Greartisan DC 12V 136RPM Worm N20 High Torque Speed Reduction Motor with Metal Gearbox Motor for DIY RC Toys

Sturdy metal structure, holds together and can move good sized robots.

I submitted a question asking how I could mount this motor and gear box to a plate. After doing some research I found that if you do a search for "N20 motor mount" you will find motor mounts that are made specifically for all implementations that use this size (12mm) motor. Hope this helps everyone interested in items using N20 motors.Other than that, the motor and build quality appear very good. I did a test run and the motor and gear box were quieter than I expected.

was thinking was larger. motor for a hoy wheel. LOL

This motor does not provide anywhere near the amount of torque listed in the datasheet. If torque is important in your application, do not believe these specs.

It’s super slow, slower than I thought. It was okay for my art project.

Overall this seems like a handy little gearbox. Runs smooth and quiet. Others have complained about torque but it seems ok in my particular application. The thing that bothers me personally the most is that the output shaft has the flat the full length. Now I can't seal it with an o-ring, and there's no great reason to have a full length flat. If you guys update this motor or can do a custom one please make that simple change to improve the result.That mounting complaint is valid too, but not that big a deal. You could use some long 0-80 screws if you really wanted to, or drill your own. (like I'm going to have to fabricate my own shaft now).

very quiet running

Exactly as described and as pictured, good value