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公开(公告)号：US20150298725A1
公开(公告)日：2015-10-22
申请号：US14442780
申请日：2013-07-26
申请人： NSK Ltd.
CPC分类号： B62D5/0403 , B62D5/0409 , B62D6/10 , F16C19/06 , F16C35/042 , F16C35/067 , F16C2326/24
摘要： According to an electric power steering system of the present invention, a bearing support housing member supporting at least one rolling bearing is preferably formed of a resin which can be continuously used in a temperature environment ranging from −40° C. to 85° C., which is made of a resin composition containing a fibrous filler ranging from 30% by mass to 55% by mass, which has a coefficient of linear expansion ranging from 1.2×10−5 to 5.5×10−5 (1/° C.) in both a fiber direction and a perpendicular direction to the fiber direction in a temperature range from 23° C. to 80° C., and which has a coefficient of water absorption equal to or less than 4% when being left in water at a temperature of 23° C. for 24 hours.
摘要翻译： 根据本发明的电动助力转向系统，支撑至少一个滚动轴承的轴承支撑壳体优选地由可在-40℃至85℃的温度环境中连续使用的树脂形成。 其由线性膨胀系数为1.2×10 -5〜5.5×10 -5（1 /℃）的含有30质量％〜55质量％的纤维状填料的树脂组合物构成。 ）在纤维方向和垂直于纤维方向的方向上，在23℃至80℃的温度范围内，并且当水分在水中时具有等于或小于4％的吸水系数 温度23℃24小时。
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公开(公告)号：US20240141954A1
公开(公告)日：2024-05-02
申请号：US18272683
申请日：2022-01-17
申请人： NSK LTD.
IPC分类号： F16C33/38
CPC分类号： F16C33/3806 , F16C33/3856 , F16C33/3887
摘要： A crown type cage for a ball bearing includes an annular main portion, a plurality of pillar portions protruding in an axial direction from the main portion at predetermined intervals in a peripheral direction, and a spherical pocket formed between the adjacent pillar portions and capable of holding balls. The pillar portion has a pair of claw portions of which tip end portions are spaced apart from each other, and a connection portion that connects the pair of claw portions. A bottom surface of the main portion is provided with a part protruding in the axial direction.
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公开(公告)号：US20240077109A1
公开(公告)日：2024-03-07
申请号：US18272695
申请日：2022-01-17
申请人： NSK LTD.
CPC分类号： F16C33/3887 , F16C19/06
摘要： An outer diameter of a claw portion is smaller than an outer diameter of a main portion, a radial width of the claw portion is ½ or less of a radial width of the main portion, an axial width from an upper surface of a connection portion of a pillar portion to a bottom surface of the main portion is ½ or less of an axial width of a crown type cage for a ball bearing, and in the main portion, an opening portion is provided between adjacent pockets.
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