8pcs TT Motor Dual DC 3-6V Gearbox Motor 200RPM Ratio 1:48 Shaft Motor with 2.54mm Wire for Arduino DIY Smart Car Robot

Motor with gears are a perfect size. it is a bit noisy but its not the gears its the motor itself. But the noise is not an issue for me. This unit is placed in a 80-C Degree location and still chugs away.

Good

Needed to replace the motors on a MakerBot robot for my kid. They were always out of stock and the price seemed crazy. Found these on here and they work perfectly! I was worried maybe the speed would be off with a different motor on one axle and these were a match to the factory motor with speed and torque. You get 8 of them for the price of one MakerBot motor!

Muy buenos

But the motors seem weak...I don't have a different one for a reference, but at 5v and 1A stall current, i'd have expected it to be a bit stronger

I have only briefly tried one of the eight motors that I received. I was powering it from a 1 Amp, 5 Volt USB port, with a USB-to-terminal block adapter cable. It worked fine. I had to squeeze the shaft fairly hard, between my thumb and forefinger, to slow down the motor. It makes a little noise when running, but it wasn’t too loud, to me. And wow they are cheap, at qty 8 for about $12. Delivery was very quick, too.

Good for just playing around. Pretty weak motors. There is a nub sticking out on one side that gets in the way of the wheel. Tried cutting it off but it is an axil support of some kind.

Used these to build robots with K-1. They had a great time and all of the motors worked perfectly.