I could use a hand choosing the mechanism for joining the ends of 2 flat metal bars (each around 3/4" wide and 1/8" thick) so that they pivot freely but without play.
What I'm currently planning is to drill a 1/8" hole in one and a 1/4" hole in the other, put a 1/8" diameter rivet through the bar with the 1/8" hole, then a thin plastic (Teflon maybe) washer, put a Teflon plain sleeve bearing (looks like a tiny 1/8" long pipe with a .126" I.D. and a 1/4" O.D.) into the 1/4" hole, pass the rivet through that, then through another thin plastic washer, a thin metal washer, and then close the rivet.
I think it's important to avoid metal-on-metal contact, but I'm not certain about that. Is there a simpler design that I could use?