Veteran free-agent guard Erik Pears is scheduled to visit the 49ers on Thursday in Santa Clara, a source told CSNBayArea.com.
Pears (6 foot 8, 316 pounds) is an eight-year NFL veteran who has spent the past five seasons with the Buffalo Bills. He started all 55 games in which he appeared over the past four seasons.
Pears, who turns 33 in June, started all 16 games at right guard for the Bills last season after previous seeing all of his action at right tackle. According to Pro Football Focus’ grading system, Pears ranked last out of 44 guards who played 75 percent or more last season.