Paired orbital joints and half shafts

The invention relates to a mating orbital joint comprising: a joint outer part (12); a joint inner part (13), wherein a first track pair (22A, 23A) expands towards the open side of the joint outer part (12) when the paired track joint is extended; the second rail pair (22B, 23B) expands towards the connecting side of the joint outer part (12) under the condition that the paired rail joint extends; a ball (14A, 14B) in each of the first and second track pairs; the invention relates to a ball cage (15) having circumferentially distributed cage windows (18), each of which receives one of the balls (14), the ball cage (15) having a non-circular shape when viewed in cross section, the non-circular shape having at least three maximum values and three minimum values. 本发明涉及一种配对轨道关节，所述配对轨道关节包括：关节外部件(12)；关节内部件(13)，其中第一轨道对(22A、23A)在配对轨道关节伸展的情况下朝所述关节外部件(12)的开口侧扩展；并且第二轨道对(22B、23B)在配对轨道关节伸展的情况下朝所述关节外部件(12)的连接侧扩展；各一个处于每个第一和第二轨道对中的滚珠(14A、14B)；具有周向分布的保持架窗口(18)的滚珠保持架(15)，所述保持架窗口分别接纳滚珠(14)之一，其中所述滚珠保持架(15)在横截面中观察具有非圆形的形状，所述非圆形的形