Hello. Question to the manufacturers. Tell me what kind of electric motors you have for voltages from 5 to 12 volts. Small in size. Execution can be both plastic and metal. The speed of revolutions should be approximately 30-70 rpm. And the cheapest for the price. By type of operation: Conventional with a rotor and Stepper with a rotor, i.e. both types. You can offer all the options that are.
Hello.
You can view our full selection of brushed DC motors and stepper motors here:
https://www.pololu.com/category/22/motors-and-gearboxes
For the lowest cost motors, I would suggest checking the Pololu Plastic Gearmotors and the Solarbotics Gearboxes categories.
- Patrick