mlwass wrote
I have used the arbor with set screw several times mainly for drill press use and it has worked fine.
I'll put up some pictures of the spindle and arbor to show what I meant. First looking at the arbor on the blade it seemed kind of small compared to typical Shopsmith arbors, but off the blade not so bad I guess. I can see its heavy enough for a regular spindle.
The part that worried me was the threaded spindle and the set screw locking it on. I suppose it works but it seemed like there wouldn't be all that much contact between the arbor and spindle just on the threads, and of course no contact on the flat. The metal seems to be strong and hard so perhaps my concern is misplaced, but it is something I haven't seen before.
BuckeyeDennis wrote
On their vintage cast-iron radial arm saws, there are a couple of places where DeWalt used set screws to lock onto threaded shafts. To prevent damage to the shaft thread, they would place small cylindrical brass slugs between the set screws and the shaft threads. If you lose the little brass slugs, a short snip from a suitable gauge of solid-copper wire makes a serviceable replacement.
That sounds like a good idea to ensure a snug fit, but in this case there is the Shopsmith style flat so I can't just wind wire around the threads.
