Thanks for the information. They also sell internal motor gears for motors. They look good. How would the gears they have compare to the gears we use? I found another site, which probably sells much better motors for our application. They sell cd-rom and dvd-rom motors if. Also some motors for drills weighing at 55 grams and at 12 volts. Here it is
http://www.minebea-ele.com/en/product/motor/F_6000/ anyone see this one?