TAMIYA72001 Planetary Gearbox Set

this gearbox is super nice. I needed a gearbox that would run super slow and steddy so I got two of these and was able to get the exact speed I wanted. it all went together quit well the assembly is simple almost lego like so it allows you to fit it to whatever you want to fit it to easily. To any hobbyist this is a vary good gear box to have lying around

the gearbox is really nice it shows how the gearbox works.

I didn’t resize how tiny this kit is. Lots of very small parts. I’m in the middle of reworking the kit for a specific small project I’m working on. It saved buying lots of parts individually. There are enough to experiment with. You need some basic gear technology if you are going to modify it. The motor is not real big and it’s easy to lock up the system if you over tighten the screws. It does have a list of ratios for each section and you can change it around if you understand planetary systems. You can simply purchase another kit and get many more parts pretty inexpensively.I’d consider this as an adult toy.. kids could maybe make a science project out of it with some guidance. I hav vision issues so I have to use my lighted magnifying glass an my new forceps to assemble it or modify it but I’m ok with that. It’s probably not strong enough to operate anything requiring lots of torque. Staged planetary systems can create massive torque for their size but this kit is tiny. So don’t expect too much of it.

Simple product and easy to assemble - its even color coded. Good motor too, but does not include a battery hookup. Cool educational toy.

This gearbox/ motor works as it is advertised and was not expensive. It was easy to assemble and I would recommend it to someone needing a higher torque electric motor for a low price, it also was delivered on time.

This gearset is very small. Pieces are cast together on a common molded frame. It says to trim the broken tabs for proper fit. Too small to demonstrate function. I returned and got refund date. 2 week later no refund so I notified Amazon who the notified seller. Seller sent this disclaimer "We outsource sales and shipping to Amazon". So this is where I am now, in the old "not me its them" game. Best not to take a chance on this inferior item and you wont be at this point...

I've built several of these for my vairous robotic projects. The nice things is, you can select your gear ratios. Very powerful planetary gear motor system. Educational, too.

Not what I expected it to be complicated assembly.