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1. 发明授权

US06332714B1 Induction-hardened rolling bearing device 失效
标题翻译：感应淬火滚动轴承装置
公开(公告)号：US06332714B1
公开(公告)日：2001-12-25
申请号：US09339238
申请日：1999-06-24
申请人： Hiromichi Takemura , Nobuaki Mitamura , Yasuo Murakami , Tomonobu Yoshikawa , Shuhei Kitano , Kazuhiko Hiraoka
发明人： Hiromichi Takemura , Nobuaki Mitamura , Yasuo Murakami , Tomonobu Yoshikawa , Shuhei Kitano , Kazuhiko Hiraoka
IPC分类号： F16C3332
CPC分类号： F16C29/005 , C21D1/10 , C21D9/40 , F16C33/62 , F16C33/64 , Y02P10/253 , Y10S384/913
摘要： An induction-hardened rolling bearing device used by disposing rolling elements in a raceway track member, with excellent cold drawability and improved wear resistance and extended service life, in which ingredients of an alloy for the raceway track member contain, from 0.40 to 0.90% of C, from 0.05 to 0.80% of Si, from 0.10 to 2.0% of Mn, from 0.05 to 0.50% of Ti and 0.03% or less of N, on the weight basis, induction hardening is applied at least to the raceway surface of the raceway track member, and Ti carbide and Ti carbonitride each having an average particle diameter of from 5 to 100 nm are dispersed on the surface and in the steels of the raceway track member to make the hardness of the raceway surface to HRC 59 or more.
摘要翻译：一种感应淬火滚动轴承装置，其用于在滚道轨道构件中设置滚动元件，具有优异的可拉伸性和改善的耐磨性，并且延长了使用寿命，其中用于轨道轨道构件的合金的成分含有0.40至0.90％ C，0.05〜0.80％的Si，0.10〜2.0％的Mn，0.05〜0.50％的Ti和0.03％以下的N，以重量计，至少施加至轨道轨道构件和平均粒径为5〜100nm的Ti碳化物和碳氮化钛分散在轨道轨道构件的表面和钢中，使得轨道面的硬度达到HRC 59以上。

2. 发明授权

US6165100A High-cleanness steel and toroidal type continuously variable transmission including components such as input/output discs, power roller and cam disc using the high-cleanness steel 有权
标题翻译：高清洁钢和环形无级变速器，包括输入/输出盘，动力辊和凸轮盘等部件，使用高清洁度钢
公开(公告)号：US6165100A
公开(公告)日：2000-12-26
申请号：US187607
申请日：1998-11-06
申请人： Nobuaki Mitamura , Tomonobu Yoshikawa , Yasuo Murakami
发明人： Nobuaki Mitamura , Tomonobu Yoshikawa , Yasuo Murakami
IPC分类号： F16H15/38 , F16H55/32
CPC分类号： F16H15/38
摘要： At least one of input/output disks, a power roller and a cam disk of a toroidal type continuously variable transmission is formed of a high-cleanness steel in which a size of a maximum inclusion is estimated by the following extremum statistical process. In step S1, a plane including a central line of the high-cleanness steel is cut out in a direction of rolling of the high-cleanness steel. In step S2, a portion d of the cut-out cross-section, which is defined by 40% of a diameter D in the vicinity of the central line, is used as a to-be-tested surface. In step S3, a test reference area S.sub.0 is set at an area not less than 300 mm.sup.2 within the to-be-tested surface, and a root of an area of the maximum inclusion is measured five times or more. In step S4, a maximum inclusion distribution straight line is obtained. In step S5, the root, that is, the size of the area of the maximum inclusion within an estimation area S is estimated.
摘要翻译：输入/输出盘，动力辊和环形无级变速器的凸轮盘中的至少一个由高清洁度钢形成，其中通过以下极值统计过程估计最大夹杂物的尺寸。在步骤S1中，在高洁净度钢的轧制方向上切断包括高洁净度钢的中心线的平面。在步骤S2中，作为待测试表面，使用由中心线附近的直径D的40％定义的切口横截面的部分d。在步骤S3中，将测试基准区域S0设定在待测试表面内的不小于300mm 2的区域，并且测量最大夹杂物的面积的根数是五次以上。在步骤S4中，获得最大夹杂物分布直线。在步骤S5中，估计根，即估计区域S内的最大包含区域的大小。

