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    Rolling bearing for supporting rotary shaft of disk memory device
    1.
    发明授权
    Rolling bearing for supporting rotary shaft of disk memory device 失效
    滚动轴承用于支持磁盘存储装置的旋转轴

    公开(公告)号：US06332717B1

    公开(公告)日：2001-12-25

    申请号：US09384282

    申请日：1999-08-27

    申请人： Kouya Oohira ,  Masaki Egami ,  Yoshinobu Akamatsu

    发明人： Kouya Oohira ,  Masaki Egami ,  Yoshinobu Akamatsu

    IPC分类号： F16L3344

    CPC分类号： F16C33/78 ,  F16C19/06 ,  F16C33/416 ,  F16C33/44 ,  F16C33/6648 ,  F16C2220/04 ,  F16C2300/12 ,  F16C2370/12 ,  G11B19/2009 ,  G11B25/043

    摘要： A rolling bearing for a rotary shaft of a disk memory device which can maintain high-accuracy optical or magnetic recording ability over a long period of time. The rolling bearing supports a rotary shaft of a disk of disk memory device or a rotary shaft of an arm of a head, and has an inner ring having an inner diameter of 8 mm or less, and a retainer formed by molding an oil-containing resin composition comprising 40-94 wt % of a synthetic resin, 1-40 wt % of oil conducting material, and 5-30 wt % lubricating oil. Lubricating oil is dispersed uniformly in the composition, and can bleed onto the surface through the fibrous oil conducting material.

    摘要翻译： 一种盘式存储装置的旋转轴的滚动轴承，其能够长时间保持高精度的光或磁记录能力。 滚动轴承支承盘存储装置的盘的旋转轴或头部的臂的旋转轴，并且具有内径为8mm以下的内圈和通过模制含油的 树脂组合物包含40-94重量％的合成树脂，1-40重量％的导油材料和5-30重量％的润滑油。 润滑油均匀地分散在组合物中，并且可以通过纤维状导油材料渗出到表面上。

    Hydrodynamic bearing unit
    4.
    发明授权
    Hydrodynamic bearing unit 有权

    公开(公告)号：US06981797B2

    公开(公告)日：2006-01-03

    申请号：US10753448

    申请日：2004-01-09

    申请人： Natsuhiko Mori ,  Yoshinobu Akamatsu ,  Kazuo Okamura

    发明人： Natsuhiko Mori ,  Yoshinobu Akamatsu ,  Kazuo Okamura

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C33/102 ,  F16C33/104

    摘要： The squareness of the both end surfaces of the flange portion with respect to the outer circumference of the shaft portion of the shaft member is set to 0.001 mm or less respectively, and the flatness of both end surfaces of the flange portion is set to 0.001 mm or less respectively. The squareness of the end surface of the bearing member with respect to the inner circumference of the bearing member is set to 0.002 mm or less, and the flatness thereof is set to 0.0015 mm or less. The flatness of the inner surface of the bottom portion of the housing is set to 0.002 mm or less.

    Rolling contact bearing
    6.
    发明授权
    Rolling contact bearing 有权
    滚动轴承

    公开(公告)号：US08104968B2

    公开(公告)日：2012-01-31

    申请号：US12225532

    申请日：2007-03-26

    申请人： Yoshinobu Akamatsu

    发明人： Yoshinobu Akamatsu

    IPC分类号： F16C19/16 ,  F16C33/58 ,  F16C33/64

    CPC分类号： F16C33/32 ,  F16C33/585 ,  F16C2240/54

    摘要： The sectional shape of a rolling surface of at least one of bearing component parts has the following relation between the order n (n being an arbitrarily chosen natural number) and the amplitude r of waviness relative to the circularity of the sectional shape. The order n and the amplitude r are logarithmically transformed to define X=Log(n) from the order n and Y=Log (rn) from the amplitude r of n-order. When a regression line Y=aX+b is determined, the ratio δ/σ of the deviation δ at each X from the regression line of Y to the standard deviation σ is chosen to be smaller than 4.

