公开(公告)号：US06923576B2

公开(公告)日：2005-08-02

申请号：US10414308

申请日：2003-04-16

申请人： Susumu Tanaka ,  Shinji Fujita ,  Hideyuki Uyama ,  Nobuaki Mitamura

发明人： Susumu Tanaka ,  Shinji Fujita ,  Hideyuki Uyama ,  Nobuaki Mitamura

IPC分类号： C21D9/36 ,  C21D9/40 ,  C22C38/04 ,  C22C38/18 ,  C23C8/20 ,  C23C8/30 ,  F16C33/32 ,  F16C33/62

CPC分类号： F16C33/64 ,  C21D9/36 ,  C21D9/40 ,  C22C38/04 ,  C22C38/18 ,  C23C8/20 ,  C23C8/30 ,  F16C33/32 ,  F16C2204/64 ,  F16C2240/54 ,  F16C2240/76 ,  F16C2361/63 ,  F16C2361/65 ,  Y10S384/913

摘要： A rolling bearing has the radius of curvature of the raceway on an inner ring and an outer ring is from not smaller than 50.1% to not greater than 51.9% of the diameter of the balls, and at least one of the compositions of the bearing is obtained by forming an alloy steel having a carbon (C) content of from not smaller than 0.50% to not greater than 0.90%, a chromium (Cr) content of from not smaller than 3.0% to not greater than 15.0%, a manganese (Mn) content of from not smaller than 0.10% to not greater than 2.0%, a silicon (Si) content of from not smaller than 0.10% to not greater than 2.0%, a molybdenum (Mo) content of zero or not greater than 2.0% by weight, and a vanadium (V) content of zero or not greater than 2.0%, by weight.

摘要翻译： 滚动轴承在内圈上具有滚道的曲率半径，外圈的直径不小于球的直径的50.1％至不大于51.9％，并且轴承的组成中的至少一种为 通过形成碳（C）含量为0.50％以上且0.90％以下的合金钢，铬（Cr）含量为3.0％以上且15.0％以下的锰， Mn）含量为0.10％以上且2.0％以下，硅（Si）含量为0.10％以上且2.0％以下，钼（Mo）含量为0以上且2.0以下 重量％，钒（V）含量为零或不大于2.0％（重量）。

公开(公告)号：US20050141799A1

公开(公告)日：2005-06-30

申请号：US11035766

申请日：2005-01-14

申请人： Hideyuki Uyama ,  Yuuji Miyamoto ,  Shigeru Okita

发明人： Hideyuki Uyama ,  Yuuji Miyamoto ,  Shigeru Okita

IPC分类号： B60B27/00 ,  B60B27/02 ,  B60B35/18 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/18 ,  C22C38/24 ,  F16C19/18 ,  F16C33/62 ,  F16C33/64 ,  F16C13/00 ,  F16C41/04 ,  F16C32/00

CPC分类号： C22C38/28 ,  B60B27/00 ,  C21D9/40 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/24 ,  C22C38/26 ,  F16C19/185 ,  F16C19/186 ,  F16C33/64 ,  F16C2326/02 ,  Y10S384/913 ,  Y10T29/49679

摘要： In a wheel-support rolling bearing unit, in order to made a flange 6 thinner and thus lighten the bearing unit without impairing fatigue strength, machinability, and workability after forging, the composition of the alloy steel constituting the flange attached member (hub ring 2), the surface hardness of the root portion 14 on the axial outside surface side of the flange 6, and the surface roughness, are stipulated to thereby improve the durability ratio (fatigue limit strength/tensile strength) of the flange 6. In one aspect, the member is made from an alloy steel containing C: 0.5 to 0.65 weight %, Mn: 0.3 to 1.5 weight %, Si: 0.1 to 1.0 weight %, Cr: 0.01 to 0.5 weight %, S: 0.35 weight % or less, and any one type or more selected from 0.01 to 0.2 weight % of V, 0.01 to 0.15 weight % of Nb, and 0.01 to 0.15 weight % of Ti, with the rest being Fe and inevitable impurities, and the oxygen contents is 15 ppm or less. Moreover, the surface hardness of the inner raceway 7a formed with the hardened layer, is between Hv 650 and 780, and the surface hardness of a portion not formed with the hardened layer is between Hv 230 and 300.

