[PSA?] There are Mecanum wheels for DIY robots that are Technic-compatible

[SaperPL]

I got my hands on some mecanum wheels that are compatible with Technic axles, although it's a tight fit. It might be interesting for those who are playing with robotic sets from Lego.

The advantage over building those from Lego parts on your own should be that they are smaller and the rollers have curvature for smoother ride/more traction. 

I bought those on my local marketplace for ~12.99 USD a set including shipping, but there's no manufacturer packaging, only info is 48MM-K on the wheel body. Those seem to be available on aliexpress.

If you don't know what those are about, here's a good explanation:

My video is just a test of the wheels themselves to see if they work as the initial feel of the rollers is that they may slide, but once there is some weight put on the chassis, they have proper traction. It would make more sense to have them spread further apart like in the example forklift in explanation video and have precise control over each wheel, so four motors + powered up hub makes more sense than what I did there taking those for a first spin.

[Maaboo the Witch]

Woah, these look weird!

[jorgeopesi]

I watched them before and some made with lego.