The Micro Gear Motors by Ever-power provides hobbyists and robotics enthusiasts 
with an inexpensive solution with their motor requirements. The micro gear electric motor is capable of providing up to 1650g. cm of torque; with such a small size, these fantastic little motors hold their very own against complicated and Transmission Chain demanding tasks. Have a look beneath the specifications tab for more information on buying and torque/rpm figures.
Also available is the MB7 Bracket, which is featured in another of the item images and can make mounting the gear motor a very simple task, requiring simply two screws to add the assembly on your own application.
All the micro steel gearmotors have the same physical dimensions, so one version can be easily swapped for another if your style requirements change.
Long (9mm), 3 mm-diameter D-shaped metal output shaft.
4.5mm long, 1mm diameter back again shaft, ideal for optical encoders!