The bearing is shown above has a 2-1/2" diameter hole.
I stopped at an equiptment repair facility today (never been there before) and ask to raid their dumpster.
There were two bearing races 5-1/2" diameter and 11" diameter that looked like they needed a new home.
Just could not pass up the 30 feet of metal band saw blade.
The total list from one stop today was 30 feet of band saw blade, a 5-1/2" diameter bearing race, a 11" diameter bearing race, a gear, a piece of 1/2" plate steel 6x16" and a dome shape with a 2" threaded end.
All this material is from places I have never visited before. The stuff is out there, you just need to stop and ask.