Planar high-density ball bearing, manufacturing method thereof and nutation reducer

    公开(公告)号:US11873862B2

    公开(公告)日:2024-01-16

    申请号:US18218608

    申请日:2023-07-06

    申请人: Hong Jiang

    发明人: Xiaochun Wang

    IPC分类号: F16C33/40 F16C19/10

    CPC分类号: F16C33/40 F16C19/10

    摘要: A planar high-density ball bearing comprises a cage and balls; the cage is provided with multiple groups of ball holes for arranging the balls; the ball holes in each group are distributed in the circumferential direction of the cage in an ellipse; the centers of the ellipses in each of which a group of ball holes is distributed coincide with each other, the major axes of the ellipses lie in a common line. The ball holes in adjacent groups are arranged to be staggered in relative to each other in the circumferential direction of the cage, and the balls in the same group of the ball holes are distributed in an ellipse. A method for manufacturing the planar high-density ball bearing, nutation reducer are provided.

    ROLLING BEARING WITH GUIDING FLANGE FOR CAGE

    公开(公告)号:US20220243765A1

    公开(公告)日:2022-08-04

    申请号:US17577431

    申请日:2022-01-18

    申请人: Aktiebolaget SKF

    IPC分类号: F16C33/40 F16C19/54

    摘要: The bearing includes a first ring, a second ring, at least one row of radial and axial rolling elements arranged between axial and radial raceways provided on the rings. The second ring has a protruding nose engaged into an annular groove of the first ring and provided with the axial raceway and with the radial raceway of the second ring. The bearing further provides at least one cage for maintaining the row of axial rolling elements, at least one flange for guiding and maintaining the cage in radial direction, and a plurality of fixing screws to secure the flange to the first ring. The flange axially abuts against a flat surface of the first ring. The fixing screws extend axially through the flat surface of the first ring.

    Multi-ball thrust bearing arrangement

    公开(公告)号:US11378121B2

    公开(公告)日:2022-07-05

    申请号:US17117620

    申请日:2020-12-10

    IPC分类号: F16C19/10 F16C33/38 F16C33/40

    摘要: A thrust bearing has an outer race and an inner race arranged for rotation relative to the outer race about an axis of rotation. Multiple rolling elements are positioned between the inner and outer races. A cage is positioned between the inner and outer races and configured to engage with the rolling elements to align the rolling elements into multiple rows, with the rows circumferentially spaced apart from one another.

    MEDICAL DEVICE
    17.
    发明申请
    MEDICAL DEVICE 审中-公开

    公开(公告)号:US20190015112A1

    公开(公告)日:2019-01-17

    申请号:US16135162

    申请日:2018-09-19

    申请人: Aesculap AG

    发明人: Martin Machill

    摘要: The invention relates to a medical device with a machine element mounted so as to be linearly movable and at least one linear guide, comprising at least one ball bearing and defining a longitudinal axis, for guiding a linear movement of the machine element parallel to the longitudinal axis, said at least one ball bearing comprising a plurality of balls which are movably held in corresponding ball holders and which guide the machine element, wherein the plurality of ball holders are constructed in the form of elongated holes.

    LOW FRICTION MULTI STAGE THRUST BEARING
    19.
    发明申请
    LOW FRICTION MULTI STAGE THRUST BEARING 审中-公开
    低摩擦多级轴承轴承

    公开(公告)号:US20160010688A1

    公开(公告)日:2016-01-14

    申请号:US14735433

    申请日:2015-06-10

    发明人: John Tate

    摘要: A thrust bearing having a circular cage with rolling elements disposed in at least some of pockets formed in the cage, upper and lower raceways having inward-facing surfaces disposed adjacent to the cage so that a first plurality of rolling elements is in rolling contact with the upper and lower raceways when the thrust bearing is in a first load condition and a second plurality of rolling elements is in rolling contact with the upper and lower raceways when the thrust bearing is in a second load condition.

    摘要翻译: 一种具有圆形保持架的止推轴承,滚动元件设置在形成在保持架中的至少一些凹穴中,上和下滚道具有邻近保持架设置的向内表面,使得第一多个滚动元件与 当推力轴承处于第一负载状态时,上部和下部滚道与第二多个滚动元件在推力轴承处于第二负载状态时与上部和下部滚道滚动接触。