Never heard of it, but doesn't mean it can't be done.
However: although the final effect of the bar varies with other dims (center width, arm length) 1-3/4" OD is huge, never heard of one that big in the rear. If you use that size put lots of range in the arms' leverage (longer arm and/or point of attachment reduces bar strength).
I made my anti roll to be basically a solid, no give anti roll. It is made of . 134 x 1.75 diameter mild steel tube for that reason. If you want one that will flex some like an anti sway bar as used on the street, spring steel is needed.
My first attempt was 1 375 diameter x . 125 wall for the tube. Twisted it on the first pass. The bigger one has held up.
For an internal bearing maybe a large caged needle bearing of the proper diameter or a simple bronze bushing could be used. Picture is of the one I built. There are roller bearings inside the ends .
