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公开(公告)号：US06903056B2
公开(公告)日：2005-06-07
申请号：US10326101
申请日：2002-12-23
IPC分类号： F16C17/10 , C10M105/36 , C10M111/02 , C10M111/04 , C10M169/04 , C10N20/00 , C10N20/02 , C10N40/02 , F16C33/10 , H02K5/167 , H02K7/08 , C10M129/72 , F16C32/00
CPC分类号： C10M169/04 , C10M111/02 , C10M111/04 , C10M2203/106 , C10M2203/1065 , C10M2205/02 , C10M2205/0206 , C10M2205/028 , C10M2205/0285 , C10M2207/282 , C10M2207/2825 , C10M2207/283 , C10M2207/2835 , C10M2215/064 , C10M2215/223 , C10M2223/04 , C10N2220/022 , C10N2240/02 , F16C17/107 , F16C33/104 , F16C33/109 , F16C33/6688
摘要： There is provided a durable low-torque lubricating oil for bearings and fluid dynamic bearings, porous oil-impregnated bearings and hydrodynamic type porous oil-impregnated bearings suitable for use as bearings in small-sized spindle motors for information equipment. The lubricating oil composition comprising (A) a diester of a monovalent aliphatic alcohol containing 6-10 carbon atoms and a saturated aliphatic dicarboxylic acid containing 10 carbon atoms as base oil and (B) 3-20% by weight of a low-viscosity lubricating oil with a kinematic viscosity of less than 11 mm2/s at 40° C., a fluid dynamic pressure bearing unit or a porous oil-impregnated bearing unit containing said lubricating oil composition or a spindle motor provided with said bearing unit.
摘要翻译： 为轴承和流体动力轴承提供耐用的低扭矩润滑油，适用于信息设备小型主轴电机用轴承的多孔含油轴承和流体动力型多孔含油轴承。 所述润滑油组合物包含（A）含有6-10个碳原子的一价脂族醇和含有10个碳原子的饱和脂族二羧酸作为基础油的二酯和（B）3-20重量％的低粘度润滑油 在40℃下运动粘度小于11mm 2的油，含有所述润滑油组合物的流体动压承载单元或多孔含油轴承单元或设置的主轴马达 与所述轴承单元。
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公开(公告)号：US06673750B2
公开(公告)日：2004-01-06
申请号：US10079263
申请日：2002-02-19
申请人： Masakazu Hirata , Atsushi Morooka , Hidenobu Mikami , Toshiyuki Mizutani , Seiichi Takada , Masaaki Honda , Yoshihiko Oeda , Katsumi Nagano
发明人： Masakazu Hirata , Atsushi Morooka , Hidenobu Mikami , Toshiyuki Mizutani , Seiichi Takada , Masaaki Honda , Yoshihiko Oeda , Katsumi Nagano
IPC分类号： C10M16902
CPC分类号： C10M169/04 , C10M111/04 , C10M169/00 , C10M2201/1036 , C10M2201/1056 , C10M2203/102 , C10M2203/106 , C10M2205/0206 , C10M2205/0225 , C10M2205/026 , C10M2205/0265 , C10M2205/0285 , C10M2205/16 , C10M2207/0406 , C10M2207/125 , C10M2211/063 , C10M2213/0626 , C10M2215/064 , C10M2215/066 , C10M2215/102 , C10M2217/0456 , C10M2219/044 , C10M2223/04 , C10M2223/043 , C10M2223/049 , C10N2220/02 , C10N2240/02 , C10N2250/10 , C10N2260/02 , C10N2260/04
摘要： Disclosed is a lubricating composition such as a lubricant, a lubricating grease, or a rust preventive oil for use in a torque limiter and a ball-and-roller bearing; the lubricating composition having chemical attack resistance for a synthetic resin molded product. The lubricating composition comprises as a base oil at least one synthetic saturated hydrocarbon oil selected from the group consisting of a poly-&agr;-olefin, and an ethylene-&agr;-olefin copolymer. When a phosphoric acid ester is used as a compounding agent, or at lease one lubricating grease selected from the group consisting of an urea compound, silica powder, and bentonite powder is mixed therein, the lubricating composition is a rust preventive oil using a metal salt of sulfonic acid and the like. The lubricating composition is suitably used for machine parts of a business machine including the synthetic resin molded product.
摘要翻译： 公开了一种用于扭矩限制器和滚珠轴承的润滑剂，润滑剂，润滑脂或防锈油的润滑组合物; 所述润滑组合物对合成树脂成型体具有耐化学腐蚀性。 润滑组合物包含至少一种选自聚-α-烯烃和乙烯-α-烯烃共聚物的合成饱和烃油作为基础油。 当使用磷酸酯作为配混剂时，或者将至少一种选自脲化合物，二氧化硅粉末和膨润土粉末的润滑油混合在其中，润滑组合物是使用金属盐的防锈油 的磺酸等。 润滑剂组合物适用于包括合成树脂成型品的商业机器的机器部件。
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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
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。
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公开(公告)号：US07988361B1
公开(公告)日：2011-08-02
申请号：US09320649
申请日：1999-05-27
申请人： Natsuhiko Mori , Katsumi Nagano , Yoshihiko Oeda
发明人： Natsuhiko Mori , Katsumi Nagano , Yoshihiko Oeda
IPC分类号： F16C32/06
CPC分类号： F16C33/104 , C10M169/04 , C10M2205/0285 , C10M2207/1265 , C10M2207/2805 , C10M2207/2835 , C10M2209/084 , C10M2209/1045 , C10M2215/04 , C10M2215/064 , C10M2215/065 , C10M2215/1026 , C10M2215/223 , C10M2223/04 , C10N2230/06 , C10N2230/08 , C10N2240/02 , C10N2250/10 , F16C17/107 , F16C33/102 , F16C33/107 , F16C33/1085 , F16C33/109 , F16C2370/12 , F16C2370/22 , C10N2260/02 , C10N2210/01
摘要： A hydrodynamic type oil-impregnated sintered bearing includes a porous bearing body of sintered metal having a bearing surface opposed to a sliding surface of a rotating shaft, hydrodynamic pressure generating grooves slanting against an axial direction provided in the bearing surface, and lubricating oil or lubricating grease impregnated in pores inside the bearing body, wherein a rate of area of surface holes on the bearing surface is set within a range of 3%-15%, the surface holes being distributed substantially uniformly over the whole area of the bearing surface including areas of the hydronamic pressure generating grooves, wherein the lubricating oil or a base oil of the lubricating grease forms a lubricating film in a bearing clearance, and wherein the lubricating oil or a base oil of the lubricating grease is a lubricating oil selected from among mixtures of poly-α-olefin or hydrogenated compound thereof and a defined phosphoric ester.
摘要翻译： 流体动力型含油烧结轴承包括具有与旋转轴的滑动面相对的轴承面的烧结金属多孔轴承体，设置在轴承面上的轴向倾斜的流体动力学压力产生槽以及润滑油或润滑油 润滑脂浸渍在轴承体内的孔中，其中轴承表面上的表面孔的面积率设定在3％-15％的范围内，表面孔基本均匀地分布在轴承表面的整个区域上，包括区域 的润滑油或所述润滑脂的基础油在轴承间隙中形成润滑膜，并且其中所述润滑油或所述润滑脂的基础油是选自以下的混合物中的润滑油： 聚-α-烯烃或其氢化化合物和定义的磷酸酯。
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公开(公告)号：US08132965B2
公开(公告)日：2012-03-13
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： F16C32/06
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。
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