摘要翻译： 在车轮支承滚动轴承单元中，为了使凸缘6更薄，从而减轻轴承单元，而不损害锻造后的疲劳强度，机械加工性和可加工性，构成凸缘连接构件（轮毂环2 ），规定法兰6的轴向外表面侧的根部14的表面硬度和表面粗糙度，从而提高凸缘6的耐久性（疲劳极限强度/拉伸强度）。 一方面，该构件由C：0.5〜0.65重量％，Mn：0.3〜1.5重量％，Si：0.1〜1.0重量％，Cr：0.01〜0.5重量％，S：0.35重量％ 以下，V：0.01〜0.2重量％，Nb：0.01〜0.15重量％，Ti：0.01〜0.15重量％，其余为Fe和不可避免的杂质，氧含量为 15ppm以下。 此外，形成有硬化层的内侧滚道7a的表面硬度为Hv650〜780，未形成硬化层的部分的表面硬度为Hv 230〜300。

公开(公告)号：US20060230856A1

公开(公告)日：2006-10-19

申请号：US11433423

申请日：2006-05-15

申请人： Shigeru Okita ,  Hideyuki Uyama ,  Susumu Tanaka ,  Kenichi Iso

发明人： Shigeru Okita ,  Hideyuki Uyama ,  Susumu Tanaka ,  Kenichi Iso

IPC分类号： F16H1/24

CPC分类号： F16C33/3706 ,  F16C29/06 ,  F16C33/32 ,  F16H25/2238 ,  F16H2025/2242 ,  F16H2025/249 ,  Y10T74/19777

摘要： A ball screw (1) as a linear motion device according to the invention has retaining pieces (21) each having two concave surfaces (23) facing adjacent ones of rolling elements (9) respectively. Each of the retaining pieces (21) is disposed between adjacent ones of the rolling elements (9). A carbonitrided layer containing residual austenite of 15-40% by volume is provided in the surface layer of each of the rolling elements (9).

摘要翻译： 作为根据本发明的直线运动装置的滚珠丝杠（1）具有分别具有面向相邻滚动体（9）的两个凹面（23）的保持片（21）。 每个保持片（21）设置在相邻的滚动元件（9）之间。 在各滚动体（9）的表面层设置含有15〜40体积％的残留奥氏体的碳氮共渗层。

公开(公告)号：US07004637B1

公开(公告)日：2006-02-28

申请号：US11035766

申请日：2005-01-14

申请人： Hideyuki Uyama ,  Yuuji Miyamoto ,  Shigeru Okita

发明人： Hideyuki Uyama ,  Yuuji Miyamoto ,  Shigeru Okita

IPC分类号： F16C13/00 ,  F16C43/00

CPC分类号： C22C38/28 ,  B60B27/00 ,  C21D9/40 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/24 ,  C22C38/26 ,  F16C19/185 ,  F16C19/186 ,  F16C33/64 ,  F16C2326/02 ,  Y10S384/913 ,  Y10T29/49679

