BALL JOINT AND HYBRID SUSPENSION ARM INCLUDING SAME

A ball joint according to one embodiment of the present invention comprises: a ball stud comprising a spherical ball and a rod extending upwardly from the ball; a bearing comprising an upper outer peripheral surface and a lower outer peripheral surface and configured to accommodate the ball; and a case comprising an upper inner peripheral surface which entirely comes into contact with the upper outer peripheral surface of the bearing and a stopper to which an upper end of the bearing is caught.