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176 条记录 (耗时 0.02 秒)

    Tapered roller bearing
    1.
    发明授权
    Tapered roller bearing 有权

    公开(公告)号：US11460071B2

    公开(公告)日：2022-10-04

    申请号：US17295534

    申请日：2019-12-04

    申请人： NTN Corporation

    发明人： Yasuyoshi Hayashi ,  Takashi Wakisaka ,  Sahoko Manda

    IPC分类号： F16C19/34 ,  F16C33/58 ,  F16C19/36

    摘要： An object of the present invention to provide a tapered roller bearing in which a flange portion is formed at a large-diameter end of an outer ring track surface of an outer ring, capable of providing high moment stiffness and long life without extremely decreasing its pure axial load capacity. The tapered roller bearing comprising: an outer ring 12 having an outer ring track surface 12a on its inner circumferential surface; an inner ring 13 having an inner ring track surface 13a on its outer circumferential surface; a plurality of tapered rollers 14 rotatably disposed between the outer ring track surface 12a and the inner ring track surface 13a; and a retainer 15 having a plurality of pockets for retaining the plurality of tapered rollers 14 at a predetermined interval; the outer ring track surface 12a of the outer ring 12 having a small-diameter end and a large-diameter end, the inner ring track surface 13a of the inner ring 13 having a small-diameter end and a large-diameter end, and, of these four ends, a flange portion 12b that protrudes radially inwardly is formed at the large-diameter end of the outer ring track surface 12a of the outer ring 12; wherein the tapered roller bearing has a contact angle greater than 35° and a roller angle not greater than 3.5°.

    Electric actuator
    2.
    发明授权
    Electric actuator 有权

    公开(公告)号：US11434953B2

    公开(公告)日：2022-09-06

    申请号：US16762980

    申请日：2018-11-22

    申请人： NTN Corporation

    发明人： Akio Kato ,  Yuuki Naitou ,  Youhei Yamashita

    IPC分类号： F16C17/02 ,  F16C19/34 ,  F16C33/20 ,  F16C33/58 ,  F16H25/20 ,  H02K7/06 ,  H02K7/116

    摘要： An electric actuator 1 includes: an electric motor 10; a first motion conversion mechanism 20 that has a screw shaft 21 rotatably driven by the electric motor 10 and a nut 22 screwed with the screw shaft 21, and converts a rotary motion of the screw shaft 21 into a linear motion of the nut 22; and a housing 40 accommodating the electric motor 10 and the motion conversion mechanism 20. The housing 40 includes a pair of housing split bodies 41 and 42 split by a plane parallel to an axial direction of the screw shaft 21.

    Combined load rolling bearing
    7.
    发明授权
    Combined load rolling bearing 有权
    组合负载滚动轴承

    公开(公告)号：US09062710B2

    公开(公告)日：2015-06-23

    申请号：US14169904

    申请日：2014-01-31

    申请人： Brian Lee ,  James Kevin Brown

    发明人： Brian Lee ,  James Kevin Brown

    IPC分类号： F16C19/34 ,  F16C19/54 ,  F16C33/46 ,  F16C19/38 ,  F16C19/46 ,  F16C33/48 ,  F16C33/58

    CPC分类号： G01R31/3177 ,  F16C19/381 ,  F16C19/463 ,  F16C33/4635 ,  F16C33/48 ,  F16C33/585

    摘要： A combined load rolling bearing including a roller assembly with a first cage including a plurality of radial cylindrical rollers and a plurality of axial cylindrical rollers is provided. The radial cylindrical rollers are supported so that they can roll on a radially outer race of a first bearing ring and a radially inner race of a second bearing ring. The axial cylindrical rollers are supported so that they can roll on a first axial race of the first bearing ring and an intermediate axial ring. A needle roller assembly is supported between the intermediate axial ring and a second axial race of the second bearing ring. The needle roller assembly includes a second cage with a plurality of needle rollers and the needle roller assembly rotates at a speed differential between the radial cylindrical rollers and the axial cylindrical rollers.