摘要： In a wheel-support rolling bearing unit, in order to made a flange 6 thinner and thus lighten the bearing unit without impairing fatigue strength, machinability, and workability after forging, the composition of the alloy steel constituting the flange attached member (hub ring 2), the surface hardness of the root portion 14 on the axial outside surface side of the flange 6, and the surface roughness, are stipulated to thereby improve the durability ratio (fatigue limit strength/tensile strength) of the flange 6. In one aspect, the member is made from an alloy steel containing C: 0.5 to 0.65 weight %, Mn: 0.3 to 1.5 weight %, Si: 0.1 to 1.0 weight %, Cr: 0.01 to 0.5 weight %, S: 0.35 weight % or less, and any one type or more selected from 0.01 to 0.2 weight % of V, 0.01 to 0.15 weight % of Nb, and 0.01 to 0.15 weight % of Ti, with the rest being Fe and inevitable impurities, and the oxygen contents is 15 ppm or less. Moreover, the surface hardness of the inner raceway 7a formed with the hardened layer, is between Hv 650 and 780, and the surface hardness of a portion not formed with the hardened layer is between Hv 230 and 300.

摘要翻译： 在车轮支承滚动轴承单元中，为了使凸缘6更薄，从而减轻轴承单元，而不损害锻造后的疲劳强度，机械加工性和可加工性，构成凸缘连接构件（轮毂环2 ），规定法兰6的轴向外表面侧的根部14的表面硬度和表面粗糙度，从而提高凸缘6的耐久性（疲劳极限强度/拉伸强度）。 一方面，该构件由C：0.5〜0.65重量％，Mn：0.3〜1.5重量％，Si：0.1〜1.0重量％，Cr：0.01〜0.5重量％，S：0.35重量％ 以下，V：0.01〜0.2重量％，Nb：0.01〜0.15重量％，Ti：0.01〜0.15重量％，其余为Fe和不可避免的杂质，氧含量为 15ppm以下。 此外，形成有硬化层的内侧滚道7a的表面硬度为Hv650〜780，未形成硬化层的部分的表面硬度为Hv 230〜300。

公开(公告)号：US06828041B2

公开(公告)日：2004-12-07

申请号：US10069076

申请日：2002-02-21

申请人： Koji Ueda ,  Hideyuki Uyama ,  Tsuyoshi Saito

发明人： Koji Ueda ,  Hideyuki Uyama ,  Tsuyoshi Saito

IPC分类号： B32B1500

CPC分类号： F16C33/44 ,  C23C8/02 ,  C23C8/10 ,  F16C19/06 ,  F16C33/303 ,  F16C33/32 ,  F16C33/414 ,  F16C33/62 ,  F16C2202/20 ,  F16C2204/42 ,  F16C2240/54 ,  F16C2240/64 ,  F16C2360/45 ,  Y10T428/12576 ,  Y10T428/12611 ,  Y10T428/12806 ,  Y10T428/12993 ,  Y10T428/265

摘要： The bearing rings 1 and 2 of a rolling bearing is formed of one kind of titanium alloys of &bgr; type titanium alloys, near &bgr; type titanium alloys and &agr;+&bgr; type titanium alloys. The titanium alloy has a surface hardness of Hv 400 or more and less than Hv 600 for increasing the corrosion resistance and wear resistance of the bearing ring. Spherical rolling elements 3 rolling on the raceway surfaces 1a and 2a of the bearing rings 1 and 2 are formed of ceramics such as silicon nitride. When &bgr; type titanium alloys or &agr;+&bgr; type titanium alloys after a solution treatment and applied with an oxidation treatment at a low temperature of 400 to 600° C. are used as the material for the bearing ring, a bearing ring made of titanium alloy suitable to use under a circumstance requiring corrosion resistance is obtained.

摘要翻译： 滚动轴承的轴承圈1和2由β型钛合金，近β型钛合金和α+β型钛合金的一种钛合金形成。 钛合金的表面硬度为Hv 400以上且小于Hv 600，用于提高轴承圈的耐腐蚀性和耐磨性。 在轴承圈1和2的滚道表面1a和2a上滚动的球形滚动元件3由诸如氮化硅的陶瓷形成。 使用β型钛合金或α+β型钛合金进行固溶处理后，在400〜600℃的低温下进行氧化处理，作为轴承圈的材料，由钛合金制成的轴承圈 适合在需要耐腐蚀的环境下使用。