I am using a threaded rod as an axle for a vehicle that I am creating for a project. I need that axle to go through a wooden piece and therefore I need bearings. I did some research and I found these things called “Ball Screws”. I am still not 100% sure if they are what I am looking for. So could someone please explain what are ball screws and do they act as basic bearings for threaded rods.
By bearings I mean: bearings used on shafts (Versa bearing) that are used to hold the shaft in place while the shaft can still spin.
If Ball Screws are not used for that purpose then what could I use for bearings for a threaded axle.