    摘要翻译： 轴承部件中的至少一个的滚动面的截面形状在n（n为任意选择的自然数）与波纹的振幅r相对于截面形状的圆形度之间具有以下关系。 顺序n和振幅r对数变换，以从n阶的幅度r开始定义X = Log（n），Y = Log（rn）。 当回归线Y = aX + b被确定时，比率δ/＆sgr; 的从Y的回归线到标准偏差的每个X的偏差δ; 被选为小于4。

    Lubricating device for rolling bearing
    7.
    发明申请
    Lubricating device for rolling bearing 失效
    滚动轴承润滑装置

    公开(公告)号：US20090046965A1

    公开(公告)日：2009-02-19

    申请号：US11665694

    申请日：2005-08-23

    申请人： Yoshinobu Akamatsu ,  Masatsugu Mori

    发明人： Yoshinobu Akamatsu ,  Masatsugu Mori

    IPC分类号： F16C19/00

    CPC分类号： F16C19/163 ,  F16C33/6651 ,  F16C33/6674 ,  F16N2210/14

    摘要： A lubricating device for a rolling bearing includes a lubricating oil introduction member (7) that has a discharge opening (8) opened to a circumferential groove (6) provided in an end face of an inner race (2) of a bearing (1). A slope section (2b) is provided on an outer peripheral surface of the inner race (2) and guides the lubricating oil in the groove (6) to a raceway surface (2a) of the inner race (2) by centrifugal force and surface tension acting on the lubricating oil. The introduction member (7) is provided with a flange-like section (10) that overlays the slope section (2b) with a minute gap δ between the flange-like section (10) and the slope section (2b) and that controls the flow amount of the lubricating oil flowing through the gap δ to the raceway surface (2a).

    摘要翻译： 一种用于滚动轴承的润滑装置，具有：润滑油导入部件（7），其具有向轴承（1）的内圈（2）的端面设置的周向槽（6）开口的排出口（8） 。 在内座圈（2）的外周面上设有倾斜部（2b），通过离心力和表面将槽（6）中的润滑油引导到内圈（2）的滚道面（2a） 作用在润滑油上的张力。 引入构件（7）设置有凸缘状部分（10），其在凸缘状部分（10）和倾斜部分（2b）之间具有微小间隙δ，与斜面部分（2b）重叠，并且控制 流过间隙δ的润滑油的流量到滚道面（2a）。

    Rolling bearing
    8.
    发明申请
    Rolling bearing 有权
    滚动轴承

    公开(公告)号：US20090034892A1

    公开(公告)日：2009-02-05

    申请号：US11664778

    申请日：2005-10-07

    申请人： Yoshinobu Akamatsu ,  Masatsugu Mori ,  Takuji Kobayashi ,  Sun-woo Lee

    发明人： Yoshinobu Akamatsu ,  Masatsugu Mori ,  Takuji Kobayashi ,  Sun-woo Lee

    IPC分类号： F16C33/66

    CPC分类号： F16C33/6607 ,  F16C19/163 ,  F16C33/6622 ,  F16C33/6674 ,  F16C2322/39

    摘要： A rolling bearing assembly includes an inner race (1), an outer race (2) and a plurality of rolling elements (3) interposed between respective raceway surfaces (1, 2a) of the inner and outer races (1, 2). A stationary raceway member (2), which is one of the inner and outer races (1, 2) that are a raceway member and which is non-rotatable, is provided with a stepped face (2b) continued with the corresponding raceway surface (2a) and located in a direction away from the rolling elements (3). A gap defining piece (7) is provided, which has a tip held in face-to-face relation to the stepped face (2b) with a gap intervening between it and the stepped face (2b) and which defines a flow path (14) between a peripheral wall thereof and the stationary raceway member (2). A grease reservoir (9) is also provided in communication with the flow path (9).

    摘要翻译： 滚动轴承组件包括内座圈（1），外座圈（2）和插入在内座圈（1,2）的各个滚道表面（1,2）之间的多个滚动元件（3）。 作为滚道构件的内圈和外圈（1,2）之一并且不可旋转的固定滚道构件（2）设置有与相应的滚道表面（...）连续的台阶面（2b） 并且位于远离滚动元件（3）的方向上。 提供了间隙限定片（7），其具有与台阶面（2b）面对面地连接的尖端，其间具有介于其与台阶面（2b）之间的间隙，并且限定了流路（14） ）在其周壁和固定的滚道部件（2）之间。 还设置有与流路（9）连通的油脂储存器（9）。

    Method And Device For Assessing Residual Service Life Of Rolling Bearing
    9.
    发明申请
    Method And Device For Assessing Residual Service Life Of Rolling Bearing 有权
    评估滚动轴承残余使用寿命的方法和装置

    公开(公告)号：US20070277613A1

    公开(公告)日：2007-12-06

    申请号：US10593580

    申请日：2005-03-29

    申请人： Takuzo Iwatsubo ,  Isao Shiromaru ,  Makoto Tanaka ,  Yoshinobu Akamatsu ,  Yoji Nagayasu ,  Hideko Nagayasu ,  Shingo Boda