3. 发明授权

US07037386B2 Rolling bearing for continuously variable transmission 失效
公开(公告)号：US07037386B2
公开(公告)日：2006-05-02
申请号：US10410342
申请日：2003-04-10
申请人： Susumu Tanaka , Nobuaki Mitamura , Hiromichi Takemura , Yoshitaka Hayashi , Yasuo Murakami
发明人： Susumu Tanaka , Nobuaki Mitamura , Hiromichi Takemura , Yoshitaka Hayashi , Yasuo Murakami
IPC分类号： C22C38/24 , C22C38/46
CPC分类号： F16C33/62 , C21D9/36 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/18 , F16C33/30 , F16C33/6688 , F16C2361/63 , F16C2361/65 , Y10S148/906 , Y10S384/912
摘要： A rolling bearing for belt-type continuously variable transmission with a metal belt including pieces has an inner ring; an outer ring; and rolling elements, wherein at least one of the inner ring, the outer ring and the rolling element is made of an iron alloy having a chromium content of from 2.5 to 20.0% by weight.

4. 发明授权

US6152605A Ball bearing 失效
标题翻译：滚珠轴承
公开(公告)号：US6152605A
公开(公告)日：2000-11-28
申请号：US379748
申请日：1999-08-24
申请人： Hiromichi Takemura , Kazuo Sekino , Nobuaki Mitamura , Yasuo Murakami , Hiroshi Suzuki , Yoshitaka Hayashi
发明人： Hiromichi Takemura , Kazuo Sekino , Nobuaki Mitamura , Yasuo Murakami , Hiroshi Suzuki , Yoshitaka Hayashi
IPC分类号： F16C33/58 , F16C33/66
CPC分类号： F16C33/6685 , F16C33/585 , F16C33/6659 , F16C19/06
摘要： A ball bearing in which races are well prevented from flaking in early stages under an environment using lubricating oil having a high traction coefficient so that a long life of the ball bearing is attained, while the cost of the bearing is reduced. The ball bearing has a plurality of balls disposed between a fixed race and a rotating race, and the ball bearing is used under an environment using lubricating oil having a traction coefficient of 0.07 or more under the conditions that a slip factor is 5% and a temperature is 40.degree. C. At least the groove radius of the rotating race is set to be in a range of from 0.53 Dw to 0.58 Dw both inclusive when Dw designates the diameter of balls. In addition, the hardness of the race is set to be in a range of from HRC 58 to HRC 64 both inclusive.
摘要翻译：一种滚珠轴承，其中在使用具有高牵引系数的润滑油的环境下，在早期阶段很好地防止了种族脱落，从而在轴承的成本降低的同时实现了滚珠轴承的使用寿命长。滚珠轴承具有设置在固定座圈和旋转座圈之间的多个球，并且在滑动系数为5％的条件下，在具有0.07以上的牵引系数的润滑油的环境下使用滚珠轴承，温度为40℃。当Dw表示球的直径时，至少将旋转座圈的槽半径设定在0.53Dw〜0.58Dw的范围内。另外，将该种族的硬度设定在HRC58〜HRC64的范围内。

5. 发明授权

US06174085B1 Linear guide bearing device 失效
标题翻译：直线导轨轴承装置
公开(公告)号：US06174085B1
公开(公告)日：2001-01-16
申请号：US09226032
申请日：1999-01-05
申请人： Tomonobu Yoshikawa , Nobuaki Mitamura
发明人： Tomonobu Yoshikawa , Nobuaki Mitamura
IPC分类号： F16C2906
CPC分类号： F16C29/0633 , F16C33/32 , F16C33/62 , F16C33/64 , Y10S384/912
摘要： A linear guide bearing device includes a rail, a bearing supported by the rail and rectilinearly movable along the axial direction of the rail, and rolling members interposed between the rail and the bearing to roll along with motion of the bearing. At least one of the rail and the bearing is made of induction-hardened steel including 0.6 to 0.9 wt % of carbon, 0.05 to 0.25 wt % of silicon, 0.3 to 0.9 wt % of manganese, 0.1 to 0.5 wt % of chromium, 0.2 to 1.0 wt % of molybdenum, and residual portion as iron and unavoidable impurities, and the induction-hardened steel has a total content of carbon, manganese, and molybdenum, which satisfies predetermined inequalities.
摘要翻译：线性导向轴承装置包括轨道，由轨道支撑并且沿着轨道的轴向可直线运动的轴承，以及插入在轨道和轴承之间的滚动构件与轴承的运动一起滚动。轨道和轴承中的至少一个由感应淬火钢制成，包括0.6至0.9重量％的碳，0.05至0.25重量％的硅，0.3至0.9重量％的锰，0.1至0.5重量％的铬，0.2 至1.0重量％的钼，剩余部分为铁和不可避免的杂质，并且感应淬火钢具有满足预定不等式的碳，锰和钼的总含量。

