| 摘要 |
Disclosed herein is a universal joint yoke 1 having a rotational axis Y-Y and an opposed pair of arms 3 with bores 9 having a common axis X-X; the sectional shape of the arms in that plane perpendicular to the rotational axis Y-Y and passing through the common bore axis X-X having end portions 10 inturned towards the rotational axis Y-Y so that a greater depth h of bore may be obtained than the bore depth h' of a yoke of equivalent radial size formed from the same thickness material e and having arms 16 wherein the corresponding section is part circular. |
