This N20 gear motor has a running speed of about 60rpm@6V DC. It has reliable quality with large torque, especially suitable for joy microbit robot car smart home projects, etc. All you need to do is connect the positive and negative pole-pin, and it is simple enough for all the beginners.
30 rpm/min @0.06A/3VDC, Torque: 0.3 kgcm;
60 rpm/min @0.12A/6VDC, Torque: 1 kgcm;
120 rpm/min @0.3A/12VDC, Torque: 2 kgcm;
4 x N20 Gear Motor