Parts? Good luck. eBay your best bet, or try one of the old machinery forums like OWWM. Rockwell-era machinery isn't awfully popular either due to quality issues. There are probably fewer of them around than the earlier Delta stuff.
Try Joe at Plaza Machine.. He either has it or knows if there is someone who does.. He's a bit difficult to get ahold of.. so be patient.. [email protected]
He helped me connect to parts for my 7" horizontal bandsaw..