PROBLEM TO BE SOLVED: To suppress the intrusion of foreign matter into a hub bearing.SOLUTION: A dust cover 20 blocks a clearance S between an internal peripheral face 1406 of a round hole 1404 of a knuckle 14 and an external peripheral face 1810 of an intermediate shaft part 1806 of a drive shaft 18 which is apart from the internal peripheral face 1406 to the output-side of a vehicle width direction at the inside of a hub bearing 16 in the vehicle width direction in a state that the drive shaft 18 and a hub 12 are connected to each other. The dust cover 20 includes an internal peripheral wall part 2002, an external peripheral wall part 2004 which opposes the internal peripheral wall part 2002, and blocks the clearance S, and a connection wall part 2006. Opening parts 2010 for discharging foreign matter such as water, mud and sand intruding into the external peripheral wall part 2004 of the dust cover 20 in a radial direction from a clearance S1 to the outside of the dust cover 20 in the radial direction are formed at a plurality of points which are set with intervals in a peripheral direction of the external peripheral wall part 2004.SELECTED DRAWING: Figure 2

    【課題】ハブベアリングの内部への異物の侵入を抑制する。【解決手段】ダストカバー20は、駆動軸18とハブ12とが結合された状態で、ハブベアリング16の車幅方向内側で、ナックル14の円孔1404の内周面1406と、この内周面1406から車幅方向外側に離れた駆動軸18の中間軸部1806の外周面1810との間の隙間Sを塞いでいる。ダストカバー20は、内周壁部2002と、内周壁部2002に対向し隙間Sを塞ぐ外周壁部2004と、接続壁部2006とを含んで構成されている。外周壁部2004の周方向に間隔をおいた複数箇所に、隙間S1からダストカバー20の外周壁部2004の径方向内側に侵入した水や泥、砂などの異物をダストカバー20の半径方向外側に排出する開口部2010が形成されている。【選択図】図2


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    Title :

    BEARING DEVICE FOR DRIVE WHEEL


    Additional title:

    駆動輪用軸受装置


    Contributors:

    Publication date :

    2018-04-26


    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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