I have a bench version that looks identical to that Delta which came from the "old" Harbor Freight about 1995 and has a Central Tool tag on it. It works great, but the two belts leave a bit to be desired. I upgraded my chuck to a JET as the POS supplied had about .030+ run out. I just moved mine to a new bench - it IS heavy for one person to lift !!

That casting on the back on mine hasn't cracked - yet - but it sure does look like the weak part on it and the fact that you were able to get parts does make me happy.