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。

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。

公开(公告)号：US06770152B1

公开(公告)日：2004-08-03

申请号：US09830212

申请日：2001-04-24

申请人： Shigeru Okita ,  Akihiro Kiuchi ,  Hiromichi Takemura ,  Tomonobu Yoshikawa

发明人： Shigeru Okita ,  Akihiro Kiuchi ,  Hiromichi Takemura ,  Tomonobu Yoshikawa

IPC分类号： C22C3822

CPC分类号： C22C38/02 ,  C21D1/18 ,  C21D1/25 ,  C21D6/04 ,  C21D9/36 ,  C21D9/38 ,  C21D9/40 ,  C21D2211/001 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/04 ,  C22C38/22 ,  C22C38/34 ,  C23C8/32 ,  C23C8/80 ,  F16C33/62 ,  Y10S148/906

摘要： The present invention provides a rolling bearing having high wear resistance at high temperature and with reduced manufacturing cost. At least one of an inner ring, an outer ring and rolling elements is formed of the following steel material into a predetermined shape, then applied with hardening and tempering at a temperature of 240° C. or higher or 350° C. or lower to make the Vickers hardness (Hv) on the raceway surface and/or rolling surface to 720 or more. The steel material contains, as the alloy ingredient, 0.8% by weight or more and 1.2% by weight or less of C, 0.5% by weight or more and 2.5% by weight or less of Si, 0.7% by weight or more and 1.5% by weight or less of Cr, 0.8% by weight or more and 2.0% by weight or less of Mo and 0.3% by weight or more and 1.2% by weight or less of Mn, with a ratio of Mo to Cr (Mo/Cr: weight ratio) of 1.1 or more.

摘要翻译： 本发明提供一种在高温下具有高耐磨性且降低制造成本的滚动轴承。 内圈，外圈和滚动元件中的至少一个由以下钢材形成为预定形状，然后在240℃以上或350℃以下的温度下进行淬火回火 使维氏硬度（Hv）在滚道表面和/或滚动面上达到720以上。 钢材含有0.8重量％以上且1.2重量％以下的C，0.5重量％以上且2.5重量％以下的Si，0.7重量％以上且1.5以下 重量％以下的Cr，0.8重量％以上且2.0重量％以下的Mo和0.3重量％以上且1.2重量％以下的Mn，Mo与Cr的比例（Mo / Cr：重量比）为1.1以上。

公开(公告)号：US06666792B2

公开(公告)日：2003-12-23

申请号：US10223334

申请日：2002-08-16

申请人： Tomonobu Yoshikawa

发明人： Tomonobu Yoshikawa

IPC分类号： F16H1538

CPC分类号： F16H15/38 ,  C23C8/22 ,  C23C8/32 ,  C23C8/80

摘要： A toroidal continuously variable transmission is characterized by comprising an input disk, an output disk, trunnions, power rollers, and thrust rolling-element bearing, in which at least one of the input disk, output disk and power rollers of a power roller bearing is formed of an alloy steel and subjected to either carburizing processing and polishing or carbonitriding processing and polishing, and at least one of the input disk, output disk and the inner ring of the power roller bearing has an efficient hardened layer of Hv 653, which has a depth of 2.0 mm or more and 4.00 mm or less from the surface.

公开(公告)号：US06659909B2

公开(公告)日：2003-12-09

申请号：US10194676

申请日：2002-07-11

申请人： Shigeru Okita ,  Tomonobu Yoshikawa ,  Yutaka Ishii

发明人： Shigeru Okita ,  Tomonobu Yoshikawa ,  Yutaka Ishii

IPC分类号： F16H5532

CPC分类号： C21D9/0068 ,  C21D1/18 ,  F16H15/38

摘要： A toroidal continuously variable transmission system of the present invention is provided with an input disk, an output disk and power rollers. The input and output disks have traction surfaces defined between a small-diameter portion and a large-diameter portion and having an arc-shaped concave section. The input and output disks are coaxially arranged in such a manner that the traction surfaces face each other. The power roller are frictionally engagement with the traction surfaces of the input and output disks and transmit a driving force. At least one of the input disk, the output disk and the power rollers is formed of an alloy steel which contains 0.15 to 2.0% by weight of Mo. The alloy steel is subjected first to carburization or carbonitriding processing executed at a temperature not lower than 1,000° C., and then to hardening and tempering. The alloy steel has a surface carbon content of 0.8 to 1.4%.

摘要翻译： 本发明的环形无级变速器系统设置有输入盘，输出盘和动力辊。 输入和输出盘具有限定在小直径部分和大直径部分之间并具有弧形凹部的牵引表面。 输入和输出盘以这样的方式同轴布置，使得牵引表面彼此面对。 动力辊与输入和输出盘的牵引表面摩擦接合并传递驱动力。 输入盘，输出盘和动力辊中的至少一个由含有0.15〜2.0重量％的Mo的合金钢形成。合金钢首先进行渗碳或碳氮共渗处理，其温度不低于 1000℃，然后进行硬化和回火。 合金钢的表面碳含量为0.8〜1.4％。

公开(公告)号：US06626795B2

公开(公告)日：2003-09-30

申请号：US10050947

申请日：2002-01-22

申请人： Tomonobu Yoshikawa

发明人： Tomonobu Yoshikawa

IPC分类号： F16H1538

CPC分类号： F16C33/44 ,  F16C19/10 ,  F16H15/38

摘要： The toroidal-type continuously variable transmission comprises an input shaft, an input disk, an output disk, a plurality of trunnions, a plurality of power rollers, and power roller bearings, wherein the mutually opposed inner surfaces of the input and output disks are respectively formed as concave surfaces each having an arc-shaped section, the peripheral surfaces of the power rollers are respectively formed as spherical-shaped convex surfaces, and these peripheral surfaces are contacted with the above-mentioned inner surfaces. The retainer of the power roller bearing is formed of high strength brass, and the high strength brass has a micro structure in which the &agr; phase thereof is 40% or more in the area ratio thereof, and the hardness of said retainer is set at HB80 or higher.

