That looks like a linear bearing. It won’t allow for rotational movement. So I don’t know where you are going to use it.
I already had a Saitek yoke so I bought a MSFFB2 stick and am installing the guts of it into the existing Saitek yoke. I am using 2 self-centering thrust bearings Amazon.com?
a needle bearing Amazon.com?
and the linear slide.
I am hopeful that I will not have to use the rotary/linear bearing because, as you said, it is expensive ($78) https://www.e-lrb.com/
Here’s a pic of the design. The first piece is on the printer now. I’m making the gears out of nylon using a .1mm nozzle for strength and to be able to get the detail of the teeth; so it’s going to take a while.
