EE WAS REMOVING A BEARING STUCK ON THE TAPERLOCKBY STRIKING IT WITH A HAMMER. HE DIDN'T FEEL NORSEE A PIECE OF BEARING RACE BREAK OFF AND LODGE IN HIS LEFT FOREARM. HE REPORTED TO NURSE'S OFFI CE ON 9/14/01 DUE TO SWELLING. METAL PIECE REMOVED FROM FOREARM AND SUTURE PUT IN.