公开(公告)号：US20080204929A1

公开(公告)日：2008-08-28

申请号：US12031099

申请日：2008-02-14

申请人： Shoji Masazuki ,  Toshifumi Hino ,  Kenichi Yano ,  Nobuhiko Sato

发明人： Shoji Masazuki ,  Toshifumi Hino ,  Kenichi Yano ,  Nobuhiko Sato

IPC分类号： G11B5/33 ,  F16C32/06 ,  H02K7/08

CPC分类号： G06G7/14 ,  F16C17/107 ,  F16C33/14 ,  F16C2220/70 ,  F16C2223/04 ,  F16C2223/80

摘要： An object of the present invention is to provide a method of manufacturing a fluid dynamic bearing device and a bearing part for a thrust bearing, both of which are applied to a flat and thin bearing part and are capable of preventing abrasion and scratching even if two parts make contact with each other. A fluid dynamic bearing mechanism 40 includes a shaft 1 functioning as an axis of rotational, a sleeve, a flange 3, a thrust plate 4, and a thrust bearing portion 22. The sleeve is disposed on the outer peripheral side of the shaft. The flange is disposed in the vicinity of the end portion of the shaft, and includes a bottom surface 3c perpendicular to a central axis direction of the shaft. A thrust receiver includes a front surface 4a opposed to the bottom surface. The thrust bearing portion is formed between the bottom surface and the front surface, and includes a plurality of thrust dynamic generation grooves 3a formed on the bottom surface. Particulates with hardness higher than that of the top surface are diffused and disposed on the bottom surface, and are then implanted in the bottom surface by applying pressure such that a portion of the particulates extends therefrom.

摘要翻译： 本发明的目的是提供一种用于制造流体动力轴承装置的方法和用于推力轴承的轴承部件，两者都被应用于平坦且薄的轴承部件，并且即使两个轴承部件也能够防止磨损和划伤 零件互相接触。 流体动力轴承机构40包括用作旋转轴线的轴1，套筒，凸缘3，止推板4和止推轴承部分22。 套筒设置在轴的外周侧。 凸缘设置在轴的端部附近，并且包括垂直于轴的中心轴线方向的底面3c。 推力接收器包括与底表面相对的前表面4a。 止推轴承部分形成在底表面和前表面之间，并且包括形成在底表面上的多个推力动力产生槽3a。 硬度高于上表面的颗粒被扩散并设置在底表面上，然后通过施加压力使得一部分微粒从其延伸而被植入到底表面中。