To provide a cross shaft joint capable of suppressing increase of rotary torque of a shaft portion of a spider or a contact portion of a bearing cup, and to provide a steering device superior in steering stability by reducing bending torque.SOLUTION: In a cross shaft joint 15 in which a shaft portion 51 of a spider is oscillatably fitted to a bearing hole 41 of a yoke 4 through a needle bearing 6 and which includes a bearing cup 61 formed to seal the shaft portion 51, a columnar projecting portion is disposed on any of an inner bottom surface central portion of the bearing cup 61 and a tip end surface central portion of the shaft portion 51, and a straight slit S1 or a cross slit S2 is formed on a tip of the projecting portion. Further a cylindrical projecting portion is disposed on the inner bottom surface central portion of the bearing cup 61 of the needle bearing 6 or the tip end surface central portion of the shaft portion 51.SELECTED DRAWING: Figure 3
【課題】本発明は、スパイダーの軸部またはベアリングカップの接触部の回転トルクの増加を抑えることができる十字軸継手を提供し、折り曲げトルクを低減させることで操舵安定性の良好なステアリング装置を実現する。【解決手段】ヨーク4の軸受孔41に、ニードル軸受6を介して、スパイダーの軸部51を揺動自在に嵌合し、軸部51を密閉するように形成されたベアリングカップ61を備えた十字軸継手15において、ベアリングカップ61の内底面中央部または軸部51の先端面中央部のいずれかに円柱状の凸部を設け、さらに凸部の先端に一文字のすり割S1または十文字のすり割S2を設けている。また、ニードル軸受6のベアリングカップ61の内底面中央部または軸部51の先端面中央部のいずれかに円筒状の凸部を設けている。【選択図】図3
CROSS SHAFT JOINT
十字軸継手
2019-12-12
Patent
Electronic Resource
Japanese
SEAL RING FOR CROSS SHAFT JOINT, CROSS SHAFT JOINT, AND STEERING DEVICE
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