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    • 35. 发明授权
    • Bearing seal and swing device
    • 轴承密封和摆动装置
    • US07914209B2
    • 2011-03-29
    • US12366391
    • 2009-02-05
    • Hiroshi YamamotoRyuusuke KomuraJun Maruyama
    • Hiroshi YamamotoRyuusuke KomuraJun Maruyama
    • F16C33/72F16J15/32
    • F16C33/74F16J15/3224
    • A bearing seal includes an outer seal easily displaceable in the radial direction, an inner ring as a ring-shaped rigid portion not extendable in the radial direction, an inner seal having a seal lip, and an outer ring arranged on the outer peripheral portion of the outer seal, in which the spring constant of the inner seal is set to be larger than the spring constant of the outer seal. The sealing performance between the inner seal and the pin is ensured by using the ring-shaped rigid portion as a boundary. When the pin is displaced in the radial direction, the ring-shaped rigid portion is integrally displaced with the pin via the inner seal, and the displacement of the ring-shaped rigid portion can be absorbed by the outer seal.
    • 轴承密封件包括在径向方向上易于移位的外部密封件,作为不能沿径向延伸的环形刚性部分的内圈,具有密封唇缘的内部密封件和布置在 内部密封件的弹簧常数被设定为大于外部密封件的弹簧常数的外部密封件。 通过使用环形刚性部分作为边界来确保内密封件和销之间的密封性能。 当销沿径向位移时,环形刚性部分经由内密封件与销一体地移位,并且环形刚性部分的位移可以被外部密封件吸收。