a method for manufacturing a bearing shell assembly for a ball joint includes the following steps : a ) a bearing shell having a plastic extension is produced ; b ) a spring element is arranged in a region of the plastic extension ; and c ) the spring element is fastened to the bearing shell by deformation of the plastic extension . the invention further relates to a bearing shell assembly for a ball joint , including a bearing shell and a spring element , the spring element being non - detachably connected with the bearing shell .