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116 条记录 (耗时 0.022 秒)

    Linear motion guide device
    61.
    发明授权
    Linear motion guide device 有权

    公开(公告)号：US10036421B2

    公开(公告)日：2018-07-31

    申请号：US15322750

    申请日：2015-06-25

    申请人： NSK Ltd.

    发明人： Jun Matsumoto

    IPC分类号： F16C29/06 ,  F16C33/58

    CPC分类号： F16C29/0604 ,  F16C29/0642 ,  F16C29/0647 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/76

    摘要： There is provided a linear motion guide device that is reduced in a contact surface pressure between a ball and a raceway groove so that an occurrence of an edge load can hardly occur, even when any of a pressing load, a tensile load, and a lateral load is applied to a slider. Upper flanks and lower flanks included in raceway grooves of a guide rail and a slider each include: a main arc portion having an arc-shaped section and placed generally in a center of the flank in a width direction; a groove shoulder side sub-arc portion having an arc-shaped section and formed continuously from a groove shoulder side of the main arc portion; and a groove bottom side sub-arc portion having an arc sectional shape and formed continuously from a groove bottom side of the main arc portion. Further, a curvature radius of the groove shoulder side sub-arc portion is different from a curvature radius of the groove bottom side sub-arc portion.

    Linear Motion Guide Device
    63.
    发明申请
    Linear Motion Guide Device 审中-公开

    公开(公告)号：US20170159711A1

    公开(公告)日：2017-06-08

    申请号：US15322750

    申请日：2015-06-25

    申请人： NSK Ltd.

    发明人： Jun MATSUMOTO

    IPC分类号： F16C29/06 ,  F16C33/58

    CPC分类号： F16C29/0604 ,  F16C29/0642 ,  F16C29/0647 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/76

    摘要： There is provided a linear motion guide device that is reduced in a contact surface pressure between a ball and a raceway groove so that an occurrence of an edge load can hardly occur, even when any of a pressing load, a tensile load, and a lateral load is applied to a slider. Upper flanks and lower flanks included in raceway grooves of a guide rail and a slider each include: a main arc portion having an arc-shaped section and placed generally in a center of the flank in a width direction; a groove shoulder side sub-arc portion having an arc-shaped section and formed continuously from a groove shoulder side of the main arc portion; and a groove bottom side sub-arc portion having an arc sectional shape and formed continuously from a groove bottom side of the main arc portion. Further, a curvature radius of the groove shoulder side sub-arc portion is different from a curvature radius of the groove bottom side sub-arc portion.

    Wheel hub assembly with two rows of rolling elements
    64.
    发明授权
    Wheel hub assembly with two rows of rolling elements 有权
    具有两排滚动元件的轮毂组件

    公开(公告)号：US08678663B2

    公开(公告)日：2014-03-25

    申请号：US13090635

    申请日：2011-04-20

    申请人： Luca Ciulla

    发明人： Luca Ciulla

    IPC分类号： F16C33/58

    CPC分类号： B60B27/0005 ,  B60B27/0026 ,  B60B2380/12 ,  B60B2380/73 ,  B60B2380/76 ,  B60B2900/1212 ,  F16C19/186 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/76 ,  F16C2240/80 ,  F16C2326/02

    摘要： A wheel hub assembly with two rows of rolling elements has a central axis of rotation and inner raceway and outer raceways for each row of elements, the associated inner and outer raceways being axially displaced in accordance with a respective angle of contact and along a respective load line such that the assembly is capable of accommodating combined loading. The raceways of each row of rolling elements have osculation ratios which are defined by the ratio between the radius of curvature of the raceways and the outside diameters of the rolling elements of the associated row of rolling elements. The angle of contact and the osculation ratios of a first one of the two rows of the rolling elements are different than the angle of contact and osculation ratios of a second one of the two rows of the rolling elements.

    摘要翻译： 具有两排滚动元件的轮毂组件具有用于每排元件的中心旋转轴线和内滚道和外滚道，相关联的内滚道和外滚道根据相应的接触角度和相应的载荷而轴向移动 使得组件能够容纳组合的负载。 每排滚动元件的滚道具有由滚道的曲率半径与相关行滚动元件的滚动元件的外径之间的比率定义的密度比。 滚动元件的两列中的第一列的接触角和切割比与两列滚动元件的第二列的接触角和密封比不同。

    Rotation Support Device for Pinion Shaft
    66.
    发明申请
    Rotation Support Device for Pinion Shaft 有权
    小齿轮转动支撑装置

    公开(公告)号：US20130182986A1

    公开(公告)日：2013-07-18

    申请号：US13777380

    申请日：2013-02-26

    申请人： NSK Ltd.

    发明人： Takanori TANAKA ,  Tomoharu SAITO ,  Yasushi TANOUE

    IPC分类号： F16C19/14

    CPC分类号： F16C19/14 ,  F16C19/163 ,  F16C19/182 ,  F16C19/505 ,  F16C19/548 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/46 ,  F16C2240/76 ,  F16C2361/61 ,  F16H48/42 ,  F16H2048/423

    摘要： A rotation support device for a pinion shaft is configured such that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway and the diameter Bd of the balls (Ro/Bd) is regulated within the range 0.52

    摘要翻译： 用于小齿轮轴的旋转支撑装置被构造成使得能够充分地保持滚动轴承在与小齿轮侧相反的一侧的轴向刚性的同时，能够充分地降低运转和启动时的动态转矩 开始运行时的扭矩。 与在小齿轮侧相反的一侧使用单列角接触球轴承作为滚动轴承，外滚道的曲率半径Ro与滚珠的直径Bd（Ro / Bd）之比为 在0.52

    Electric power steering system
    67.
    发明授权
    Electric power steering system 有权
    电动助力转向系统

    公开(公告)号：US08459402B2

    公开(公告)日：2013-06-11

    申请号：US13283916

    申请日：2011-10-28

    申请人： Jun Hamakita ,  Hirotsugu Kusano

    发明人： Jun Hamakita ,  Hirotsugu Kusano

    IPC分类号： B62D5/04

    CPC分类号： B62D5/0409 ,  F16C33/585 ,  F16C2240/76 ,  F16H55/24 ,  F16H57/022 ,  F16H57/039 ,  F16H2057/0213

    摘要： A curvature radius of a raceway groove of an inner ring of a first bearing supporting a first end portion of a worm shaft and a curvature radius of a raceway groove of an outer ring of the first bearing are larger than 50% of a diameter of each rolling element of the first bearing, whereby the worm shaft is pivotable about the first end portion. Internal clearances in the first bearing are eliminated because the first bearing is pressed in a radial direction by a pressing member. When the worm shaft vibrates relative to a housing in an axial direction, paired second elastic members and damp and absorb the vibration.

    摘要翻译： 支撑蜗杆的第一端部的第一轴承的内圈的轨道槽的曲率半径和第一轴承的外圈的轨道槽的曲率半径大于每个的直径的50％ 第一轴承的滚动元件，由此蜗杆轴可绕第一端部转动。 第一轴承的内部间隙被消除，因为第一轴承是通过按压构件在径向方向上被按压的。 当蜗杆轴相对于壳体沿轴向振动时，成对的第二弹性部件被吸湿并吸收振动。