    摘要翻译： 提供一种组合式负载滚动轴承，其包括具有包括多个径向圆柱滚子和多个轴向圆柱滚子的第一保持架的滚子组件。 径向圆柱滚子被支撑成使得它们能够在第一轴承环的径向外座圈和第二轴承环的径向内座圈上滚动。 轴向圆柱滚子被支撑成使得它们可以在第一轴承环的第一轴向座圈和中间轴向环上滚动。 滚针组件支撑在中间轴向环与第二轴承环的第二轴向座圈之间。 针辊组件包括具有多个针辊的第二保持架，并且针辊组件以径向圆柱滚子和轴向圆柱滚子之间的速度差异旋转。

    Ball roller rolling member
    8.
    发明申请
    Ball roller rolling member 失效
    滚珠滚动滚子

    公开(公告)号：US20050238272A1

    公开(公告)日：2005-10-27

    申请号：US11003826

    申请日：2004-12-03

    申请人： Hiroshi Teramachi

    发明人： Hiroshi Teramachi

    IPC分类号： F16C33/32 ,  F16C19/34 ,  F16C29/04 ,  F16C29/06 ,  F16C33/36 ,  F16C21/00

    CPC分类号： F16C19/362 ,  F16C29/06 ,  F16C33/36 ,  F16C2240/40

    摘要： The present invention provides a ball roller rolling member which can take crossing arrangement, conveyance including alignment and separation can be easily automated, lateral both sides of a rolling spherical portion can be easily discriminated and the rolling spherical portion thereof can be precisely ground. Such ball roller rolling member comprises a rolling spherical portion having a circular-arc outer periphery and end spherical portions provided on both sides of the rolling spherical portion so as to be spherically swelled outward, respectively, the rolling spherical portion having a radius of the circular-arc portion larger than a radius of curvature of each of the end spherical portions. The rolling spherical portion has the maximum diameter longer than a distance between the end spherical portions, the ball roller rolling members are arranged between a pair of track grooves having track surfaces perpendicular to each other so that rotational axes of the adjacent ball roller rolling members are alternately perpendicular to each other, and one of the end spherical portions is formed with a spherical recessed portion having a radius of curvature equal to that of the one of the end spherical portions.

    摘要翻译： 本发明提供一种可以交叉排列的滚珠滚动滚动体，能够容易地进行自动对准分离的输送，能够容易地判断滚动球面部的两侧，能够精确地研磨滚动球面部。 这种滚珠滚动体包括具有圆弧外周的滚动球形部分和设置在滚动球形部分两侧的端部球形部分，以分别向外滚动膨胀，滚动球形部分具有圆形半径 -arc部分大于每个端部球形部分的曲率半径。 滚动球形部分的最大直径长于端部球形部分之间的距离，滚珠滚动部件布置在具有彼此垂直的轨道表面的一对轨道槽之间，使得相邻的滚珠滚动体的旋转轴线为 交替地彼此垂直，并且其中一个末端球形部分形成有具有与端球形部分之一相等的曲率半径的球形凹部。

    Roller bearing
    9.
    发明申请
    Roller bearing 失效
    滚子轴承

    公开(公告)号：US20050058383A1

    公开(公告)日：2005-03-17

    申请号：US10902377

    申请日：2004-07-30

    申请人： Gunter Neder ,  Rut Heemskerk ,  Bruno Schemmel ,  Jurgen Reichert ,  Robert Grull ,  Burkard Beck ,  Alfred Schwappach ,  Stefan Wagner

    发明人： Gunter Neder ,  Rut Heemskerk ,  Bruno Schemmel ,  Jurgen Reichert ,  Robert Grull ,  Burkard Beck ,  Alfred Schwappach ,  Stefan Wagner

    IPC分类号： F16C33/46 ,  F16C19/34 ,  F16C19/36 ,  F16C33/51 ,  F16C33/56 ,  F16C19/30

    CPC分类号： F16C19/364 ,  F16C33/513 ,  F16C2300/14

    摘要： A roller bearing (e.g., a cross taper roller bearing) includes an outer ring, an inner ring and rolling elements (e.g., taper rollers) located between the inner and outer rings. The rolling elements are kept at a distance by a cage formed from a number of individual cage segments. Each cage segment has two opposing guide sections for one of the rolling elements to at least partially encompass the rolling element on both sides. In addition, for the rolling elements bordering the one rolling element, the cage segment has guide sections which, in interaction with a corresponding guide section of an adjacent cage segment, at least partially encompass the bordering rolling elements.

    摘要翻译： 滚子轴承（例如，十字圆锥滚子轴承）包括位于内圈和外圈之间的外圈，内圈和滚动元件（例如圆锥滚子）。 通过由多个单独的笼形段形成的保持架将滚动元件保持一定距离。 每个保持架部分具有用于其中一个滚动元件的两个相对的引导部分，以至少部分地包围两侧的滚动元件。 此外，对于与一个滚动元件相邻的滚动元件，保持架部分具有引导部分，其与相邻的笼形部分的对应的引导部分相互作用，至少部分地包围边界滚动元件。