| 摘要 |
A coupling yoke for a double cardan joint, which is able to achieve effective weight reduction while ensuring necessary torsional stiffness, is provided. A coupling yoke for a double cardan joint includes: a pair of mutually facing flange portions each of which has a bearing hole for allowing a shaft portion, which is one of two shaft portions of each spider, to be rotatably installed and that protrude from each of both axial ends of a base portion in the axial direction. The base portion has a thick wall portion that couples the bearing holes of the diagonally arranged flange portions and that has an X shape when viewed in a direction along an axis of the shaft portion, which is the other one of the shaft portions of each spider and trimmed portions between adjacent thick portions of the X-shaped thick wall portion.
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