Rolling bearing comprising three concentric rings

    公开(公告)号:US11035405B2

    公开(公告)日:2021-06-15

    申请号:US16792653

    申请日:2020-02-17

    Inventor: Bruno Capoldi

    Abstract: A rolling bearing including an inner ring, an outer ring and a middle ring, the rings being concentrically arranged around a central axis so that the middle ring is arranged radially between the inner ring and the outer ring, at least one row of rolling elements interposed between the inner ring and the middle ring, at least one row of rolling elements interposed between the middle ring and the outer ring. The inner ring provides a radially inner circumferential portion with a gear toothing and the outer ring having a radially outer circumferential portion with a gear toothing.

    Bicycle pedal
    3.
    发明授权

    公开(公告)号:US10358184B2

    公开(公告)日:2019-07-23

    申请号:US15662294

    申请日:2017-07-28

    Applicant: SHIMANO INC.

    Abstract: A bicycle pedal comprises a pedal axle, a pedal body, and a cantilever bearing structure. The cantilever bearing structure is rotatably coupling the pedal body to the pedal axle about a rotational axis. The cantilever bearing structure comprises a first bearing and a second bearing. The first bearing has at least two rows. The first thrust load ratio is larger than the first radial load ratio. The second bearing has at least one row. The second bearing has a second radial load ratio and a second thrust load ratio. The second radial load ratio is larger than the second thrust load ratio.

    VARIABLE PITCH BLADE PIVOT FOR A TURBINE ENGINE FAN HUB

    公开(公告)号:US20190010957A1

    公开(公告)日:2019-01-10

    申请号:US16067981

    申请日:2017-01-04

    Abstract: A pivot for an adjustable-pitch blade for a turbine engine fan hub, the pivot including a stud having coupling device for transmitting a twisting torque and an outside thread, a force-decoupling part positioned around the stud, provided with an outside thread, pressing transversely against the stud at its radially outer end, an outer rolling bearing having an inside ring mounted to press transversely against the force-decoupling part, an inner rolling bearing assembled around the force-decoupling part and held thereby, a pitch transmission ring provided with a coupling device co-operating, with the coupling device of the stud, a first clamping nut screwed onto the outside thread of the force-decoupling part in order to clamp the outer and inner rolling bearings around the fan hub, and a second clamping nut screwed onto the outside thread of the stud in order to provide clamping between the stud, the force-decoupling part, and the pitch transmission ring.

    Rolling bearing with spherical separators
    6.
    发明授权
    Rolling bearing with spherical separators 失效
    滚动轴承带球形分离器

    公开(公告)号:US08425121B2

    公开(公告)日:2013-04-23

    申请号:US12736646

    申请日:2009-04-29

    Abstract: This ball (2) rolling bearing (1) comprises an outer ring (7) and an inner ring (8) between which the balls (2) roll around an axis of rolling (X1), spherical separators (3) for the balls (2), and a raceway (14) of revolution about the axis of rolling (X1) and along which the said spherical separators (3) roll. The raceway is a channel section (14) formed in an element (13; 23) secured to or forming part of one of the said rings (7; 8) and having a substantially semi-cyclic cross section of a diameter suited to that of the said spherical separators (3) so as to accommodate the said separators resting in positions in which they are retained laterally and free of contact with the other of the said rings (8; 7). A rolling bearing such as this is particularly well suited to use without lubrication, particularly in the space industry.

    Abstract translation: 该球(2)滚动轴承(1)包括外圈(7)和内圈(8),滚珠(2)围绕滚动轴线(X1)滚动,滚珠轴承的球形分离器(3) 以及绕轧制轴线(X1)旋转的滚道(14),并且所述球形分离器(3)沿着该滚道滚动。 所述滚道是形成在固定到所述环(7; 8)之一或形成所述环(7; 8)中的一个的元件(13; 23)中的通道部分(14),并且具有基本上半圆形的直径, 所述球形分离器(3)以便将所述分离器放置在横向保持的位置处,并且与所述环(8; 7)中的另一个不接触。 诸如此类的滚动轴承特别适用于没有润滑的情况下使用,特别是在空间工业中。

    BEARING APPARATUS AND INFORMATION RECORDING/REPRODUCTION APPARATUS
    7.
    发明申请
    BEARING APPARATUS AND INFORMATION RECORDING/REPRODUCTION APPARATUS 有权
    轴承装置和信息记录/再现装置

    公开(公告)号:US20130057984A1

    公开(公告)日:2013-03-07

    申请号:US13598825

    申请日:2012-08-30

    CPC classification number: F16C19/56 F16C2370/12 G11B5/4813 G11B5/5569

    Abstract: An inner race of a first rolling bearing is fixed to a shaft, and an outer race thereof is fixed to an inner race of a second rolling bearing. In the first bearing, the outer race and a rolling element contact each other on the side of a center of the rolling element closer to one end side in an axial direction, and the inner race and the rolling element contact each other on the side of the center of the rolling element closer to the other end side in the axial direction. In the second bearing, an outer race and a rolling element contact each other on the side of a center of the rolling element closer to the one end side, and the inner race and the rolling element contact each other on the side of the center of the rolling element closer to the other end side.

