【課題】外方部材に装着され、転動体の設置空間への異物侵入防止効果を向上させるラビリンスリップを有するアウター側シール部材を備える車輪用軸受装置であって、当該アウター側シール部材の外方部材への圧入作業を容易に行うことができる車輪用軸受装置を提供する。【解決手段】アウター側シール部材7は、外輪2に嵌合された芯金71と、芯金71に接合された弾性体からなるシール体72とを有し、シール体72は、芯金71における外輪2との嵌合面(円筒部71aの外周)に対して径方向外側に位置し、且つハブ輪3の車輪取り付けフランジ3bに向かって軸方向に延びるラビリンスリップ72dと、ラビリンスリップ72dに対して径方向内側の根元側に位置し、且つ外輪2のアウター側の端面2fと平行な平面からなる円環状の押圧面72fと、ラビリンスリップ72dと押圧面72fとの間に介在する円環状の凹溝72gとを有する。【選択図】図2

    Provided is a bearing device for a wheel, comprising an outer-side sealing member which is attached to an outer member and which has a labyrinth lip for improving an effect of preventing foreign matter from intruding into a space in which a rolling element is installed, wherein the outer-side sealing member can be easily press-fitted into the outer member. An outer-side sealing member 7 has: a metal core 71 fitted into an outer ring 2; and a sealing body 72 formed from an elastic body joined to the metal core 71. The sealing body 72 has: a labyrinth lip 72d which is positioned on a radially outer side of a fitted surface (outer periphery of a cylindrical portion 71a) of the metal core 71 fitted onto the outer ring 2 and which extends in the axial direction toward a wheel mounting flange 3b of a hub wheel 3; an annular pressing surface 72f which is positioned on the radially inner side and root side of the labyrinth lip 72d and which is formed from a flat surface parallel to an outer end surface 2f of the outer ring 2; and n annular recessed groove 72g interposed between the labyrinth lip 72d and the pressing surface 72f.


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    Title :

    車輪用軸受装置


    Publication date :

    2022-09-15


    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