公开(公告)号：US20160131191A1

公开(公告)日：2016-05-12

申请号：US14931032

申请日：2015-11-03

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Hiromi SONOBE ,  Yuta NAKANO

IPC: F16C35/02 ,  F16C33/08

CPC classification number: F16C35/02 ,  F16C7/023 ,  F16C33/08 ,  F16C33/12 ,  F16C35/067 ,  F16C43/00 ,  F16C43/02 ,  F16C2202/04 ,  F16C2223/00 ,  F16C2226/12 ,  F16C2226/52 ,  F16C2226/80 ,  F16C2240/54

Abstract: A bearing device includes a bearing member provided with a circumferentially extending sliding surface and a housing holding the bearing member on an inner circumferential surface thereof. The bearing member is provided with a bearing outer peripheral surface on one side thereof facing the housing. The bearing outer peripheral surface is surface roughened. The housing is provided with a housing inner peripheral surface on one side thereof facing the bearing member. The housing inner peripheral surface is surface roughened. When a mean height Rc of a roughness curve element of either of the bearing outer peripheral surface and the housing inner peripheral surface is Xμm, the remaining other of the bearing outer peripheral surface and the housing inner peripheral surface has a material ratio Rmr (Xμm) of roughness curve being equal to or less than 10% in at least one measurement direction.

Abstract translation: 轴承装置包括具有周向延伸的滑动表面的轴承部件和在其内周面上保持轴承部件的壳体。 轴承构件在其面向壳体的一侧上设置有轴承外周面。 轴承外周表面粗糙化。 壳体在其面向轴承构件的一侧上设置有壳体内周面。 壳体内周面被粗糙化。 当轴承外周面和壳体内周面的任一方的粗糙度曲线要素的平均高度Rc为Xμm时，轴承外周面和壳体内周面的剩余部分的材料比Rmr（Xμm） 的粗糙度曲线在至少一个测量方向上等于或小于10％。