Reply by adaughhetee

One option may be tread-all. Recently shop-notes Vol.20 Issue 119 made a shaping center using 5/8” threaded rod It fit directly into a 5/8” pillow block bearing and they used jam nuts against the grinding wheels to hold them in place.You may want to step up to 3/4” for more rigidness. I don’t know that thread-all would be the best but $10 is a lot better than $40 when your on a budget.