PROBLEM TO BE SOLVED: To further reliably prevent water from entering an internal space, in a structure provided with a thin wall part in an axial outside part of an outer ring.SOLUTION: In a wheel supporting rolling bearing unit, a core metal 2a constituting a seal ring 1a includes: a fitting cylindrical part 4a internally fitted to an axial outside inner peripheral surface of an outer ring 9; and an inner diameter-side annular part 5a bent radially inward from an axial outer end part of the fitting cylindrical part 4a. The axial outer end part of the fitting cylindrical part 4a is positioned on an outside relative to a thin wall part 12 of the outer ring 9 relating to an axial direction.SELECTED DRAWING: Figure 2

    【課題】外輪の軸方向外側部に薄肉部が設けられた構造において、内部空間への水分の浸入をより確実に防止する。【解決手段】シールリング1aを構成する芯金2aは、外輪9の軸方向外側部内周面に内嵌された嵌合筒部4aと、この嵌合筒部4aの軸方向外端部から径方向内方に折れ曲がった内径側円環部5aとを有する。嵌合筒部4aの軸方向外端部は、軸方向に関して外輪9の薄肉部12よりも外側に位置している。【選択図】図2


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    Title :

    WHEEL SUPPORTING ROLLING BEARING UNIT


    Additional title:

    車輪支持用転がり軸受ユニット


    Contributors:

    Publication date :

    2018-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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