Bearing device
    9.
    发明授权
    Bearing device 失效
    轴承装置

    公开(公告)号:US06619852B2

    公开(公告)日:2003-09-16

    申请号:US09799270

    申请日:2001-03-05

    IPC分类号: F16C4300

    摘要: In a bearing device in which a free end of a shaft body to which a rolling bearing is mounted is bent outward in its radial direction into a shape to be pushed against an end face of an inner ring of the rolling bearing so as to prevent the rolling bearing from falling out, a raceway surface of the inner ring of the rolling bearing is subjected to hardening treatment, and other portion of the inner ring is made of raw material which is not hardened. With this arrangement, the caulked portion formed by the caulking plastically deforms the relatively soft inner peripheral corner of the inner ring and as a result, the caulked portion and the inner peripheral corner are adhered to each other strongly.

    摘要翻译: 在其中安装有滚动轴承的轴体的自由端的轴承装置中,在其径向向外弯曲成被推压到滚动轴承的内圈的端面的形状,以防止 滚动轴承脱落时,滚动轴承的内圈的滚道面进行硬化处理,内圈的其他部分由未硬化的原料制成。 通过这种布置,由铆接形成的铆接部将内圈的相对较软的内周角塑性地变形,结果,铆接部和内周角相互牢固地粘合。

    Bearing device and method of manufacturing the bearing device
    10.
    发明授权
    Bearing device and method of manufacturing the bearing device 有权
    轴承装置及其制造方法

    公开(公告)号:US06814495B2

    公开(公告)日:2004-11-09

    申请号:US10362338

    申请日:2003-02-20

    IPC分类号: F16C4304

    摘要: A bearing device comprising a shaft body having an axially cylindrical portion in a free end side thereof and a rolling bearing fitted around an outer peripheral surface of the shaft body, wherein the cylindrical portion is bent and deformed radially outward by a rolling caulking to be caulked thereby on an outer end face of an inner ring of the rolling bearing. An inner peripheral surface of the cylindrical portion is formed by a turning work, and a residual stress left in a surface layer of the inner peripheral surface of the cylindrical portion by the turning work is set to a value capable of restraining a crack generation ratio in the inner peripheral surface to less than a predetermined rate, desirably to not more than 5 kgf/mm2.

    摘要翻译: 一种轴承装置,包括:轴体,其轴向圆筒部分在其自由端侧;以及滚动轴承,其安装在所述轴体的外周表面上,其中所述圆筒部分通过滚动铆接径向向外弯曲以被铆接 从而在滚动轴承的内圈的外端面上。 圆筒部的内周面通过车削加工而形成,通过车削加工将圆筒部的内周面的表面层残留的残余应力设定为能够抑制裂纹产生率的值 内周面小于预定速率,优选为5kgf / mm 2以下。