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    Ball bearing and hybrid vehicle transmission
    4.
    发明授权
    Ball bearing and hybrid vehicle transmission 有权
    滚珠轴承和混合动力车辆传动

    公开(公告)号：US08523450B2

    公开(公告)日：2013-09-03

    申请号：US13059077

    申请日：2009-12-10

    申请人： Takeshi Maejima ,  Takanori Tanaka ,  Kinji Yukawa ,  Youichi Matsumoto

    发明人： Takeshi Maejima ,  Takanori Tanaka ,  Kinji Yukawa ,  Youichi Matsumoto

    IPC分类号： F16C33/41

    CPC分类号： F16C33/38 ,  B60K6/26 ,  F16C33/416 ,  F16C33/418 ,  F16C33/6637 ,  F16C33/6681 ,  F16C2361/61 ,  F16C2361/65

    摘要： A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing.

    摘要翻译： 滚珠轴承包括具有滚道面的内圈，具有滚道面的外圈，可滚动地设置在内圈的滚道面与外圈的滚道面之间的多个滚动体，以及树脂保持架， 将多个滚动元件保持在内圈和外圈之间。 保持架是冠形保持架，其具有环形基部和形成在环形基部的轴向端面中的多个袋，其中袋保持滚动元件。 保持架的重心的轴向位置和每个凹部的球形或圆柱形内表面的曲率中心之间的轴向距离是内表面的曲率半径的0.6倍或更多倍。 混合动力车辆变速器具有该球轴承。

    Bearing steel,method for evaluating large-sized inclusions in the steel and rolling bearing
    5.
    发明申请
    Bearing steel,method for evaluating large-sized inclusions in the steel and rolling bearing 审中-公开
    轴承钢，钢和滚动轴承大型夹杂物的评估方法

    公开(公告)号：US20060048576A1

    公开(公告)日：2006-03-09

    申请号：US10498876

    申请日：2003-01-17

    申请人： Akihiro Kiuchi ,  Yutaka Ishii ,  Youichi Matsumoto ,  Masaru Kawabe ,  Hiroshi Narai ,  Naoko Yokoyama

    发明人： Akihiro Kiuchi ,  Yutaka Ishii ,  Youichi Matsumoto ,  Masaru Kawabe ,  Hiroshi Narai ,  Naoko Yokoyama

    IPC分类号： G01M13/04 ,  F16C19/00

    CPC分类号： G01N29/11 ,  F16C33/12 ,  F16C33/30 ,  F16C2204/60 ,  G01N29/2456 ,  G01N29/265 ,  G01N29/28 ,  G01N2291/014 ,  G01N2291/0234 ,  G01N2291/02836 ,  G01N2291/0421 ,  G01N2291/0422 ,  G01N2291/101 ,  G01N2291/2696

    摘要： A first object is to provide a method for evaluating large-sized inclusions in a bearing steel. The method enables quantitative evaluation of large-sized inclusions even if the steel has a high degree of cleanliness. Further, a second object is to provide an appropriate bearing steel evaluated by the method for evaluating large-sized inclusions. Further, a third object is to provide a rolling bearing capable of eliminating short life products and cracked products and providing longer lifetime for entire bearings. In order to achieve the first object, a round bar formed of a bearing steel to be evaluated and an ultrasonic probe are placed in an ultrasonic transmission medium, and the size and number of large-sized inclusions that are present in the flaw detection volume are measured to estimate the existence probability of large-sized inclusions in the bearing steel to be evaluated. The second object is achieved by specifying large-sized inclusions that are present in the bearing steel in accordance with the method for evaluating large-sized inclusions. Further, to achieve the third object, a rolling bearing is manufactured from a seamless steel tube, as material, having a diameter of 180 mm or less and a wall thickness of 25 mm or less, and ensured that it does not include a defect having a length of 1 mm of more at its material stage.

    摘要翻译： 第一个目的是提供一种用于评估轴承钢中的大尺寸夹杂物的方法。 该方法能够对大尺寸夹杂物进行定量评价，即使钢具有高度的清洁度。 此外，第二个目的是提供通过用于评估大尺寸夹杂物的方法评估的合适的轴承钢。 此外，第三个目的是提供一种能够消除短寿命产品和破裂产品并为整个轴承提供更长寿命的滚动轴承。 为了实现第一个目的，将由待评估的轴承钢形成的圆棒和超声波探头放置在超声波传播介质中，并且存在于探伤体积中的大尺寸夹杂物的尺寸和数量是 测量以评估待评估的轴承钢中大尺寸夹杂物的存在概率。 第二个目的是通过根据用于评估大尺寸夹杂物的方法来指定存在于轴承钢中的大尺寸夹杂物来实现的。 此外，为了实现第三个目的，一种滚动轴承由直径为180mm以下且壁厚为25mm以下的无缝钢管作为材料制造，并且确保不包括具有 在其材料阶段的长度为1毫米。

    Ball-and-roller bearing system
    7.
    发明授权
    Ball-and-roller bearing system 失效
    滚珠轴承系统

