'Little Buggers Incorporated' thats the nick that comes to mind when you see these motors work. If you put four of these motors on the robot (refer to the picture below), it's almost like watching four ballet dancers performing in-sync. Well, I'm pushing a little bit too far with my comparison here but they are that good when it comes to moving things. If you are working on a small robot or automation project, they will be great provided that motor specs defined below meet your requirements.
Basically, this is the best DC gear-motor available in the hobby market today. It's an industrial-grade part and it's very compact and efficient.
Gear head data
We have tested four of these motors successfully with Pololu's Baby Orangutang Robot Controller. Maximum momentary current draw we observed including the micro was about 530 mA.