6. 发明授权

US6066068A Toroidal type continuously variable transmission 有权
标题翻译：环形无级变速器
公开(公告)号：US6066068A
公开(公告)日：2000-05-23
申请号：US183630
申请日：1998-10-30
申请人： Hiromichi Takemura , Nobuaki Mitamura
发明人： Hiromichi Takemura , Nobuaki Mitamura
IPC分类号： C21D9/40 , C22C38/00 , C22C38/12 , F16C19/10 , F16H15/38
CPC分类号： F16H15/38 , Y10S384/912
摘要： A power roller bearing and input and output disks are made of a material containing 0.15 to 0.5 wt %, 0.15 to 1.5 wt %, and 0.1 to 1.5 wt % of C, Si, and Mo, respectively, and 9 ppm or less of oxygen. At least one component selected from the group consisting of the inner and outer rings and the input and output disks is subjected to carbonitriding, hardening, tempering and grinding, such that a finished surface hardness has a Vickers hardness of Hv720 or more and the hardness at a depth of Dx from the surface is Hv650 or more. The Dx is a critical equivalent stress generation position in a synthetic stress distribution and meets Dx=3.0 Zo to 5.0 Zo where Zo is a maximum dynamic shearing stress generation position from the surface.
摘要翻译：动力滚子轴承和输入和输出盘由分别含有0.15至0.5重量％，0.15至1.5重量％和0.1至1.5重量％的C，Si和Mo以及9ppm或更少的氧的材料制成。。选自由内外环和输入和输出盘组成的组中的至少一种组分进行碳氮共渗，硬化，回火和研磨，使得成品表面硬度的维氏硬度为Hv720以上，硬度为表面Dx的深度为Hv650以上。 Dx是合成应力分布中的关键等效应力产生位置，并且满足Dx = 3.0Zo至5.0Zo，其中Zo是来自表面的最大动态剪切应力产生位置。

7. 发明授权

US5853660A Rolling bearing made of improved bearing steel 失效
标题翻译：滚动轴承由改进的轴承钢制成
公开(公告)号：US5853660A
公开(公告)日：1998-12-29
申请号：US542828
申请日：1995-10-13
申请人： Yasuo Murakami , Nobuaki Mitamura , Seiji Sato
发明人： Yasuo Murakami , Nobuaki Mitamura , Seiji Sato
IPC分类号： F16C33/62 , C21D1/18 , C21D1/32 , C21D1/78 , C21D9/40 , C22C38/00 , C22C38/18
CPC分类号： C22C38/18 , C21D1/78 , C21D9/40 , C21D1/18 , C21D1/32 , Y10S148/906
摘要： A bearing steel includes 0.70 to 0.93 wt % of C, 0.15 to 0.50 wt % of Si, 0.50 to 1.10 wt % of Mn and 0.3 to 0.65 wt % of Cr, with the balance being Fe and incidental impurities, and it has the ratio Cr/C specified to fall within 0.4 to 0.7. Because of these compositional features, the generation of macro carbides is prevented and the need to perform soaking at high temperature for a prolonged time is eliminated. Further, the bearing steel saves the materials cost and the overall cost of heat treatments in the manufacture of bearings and which yet is capable of satisfying the requirements of various characteristics of bearings, as well as a rolling bearing that employs the bearing steel.
摘要翻译：轴承钢包括C：0.70〜0.93重量％，Si：0.15〜0.50重量％，Mn：0.50〜1.10重量％，Cr：0.3〜0.65重量％，余量：Fe和附带杂质， Cr / C规定为0.4〜0.7。由于这些组成特征，防止了大量碳化物的产生，并且消除了在高温下长时间浸泡的需要。此外，轴承钢节省了轴承制造中的材料成本和热处理的总体成本，并且能够满足轴承的各种特性的要求，以及采用轴承钢的滚动轴承。

