PROBLEM TO BE SOLVED: To provide a bearing device for supporting a wheel capable of suppressing collapse of roundness of a raceway groove, and improved in rigidity to prevent deformation in attaching a knuckle.SOLUTION: A bearing device includes at least a rotatable hub ring 27, an outer ring 1 disposed at an outer side of the hub ring 27 while fixed to a knuckle 50, and a plurality of rolling elements 43 assembled between an outside row raceway groove 33 and an inside row raceway groove 37 of the hub ring 27, between an outside row raceway groove 9 and an inside row raceway groove 21 of the outer ring 1, and between the inner ring raceway groove and the outer ring raceway groove, and further has a knuckle flange 3 fastened to the knuckle 50, on an outer peripheral face of the outer ring 1. The inside row raceway groove 21 of the outer ring is disposed at an inner diameter side of the knuckle flange 3 in the radial direction, and an annular small-diameter portion 15 projecting to an inner diameter side in the radial direction, is disposed between the outside row raceway groove 9 and the inside row raceway groove 21 of the outer ring 1 near a groove shoulder 22 close to the outside row raceway groove 9, of the inside row raceway groove 21.SELECTED DRAWING: Figure 1

    【課題】軌道溝の真円度崩れを阻止するとともに、剛性を高くしてナックルの取付変形を防止する車輪支持用軸受装置を提供する。【解決手段】回転可能なハブ輪27と、ハブ輪27の外側でナックル50と固定されて配される外輪1と、ハブ輪27の外側列軌道溝33と内側列軌道溝37と、外輪1の外側列軌道溝9と内側列軌道溝21と、前期それぞれの内輪軌道溝と外輪軌道溝との間に組み込まれる複数個の転動体43を少なくとも含み、外輪1の外周面に、ナックル50と締結されるナックルフランジ3を備えてなる軸受装置であって、外輪の内側列軌道溝21は、径方向でナックルフランジ3の内径側に備えられ、外輪1の外側列軌道溝9と内側列軌道溝21との間には、内側列軌道溝21における外側列軌道溝9寄りの溝肩22付近に、径方向内径側に突出する環状小径部15が設けられている。【選択図】図1


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    Titel :

    BEARING DEVICE FOR SUPPORTING WHEEL


    Weitere Titelangaben:

    車輪支持用軸受装置


    Beteiligte:

    Erscheinungsdatum :

    2016-04-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16C SHAFTS , Wellen / B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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