DC motors differ in size, speed, power, shape and some other parameters. They are great for making various mechanisms. do it yourself. For example, craftsmen with power from 2 to 20 W, craftsmen will be able to apply when creating electric toys, small fans, electric skewers with blowing.
More powerful models (from 20 to 100 or more watts) are used to create home-made machines, powerful fans, pumps. The proposed range of DC motors includes micromodels from 2 W to an impressive 100 watt units.
Cost: ~ from 200