公开(公告)号：US20050117827A1

公开(公告)日：2005-06-02

申请号：US10501213

申请日：2003-01-09

申请人： Osamu Fujii ,  Takashi Murai ,  Kenji Kotaki ,  Yukio Ooura

发明人： Osamu Fujii ,  Takashi Murai ,  Kenji Kotaki ,  Yukio Ooura

IPC分类号： F16C19/34 ,  F16C19/40 ,  F16C33/36 ,  F16C33/46 ,  F16C33/54 ,  F16C43/06

CPC分类号： F16C33/36 ,  F16C19/362 ,  F16C19/40 ,  F16C33/3706 ,  F16C33/4617 ,  F16C43/06 ,  F16C2300/02 ,  Y02T10/865

摘要： To provide a rolling bearing in which a spin slippage between a rolling element and a raceway groove is suppressed, and a rolling resistance is reduced to make the torque lower, whereby the rolling elements are easily incorporated even when the bearing rings are the monolithic type. Also, to provide the rolling bearing in which the rolling elements are easily incorporated even in a state where the bearing rings of monolithic type and a retainer are assembled. After the outer and inner races and the retainer are assembled, a small groove 4 for rotating the rolling element is provided in the center of an inner raceway groove 3 within a raceway groove space. The retainer 6 is only provided in one axial pocket face 7b of a pocket 7, and the other face is opened.

摘要翻译： 为了提供一种滚动轴承，其中抑制了滚动元件和滚道槽之间的旋转滑动，并且降低了滚动阻力以使扭矩降低，由此即使在轴承圈是单片式的情况下也容易结合滚动元件。 此外，为了提供即使在组装有单片型和保持架的轴承环的状态下也容易并入滚动元件的滚动轴承。 在组装外圈和内座圈和保持器之后，在滚道槽空间内的内滚道槽3的中心设置有用于旋转滚动元件的小槽4。 保持器6仅设置在口袋7的一个轴向袋面7b中，另一个面打开。

公开(公告)号：US06481898B1

公开(公告)日：2002-11-19

申请号：US09601956

申请日：2000-08-10

申请人： Kenji Yakura ,  Hirotoshi Aramaki ,  Yukio Ooura ,  Akio Fujii ,  Sumio Sugita ,  Dai Kinno ,  Shoji Noguchi ,  Koji Ueda

发明人： Kenji Yakura ,  Hirotoshi Aramaki ,  Yukio Ooura ,  Akio Fujii ,  Sumio Sugita ,  Dai Kinno ,  Shoji Noguchi ,  Koji Ueda

IPC分类号： F16C3358

CPC分类号： F16C33/64 ,  F16C19/163 ,  F16C33/303 ,  F16C33/32 ,  F16C33/585 ,  F16C33/62 ,  F16C2240/76 ,  F16C2322/39

摘要： A ball bearing in which the heat value in an inner ring is decreased and the heat value in an outer ring is brought closer to the heat value in the inner ring by making the radius of curvature for the inner ring groove larger, and defining the radius of curvature for the outer ring groove as 50.5% to 53.0% of the ball diameter. The arrangement of the present invention suppresses the heat value in the entire ball bearing and extends the bearing life at a reduced cost without using a large flow rate lubrication method or a preloading method such as constant preloading. In addition, a decrease in heat generation, seizing resistance and wear resistance can be attained further by optimizing a relation between the raceway groove and the ball diameter, by optimizing the number of balls, by controlling the ingredient composition for the material of the bearing ring, and by forming a hard deposition film on the surface of the raceway groove. Thus, according to the present invention, a ball bearing having a long life is provided even during high speed rotation at a dmn value of 2,000,000 or more.

