80/20 linear motion?

[Nitroxextreme]

I have seen as well heard about the qualities of 80/20 and its linear motion ability.

We are looking into different methods of linear motion and when we came to 80/20 we could not understand how many teams have done it in the past.

We looked into their specific linear bearing(40-6800s if you have book) that use some sort of plastic to slide ontop of the rails, however we were worried alittle about binding as well as speed. We then came across their roller wheel assemblies(28-2200s in book) which seemed to have a wheel that ran inside the channel and looked like it would be both strong and fast, however we were worried about side load if just using a single wheel...hopefully we can get some to test.

Just wondering if anyone has had any experience with these types of 80/20 linear motion

Also if there is some other way to make linear motion work with 80/20 that you have found to work