Magnetic field communication system and method

    公开(公告)号:US10739203B2

    公开(公告)日:2020-08-11

    申请号:US15921686

    申请日:2018-03-15

    摘要: A magnetic field communication system and method is devised for communicating a signal indicating an internal state of a bearing through a magnetic field and for converting the signal communicating through the magnetic field into power to analyze the internal state of the bearing. The system includes a sensor unit disposed inside a bearing and an adapter disposed outside the bearing. The sensor unit includes a sensor to detect a temperature of oil inside the bearing and to output a sensing signal indicative of the detected oil temperature, and an interface to convert the outputted sensing signal into a magnetic field signal and to transmit the magnetic field signal outside the bearing. The adapter receives the transmitted magnetic field signal from the sensor unit and analyzes the received magnetic field signal in order to determine a status of the oil temperature.

    Method for manufacturing ring-shaped member and manufacturing apparatus for same

    公开(公告)号:US10583475B2

    公开(公告)日:2020-03-10

    申请号:US15505689

    申请日:2015-08-20

    申请人: NSK LTD.

    IPC分类号: B21H1/12 B21B5/00 F16C33/00

    摘要: Construction is achieved that, together with preventing the occurrence of damage to a mandrel, is able to improve precision of the shape of a ring-shaped member after processing. A mandrel includes a pair of support shaft sections that are provided so as to be separated in the axial direction and so as to be concentric with each other, and a rolling shaft section that is concentrically provided in the axial direction between the pair of support shaft sections. One of the support shaft sections is provided in a state in which displacement in the axial direction with respect to the rolling shaft section is regulated. The other support shaft section is provided in a state in which displacement in a direction going away from the rolling shaft section is possible when a pressing force is applied in that direction.

    Axial-radial rolling bearing
    4.
    发明授权

    公开(公告)号:US10465749B2

    公开(公告)日:2019-11-05

    申请号:US15221113

    申请日:2016-07-27

    摘要: Disclosed is an axial-radial rolling bearing having an inner ring, an outer ring disposed around the inner ring, and a plurality of rolling bodies in the form of rollers arranged into at least one row disposed between and separating the inner ring and the outer ring. The rolling bearing further includes at least one rolling bearing cage disposed around at least part of the rollers and configured to maintain a predetermined spacing of each of the rollers from each adjacent roller in the at least one row, wherein the rolling bearing cage comprises a plastic coated main body that is at least one of ring-shaped or segmented. The main body has openings for receiving the respective rolling elements.

    Bearing apparatuses and motor assemblies using same
    8.
    发明授权
    Bearing apparatuses and motor assemblies using same 有权
    轴承装置和使用其的电动机组件

    公开(公告)号:US09353788B1

    公开(公告)日:2016-05-31

    申请号:US13480932

    申请日:2012-05-25

    IPC分类号: F16C33/00 F16C17/02 F16C33/12

    摘要: In an embodiment, a bearing apparatus includes a first bearing assembly including a plurality of first superhard bearing elements. The bearing apparatus further includes a second bearing assembly including a plurality of second superhard bearing elements generally opposing and bearing against the plurality of first superhard bearing elements of the first bearing assembly during operation. A support ring carries the plurality of second superhard bearing elements that are distributed circumferentially about an axis. More than one of the plurality of second superhard bearing elements includes an outer convex peripheral surface that is substantially cylindrical and exhibits a convex curvature, and a cutout at least partially defined by a concave peripheral surface that is substantially cylindrical and curved to generally correspond to the convex curvature of the outer convex peripheral surface. The cutout receives an adjacent one of the plurality of superhard bearing elements.

    摘要翻译: 在一个实施例中,轴承装置包括包括多个第一超硬轴承元件的第一轴承组件。 所述轴承装置还包括第二轴承组件,所述第二轴承组件包括多个第二超硬轴承元件,所述多个第二超硬轴承元件在操作期间大致相对并且抵靠所述第一轴承组件的多个第一超硬轴承元件。 支撑环承载围绕轴线周向分布的多个第二超硬轴承元件。 多个第二超硬轴承元件中的多于一个包括基本上圆柱形且呈凸曲率的外凸形外周表面,以及至少部分地由凹形周边表面限定的切口,该凹形周边表面基本上为圆柱形并且弯曲成大致对应于 外凸面的凸曲率。 切口容纳多个超硬轴承元件中的相邻的一个。

    Anti-friction coating
    10.
    发明授权
    Anti-friction coating 有权
    防摩擦涂层

    公开(公告)号:US09074627B2

    公开(公告)日:2015-07-07

    申请号:US12928358

    申请日:2010-12-09

    申请人: Jakob Zidar

    发明人: Jakob Zidar

    摘要: The invention relates to an anti-friction coating (4) for a multi-layered friction bearing (1) made from a tin-based alloy which, in addition to tin, contains at least one element from the group comprising antimony and copper as the main alloying element, optionally lead and/or bismuth, and unavoidable impurities originating from the elements during the manufacturing process, and the proportion of antimony is at most 20% by weight, the proportion of copper is at most 10% by weight and the total proportion of lead and bismuth is at most 1.5% by weight and the total proportion of copper and antimony is between 2% by weight and 22% by weight, and tin is present in the form of inter-metallic phases and as a tin phase with beta-tin grains, and the beta-tin grains in the tin-based alloy have at least one preferred orientation, and an orientation index M{hkl} based on the formula M ⁢ { hkl } = I ⁢ { hkl } ⁢ ∑ I 0 ⁢ { hkl } I 0 ⁢ { hkl } ⁢ ∑ I [ hkl } of at least one set of network levels M{hkl} has or exceeds the value 3.0, and I{hki} stands for the X-ray diffraction intensities for the {hkl} planes of the anti-friction coating and I0{hkl} stands for the X-ray diffraction intensities of the totally non-oriented tin powder sample.

    摘要翻译: 本发明涉及一种用于由锡基合金制成的多层摩擦轴承(1)的抗摩擦涂层(4),该锡基合金除锡之外还含有至少一种元素,所述元素包括锑和铜作为 主要合金元素,任选的铅和/或铋,以及在制造过程中源自元素的不可避免的杂质,锑的比例为至多20重量%,铜的比例为至多10重量%,总计 铅和铋的比例至多为1.5重量%,铜和锑的总比例在2重量%至22重量%之间,锡以金属相的形式存在,并以锡相的形式存在, 锡 - 锡颗粒和锡 - 锡合金中的β-锡颗粒具有至少一个优选取向,并且基于公式M {hkl} = I {hkl}ΣI的取向指数M {hkl} 0 {hkl} I 0 {hkl}ΣI [hkl}至少一组网络 rk级别M {hkl}具有或超过值3.0,I {hki}表示抗摩擦涂层的{hkl}面的X射线衍射强度,I 0 {hkl}表示X射线衍射 完全无取向的锡粉样品的强度。