To provide a wheel bearing device for suppressing the occurrence of allowable tensile stress or greater on the rolling surface of an inner ring to prevent a reduction of a bearing life while preventing creepage.SOLUTION: The wheel bearing device includes an outward member 2, an inward member 1 having a flange part 6, a hub ring 4, and an inner ring 5, and double row rolling elements 8 rollingly stored between both the rolling surfaces of the inward member 1 and the outward member 2 via a cage. On the inner peripheral part located avoiding an inside rolling surface 5a of the inner ring 5, a protruded part 50 in a spline or serration form is provided. The protruded part is used for cutting the outer peripheral face of a small diameter step part 4b of the hub ring 4 so that the inner ring 5 is adhesively fitted to the small diameter step part 4b.SELECTED DRAWING: Figure 3

    【課題】 この発明は、内輪転走面への許容量以上の引張応力の発生を抑制し、軸受寿命の低下を防ぐと共に、クリープ防止を図った車輪用軸受装置を提供する。【解決手段】 外方部材2と、フランジ部6とハブ輪4と内輪5を有する内方部材1と、この内方部材1と外方部材2の両転走面間に保持器を介して転動自在に収容された複列の転動体8とを備えた車両軸受装置であって、内輪5の内側転走面5aを避けた位置の内周部に、スプラインまたはセレーションからなる凸部50が設けられ、凸部によりハブ輪4の小径段部4bの外周面を切削して内輪5が小径段部4bに密着嵌合する。【選択図】 図3


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    Title :

    WHEEL BEARING DEVICE


    Additional title:

    車輪用軸受装置


    Contributors:

    Publication date :

    2023-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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