The Bears signed OG-C Andre Gurode on Tuesday and waived DT Amobi Okoye.
Gurode has played in 151 career games with 127 starts in 10 seasons. He reached the Pro Bowl every year from 2006-10 as a Cowboy and is a two-time All-Pro player.
Last season, Gurode played in 13 games with five starts for the Ravens.
Okoye appeared in six games this season and made seven tackles and one sack.