A disc recliner includes a fixed plate having a plurality of outer teeth and a movable plate having a plurality of inner teeth meshingly engageable with the outer teeth to allow rolling movement of the movable plate relative to the fixed plate. A pair of wedges defining an eccentric is rotatably mounted between the fixed and movable plates and rotation of the wedges causes the rolling movement of the movable plate. An anchor is disposed between the wedges for rotation therewith. A lock plate is coupled to the anchor and is movable between a locked position engaged with the fixed plate to prevent rotation of the wedges and an unlocked position disengaged with the fixed plate to permit rotation of the wedges. A cam actuates the lock plate from the locked position to the unlocked position and rotates the wedges thereby causing the rolling movement of the movable plate.