DC Brush 6V Mini Gear Motor, Geared Motor 1218GE‑N20 Reduction Geared Motor(DC 3V 30RPM)

Worked great for my use....a 3d printed Hilbert curve marble run. It turns the ladder perfectly... But don't let that fool you, the torque is so light.. It took just barely touching it to stop it from turning.

I got it for use in a windmill model for a production of Elf Jr. Worked as expected, and the speed was just about right. The 3mm flanges I ordered separately worked just fine. The drive shaft was D shaped to catch the Allen screw in the flange.

I don't like to write negative reviews...however sometimes things need to be said. I ordered two of the N20 motors (1 of 1 speed and another of a different speed). They arrived timely. In no case did the packing state the rotation speed...and upon further investigation, no number on the packaging matched the number etched onto the motor or any numbers as described on Amazon. So...I had to get out my power supply and count RPMs on each motor to know which was which. It appears that I have been sent the correct motors. I am an artist. I use these in automata and love them. Wonderfully small, not power hungry, strong, quiet.

excellent quality

While I didn't need this motor assembly for it's intended purchase it was perfect for what I needed it for: upgrading a toy the manufacturers failed to spec properly. I was able to get this thing wired up to a 9v battery terminal and a switch with no issues and fortunately the adapter for the toy only needed slight modifications to fit this product. If you're curious the toy is the marble augur from from that marble genius or whatever brand. The included motor is so bad it may as well not have been included. But the torque on this motor assembly is FANTASTIC!

motor would not run , i returned it

Comes with plastic spur gear, not metal like in listing's picture. Mine stripped (on the inside) after it was stalled a number of times. (pulls about 0.85amp at stall) If you have an application where it stalls often maybe try to find one with a metal spur gear.

This thing is really tiny. It worked, but didn't work for my application of powering an automatic marble roller I built. If you need a really tiny motor to drive something light weight this should work well. It's constructed with tiny brass metal gears which shouldn't slip or break easily, but the motor doesn't have much torque.

As described

I'm using this motor/gearbox to power a small boiler feed pump. It works fine, and the given torque rating (320g-cm) appears to be more or less correct. I'd give it 5 stars apart from the fact that the specifications are very sketchy and the given locked rotor torque values can't possibly be correct. Also also note that in the listings for at least some of the other speed/voltage combinations the power output is given as 30W. Again clearly nonsensical.