The Micro Gear Motors by Ever-power provides hobbyists and robotics enthusiasts with a cost effective solution to their motor needs. The micro gear electric motor is capable of supplying up to 1650g. cm of torque; with such a small size, these fantastic small motors hold their personal against complex and demanding tasks. Take a glance under the specifications tab for more information on buying and torque/rpm figures.
Also available is the MB7 Bracket, which is featured in one of the item images and may make mounting the gear motor a simple task, requiring simply two screws to attach the assembly on your own application.
All of the micro metal gearmotors possess the same physical dimensions, so one version can be very easily swapped for another if your design Auto Chain requirements change.
Long 
(9mm), 3 mm-diameter D-shaped metallic output shaft.
4.5mm long, 1mm diameter back shaft, great for optical encoders!