GreartisanDC 3V 750RPM 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

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 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!

The motor is a dependable choice for projects requiring strength and precision. Its high torque capacity makes moving heavy objects a breeze, and the 100RPM speed strikes a good balance between power and velocity.A standout feature is the durable metal gearbox, ensuring long-lasting performance even under stress. However, it's worth noting that the motor can produce a noticeable hum during operation, which might be a consideration depending on your application. In summary, the Greartisan motor is a sturdy option for various DIY projects, offering reliability and power with the slight drawback of operational noise.

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.