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51. 发明授权

US09341214B2 Sleeve, fluid dynamic pressure bearing including the sleeve, spindle motor including the fluid dynamic pressure bearing and electronic equipment including the spindle motor 有权
标题翻译：套筒，流体动压轴承包括套筒，主轴电机包括流体动压轴承以及包括主轴电机在内的电子设备
公开(公告)号：US09341214B2
公开(公告)日：2016-05-17
申请号：US14264675
申请日：2014-04-29
申请人： NIDEC CORPORATION
发明人： Takehito Tamaoka , Kiyoto Ida , Masashi Hirayama , Kazuhiko Fukushima
IPC分类号： F16C33/10 , F16C32/06 , F16C33/74 , F16C17/04
CPC分类号： F16C33/104 , F16C17/045 , F16C17/107 , F16C33/1085 , F16C33/745 , F16C2240/30 , F16C2240/40 , F16C2370/12
摘要： A porous oil-impregnated sleeve is used for a fluid dynamic pressure bearing. The sleeve includes an inner surface, a first axial end face, a first recessed portion, and a first dynamic pressure generating groove. The first recessed portion is positioned on the other side of a line segment, which connects one-side end portion of the inner surface with an inner end portion of the first axial end face, in a cross-section including the central axis. A bottom portion of the first recessed portion, which has the longest distance between itself and the line segment, is positioned closer to the other side than a bottom portion of the first dynamic pressure generating groove in the axial direction.
摘要翻译：多孔油浸套筒用于流体动压轴承。套筒包括内表面，第一轴向端面，第一凹部和第一动压产生凹槽。所述第一凹部位于与包含所述中心轴的截面中的将所述内表面的一侧端部与所述第一轴向端面的内端部连接的线段的另一侧。第一凹部的自身与线段之间的距离最长的底部比轴向的第一动压产生槽的底部更靠近另一侧。

52. 发明授权

US09065308B2 Spindle motor with bearing holder having a bottom interior step 有权
标题翻译：带轴承座的主轴电机具有底部内部台阶
公开(公告)号：US09065308B2
公开(公告)日：2015-06-23
申请号：US13692336
申请日：2012-12-03
申请人： Masahiro Nishidate
发明人： Masahiro Nishidate
IPC分类号： H02K15/12 , H02K5/16 , F16C32/06 , H02K7/08 , H02K5/167 , F16C33/72 , F16C33/74 , F16C33/10
CPC分类号： H02K7/08 , F16C33/104 , F16C33/723 , F16C33/74 , F16C2370/12 , H02K5/1675
摘要： In addition to a bearing holder being provided with an annular groove that opens down in the axial direction, an end cap is provided with an annular projection that extends up in the axial direction, and by way of press-fitting the projection into the groove, the fitted portion of the bearing holder and the end cap is forms an axially convex labyrinthine shape extending along the entire perimeter.
摘要翻译：另外，在轴承座上设置有沿轴向开口的环状槽的情况下，在端盖上设置有沿轴向向上延伸的环状突起，通过将凸部压配合到槽内，轴承座的安装部分和端盖形成沿着整个周边延伸的轴向凸起的迷宫形状。

53. 发明申请

US20150105304A1 GREASE COMPOSITION,GREASE-PACKED BEARING, UNIVERSAL JOINT FOR PROPELLER SHAFT, LUBRICATING OIL COMPOSITION, AND OIL-IMPREGNATED SINTERED BEARING 有权
标题翻译：润滑脂组合物，油脂包装轴承，螺旋桨轴承，润滑油组合物和油浸铸造轴承的通用联轴器
公开(公告)号：US20150105304A1
公开(公告)日：2015-04-16
申请号：US14576045
申请日：2014-12-18
申请人： NTN CORPORATION
发明人： Hidenobu MIKAMI , Yosuke TAGUCHI , Takayuki KAWAMURA
IPC分类号： C10M169/06
CPC分类号： C10M169/06 , C10M129/02 , C10M129/04 , C10M129/06 , C10M129/08 , C10M129/12 , C10M129/14 , C10M129/16 , C10M129/18 , C10M129/20 , C10M129/24 , C10M129/68 , C10M129/92 , C10M129/93 , C10M129/94 , C10M159/02 , C10M169/00 , C10M2203/1006 , C10M2205/0285 , C10M2207/024 , C10M2207/026 , C10M2207/0406 , C10M2207/08 , C10M2207/106 , C10M2207/124 , C10M2207/1256 , C10M2207/128 , C10M2207/1285 , C10M2207/144 , C10M2207/2805 , C10M2207/2835 , C10M2207/289 , C10M2211/063 , C10M2213/043 , C10M2213/0606 , C10M2213/0613 , C10M2213/0626 , C10M2215/064 , C10M2215/1026 , C10M2215/224 , C10M2215/2245 , C10M2219/0406 , C10M2219/044 , C10M2223/045 , C10N2220/022 , C10N2220/04 , C10N2230/02 , C10N2230/06 , C10N2230/08 , C10N2230/12 , C10N2240/02 , C10N2240/30 , C10N2250/10 , F16C19/06 , F16C33/10 , F16C33/104 , F16C33/6633 , F16C2361/41 , F16C2361/63 , F16C2370/38 , F16C2380/26 , F16D3/227 , F16D2300/06 , C10N2210/01 , C10N2210/02
摘要： The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.
摘要翻译：本发明提供一种能够有效地防止在滚动轴承的滚动面上发生氢脆性剥离的润滑脂组合物或润滑油组合物，其耐高温性和高速运转性优异，可以使用需很长时间。润滑脂填充轴承（1）具有内圈（2），外圈（3）和多个滚动元件（4）。在设置在内圈（2）和外圈（3）的两轴向端的开口（8a）和（8b）处设置用于密封润滑脂组合物（7）的密封构件（6）。润滑脂组合物（7）包括由基础油和增稠剂组成的基础润滑剂和添加到基础油脂中的添加剂。添加剂含有选自植物来源的多酚化合物和通过其分解形成的化合物中的至少一种化合物。上述化合物包括单宁，没食子酸，鞣花酸，绿原酸，咖啡酸，姜黄素，槲皮素和奎尼酸。

