Micro Metal Geared Motors

These micro geared motors from Pololu and Solarbotics 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, so one version can be easily swapped for another if your design requirements change.
Motor TypeStall
@ 6V
@ 6V
Stall Torque
@ 6V oz-in
Stall Torque @ 6V g.cm





High Power






1600 mA

6000 RPM2 oz-in1445:1 micro HP
3000 RPM4 oz-in28810:1 micro HP
1000 RPM9 oz-in64830:1 micro HP
625 RPM15 oz-in108050:1 micro HP
400 RPM22 oz-in158475:1 micro HP
320 RPM30 oz-in2160100:1 micro HP
200 RPM40 oz-in2880150:1 micro HP
140 RPM50 oz-in3600210:1 micro HP
120 RPM60 oz-in4320250:1 micro HP
100 RPM70 oz-in5040298:1 micro HP
32 RPM125 oz-in90001000:1 micro HP



Medium Power




700 mA

2200 RPM3 oz-in21610:1 micro MP
730 RPM8 oz-in57630:1 micro MP
420 RPM13 oz-in93650:1 micro MP
290 RPM17 oz-in122475:1 micro MP
220 RPM19 oz-in1368100:1 micro MP
150 RPM24 oz-in1728150:1 micro MP
75 RPM46 oz-in3312298:1 micro MP





Low Power





360 mA

2500 RPM1 oz-in725:1 micro
1300 RPM2 oz-in14410:1 micro
440 RPM4 oz-in28830:1 micro
250 RPM7 oz-in50450:1 micro
170 RPM9 oz-in64875:1 micro
120 RPM12 oz-in864100:1 micro
85 RPM17 oz-in1224150:1 micro
60 RPM27 oz-in1944210:1 micro
50 RPM32 oz-in2304250:1 micro
45 RPM40 oz-in2880298:1 micro
14 RPM70 oz-in50401000:1 micro