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    • 84. 发明公开
    • ROLLING BEARING
    • 滚动轴承
    • EP2725247A1
    • 2014-04-30
    • EP12805230.5
    • 2012-06-21
    • NTN Corporation
    • SASAKI, KatsuakiRYOUNO, YoshiakiLIAN, Shuguang
    • F16C33/78F16C19/06
    • F16C33/7856F16C19/06F16C33/7823F16C33/7833F16C2220/04F16C2231/00F16C2326/01F16C2361/61
    • A rolling contact bearing assembly includes a seal member having a seal lip segment. The seal lip segment includes a waist portion having, as viewed in a cross section, a bent V-shape such that a surface of the seal lip segment on outer side defines a relief recess and also includes a protrusion portion distal to the waist portion and having a tapered shape narrowing towards a free end thereof. The seal member installed in the bearing assembly applies urging force on one of inner and outer raceway rings, against change in degree of interference of the protrusion portion with the raceway ring. The protrusion portion includes such high wear material that rotation of the bearing assembly results in wear of the protrusion portion to cause the protrusion portion to make non-contact status or light contact status of a contact pressure of substantially zero.
    • 滚动接触轴承组件包括具有密封唇段的密封构件。 密封唇部段包括腰部部分,该部分在横截面中具有弯曲的V形,使得密封唇部段在外侧上的表面限定了释放凹部并且还包括远离腰部的突出部以及 具有朝其自由端变窄的渐缩形状。 安装在轴承组件中的密封构件抵抗突起部与滚道环的干涉程度的变化而对内圈和外圈滚道环中的一个施加推力。 突起部分包括高磨损材料,使得轴承组件的旋转导致突起部分的磨损,从而使突起部分处于非接触状态或接触压力基本上为零的轻微接触状态。