Help Choosing a Motor

I am interested in making electric rollerblades. Unlike a skateboard, I will need two motors. Also unlike a skateboard, the motors do not need to be terribly strong because there will be two of them. I would just like advice on a good motor that I can order two of for decent speed, as well as one with a 5mm diameter shaft. Thanks!

why 5mm shaft ? look at hobbyking

I guess it could be otherwise, I just own a few pulleys with 5mm diameter holes

I am new to motors so I have no idea what motors to start with.

I think you may want to read up on some of hte existing skate threads, both for boards and inlines, so you can learn what you need to know about motors and required power to move you around at the speed and accelerations you want, so you can then figure out what motor size and winding, controller size and type, motor/wheel gearing, and battery you'll need.

What parts you need depends on your weight, terrain you need to ride on, wind conditions you expect, distance you need to go, acceleration rate you need, etc.


These are some of the various non-board skate threads that may help you:

https://endless-sphere.com/forums/search.php?keywords=skates*&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search

There's other good info in the skateboard threads, but there's many more of those so a general search is less useful.

So by looking at Hobbyking and learning a bit more about motors, I have discovered this one:

https://hobbyking.com/en_us/turnigy-multistar-4225-610kv-16pole-multi-rotor-outrunner.html?___store=en_us

It is a bit pricey because I need two but would this motor suffice?

One thing that kinda stumped me was the maximum operating voltage of a lot of these. When looking online, most motors of electric vehicles run around the 30v range, which is odd when this one runs at 15v - though having two of them - one in each boot - would make more sense. Any wisdom?