Acxico 3Pcs Mini Micro N20 Gear Motor DC 3V-6V Slow Speed Full Metal Gearbox DIY Robot Car

These work well for small RC car or tractor projects

The media could not be loaded. Really great gear motors for cheap. They do what they say they do and are well within spec of their stated RPM. I use them for little mechanical trinkets and they’ve never failed me. Some of them can be slightly noisier than others, so be aware of that - none of them are “quiet” though. Functionally they’re great.

Nice and strong, didn't need lube. I did put some silicon spray on there just because though.

inexpensive gearbox/motor combo, Have no idea on reliability. So far, so good, using in a prototype, likely not for it's intended purpose.

They spun a good story for my inventions.

worked great, couldn’t find these all over town at any store but here.

Pros:• seem very sturdily built• they're not quiet, but not any louder than I was expecting.• listed to be slow, are slowIssues:• (main issue) listed to be 104 RPM, but are closer to 60 RPM• 1 out of 3 had one of the wires detached (presumably a bad solder job)If it was running the speed it was supposed to, I'd of been fine with it.

The media could not be loaded. When I ordered these I expected a flimsy gear system that was adequate enough for a small show piece model of a machine but i was surprised of the intricate and tiny design, more over the torque output. I had attached a drive belt head on this that was almost bigger than this whole assembly, yet it moved my machine like a servo motor, extremely smooth.Unfortunately, due to its tiny size, my options for drive heads were mostly limited to 12 tooth gears, but luckily I did find a belt drive that used the tiny shaft.Will definitely buy more of these for my next project