54. 发明授权

US08922091B2 Spindle motor 有权
标题翻译：主轴电机
公开(公告)号：US08922091B2
公开(公告)日：2014-12-30
申请号：US13162175
申请日：2011-06-16
申请人： Heechul Jung
发明人： Heechul Jung
IPC分类号： H02K5/16 , G11B19/20 , H02K1/18 , F16C33/10
CPC分类号： H02K5/163 , F16C33/104 , G11B19/2009 , H02K1/187
摘要： A spindle motor is provided, the motor including a bearing assembly including a bearing housing that further includes a housing body and a plurality of staircase sills formed at a periphery of the bearing housing, and a bearing disposed inside the bearing housing; a stator including a core that further includes core pieces formed with through holes at which each of the staircase sills is hitched, and a coil wound on the core; a rotation shaft inserted into a rotation shaft hole of the bearing; and a rotor including a yoke coupled to the rotation shaft and a magnet secured at an inner lateral surface of the yoke to face the core.
摘要翻译：提供一种主轴电动机，该电动机包括轴承组件，该轴承组件包括轴承壳体，其进一步包括壳体主体和形成在轴承壳体的周边处的多个阶梯门槛以及设置在轴承壳体内部的轴承; 定子，其包括芯，其进一步包括形成有通孔的芯片，所述通孔在每个所述阶梯框架处被夹紧，以及缠绕在所述芯上的线圈; 插入轴承的旋转轴孔中的旋转轴; 以及转子，其包括联接到所述旋转轴的轭，以及固定在所述轭的内侧表面以面对所述芯的磁体。

55. 发明授权

US08459873B2 Self-lubricating composite bearing 有权
标题翻译：自润滑复合轴承
公开(公告)号：US08459873B2
公开(公告)日：2013-06-11
申请号：US12624173
申请日：2009-11-23
申请人： Han-Ching Liu , Lung-Wei Huang
发明人： Han-Ching Liu , Lung-Wei Huang
IPC分类号： F16C33/02 , F16C17/00 , F16C33/10
CPC分类号： F16C33/104
摘要： A self-lubricating composite bearing includes a casing and a bearing set. The bearing set comprises at least two bearing members. The casing axially defines an accommodation space through two opposite ends thereof for mounting the bearing set therein. An axial hole is defined through two opposite ends of the bearing set for the insertion of a shaft. The bearing set includes at least one neck portion. At least one storage chamber is defined between an inner surface of the casing and an outer surface of the at least one neck portion of the bearing set and stores a higher viscosity lubricant therein. At least one fine flow passage is defined through the at least one neck portion of the bearing set. The at least one storage chamber is in fluid communication with the axial hole of the bearing set via the at least one fine flow passage.
摘要翻译：自润滑复合轴承包括壳体和轴承组。轴承组包括至少两个轴承部件。壳体通过其两个相对的端部轴向地限定了容纳空间，用于将轴承组件安装在其中。通过轴承组的两个相对端限定轴向孔，用于插入轴。轴承组包括至少一个颈部。在壳体的内表面和轴承组的至少一个颈部的外表面之间限定至少一个储存室，并在其中存储较高粘度的润滑剂。通过轴承组的至少一个颈部部分限定至少一个细流动通道。所述至少一个储存室经由所述至少一个细流动通道与所述轴承组的轴向孔流体连通。

