PROBLEM TO BE SOLVED: To provide a sealing device which has increased mud water resistance and thereby has improved sealing performance, and a vehicle bearing device with the same.SOLUTION: A sealing device 7 is provided that is constituted of a pack seal composed of: an annular seal plate 10 which includes a seal member 13 joined to a core metal 12; and a slinger 11 which includes a cylinder part 11a externally fit onto an inner ring 3 and an erecting plate part 11b extending to the radial-direction outside from the cylinder part 11a. The seal member 13 includes a side lip 13a which is formed while inclining to the radial-direction outside and is in slide-contact with the erecting plate part 11b. A cylindrical flange part 11c extending to the inside of a bearing from an external edge part of the erecting plate part 11b is formed, the flange part 11c is made to oppose the seal plate 10 via a radial-direction clearance, thereby a labyrinth seal 14 is formed. An auxiliary lip 13d inclining and extending to the radial-direction outside is formed at an outside diameter side of the side lip 13a, and a labyrinth seal 15 is formed which oppose the auxiliary lip 13d via an axial clearance δ between an end face of the flange part 11c and the auxiliary lip 13d.


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    Titel :

    密封装置およびこれを備えた車輪用軸受装置


    Erscheinungsdatum :

    2018-06-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16J Kolben , PISTONS / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen