To provide a seal ring for a cross shaft joint which prevents deterioration of sealing performance caused by baking, and to provide a cross shaft joint and a steering device.SOLUTION: A seal ring for a cross shaft joint includes: a core member 30 including an annular bottom part 31 which contacts with a step surface 17 through a shaft part 18 at the inner side and an enclosing part 30a extending from the bottom part 31 over an entire periphery in a center axis direction to a radial outer position of a radial bearing 21; and an annular elastic member 40 made of elastomer and adhering to the core member 30. The elastic member 40 includes enclosing part side seal lips 41, 42 which adhere to the enclosing part 30a and contact with the radial bearing 21 over the entire periphery.SELECTED DRAWING: Figure 4
【課題】 ベーキングによるシール性能の低下を防ぐ十字軸継手用シールリング、十字軸継手及びステアリング装置を提供する。【解決手段】 内側に軸部18を通して段差面17aに接触する環状の底部31と、底部31から、全周にわたって中心軸線方向でラジアル軸受21の径方向外側位置まで延びた囲繞部30aとを備えた芯部材30と、エラストマーからなり、芯部材30に固着した環状の弾性部材40とを有し、弾性部材40は、囲繞部30aに固着し、全周にわたってラジアル軸受21に接触する囲繞部側シールリップ41、42を備えるものとする。【選択図】 図4
SEAL RING FOR CROSS SHAFT JOINT, CROSS SHAFT JOINT, AND STEERING DEVICE
十字軸継手用シールリング、十字軸継手及びステアリング装置
2019-08-01
Patent
Elektronische Ressource
Japanisch
SEAL RING, CROSS SHAFT JOINT, INTERMEDIATE SHAFT ASSEMBLY, AND STEERING DEVICE
Europäisches Patentamt | 2019
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