Bearing device and method of manufacturing the bearing device
    13.
    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。

    Fastening structure including a bolt having a serration that is press-fit into a bolthole of a flange
    15.
    发明授权
    Fastening structure including a bolt having a serration that is press-fit into a bolthole of a flange 有权
    紧固结构包括具有压配合到凸缘的螺栓中的锯齿的螺栓

    公开(公告)号:US06537007B1

    公开(公告)日:2003-03-25

    申请号:US09716220

    申请日:2000-11-21

    IPC分类号: F16B3704

    摘要: A fastening structure capable of preventing deterioration in the flatness of a surface of a flange portion (2) when a serration (7) of a bolt (5) is press-fit into the flange portion (2). In this fastening structure, one portion in an axial direction of an outer peripheral surface (6) of the bolt (5) is provided with the serration (7). The bolt (5) is press-fit into a bolthole (3) formed through the flange portion (2) of a mounting member (1). The serration (7) is located apart from respective end surfaces (2A) and (2B) of the flange portion (2) by first and second distances (D, C), and the first and second distances (D, C) each exceed 13% of the thickness (A) of the flange portion (2). With this arrangement, the serration (7) presses a bolthole inner peripheral surface (13) only in the region located far apart from both of the end surfaces (2A and 2B) of the flange portion (2).

    摘要翻译: 一种当螺栓(5)的锯齿(7)压配合到凸缘部分(2)中时能够防止凸缘部分(2)的表面的平坦度劣化的紧固结构。 在该紧固结构中,螺栓(5)的外周面(6)的轴向方向上的一部分设置有锯齿(7)。 螺栓(5)压配合到通过安装构件(1)的凸缘部分(2)形成的螺栓孔(3)中。 锯齿(7)通过第一和第二距离(D,C)与凸缘部分(2)的相应端表面(2A)和(2B)分开,并且第一和第二距离(D,C)各自超过 凸缘部分(2)的厚度(A)的13%。 通过这种布置,锯齿(7)仅在与凸缘部分(2)的两个端面(2A和2B)相距较远的区域中挤压螺栓内周面(13)。