PROBLEM TO BE SOLVED: To obtain a structure which can further improve an intrusion prevention effect of foreign matters into an internal space in which rolling bodies are arranged while securing a degree of freedom of design.SOLUTION: A plurality of pieces of bolts 29 for supporting and fixing wheels 30 and discs 31 to a rotation-side flange 10 are screwed into screw holes 13 of the rotation-side flange 10 from the outside of an axial direction. An outer end opening part of the internal space 15 in the axial direction is blocked by a seal ring 16a. Tips of the bolts 29 are protruded from an inside face of the rotation-side flange 10 in the axial direction to an inner part in the axial direction. Tip edges of eaves lips 33 out of seal members 18a are made to approximately oppose tip external peripheral faces of the bolts 29. Weir parts 26a out of the seal members 18a and tip faces of the bolts 29 are superimposed on each other in the axial direction, and outside faces of the weir parts 26a in the axial direction and the tip faces of the bolts 29 are made to approximately oppose each other.SELECTED DRAWING: Figure 2

    【課題】設計の自由度を確保しつつ、転動体を設置した内部空間内への異物の侵入防止効果のより向上させる事ができる構造を実現する。【解決手段】ホイール30及びディスク31を回転側フランジ10に支持固定する為の複数本のボルト29を、回転側フランジ10のねじ孔13に軸方向外側から螺合する。内部空間15の軸方向外端開口部を、シールリング16aにより塞ぐ。各ボルト29の先端部を、回転側フランジ10の軸方向内側面よりも軸方向内方に突出させる。シール材18aのうち、庇リップ33の先端縁を、各ボルト29の先端部外周面に近接対向させる。シール材18aのうちの堰部26aと、各ボルト29の先端面とを軸方向に重畳させると共に、この堰部26aの軸方向外側面と、各ボルト29の先端面とを近接対向させる。【選択図】図2


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    Title :

    WHEEL SUPPORT ROLLING BEARING UNIT


    Additional title:

    車輪支持用転がり軸受ユニット


    Contributors:
    KATO AKIHARU (author) / BRITTA FOUR (author)

    Publication date :

    2017-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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