Bearings built from Lego

[howitzer]

I was thinking of my entry for the most recent contest and realized that I need a large bearing for it and while searching for solutions I realized this isn't much talked topic in the forum so I was wondering if people could share their bearing designs for others to use. All kinds of designs would be interesting, regardless of type and purpose.

So here's a one quick and dirty bearing design that would fit my purposes, except it has some slack and the GBC balls aren't perfectly round so they don't roll smoothly.

[bruh]

What about using some small wheels such as 11 x 8 mm rims or 18 x 7 rims (both without rubber)? 

[msk6003]

Vespa wheel with 7 GBC balls can work as bearing.

[howitzer]

13 hours ago, bruh said:

What about using some small wheels such as 11 x 8 mm rims or 18 x 7 rims (both without rubber)? 

Many turntables in official sets use one wheel or another, so that's indeed a possibility. Also 1x1 round plates have been used with great success, see for example 

 

 

[bruh]

Ok, I haven’t thought about the 1 x 1 round plates

[ord]

There was some discussion recently in this topic:

This is the smoothest ball bearing design I've seen:

 

[howitzer]

15 hours ago, ord said:

There was some discussion recently in this topic:

This is the smoothest ball bearing design I've seen:

 

That design by Akiyki is indeed great, though unsuitable for my purposes (I need a design where there is an opening in the centre, as large as possible). Also what I need should be fully functional in any orientation. But I have an idea and now I'm waiting for the parts to arrive to test it...