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公开(公告)号:US09470268B2
公开(公告)日:2016-10-18
申请号:US14618274
申请日:2015-02-10
CPC分类号: F16C33/765 , F16C19/54 , F16C33/664 , F16C33/6644 , F16C33/80 , F16C33/82 , F16C2300/28 , F16C2370/12 , G11B5/4813 , G11B19/2036
摘要: A ball bearing (rolling bearing) containing lubricant sealed therein is provided between a shaft and a sleeve. A labyrinth seal (seal gap) is provided at an end portion of the shaft or the sleeve in the axial direction. A permanent magnet is disposed such that a magnetic pole is located in proximity to the labyrinth seal. A magnetic seal effect that utilizes diamagnetism acting on evaporating oil is provided at the labyrinth seal.
摘要翻译: 在轴和套筒之间设置容纳润滑剂的滚珠轴承(滚动轴承)。 在轴或套筒的轴向端部设有迷宫式密封(密封间隙)。 设置永磁体,使得磁极位于迷宫式密封件附近。 在迷宫式密封处提供了利用作用于蒸发油的反磁性的磁密封效应。