Rod ends for aileron push rods

[IanLaw]

Drawings I'm using refer to Fafnir RE43 10 Rod Ends. These have a 1/4" hole in the "Ball" and are hollow shafted, to fit a 1/2"OD shaft.
I assume from the "RE" that these are ball bearing units.


I also need to source Rod Ends described as "Uniball" F45-19. These have a 1/4"dia. hole in the "Ball", but they are internally threaded 5/16-24. I think these may not be ball bearings.

These are clearly older part numbers and I'm having trouble sourcing them or their equivalents. These are for my Wolf Boredom Fighter biplane project. Sadly, the designer Don Wolf is deceased so I'd appreciate any leads.

Thanks. Ian