PROBLEM TO BE SOLVED: To inhibit reduction of life.SOLUTION: A wheel bearing structure includes: a spindle 2 formed with a small diameter step part 6 axially extending through a shoulder part 5; a hub 3 to which a wheel is attached; and a unit bearing 4 rotatably supporting the hub 3 so that the hub 3 can rotate relative to the spindle 2. The unit bearing 4 has a first inner race 11, a second inner race 12, an outer race 13, a first rolling element 14, and a second rolling element 15. The spindle 2 has a hardening treatment area A in which hardening treatment is performed. The hardening treatment area A leads from the shoulder part 5 to a non-contact surface part 63 of the small diameter step part 6 with which the first inner race 11 and the second inner race 12 do not contact.SELECTED DRAWING: Figure 2

    【課題】寿命低下を抑制する。【解決手段】肩部5を介して軸方向に延びる小径段部6が形成されたスピンドル2と、車輪が装着されるハブ3と、スピンドル2に対してハブ3を回転自在に支承するユニットベアリング4と、を備え、ユニットベアリング4は、第一インナレース11と、第二インナレース12と、アウタレース13と、第一転動体14と、第二転動体15と、を有し、スピンドル2は、硬化処理された硬化処理領域Aを有し、硬化処理領域Aは、肩部5から、小径段部6の第一インナレース11及び第二インナレース12が当接されない非当接面部63に至る。【選択図】図2


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    Titel :

    WHEEL BEARING STRUCTURE


    Weitere Titelangaben:

    車輪用軸受構造


    Beteiligte:
    TOYAMA RYOTA (Autor:in)

    Erscheinungsdatum :

    31.05.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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