    公开(公告)号：US4904094A

    公开(公告)日：1990-02-27

    申请号：US225899

    申请日：1988-07-29

    申请人： Kyozaburo Furumura ,  Yasuo Murakami ,  Youichi Matsumoto ,  Kenji Takei ,  Takaaki Shiratani ,  Soji Nishida

    发明人： Kyozaburo Furumura ,  Yasuo Murakami ,  Youichi Matsumoto ,  Kenji Takei ,  Takaaki Shiratani ,  Soji Nishida

    IPC分类号： C21D1/78 ,  C23C8/22 ,  C23C8/32 ,  F16C33/30 ,  F16C33/44 ,  F16C33/56 ,  F16C33/62 ,  F16C33/64

    CPC分类号： C23C8/22 ,  C21D1/78 ,  F16C33/30 ,  F16C33/62 ,  F16C33/64 ,  C21D2211/001 ,  Y10S148/90

    摘要： A rolling bearing, comprising an inner race, an outer race and rolling members which roll therebetween, at least one of the inner and outer races being subjected to carburizing and heating treatment, is characterized in that:the one race comprises a carbon steel containing 0.1 to 0.7 wt. % of carbon, with the residual austenite content on the track surface layer being 20 to 45 vol. % and the rolling members comprise a carbon steel containing 0.7 to 1.1 wt. % of carbon having carbonitriding and heating treatment applied on the surface layer, with the residual austenite content in such surface layer being 20 to 45 vol. % and the carbonitride in such surface being 3 to 15 vol. %.In another form of the bearing, the rolling members may comprise a carbon steel containing 0.1 to 0.7 wt. % of carbon, with the surface layers thereof being subjected to carburizing and heating treatment and having a residual austenite content of 20 to 45 vol. %.

    摘要翻译： 一种滚动轴承，其特征在于，包括内圈，外圈和在其间滚动的滚动构件，所述内圈和外圈中的至少一个进行渗碳和加热处理，其特征在于，所述一个座圈包括含有0.1 至0.7重量％ ％的碳，轨道表面层上的残余奥氏体含量为20〜45体积％。 ％，并且轧制构件包括含有0.7〜1.1重量％的碳钢。 在表面层上施加碳氮共渗和加热处理的碳的％，其表面层的残余奥氏体含量为20〜45体积％。 ％，该表面碳氮化物为3〜15体积％。 ％。 在另一种形式的轴承中，滚动件可以包括含有0.1-0.7wt。 碳的％，其表面层进行渗碳和加热处理，残余奥氏体含量为20〜45体积％。 ％。

    Life predicting method for rolling bearing, life predicting device, rolling bearing selecting device using life predicting device, program and environment coefficient determining method
    9.
    发明授权
    Life predicting method for rolling bearing, life predicting device, rolling bearing selecting device using life predicting device, program and environment coefficient determining method 失效
    滚动轴承寿命预测方法，寿命预测装置，使用寿命预测装置的滚动轴承选择装置，程序和环境系数确定方法

    公开(公告)号：US07305330B2

    公开(公告)日：2007-12-04

    申请号：US10493245

    申请日：2002-10-24

    申请人： Seigou Urakami ,  Youichi Matsumoto ,  Yasuo Murakami

    发明人： Seigou Urakami ,  Youichi Matsumoto ,  Yasuo Murakami

    IPC分类号： G06G7/48 ,  G06F7/60

    CPC分类号： F16C19/00

    摘要： To predict a correction rated life at high accuracy. A life predicting device executes step S1, step S2, step S4 for inputting specification information including a basic dynamic rated load C and basic static rated load C0, step 5 for computing a dynamic equivalent load P based on the specification information. step S3 for setting a reliability factor a1, step S7 and step S8 for determining a contact ellipse area S, step S9 for inputting a foreign substance purchasing diameter ddebris (“debris” means “foreign substance”), step 10 for determining a standardized foreign substance diameter (ddebris/√ S), step S11 for setting a life correction coefficient axyz based on the standardized foreign substance diameter, and step S6 and step S12 for calculating a correction rated life Lnm based on the reliability coefficient, the life correction coefficient, the basic dynamic rated load and the dynamic equivalent load and the like.

    摘要翻译： 以高精度预测校正额定寿命。 寿命预测装置执行步骤S1，步骤S2，步骤S4，用于输入包括基本动态额定负载C和基本静态额定负荷C 0的规定信息，步骤5用于计算动态等效负载 P根据规格信息。 步骤S 3，用于设定可靠性因子α1，步骤S7和步骤S8，用于确定接触椭圆区域S;步骤S 9，用于输入异物购买直径d < SUB“（”碎片“是指”异物“），用于确定标准化异物直径的步骤10（d / S）），用于设定寿命校正系数a 基于标准化异物直径的xyz ，以及用于基于可靠性系数，寿命校正系数，基本动力学来计算校正额定寿命L SUB nm的步骤S 6和步骤S 12 额定负载和动态等效负载等。