56. 发明授权

US08398307B2 Bearing device 有权
标题翻译：轴承装置
公开(公告)号：US08398307B2
公开(公告)日：2013-03-19
申请号：US13182712
申请日：2011-07-14
申请人： Bin Chen
发明人： Bin Chen
IPC分类号： F16C32/06 , F16C33/10 , F16N15/00
CPC分类号： F16C33/74 , F16C33/104 , F16C2360/46
摘要： A bearing device comprises a bearing fixing base, a hub, an oil seal bush, and an oily felt. The bearing fixing base is fixedly joined with a tubular support; the hub is fixedly joined with a rotor spindle which extends into the tubular support and rotates with respect to the tubular support; the oil seal bush is disposed between the spindle and the tubular support with a receiving clearance being defined between the oil seal bush and the tubular support; the oily felt is disposed in the receiving clearance. The oily felt supplies lubrication oil to lubricate the oil seal bush for prolonging a life span of the bearing device.
摘要翻译：轴承装置包括轴承固定底座，轮毂，油封套和油毡。轴承固定底座与管状支架固定连接; 毂与转子轴固定连接，转子轴延伸到管状支撑件中并相对于管状支撑件旋转; 所述油封衬套设置在所述主轴和所述管状支撑件之间，在所述油封衬套和所述管状支撑件之间限定有容纳间隙; 油毡被放置在接收间隙中。油毡提供润滑油润滑油封衬套，延长轴承装置的使用寿命。

57. 发明申请

US20110057527A1 HYDRODYNAMIC TYPE OIL-IMPREGNATED SINTERED BEARING 有权
标题翻译：水动力型油封式烧结轴承
公开(公告)号：US20110057527A1
公开(公告)日：2011-03-10
申请号：US12944471
申请日：2010-11-11
申请人： Natsuhiko Mori , Katsumi Nagano , Yoshihiko Oeda
发明人： Natsuhiko Mori , Katsumi Nagano , Yoshihiko Oeda
IPC分类号： H02K5/167 , F16C33/02
CPC分类号： F16C33/102 , C10M105/34 , C10M105/38 , C10M107/02 , C10M113/00 , C10M113/12 , C10M115/08 , C10M117/00 , C10M133/12 , C10M133/44 , C10M137/04 , C10M169/00 , C10M2205/00 , C10M2205/02 , C10M2205/022 , C10M2205/026 , C10M2205/14 , C10M2207/125 , C10M2207/129 , C10M2207/281 , C10M2207/282 , C10M2207/283 , C10M2207/286 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/30 , C10M2223/04 , C10M2223/042 , C10N2210/01 , C10N2210/02 , C10N2210/03 , C10N2220/02 , C10N2240/00 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66 , F16C17/107 , F16C33/104 , Y10S384/902
摘要： A hydrodynamic type oil-impregnated sintered bearing includes a porous bearing body of sintered metal having a bearing surface in which hydrodynamic pressure generating grooves slating against an axial direction are provided. Lubricating oil or the base oil of lubricating grease to be impregnated into the bearing body is selected from among (a) mixtures of poly-α-olefin or hydrogenated compound thereof and ester and (b) ester. The ester is preferably polyol ester. In the cases of the lubricating grease, the thickener of the lubricating grease is preferably composed of urea compound. A plurality of bearing surfaces may be formed on the inner periphery of the bearing body so as to be separated from one another. The hydrodynamic type oil-impregnated sintered bearing may be suitably applied to a spindle motor for information equipment.
摘要翻译：流体动力型油浸式烧结轴承包括具有轴承表面的烧结金属的多孔轴承体，其中设置有沿轴向方向的流体动力学压力产生槽。润滑油或要浸渍到轴承体中的润滑脂的基础油选自（a）聚-α-烯烃或其氢化化合物与酯和（b）酯的混合物。该酯优选为多元醇酯。在润滑脂的情况下，润滑脂的增稠剂优选由尿素化合物构成。可以在轴承体的内周上形成多个轴承表面以彼此分离。流体动力型含油烧结轴承可以适用于信息设备的主轴电动机。

58. 发明申请

US20090116773A1 METAL BEARING 失效
标题翻译：金属轴承
公开(公告)号：US20090116773A1
公开(公告)日：2009-05-07
申请号：US12298841
申请日：2006-04-28
申请人： Hiroshi Kobayashi
发明人： Hiroshi Kobayashi
IPC分类号： F16C33/10
CPC分类号： F16C17/02 , B22F1/0062 , B22F3/26 , C22C1/08 , C22C33/0242 , F16C33/10 , F16C33/1035 , F16C33/104 , F16C33/1095 , F16C33/124 , F16C33/14 , F16C2220/20 , F16C2223/30 , H01F1/344 , H01F1/36
摘要： A metal bearing having a long operating life that is not affected by the operating temperature. The metal bearing includes a bearing surface capable of slidably contacting with a shaft member, including pores in a surface and interior thereof, and being composed of a sintered compact having a metal or alloy as a main component. A dispersion solvent is provided inside the pores, and maghemite particles exist in the dispersion solvent together with at least one of a gas and a liquid that has a boiling point lower than a boiling point of the dispersion solvent.
摘要翻译：具有不受工作温度影响的长使用寿命的金属轴承。金属轴承包括能够与轴构件滑动接触的轴承表面，其包括表面和内部的孔，并且由具有金属或合金作为主要成分的烧结体构成。在孔内部设置分散溶剂，并且与分散溶剂的沸点低于沸点的气体和液体中的至少一种一起，在分散溶剂中存在磁赤铁矿颗粒。

