It is a moot point now but,
normally the disk blades have "bumpers" as you pictured,
( the large round washers on the center of the shafts)
these are meant to rub together to have a neutral effect on bearing side thrust, -----especially wood bearings!!
Also, the bearing material is usually rock maple
( or hard rock maple as it is sometimes called)( I didn't check to see what you used)
If you find your bearings are short lived, do modify so the "bumpers" rub each other, rendering side thrust non existent.
If the disk has very limited use, you might get by in the short run.
that said, nice job!
