PROBLEM TO BE SOLVED: To provide a bearing device for a wheel which prevents the separation of a seal at the assembling of the seal, prevents a failure of pressure-insertion by suppressing an inclination of the seal, and is improved in reliability.SOLUTION: A bearing device for a wheel comprises: a seal pressure-insertion part 23 in which a seal 9 is pressure-inserted into a deep position at an outer side rather than an end face 10c at an inner side at an internal periphery of an end face of an outer member 10; and a pressure-insertion guide part 24 which is formed larger in diameter than the seal pressure-insertion part 23 at the inner side via a step 23a from the seal pressure-insertion part 23. A tip of a fitting part 19a of a core grid 19 is formed thin in thickness, a seal member 20 is joined to the tip so as to cover the tip while wrapping around the tip, a nose part 21 larger in diameter than an outside diameter of the fitting part 19a is formed at an external peripheral face of the seal member, an interference d between the nose part 21 and the pressure-insertion part 24 is set at 0.1 to 0.2 mm in diameter, and a radial clearance S between the fitting part 19a of the core grid 19 and the pressure-insertion part 24 is set at 0 to 0.3 mm in diameter.


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    Titel :

    車輪用軸受装置


    Erscheinungsdatum :

    2018-09-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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