    发明人： Takuzo Iwatsubo ,  Isao Shiromaru ,  Makoto Tanaka ,  Yoshinobu Akamatsu ,  Yoji Nagayasu ,  Hideko Nagayasu ,  Shingo Boda

    IPC分类号： G01M13/04

    CPC分类号： G01M13/045 ,  F16C19/527

    摘要： Degradation of the lubricant due to contamination of the lubricant with wear particles or moisture, which greatly affects the service life of rolling bearings, can be detected in a cost-effective manner through the use of a resonance frequency band signal or high-frequency signal of an accelerometer, and the service life of a rolling bearing can be estimated with high precision at an early stage on the basis of the detected state of the wear particles and lubricant. Provided is a method comprising baseline data acquisition means for obtaining vibration signals by using an accelerometer 4 and using a testing device to acquire resonance frequency band signals detectable at the highest sensitivity, for each specification such as model number, manufacturer name, and other specifications for a rolling bearing 3 as pertains to the relationship between the state of wear particle penetration in a rolling bearing 3 and the vibration/bearing service life, and to lubricant degradation and vibration/bearing service life; measurement means whereby an accelerometer 4 is used to obtain vibration signals for the rolling bearing 3 whose remaining service life is being assessed and which resides on a fan, a pump, or another rotating device 1, 2, for the purpose of measuring resonance frequency band signals detectable at the highest sensitivity; and determination means for estimating the state of wear particle penetration and the state of lubricant degradation of the diagnostic rolling bearing 3, and computing the remaining service life of the diagnostic rolling bearing 3 by using measurement values obtained by the measurement means, determination results of the bearing specification determination means, and data obtained by the baseline data acquisition means.

    摘要翻译： 通过使用共振频带信号或高频信号的高频信号，可以以成本有效的方式检测由于润滑剂被磨损颗粒或湿气污染而导致的润滑剂的劣化，这极大地影响滚动轴承的使用寿命 基于磨损颗粒和润滑剂的检测状态，可以在早期高精度地估计滚动轴承的使用寿命。 提供了一种方法，其包括基线数据获取装置，用于通过使用加速度计4获得振动信号，并且使用测试装置获取针对每个规格可检测的最高灵敏度的共振频带信号，例如型号，制造商名称和其它规格 关于滚动轴承3中的磨损粒子穿透状态与振动/轴承使用寿命之间的关系以及润滑剂劣化和振动/轴承使用寿命的滚动轴承3。 测量装置，其中为了测量共振频带的目的，使用加速度计4来获得其剩余使用寿命被评估的滚动轴承3的振动信号，并且位于风扇，泵或其它旋转装置1,2上 信号在最高灵敏度下可检测; 以及用于估计磨损颗粒穿透的状态和诊断滚动轴承3的润滑剂劣化的状态的确定装置，以及通过使用由测量装置获得的测量值来计算诊断滚动轴承3的剩余使用寿命， 轴承规格确定装置，以及由基准数据获取装置获得的数据。

    Balls for ball bearing
    10.
    发明授权
    Balls for ball bearing 失效
    球轴承球

    公开(公告)号：US5642947A

    公开(公告)日：1997-07-01

    申请号：US687483

    申请日：1996-08-06

    申请人： Yoshinobu Akamatsu ,  Kikuo Maeda ,  Katsuyoshi Yoshimura ,  Katsunori Makino

    发明人： Yoshinobu Akamatsu ,  Kikuo Maeda ,  Katsuyoshi Yoshimura ,  Katsunori Makino

    IPC分类号： F16C33/32 ,  F16C33/66

    CPC分类号： F16C33/6651 ,  F16C33/32

    摘要： The object is to prolong the life of a ball bearing by improving its ability to form oil films. A multitude of needle-like microscopic recesses are formed in a dispersed manner at random in the surface of each ball for a ball bearing. The recesses have a predetermined length and width and are present at a predetermined density so that the surface has a predetermined centerline average roughness.

    摘要翻译： PCT No.PCT / JP95 / 01620 Sec。 371日期：1996年8月6日 102（e）日期1996年8月6日PCT提交1995年8月14日PCT公布。 出版物WO96 / 19678 日期1996年6月27日目的是通过提高其形成油膜的能力来延长球轴承的使用寿命。 多个针状微小凹槽以分散的方式随机地形成在用于球轴承的每个球的表面中。 凹部具有预定的长度和宽度并且以预定的密度存在，使得表面具有预定的中心线平均粗糙度。