59. 发明申请

US20080144984A1 POROUS PLAIN BEARING WITH CONTINUOUS VARIATION OF THE BOREHOLE COMPRESSION 有权
标题翻译：多孔平台轴承连续变形的井筒压缩
公开(公告)号：US20080144984A1
公开(公告)日：2008-06-19
申请号：US11972099
申请日：2008-01-10
申请人： Andreas Vogt , Gerd Dornhofer , Hans-Peter Koch , Werner Stehr , Christina Messner , Peter Kronbichler , Kurt Goller , Heinrich Hecher
发明人： Andreas Vogt , Gerd Dornhofer , Hans-Peter Koch , Werner Stehr , Christina Messner , Peter Kronbichler , Kurt Goller , Heinrich Hecher
IPC分类号： F16C33/02
CPC分类号： F16C33/103 , F16C17/02 , F16C33/104 , F16C33/145 , F16C33/24 , F16C2361/61 , Y10S384/902 , Y10T29/49647
摘要： The invention pertains to a plain porous bearing for motors and transmissions with a circular bearing bore that displays, distributed alternatingly across the bearing bore, highly compressed at least approximately closed-pore areas and slightly compressed, open-pore areas, where the bearing bore diameters of the highly and slightly compressed areas are at least approximately identical. Also provided is a procedure and device for production of the bearing.
摘要翻译：本发明涉及用于具有圆形轴承孔的电动机和变速器的普通多孔轴承，其显示，交替地跨越轴承孔分布，高度压缩的至少近似闭孔区域和稍微压缩的开孔区域，其中轴承孔直径的高度和轻微压缩的区域至少大致相同。还提供了用于生产轴承的程序和装置。

60. 发明授权

US07387444B2 Oil-impregnated sintered bearing 有权
标题翻译：浸油烧结轴承
公开(公告)号：US07387444B2
公开(公告)日：2008-06-17
申请号：US11259357
申请日：2005-10-27
申请人： Seiji Shimizu , Tomokazu Sonozaki
发明人： Seiji Shimizu , Tomokazu Sonozaki
IPC分类号： F16C33/00 , F16C23/04
CPC分类号： F16C23/041 , F16C17/02 , F16C33/104 , F16C2240/40 , F16C2240/50 , F16C2380/27 , Y10S384/902
摘要： Disclosed is an oil-impregnated sintered bearing in which local relative sliding between the oil-impregnated sintered bearing and the shaft is avoided, thereby mitigating stress concentration on the bearing surface of the oil-impregnated sintered bearing. An oil-impregnated sintered bearing 1 which has in its inner periphery a bearing surface 1a making relative sliding with the outer peripheral surface 22a of a shaft 22 and which has at both axial ends of the bearing surface 1a crowning portions 1c which are of a configuration satisfying the following conditions: 1.75×10−3≦γ/b1≦5.2×10−2, and 1.75×10−3≦γ/b2≦5.2×10−2, and 0.2≦(b1+b2)/a≦0.8, where γ is the maximum radial drop amount of the crowning portions 1c, b1 is the axial length of the crowning portion 1c at one axial end; b2 is the axial length of the crowning portion 1c at the other axial end; and a is the total axial length of the oil-impregnated sintered bearing 1.
摘要翻译：公开了一种油浸烧结轴承，其中避免了浸油烧结轴承和轴之间的局部相对滑动，从而减轻了油浸烧结轴承的轴承表面上的应力集中。一种浸油烧结轴承1，其内周具有轴承表面1a，轴承表面1a与轴22的外周表面22a相对滑动，并且在轴承表面1的两个轴向端处具有隆起部分1c，具有满足以下条件的配置：1.75×3 -3 <=γ/ b 1 <= 5.2×10 -2 -2，和1.75×10 -3〜 SUP> <=γ/ b 2 <= 5.2×10 -2 -2和0.2 <=（b 1+ b 2）/ a <= 0.8，其中γ是冠状物的最大径向下落量部分1c，b1是在一个轴向端处的隆起部分1c的轴向长度; b 2是另一个轴向端部处的隆起部1c的轴向长度; a是油浸烧结轴承1的总轴向长度。

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