mA | 50:1 micro | 50:1 micro | |
75:1 | 400 RPM | 22 oz-in | 1600 mA | 75:1 micro HP | |
170 RPM | 9 oz-in | 360 mA | 75:1 micro | ||
100:1 | 320 RPM | 30 oz-in | 1600 mA | 100:1 micro HP | 100:1 micro HP |
120 RPM | 12 oz-in | 360 mA | 100:1 micro | 100:1 micro | |
150:1 | 200 RPM | 40 oz-in | 1600 mA | 150:1 micro HP | |
85 RPM | 17 oz-in | 360 mA | 150:1 micro | ||
210:1 | 140 RPM | 50 oz-in | 1600 mA | 210:1 micro HP | |
60 RPM | 27 oz-in | 360 mA | 210:1 micro | ||
250:1 | 120 RPM | 60 oz-in | 1600 mA | 250:1 micro HP | |
50 RPM | 32 oz-in | 360 mA | 250:1 micro | ||
298:1 | 100 RPM | 70 oz-in | 1600 mA | 298:1 micro HP | 298:1 micro HP |
45 RPM | 40 oz-in | 360 mA | 298:1 micro | 298:1 micro | |
1000:1 | 32 RPM | 125 oz-in | 1600 mA | 1000:1 micro HP | |
14 RPM | 70 oz-in | 360 mA | 1000:1 micro |
Note: The 1000:1 gearmotors can generate enough torque to damage themselves. The stall torque values given for those two motors are theoretical, and we strongly recommend you avoid stalling them.
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Micro metal gearmotor dimensions (units in mm). |
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The gearbox has a long (0.365" or 9.27 mm), 3 mm-diameter D-shaped metal output shaft, and the brass faceplate has two mounting holes threaded for M1.6 screws (1.6 mm diameter, 0.35 mm thread pitch). It weighs approximately 0.35 oz (10 g). Versions with the extended motor shaft have a 1mm diameter round shaft that protrudes 4.5 mm from the rear of the motor, between the two motor terminals; this is not pictured in the above dimension diagram.
Note: The gearbox on the 1000:1 and 1000:1 HP micro metal gearmotors is 12.5 mm long. All of the other micro metal gearmotors have 9mm-long gearboxes, as shown in the above dimension diagram.
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We offer a wide selection of metal gearmotors that offer different combinations of speed and torque. Our metal gearmotor comparison table can help you find the motor that best meets your project’s requirements.
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Some of the Pololu metal gearmotors. |
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Pololu Micro Metal Gearmotor Bracket Pair - Black |
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Pololu Micro Metal Gearmotor Bracket Extended Pair |
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Pololu Ball Caster with 3/8" Metal Ball |
Data sheet
Miniature high-power motor from the Pololu MP series. Gear motor 5: 1,
the rotational speed of the shaft is 4400 rpm, the torque is 0.1 kg * cm (0.01 Nm).
The motor has an extended shaft which makes it easy to attach the encoder. Pololu 2376
No product available!
A small motor with a metal gear ending with a shaft with M3 thread, rotation speed 200 RPM, operating voltage 6 V. GA1036-N20M-0056
DC Micro motor module with metal gear with a gear ratio of 75:1. The motor is connected to the board containing the driver. DFRobot DFR0399
Small metal gear motor, rotation speed 136 RPM, operating voltage 6 V. GA1024-N20F-0037
Miniature, 6V brush DC motor with metal gear and 15.25:1 gear ratio. It has a cross section of 10 × 12 mm, and the D-shaped output shaft with a length of 9 mm and a diameter of 3 mm. Pololu 4785
Pololu high power miniature motor with carbon brushes. 380:1 gear motor, shaft speed 85 rpm, torque 5kg*cm. The motor has an extended shaft, which makes it easy to attach the encoder. Pololu 4799
Small metal gear motor, rotation speed 136 RPM, operating voltage 12 V. GA1218-N20W-0040
A small, high-power motor with a 50: 1 metal gear, 6 V operating voltage, 0.1 A to 1.5 A power consumption, 650 RPM, a maximum torque of 0.74 kg * cm and carbon brushes with increased durability. Pololu 3063
No product available!
Miniature medium-power, 6 V brushed DC motor with a 51.45:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. Pololu 2365
No product available!
No product available!
Miniature, 12V brush DC motor with metal gear with 15.25: 1 ratio. It has a cross section of 10 × 12 mm, and the D-shaped output shaft has a length of 9 mm and a diameter of 3 mm. It also has an extended motor shaft with dimensions of 4.5 × 1 mm. Pololu 4789
A small motor with a metal gear ending with a shaft with M3 thread, rotation speed 50 RPM, operating voltage 6 V. GA1036-N20M-0053
Small motor with metal gear and encoder, rotation speed 1000 RPM, operating voltage 6 V. GA46-N20E-0050
Small, high power motor with 5: 1 metal gear, 12 V operating voltage, power consumption from 0.06 A to 0.75 A, speed 6800 RPM, maximum torque of 0.09 kg * cm, carbon brushes and double-sided shaft. Pololu 3047
No product available!
This gearmotor is a miniature medium-power, 6 V brushed DC motor with a 297.92:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.
100:1 Micro Metal Gearmotor with Extended Motor Shaft
30:1 Micro Metal Gearmotor HP