8. 发明授权

US07137741B2 Rolling bearing 有权
公开(公告)号：US07137741B2
公开(公告)日：2006-11-21
申请号：US10310900
申请日：2002-12-06
申请人： Shinji Fujita , Youichi Matsumoto , Yasuo Murakami , Nobuaki Mitamura , Shigeru Okita
发明人： Shinji Fujita , Youichi Matsumoto , Yasuo Murakami , Nobuaki Mitamura , Shigeru Okita
IPC分类号： F16C33/58 , F16C33/32 , F16C33/00
CPC分类号： F16C33/30 , F16C33/62
摘要： A rolling bearing intended for longer life by improving seizure resistance and wear resistance in the circumstance with slip contact or in the circumstance where lubricant tends to be exhausted, which is manufactured by applying carburization or carbonitridation to an Si-added material to disperse and precipitate carbides or carbonitrides containing Si or Si—X (X=one or more of Mn, Mo, and Cr) thereby improving the seizure resistance and the wear resistance by the self-lubrication effect thereof, the size of the carbides or carbonitrides being preferably 10 μm or less for preventing flaking, and the area ratio for the carbides or carbonitrides being preferably 1.0–30% for obtaining sufficient self-lubrication effect.

9. 发明授权

US5989694A Rolling bearing 失效
标题翻译：滚动轴承
公开(公告)号：US5989694A
公开(公告)日：1999-11-23
申请号：US877950
申请日：1997-06-17
申请人： Nobuaki Mitamura , Kazuo Sekino , Yasuo Murakami
发明人： Nobuaki Mitamura , Kazuo Sekino , Yasuo Murakami
IPC分类号： C22C38/22 , F16C33/30 , F16C19/49
CPC分类号： C22C38/22 , F16C33/30 , F16C33/62 , Y10S148/906 , Y10S384/907 , Y10S384/912 , Y10S384/913 , Y10T428/24942 , Y10T428/24983 , Y10T428/25
摘要： Disclosed is a rolling bearing comprising races and rolling elements, in which at least one of the races and the rolling elements has at least one of a carbide and a carbonitride precipitated in a surface layer thereof, inclusive of a cutting allowance, wherein the finished surface of at least one of the races and the rolling elements has a hardness of Hv600 to Hv700 at 300.degree. C. The rolling bearing has reliable wear resistance under severe conditions and thereby having an extended bearing life.
摘要翻译：公开了一种滚动轴承，其包括种族和滚动元件，其中至少一个种类和滚动元件具有在其表面层中析出的碳化物和碳氮化物中的至少一种，包括切割余量，其中成品表面的至少一个座圈和滚动元件在300℃下具有Hv600至Hv700的硬度。滚动轴承在恶劣条件下具有可靠的耐磨性，从而具有延长的轴承寿命。

10. 发明授权

US5030017A Rolling bearing 失效
标题翻译：滚动轴承
公开(公告)号：US5030017A
公开(公告)日：1991-07-09
申请号：US557574
申请日：1990-07-24
申请人： Yasuo Murakami , Nobuaki Mitamura
发明人： Yasuo Murakami , Nobuaki Mitamura
IPC分类号： C23C8/22 , C23C8/32 , F16C33/30 , F16C33/62
CPC分类号： F16C33/30 , C23C8/22 , C23C8/32 , F16C33/62 , Y10S384/912 , Y10S384/913
摘要： A rolling bearing has races and a rolling element. At least one of the races and the rolling element is made of a carburized or carbonitrided alloy steel. The content of a fine carbide present in the surface layer of the one element of the rolling bearing is 20-50 vol %. The content of retained austenite in the surface layer is 10-25 vol %. The rolling bearing provides a long-life rolling bearing suitable for use in a transmission and engine.
摘要翻译：滚动轴承具有滚道和滚动体。至少一个座圈和滚动元件由渗碳或碳氮共渗合金钢制成。存在于滚动轴承的一个元件的表面层中的细小碳化物的含量为20〜50体积％。表面层中残留奥氏体的含量为10-25vol％。滚动轴承提供适用于变速箱和发动机的长寿命滚动轴承。

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