... We are well-managed, and sophisticated in bearing. Self-aligning Roller BearingsIt has two row rollers ,one common spherical raceway ... line of axis, the bearing can be automatically self-aligning.when the bearing bent by the force or ... .Type : single row self-aligning roller bearings 20200 series, 20300 series, 20200K series, 20300K series, Double row self-aligning roller bearings 23100 series , 21300 ...