Greartisan DC 3V 250RPM N20 High Torque Speed Reduction Motor with Metal Gearbox Motor for DIY RC Toys

Nice tiny but powerful dc motor. Definitely does not run at the same speed with reversed polarity, but not a huge deal

Like others, I needed a motor with more torque than a standard 6v motor. I ended up getting three at different speeds. Not as quite as I would like it to be, but it is also not too loud.

I ordered this to replace a motor in an rc winch. It was the right size and the installation was easy. When I tested it, the winch had zero keep/brake. It would free spool. Update, the seller contacted me to troubleshoot and ultimately will replace. 2nd update, unable to send replacement. Refund provided. Great customer service!

I made a persistence of vision toy, but a bare 5v dc motor didn't have the torque to properly spin it up. This one does, and the shaft has a nice flat for a set screw. These little guys aren't cheap, but they really seem to do the trick.

I bought this to build a demonstration model of miniature 1/72 scale contra-rotating propeller. The price is very reasonable for a motor like this. I’m amazed at the small size and smooth operation of this motor, which runs almost silently. It’s a bit slower (it’s listed at 100 rpm) than I anticipated, but it will work fine to show how a contra-rotating gearbox and prop work. It’s amazingly only about 1.25” long and about .5” wide, so it’s really tiny compared to many other 6v motors. The gearbox is really a small work of art, and runs exceptionally quiet. I gave it 5 stars, as it seems to run a bit slower than 100rpm (like maybe 70-80 rpm). It’ll work for me, but if you’re looking for something a bit faster, go with one of the higher speeds the vendor has listed. I will probably buy a couple more higher rpm models from this vendor.

Very very very small about the size of a tab from a can of soda....UPDATE! This little motor packs a punch it’s gonna work perfectly for what I need

Apparently there are some measurements in the last picture, don't purchase this without knowing it's about the size of a quarter and useless

Despite the size turned out to be with a lot of power on the shaft. Need care when connecting power wires. Great product. I recommend for control units and movement.