Lemme ask a "hand throttle" question...

[Trapdoor2]

Alternatively you could use a sleeve bearing - this one from McMaster-Carr is 3/8" ID and 7/16" OD: https://www.mcmaster.com/product/6391K625

Yes, I saw that. I figured with the narrow bearing area, an oilite bearing might wear out sooner than steel...not that it would wear out in my lifetime.