    Abstract translation: 第一滚动轴承的内圈固定在轴上,其外圈固定在第二滚动轴承的内圈上。 在第一轴承中,外圈和滚动元件在滚动元件的中心侧沿轴向更靠近一端侧彼此接触,并且内圈和滚动元件在 滚动元件的中心沿轴向更靠近另一端侧。 在第二轴承中,外圈和滚动元件在滚动元件的中心侧更靠近一端侧彼此接触,并且内圈和滚动元件在中心的一侧相互接触 滚动元件更靠近另一端侧。

    Double-row angular contact ball bearing
    8.
    发明授权
    Double-row angular contact ball bearing 有权
    双列角接触球轴承

    公开(公告)号:US06957919B2

    公开(公告)日:2005-10-25

    申请号:US10431835

    申请日:2003-05-08

    Abstract: In a double-row angular contact ball bearing comprising an outer ring (1), an inner ring (2) and two ball crown rings (3, 4) formed by bearing balls (3.1, 4.1) guided in two separate cages (3.2, 4.2) and supported on shoulders (1.1, 1.2, 2.1, 2.2) of said inner and outer rings, ball raceways of the bearing having different diameters, the cages (3.2, 4.2) are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls (3.1, 4.1), and one of the cages (3.2, 4.2) comprises on an axially inward oriented end, a plurality of spacers (3.5, 4.5) uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs (3.4, 4.4) uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove (2.3, 1.3) of one of the inner (2) and the outer ring (1), and the spacers (3.5, 4.5) of the one cage (3.2, 4.2) prevent an axial displacement of the other cage (4.2, 3.2).

    Abstract translation: 在包括外环(1)的双列角接触球轴承中,由在两个分开的保持架(3.2,312)中引导的轴承滚珠(3.1,4.1)形成的两个内圈(2)和两个球冠环(3,4) 4.2)并且支撑在所述内圈和外圈的肩部(1.1,1.2,2.1,2.2)上,所述轴承的滚珠滚道具有不同的直径,所述保持架(3.2,4.2)由塑料制成,并被构造为窗型笼,包括 用于接收轴承滚珠(3.1,4.1)和其中一个保持架(3.2,4.2)的凹槽在轴向向内定向的端部上包括沿圆周方向彼此均匀间隔开的多个间隔件(3.5,4.5),所述间隔件 保持架还包括在圆周方向上彼此均匀间隔开的多个保持凸耳(3.4,4.4),该保持凸耳与内部(2)和外圈(1)中的一个的对应凹槽(2.3,1.3)接合, 并且一个保持架(3.2,4.2)的间隔件(3.5,4.5)防止轴向位移 另一个笼子(4.2,3.2)。

    Bearing assembly having compact thickness, spindle motor and actuator
using the same bearing assembly, and magnetic disk drive
    10.
    发明授权
    Bearing assembly having compact thickness, spindle motor and actuator using the same bearing assembly, and magnetic disk drive 失效
    具有紧凑厚度的轴承组件,使用相同轴承组件的主轴电机和致动器以及磁盘驱动器

    公开(公告)号:US6115213A

    公开(公告)日:2000-09-05

    申请号:US913343

    申请日:1997-09-11

    Abstract: A magnetic disk drive which is to be used for recording and/or reproducing information, and a bearing assembly for use in the same magnetic disk drive. The bearing assembly includes two bearings of different diameters, of which a small-diameter bearing is arranged within an inner periphery of a large-diameter bearing. The two bearings are joined by means of bearing coupling members for connecting respectively inner rings and outer rings of the bearings. The small-diameter bearing is arranged within the inner periphery of the large-diameter bearing, and therefore a height of the bearing assembly can be made thinner to about one and a half times a height of a single bearing. It is therefore possible to make the magnetic disk drive smaller and thinner by employing this bearing assembly.

    Abstract translation: PCT No.PCT / JP95 / 00480 Sec。 371日期:1997年9月11日 102(e)1997年9月11日PCT PCT 1995年3月17日PCT公布。 第WO96 / 29521号公报 日期1996年9月26日用于记录和/或再现信息的磁盘驱动器,以及用于同一磁盘驱动器的轴承组件。 轴承组件包括两个不同直径的轴承,其中小直径轴承布置在大直径轴承的内周边内。 两个轴承通过用于连接轴承的内圈和外圈的轴承联接构件连接。 小直径轴承布置在大直径轴承的内周内,因此轴承组件的高度可以变得更薄到单个轴承的高度的大约1.5倍。 因此,可以通过使用该轴承组件来使磁盘驱动器变得越来越小。

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