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    • 7. 发明申请
    • Wheel Bearing Apparatus
    • 车轮轴承装置
    • US20110304197A1
    • 2011-12-15
    • US13214280
    • 2011-08-22
    • Takayuki NorimatsuHiroaki ItakuraHironori ImanakaSyougo SuzukiIsao HiraiHiroya KatoAkira FujimuraKikuo Fukada
    • Takayuki NorimatsuHiroaki ItakuraHironori ImanakaSyougo SuzukiIsao HiraiHiroya KatoAkira FujimuraKikuo Fukada
    • F16C33/78F16C19/38F16C19/36B60B27/02
    • F16C33/7896B60B27/00F16C19/186F16C19/386F16C33/7826F16C33/7876F16C33/7879F16C33/7886F16C2326/02
    • A wheel bearing apparatus has an outer member formed with double row outer raceway surfaces on its inner circumferential surface. An inner member includes a wheel hub with a wheel mounting flange integrally formed at one end and a cylindrical portion axially extending from the wheel mounting flange. At least one inner ring is fit onto the cylindrical portion of the wheel hub. The inner ring is formed with double row inner raceway surfaces on its outer circumferential surface. The double row inner raceway surfaces are arranged opposite to the double row outer raceway surfaces. Double row rolling elements are rollably arranged between the outer and inner raceway surfaces, via cages. A seal is mounted on one end of the outer member. The seal has integrally formed side lips adapted to be in sliding contact with the wheel hub. The base of the wheel mounting flange is formed to have a curved surface, in cross-section, of a circular arc. The seal has three inclined side lips each extending radially outward from the seal body. The lips are adapted to be in sliding contact with the base of the wheel mounting flange. Interference of the side lips against the base of the wheel mounting flange is set so that the radially inner side lip has a smaller interference than that of the radially outer side lips, in order.
    • 车轮轴承装置具有在其内周面上形成有双列外滚道表面的外部构件。 内部构件包括:轮毂,其轮毂安装凸缘一体地形成在一端,圆柱形部分从轮安装凸缘轴向延伸。 至少一个内圈装配在轮毂的圆柱形部分上。 内环在其外圆周表面上形成有双列内滚道表面。 双列内滚道表面布置成与双列外滚道表面相对。 双列滚动元件通过保持架可滚动地布置在外滚道表面和内滚道表面之间。 密封件安装在外部构件的一端上。 密封件具有适于与轮毂滑动接触的一体形成的侧唇。 车轮安装法兰的基部形成为具有圆弧状的弯曲表面。 密封件具有从密封体径向向外延伸的三个倾斜侧唇。 唇缘适于与车轮安装法兰的底座滑动接触。 侧缘相对于车轮安装凸缘的基部的干涉被设定为使得径向内侧唇缘具有比径向外侧唇缘更小的干涉。