摘要翻译： 通过使内圈的曲率半径越大，内圈的热量越小，外圈的热量越接近内圈的热值越靠近， 的外圈槽的曲率为球直径的50.5％至53.0％。 本发明的结构抑制了整个滚珠轴承的热值，并且在不使用大流量润滑方法或诸如恒定预加载的预加载方法的情况下，以降低的成本延长了轴承寿命。 此外，通过优化滚珠的数量，通过控制用于轴承环的材料的成分组成，能够进一步优化滚道槽与滚珠直径之间的关系，从而进一步降低发热，耐咬合性和耐磨性 并且通过在滚道槽的表面上形成硬质沉积膜。 因此，根据本发明，即使在高速旋转期间，也具有寿命长的球轴承，其数值为2,000,000以上。

公开(公告)号：US06997617B2

公开(公告)日：2006-02-14

申请号：US10854262

申请日：2004-05-27

申请人： Yoshiro Ide ,  Masatake Ichimaru ,  Yukio Ooura ,  Yuko Kamamura

发明人： Yoshiro Ide ,  Masatake Ichimaru ,  Yukio Ooura ,  Yuko Kamamura

IPC分类号： F16C33/34

CPC分类号： F16C19/26 ,  F16C19/225 ,  F16C33/34 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/40 ,  F16C2240/50

摘要： A roller bearing includes an inner ring, an outer ring, a plurality of cylindrical rollers each provided between rolling contact surfaces of the inner ring and the outer ring. Each of the cylindrical rollers includes an end face having a peripheral part that is crowned. A flange portion is formed at an outer circumferential face end part of the inner ring and/or an inner circumferential face end part of the outer ring. The peripheral part is crowned in a curving shape represented by an exponential function of y=a·exp(−b·x); where a and b are constants, x is a distance from the rolling contact surface in a radial direction of the cylindrical roller, and y is a crowning fall-off amount from a central part of the end face of the cylindrical roller in an axial direction of the cylindrical roller.

摘要翻译： 滚子轴承包括内环，外圈，多个圆筒滚子，每个圆筒滚子均设置在内圈和外圈的滚动接触表面之间。 每个圆柱滚子包括具有凸起的周边部分的端面。 凸缘部形成在内圈的外周面端部和/或外圈的内周面端部。 周边部分以由y = a.exp（-b.x）的指数函数表示的弯曲形状加冠; 其中a和b是常数，x是从圆筒滚子的径向方向的滚动接触面的距离，y是从圆筒滚子的端面的轴向方向的中心部分的隆起脱落量 的圆柱滚子。

公开(公告)号：US06851864B2

公开(公告)日：2005-02-08

申请号：US10374058

申请日：2003-02-27

申请人： Hisashi Kawamura ,  Yukio Ooura ,  Mineo Kameko

发明人： Hisashi Kawamura ,  Yukio Ooura ,  Mineo Kameko

IPC分类号： F16C19/16 ,  F16C33/32 ,  F16C33/60 ,  F16C33/62

CPC分类号： F16C19/163 ,  F16C33/32 ,  F16C33/60 ,  F16C33/62 ,  Y10S384/913

摘要： A bearing with a ball contact with a raceway groove of one of an outer ring and an inner ring at one point and the other at two points. The surface of the ball and the surface of the race of the outer ring and the race of the inner ring were provided with a phosphorus-based modified layer. The ball bearing is at a rotary speed as high as not lower than 70 m/s as calculated in terms of V and a load as small as not greater than 0.05 as calculated in terms of Pr/Cr supposing that the dynamic equivalent radial load is Pr, the basic dynamic rated load is Cr, one of the inner ring and the outer ring is a driving ring and the slip rate of the ball to the one of the inner ring and the outer ring as a driving ring is V.

摘要翻译： 一个轴承与一个外圈和一个内圈的滚道槽在一个点接触，另一个在两点接触。 球的表面和外圈的外圈表面和内圈的外圈设置有磷基改性层。 滚珠轴承的旋转速度高达不低于70m / s，以V计算，并且根据Pr / Cr计算的小于0.05的负载，假定动态等效径向载荷为 Pr，基本动态额定载荷为Cr，内环和外圈之一为驱动环，作为驱动环的内圈和外圈之一的球的滑移率为V.