GREASE
    31.
    发明申请
    GREASE 有权
    润滑脂

    公开(公告)号:US20100035779A1

    公开(公告)日:2010-02-11

    申请号:US12444472

    申请日:2007-10-05

    IPC分类号: C10M105/36 C07C69/34

    摘要: A grease which comprises a base oil containing at least 50% by mass of a diester compound having a total carbon number of 28 to 40 and represented by the general formula (I): R1OOC—(R2)n—COOR3   (I) wherein R1 and R3 each independently represent a C4 to C20 monovalent aliphatic hydrocarbon group, R2 represents a C1 to C20 divalent hydrocarbon group and n is 0 or 1. The grease is excellent in both low-temperature performance and high-temperature performance and has low oil separation tendency even under high centrifugal force (acceleration). In particular, when the grease is used in a rotational transmission device having a built-in one-way clutch, the grease can provide satisfactory clutch engagement property (intermeshing ability) at low temperatures and a prolonged bearing life at high temperatures and is less apt to cause oil separation under high centrifugal force.

    摘要翻译: 含有至少50质量%的总碳数为28〜40,由通式(I)表示的二酯化合物的基油的润滑脂:R1OOC-(R2)n-COOR3(I)其中R1 R 3各自独立地表示C 4〜C 20一价脂肪族烃基,R 2表示C 1〜C 20二价烃基,n为0或1.该润滑脂具有优异的低温性能和高温性能,油分离率低 趋势即使在高离心力(加速度)下。 特别是,在具有内置单向离合器的旋转传动装置中使用润滑脂时,润滑脂能够在低温下提供令人满意的离合器接合性(相互啮合能力),并且在高温下具有延长的轴承寿命并且不太适合 在高离心力下引起油分离。

    Rolling bearing
    34.
    发明授权
    Rolling bearing 有权
    滚动轴承

    公开(公告)号:US06727207B2

    公开(公告)日:2004-04-27

    申请号:US10033918

    申请日:2002-01-03

    IPC分类号: C10M16906

    摘要: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.

    摘要翻译: 本发明提供一种适用于高温,高速,高负载和高振动条件下使用的滚动轴承,具有良好的防锈性能和优异的剥离寿命,而不会对人体造成危害。 描述了一种滚动轴承,其包括内圈,外圈和滚动元件,其中包含作为主要组分的基础油,增稠剂和至少一种由环烷酸酯制成的防锈添加剂的润滑脂组合物 或琥珀酸衍生物,其填充在由至少内圈,外圈和滚动体形成的轴承空间中,所述至少一种防锈添加剂的存在量为0.1〜10重量% 基于润滑脂组合物的总量。

    Rolling bearing for hard disk drive
    35.
    发明授权
    Rolling bearing for hard disk drive 失效
    滚动轴承用于硬盘驱动器

    公开(公告)号:US06340244B1

    公开(公告)日:2002-01-22

    申请号:US09090921

    申请日:1998-06-05

    IPC分类号: F16C3366

    摘要: A rolling bearing for an HDD being excellent in the resistance to fretting wear, capable of lowering the torque and relieving the torque change and having a long life while exerting no undesirable effect on various bearing properties. A rolling bearing for hard disk drives wherein a cage 7 supports a plural number of rolling elements 5 located between an inner ring 2 and an outer ring 4 and sealing members 6,6 fixed to the both ends in the axial direction of one of said inner ring 2 and said outer ring 4 are opposite to each other, wherein a lubricating oil has been injected into the bearing space formed between said sealing members 6,6 at the both ends in the axial direction so as to amount to 1 to 50% by volume of the bearing space.

    摘要翻译: 一种用于HDD的滚动轴承,其耐磨损性能优异,能够降低扭矩并减轻扭矩变化并且具有长的使用寿命,同时不会对各种轴承性能产生不良影响。 一种用于硬盘驱动器的滚动轴承,其中保持架7支撑位于内环2和外圈4之间的多个滚动元件5和固定在所述内圈2和外圈4之一的轴向两端的密封构件6,6 环2和所述外环4彼此相对,其中润滑油已经在轴向两端的所述密封构件6,6之间形成的轴承空间中被注入,以使其为1至50% 轴承空间的体积。

    Ferrofluid compositions
    39.
    发明授权
    Ferrofluid compositions 失效
    氟化物组合物

    公开(公告)号:US5085789A

    公开(公告)日:1992-02-04

    申请号:US515353

    申请日:1990-04-30

    CPC分类号: H01F1/44

    摘要: A ferrofluid composition is defined by fine particles of ferromagnetic material, a liquid carrier for dispersing the ferromagnetic material and a surfactant or surfactants acting as a dispersant. The surfactant is required to have such relation to the carrier that the surfactant has, as its hydrophobic group portion, a structure equivalent to the carrier, and the carrier is selected to be either an alkylpolyphenyl ether oil, an alkylnaphthalene oil or both. By virtue of this structural feature, fine ferromagnetic particles are uniformly and stably dispersed throughout the carrier which has low viscosity and is thermally very stable.

    摘要翻译: 铁磁流体组合物由铁磁材料的细颗粒,用于分散铁磁材料的液体载体和用作分散剂的表面活性剂或表面活性剂来限定。 表面活性剂需要与表面活性剂具有与载体相当的结构的载体具有这样的关系,并且载体选择为烷基聚苯基醚油,烷基萘油或二者。 由于这种结构特征,精细的铁磁颗粒均匀且稳定地分散在具有低粘度并且热非常稳定的载体中。