CV joint for drilling motor and method

A CV joint for a downhole drilling motor includes a center shaft including a top shaft section and a bottom shaft section. The top shaft section is at least partially housed within a cavity of a firstinsert, which is housed within a cavity of a rotor adapter. The bottom shaft section is at least partially housed within a cavity of a second insert, which is housed within a cavity of a drive shaftadapter. An outer surface of the top and bottom shaft sections may include multiple top shaft pockets and multiple bottom shaft pockets, respectively. The first and second inserts may each include a series of recesses. Top shear members may be partially housed within the top shaft pockets and the recesses of the first insert. Bottom shear members may be partially housed within the bottom shaft pockets and the recesses of the second insert. 种用于井下钻井马达的CV接头，包括中心轴，该中心轴包括顶部轴区段和底部轴区段。顶部轴区段至少部分地容纳在第插入件的腔内，该第插入件容纳在转子适配器的腔内。底部轴区段至少部分地容纳在第二插入件的腔内，该第二插入件容纳在驱动轴适配器的腔内。顶部轴区段和底部轴区段的外表面可以分别包括多个顶部轴凹窝和多个底部轴凹窝。第插入件和第二插入件可以各自包括系列凹部。顶部剪力构件