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    • 10. 发明申请
    • BEARING DEVICE FOR WHEEL, AND AXLE MODULE
    • 轴承和轴组件的轴承装置
    • US20100331093A1
    • 2010-12-30
    • US12676955
    • 2008-09-10
    • Masahiro OzawaYuichi AsanoMasayuki KurodaTohru NakagawaKiyoshige YamauchiMitsuru Umekida
    • Masahiro OzawaYuichi AsanoMasayuki KurodaTohru NakagawaKiyoshige YamauchiMitsuru Umekida
    • B60B35/14B60B35/18F16D3/20F16D3/22F16C19/18F16C33/62
    • B60B27/0005B60B27/00F16C19/186F16C33/64F16C35/0635F16C2326/02F16D1/072F16D3/2237F16D2003/22326F16D2300/10
    • Provided is a bearing device for a wheel capable of suppressing a backlash in a circumferential direction, excellent in coupling workability of a hub wheel and an outer joint member of a constant velocity universal joint, and excellent in strength owing to stable fitting between the hub wheel and the outer joint member of the constant velocity universal joint. An axle module using such bearing device for a wheel is also provided. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween. Hardness of at least press-fitting start end portions of the projecting portions is set to be higher than hardness of a recessed-portion forming region. A hardness difference therebetween is set to be equal to or larger than 20 points in HRC.
    • 本发明提供一种轮毂的轴承装置,其能够抑制圆周方向的间隙,轮毂轮和等速万向接头的外侧接头构件的联接作业性优异,并且由于轮毂轮之间的稳定配合而具有优异的强度 和等速万向节的外接头构件。 还提供了一种使用这种用于车轮的轴承装置的车轴模块。 在外接头构件的轴部的外表面和轮毂圈的孔部的内表面之一上设置有沿轴向延伸的突出部。 突出部沿着轴向压入另一个,并且凹部通过压入突出部而彼此形成。 因此,形成凹凸嵌合结构,其中突出部和凹部通过其间的配合接触区域的整个区域彼此紧密地保持。 突起部的至少压入开始端部的硬度被设定为高于凹部形成区域的硬度。 它们之间的硬度差在HRC中设定为等于或大于20点。