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。

公开(公告)号：US06165289A

公开(公告)日：2000-12-26

申请号：US835746

申请日：1997-04-10

申请人： Yoichi Matsumoto ,  Tomonobu Yoshikawa ,  Takashi Nagato

发明人： Yoichi Matsumoto ,  Tomonobu Yoshikawa ,  Takashi Nagato

IPC分类号： C22C38/16 ,  F16C33/30 ,  F16C33/62

CPC分类号： F16C33/62 ,  C22C38/16 ,  F16C33/30 ,  F16C2204/60 ,  Y10S148/906 ,  Y10S384/912

摘要： A water-resistant and long-life rolling bearing used in an environment involving water's seeping in the lubricant thereof, wherein at least one of the inner race, the outer race, and the rolling member is formed of alloy steel containing 0.05 to 0.60% by weight of Cu, 0.10 to 1.10% by weight of C, and 0 to 0.2% by weight of Nb or V. The alloy steel has functions of reducing hydrogen evolution on the surface thereof and of forming a film hardly permeable to hydrogen thereby to retard occurrence of flaking due to hydrogen-induced brittleness.

摘要翻译： 一种用于在其润滑剂中渗水的环境中使用的耐水长寿命滚动轴承，其中内圈，外圈和滚动构件中的至少一个由合金钢形成，所述合金钢含有0.05-0.60％ Cu的重量，0.10〜1.10重量％的C和0〜0.2重量％的Nb或V.该合金钢具有降低其表面的析氢和形成几乎不渗透氢的膜的功能，从而延迟 由于氢诱发的脆性而产生剥落。

公开(公告)号：US06746365B2

公开(公告)日：2004-06-08

申请号：US09987080

申请日：2001-11-13

申请人： Tomonobu Yoshikawa ,  Yasuo Murakami

发明人： Tomonobu Yoshikawa ,  Yasuo Murakami

IPC分类号： F16H1538

CPC分类号： F16C33/62 ,  F16C19/10 ,  F16H15/38 ,  F16H55/32

摘要： The toroidal-type continuously variable transmission comprises an input shaft rotatably supported, an input side disk, an output side disk, a plurality of trunnions, a plurality of power rollers, and a plurality of thrust rolling bearings 32, in which the mutually opposed inner surfaces of the input side and output side disks are respectively formed as concave surfaces each having an arc-shaped section, the peripheral surfaces of the power rollers are formed as spherical-shaped convex surfaces, and the peripheral surfaces of the power rollers are contacted with the inner surfaces of the input side and output side disks. In the thus structured toroidal-type continuously variable transmission, each of the thrust rolling bearings 32 is made of high carbon chromium bearing steel and is also carbonitrided.

摘要翻译： 环形无级变速器包括可旋转地支撑的输入轴，输入侧盘，输出侧盘，多个耳轴，多个动力辊和多个推力滚动轴承32，其中相互相对的内部 输入侧和输出侧盘的表面分别形成为具有弧形部分的凹面，动力辊的周面形成为球形凸面，并且动力辊的周面与 输入侧和输出侧盘的内表面。 在这样构造的环形无级变速器中，每个推力滚动轴承32由高碳铬轴承钢制成，也是碳氮共渗的。

公开(公告)号：US06440233B2

公开(公告)日：2002-08-27

申请号：US09817250

申请日：2001-03-27

申请人： Shigeru Okita ,  Susumu Tanaka ,  Tomonobu Yoshikawa

发明人： Shigeru Okita ,  Susumu Tanaka ,  Tomonobu Yoshikawa

IPC分类号： C12D936

CPC分类号： F16C33/62 ,  C21D9/40 ,  C23C8/32 ,  Y10S148/906

摘要： An inner ring and an outer ring are composed as follows. These members are fabricated with a steel for bearing containing carbon 0.6 wt % or higher. A carbonitrided layer is formed in a raceway surface. The amount of residual austenite at a position of 2% Da depth in the raceway surface is determined to be 1.0 vol % or lower. Hardness at the position of 2% Da depth is set to be HRC58 or more. Nitrogen content (Np) at the position of 2% Da depth is 0.05 wt % or more. A multiple Gd of an impression resistance expressed with the following formula (1) is 1.6 or more, Gd=(H0.2/500)+2·Np  (1), wherein in the formula, H0.2 is meant by Vickers hardness at the position of 2% Da depth.

摘要翻译： 内环和外圈组成如下。 这些构件用含有0.6重量％以上的碳的轴承的钢制成。 在轨道表面形成碳氮共渗层。 轨道面中2％Da深度位置处的残余奥氏体量为1.0体积％以下。 2％Da深度位置的硬度为HRC58以上。 2％Da深度位置的氮含量（Np）为0.05重量％以上。 用下式（1）表示的耐冲击强度的多重Gd为1.6以上，其中，在式中，H0.2是指在2％Da深度的位置处的维氏硬度。