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    Linear motion device
    1.
    发明申请
    Linear motion device 审中-公开
    直线运动装置

    公开(公告)号：US20030221502A1

    公开(公告)日：2003-12-04

    申请号：US10411329

    申请日：2003-04-11

    Applicant: NSK LTD.

    Inventor： Shigeru Okita ,  Hideyuki Uyama ,  Susumu Tanaka ,  Kenichi Iso

    IPC: F16H025/22

    CPC classification number: F16C33/3706 ,  F16C29/06 ,  F16C33/32 ,  F16H25/2238 ,  F16H2025/2242 ,  F16H2025/249 ,  Y10T74/19777

    Abstract: A ball screw (1) as a linear motion device according to the invention has retaining pieces (21) each having two concave surfaces (23) facing adjacent ones of rolling elements (9) respectively. Each of the retaining pieces (21) is disposed between adjacent ones of the rolling elements (9). A carbonitrided layer containing residual austenite of 15-40% by volume is provided in the surface layer of each of the rolling elements (9).

    Abstract translation: 作为根据本发明的直线运动装置的滚珠丝杠（1）具有分别具有面向相邻滚动体（9）的两个凹面（23）的保持片（21）。 每个保持片（21）设置在相邻的滚动元件（9）之间。 在各滚动体（9）的表面层设置含有15〜40体积％的残留奥氏体的碳氮共渗层。

    Rolling bearing
    2.
    发明申请
    Rolling bearing 有权
    滚动轴承

    公开(公告)号：US20040266632A1

    公开(公告)日：2004-12-30

    申请号：US10900155

    申请日：2004-07-28

    Applicant: NSK LTD.

    Inventor： Kenichi Iso

    IPC: C10M169/06

    CPC classification number: C10M169/02 ,  C10M2207/1285 ,  C10M2213/0606 ,  C10M2213/0626 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/28 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2240/02 ,  C10N2250/10 ,  F16C19/06 ,  F16C33/6633

    Abstract: A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.

    Rolling bearing
    3.
    发明申请
    Rolling bearing 审中-公开
    滚动轴承

    公开(公告)号：US20030069144A1

    公开(公告)日：2003-04-10

    申请号：US10141948

    申请日：2002-05-10

    Applicant: NSK LTD.

    Inventor： Kenichi Iso

    IPC: C10M169/06

    CPC classification number: C10M169/02 ,  C10M2207/1285 ,  C10M2213/0606 ,  C10M2213/0626 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/28 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2230/06 ,  C10N2230/12 ,  C10N2240/02 ,  C10N2250/10 ,  F16C19/06 ,  F16C33/6633

    Abstract: A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.

    Abstract translation: 描述了在内圈10和外圈11之间保持两个或更多个滚动元件13的滚动轴承，使得这些滚动元件能够自由滚动并且填充有润滑脂，其中润滑脂是至少一种金属 各自含有8〜35质量％的增稠剂的皂基润滑脂和尿素类润滑脂，以及含有作为增稠剂的聚四氟乙烯15〜42.5质量％的作为基础油的全氟聚醚油的氟系润滑脂 所述至少一种金属络合物皂类润滑脂和尿素类润滑脂与所述氟系润滑脂的比例为40〜80:60〜20质量％，所述增稠剂的总量为20〜30质量％ 质量

    Rolling bearing
    6.
    发明申请
    Rolling bearing 有权
    滚动轴承

    公开(公告)号：US20020082175A1

    公开(公告)日：2002-06-27

    申请号：US10033918

    申请日：2002-01-03

    Applicant: NSK LTD.

    Inventor： Kenichi Iso ,  Atsushi Yokouchi ,  Michiharu Naka

    IPC: C10M169/06

    CPC classification number: F16C33/6633 ,  C10M129/42 ,  C10M129/46 ,  C10M129/76 ,  C10M133/16 ,  C10M169/06 ,  C10M2205/0285 ,  C10M2207/0406 ,  C10M2207/127 ,  C10M2207/16 ,  C10M2207/288 ,  C10M2215/1013 ,  C10M2215/1026 ,  C10M2215/28 ,  C10M2219/046 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/03 ,  C10N2210/04 ,  C10N2210/08 ,  C10N2240/02 ,  C10N2250/10 ,  F16C33/6614

    Abstract: 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.

    Abstract translation: 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。

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