| 摘要 |
In a joint section between a shaft and a universal-joint yoke a tip surface on the tip end of the shaft and an inside surface of a connecting section of the yoke fit together in concave-convex engagement. The tip surface contacts the inside surface at two contact locations, and a clearance between these surfaces is formed between the two contact locations, whereby movement of the tip end of the shaft is restricted and vibration of the shaft is prevented.
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