Pololu Micro Metal Gearmotors
These micro geared motors from Pololu have a cross section measuring only 10×12 mm.
The Pololu 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. With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions except the 1000:1 ratio which is 3.5mm longer, so one version can be easily swapped for another if your design requirements change.
Pololu Micro Gearmotors
Motor Type | Stall Current |
Speed |
Stall Torque oz-in |
Stall Torque g.cm | Link |
---|---|---|---|---|---|
High Power Carbon Brushes (HPCB) 12V |
0.75A @ 12V | 6800 RPM | 1.3 oz-in | 90 | 5:1 HPCB 12V |
3400 RPM | 2.4 oz-in | 170 | 10:1 HPCB 12V | ||
2200 RPM | 3.5 oz-in | 250 | 15:1 HPCB 12V | ||
1100 RPM | 5.4 oz-in | 390 | 30:1 HPCB 12V | ||
650 RPM | 9.3 oz-in | 670 | 50:1 HPCB 12V | ||
450 RPM | 14 oz-in | 1000 | 75:1 HPCB 12V | ||
330 RPM | 18oz-in | 1300 | 100:1 HPCB 12V | ||
220 RPM | 25oz-in | 1800 | 150:1 HPCB 12V | ||
160 RPM | 35oz-in | 2500 | 210:1 HPCB 12V | ||
130 RPM | 42 oz-in | 3000 | 250:1 HPCB 12V | ||
110 RPM | 46 oz-in | 3300 | 298:1 HPCB 12V | ||
85 RPM | 69 oz-in | 5000 | 380:1 HPCB 12V | ||
35 RPM | 140 oz-in | 10000 | 1000:1 HPCB 12V | ||
High Power 6V |
1600mA @ 6V |
6100 RPM | 2 oz-in | 144 | 5:1 micro HP |
3100 RPM | 4 oz-in | 288 | 10:1 micro HP | ||
2000 RPM | 4.2 oz-in | 300 | 15:1 micro HP | ||
1000 RPM | 7.9 oz-in | 570 | 30:1 micro HP | ||
590 RPM | 12 oz-in | 860 | 50:1 micro HP | ||
410 RPM | 18 oz-in | 1300 | 75:1 micro HP | ||
310 RPM | 24 oz-in | 1700 | 100:1 micro HP | ||
210 RPM | 33 oz-in | 2400 | 150:1 micro HP | ||
150 RPM | 42 oz-in | 3000 | 210:1 micro HP | ||
120 RPM | 47 oz-in | 3300 | 250:1 micro HP | ||
100 RPM | 56 oz-in | 4000 | 298:1 micro HP | ||
84 RPM | 76 oz-in | 5500 | 380:1 micro HP | ||
31 RPM | 170 oz-in | 12000 | 1000:1 micro HP | ||
Medium Power 6V |
700mA @ 6V |
4400 RPM | 0.8 oz-in | 60 | 5:1 micro MP |
2200 RPM | 1.5 oz-in | 110 | 10:1 micro MP | ||
1400 RPM | 2.8 oz-in | 200 | 15:1 micro MP | ||
720 RPM | 4.6 oz-in | 330 | 30:1 micro MP | ||
420 RPM | 7.5 oz-in | 540 | 50:1 micro MP | ||
290 RPM | 11 oz-in | 780 | 75:1 micro MP | ||
220 RPM | 13 oz-in | 940 | 100:1 micro MP | ||
150 RPM | 18 oz-in | 1300 | 150:1 micro MP | ||
100 RPM | 24 oz-in | 1700 | 210:1 micro MP | ||
88 RPM | 31 oz-in | 2200 | 250:1 micro MP | ||
73 RPM | 33 oz-in | 2400 | 298:1 micro MP | ||
57 RPM | 50 oz-in | 3600 | 380:1 micro MP | ||
22 RPM | 90 oz-in | 6500 | 1000:1 micro MP | ||
Low Power 6V |
360mA @ 6V |
2500 RPM | 0.7 oz-in | 50 | 5:1 micro |
1300 RPM | 1.4 oz-in | 100 | 10:1 micro | ||
860 RPM | 2.4 oz-in | 170 | 15:1 micro | ||
450 RPM | 4 oz-in | 290 | 30:1 micro | ||
270 RPM | 6.1 oz-in | 440 | 50:1 micro | ||
180 RPM | 8.9 oz-in | 640 | 75:1 micro | ||
130 RPM | 10 oz-in | 740 | 100:1 micro | ||
90 RPM | 15 oz-in | 1100 | 150:1 micro | ||
65 RPM | 22 oz-in | 1600 | 210:1 micro | ||
54 RPM | 24 oz-in | 1700 | 250:1 micro | ||
45 RPM | 28 oz-in | 2000 | 298:1 micro | ||
36 RPM | 40 oz-in | 2900 | 380:1 micro | ||
13 RPM | 76 oz-in | 5500 | 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.
Above: Dimensions of LP, MP and HP Metal Gearmotors excl the HPCB type
Above: Dimensions of the HPCB type Metal Gearmotors
Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. The recommended upper limit for instantaneous torque is 2.5 kg-cm (35 oz-in) for the 380:1 and 1000:1 gearboxes, and 2 kg-cm (25 oz-in) for all the other gear ratios; we strongly advise keeping applied loads well under this limit. Stalls can also result in rapid (potentially on the order of seconds) thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP and HPCB) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.