公开(公告)号：US20100172607A1

公开(公告)日：2010-07-08

申请号：US12733408

申请日：2008-08-29

申请人： Kazuyoshi Yamakawa ,  Masahiro Suzuki ,  Takashi Sada ,  Kazuya Suzuki ,  Naoki Tani

发明人： Kazuyoshi Yamakawa ,  Masahiro Suzuki ,  Takashi Sada ,  Kazuya Suzuki ,  Naoki Tani

IPC分类号： F16C33/58 ,  B21D53/10

CPC分类号： F16C33/60 ,  F16C9/04 ,  F16C33/51 ,  F16C35/067 ,  F16C2360/22 ,  Y10T29/4968

摘要： To provide a bearing structure in which the processing is easy, and the manufacturing cost can be reduced.A bearing structure 1 includes a housing comprising a first housing portion 13 having a cross-sectionally generally-semicircular concave portion and a second housing portion 14 having a cross-sectionally generally-semicircular concave portion forming together with the concave portion 13a of the first housing portion 13 a cross-sectionally generally-circular support hole 16, and a two-division rolling bearing 2 comprising a pair of two-division outer rings 3a, 3b mounted within the support hole 16 of the housing in closely-contacted relation thereto, a plurality of rolling elements 4 so mounted as to be able to roll on inner side surfaces of the two two-division outer rings 3a, 3b, and a pair of two-division cages 5a, 5b holding the rolling elements 4 such that the rolling elements are arranged at generally equal intervals in a circumferential direction, a shaft 12 being internally fitted to the two-division rolling bearing. A bore diameter of the support hole 16 in a direction of mating surfaces of the housing portions is made larger than its bore diameter in a direction shifted 90° from the direction of the mating surfaces.

摘要翻译： 提供加工容易的轴承结构，并且可以降低制造成本。 轴承结构1包括壳体，该壳体包括具有横截面大致半圆形的凹部的第一壳体部分13和具有与第一壳体的凹部13a一起形成的横截面大致半圆形的凹部的第二壳体部分14 部分13是横截面的大致圆形的支撑孔16，以及两部分滚动轴承2，其包括一对以分开的紧密接触的关系安装在壳体的支撑孔16内的两分割外圈3a，3b， 多个滚动元件4被安装成能够在两个两分割外圈3a，3b的内侧表面上滚动;以及一对保持滚动元件4的两个分开的保持架5a，5b，使得滚动元件 在圆周方向上以大致相等的间隔布置，轴12内部配合到两分割滚动轴承。 在壳体部分的配合表面的方向上，支撑孔16的孔直径比其配合表面方向偏移90°的方向的孔直径大。

公开(公告)号：US20110064350A1

公开(公告)日：2011-03-17

申请号：US12736880

申请日：2009-05-18

申请人： Kazuyoshi Yamakawa ,  Junji Murata ,  Toshiyuki Saito ,  Takashi Sada ,  Naoki Tani

发明人： Kazuyoshi Yamakawa ,  Junji Murata ,  Toshiyuki Saito ,  Takashi Sada ,  Naoki Tani

IPC分类号： F16C33/60

CPC分类号： F16C9/02 ,  F16C19/466 ,  F16C33/60 ,  F16C2240/46

摘要： There are provided a split outer ring which can suppress the reduction in durability and which can suppress largely the generation of noise or vibration which is caused in association with the passage of rolling elements over a mating surface and a split rolling bearing which employs the same outer ring.A split outer ring 2 according to the invention has first and second split outer ring members 5, 6 which are formed into a cylindrical shape by being butted against each other at circumferential end portions. First flat plane portions 7 and a V-shaped recess portion 8 which is recessed in a circumferential direction are formed at one end portion 5a of the circumferential end portions which are butted against each other. Secondary flat plane portions 9 which are to be brought into abutment with the first flat plane portions 7 and a projecting portion 10 which projects in the circumferential direction from the second flat plane portion 9 so as to be introduced into the recess portion 8 are formed at an end portion 6a which is to be butted against the end portion 5a. A space S is formed between the recess portion 8 and the projecting portion 10 so as to avoid a contact between a bottom portion 8b of the recess portion 8 and a vertex portion 10b of the projecting portion 10.

摘要翻译： 提供了一种能够抑制耐久性降低的分割外圈，并且能够大大抑制与滚动体在配合面上的通过相关联的噪音或振动的产生以及采用相同外部的分离滚动轴承 环。 根据本发明的分割外圈2具有通过在周向端部彼此对接而形成为圆筒形的第一和第二分割外圈构件5,6。 第一平面部7和在圆周方向上凹陷的V形凹部8形成在彼此对接的周向端部的一个端部5a处。 要与第一平面部分7抵接的次平面部分9和从第二平面部分9沿圆周方向突出以引入凹部8的突出部分10形成在 与顶端部5a抵接的端部6a。 在凹部8与突出部10之间形成有空间S，以避免凹部8的底部8b与突出部10的顶点10b的接触。

公开(公告)号：US08894292B2

公开(公告)日：2014-11-25

申请号：US12736880

申请日：2009-05-18

申请人： Kazuyoshi Yamakawa ,  Junji Murata ,  Toshiyuki Saito ,  Takashi Sada ,  Naoki Tani

发明人： Kazuyoshi Yamakawa ,  Junji Murata ,  Toshiyuki Saito ,  Takashi Sada ,  Naoki Tani

IPC分类号： F16C33/58 ,  F16C33/60 ,  F16C19/46 ,  F16C9/02

CPC分类号： F16C9/02 ,  F16C19/466 ,  F16C33/60 ,  F16C2240/46

摘要： A split outer ring of a split rolling bearing, which splits in a radial direction, includes a pair of split outer ring members which are each formed into a semi-cylindrical shape and which are formed into a cylindrical shape by being butted against each other at circumferential end portions. A pair of first flat plane portions which extend from both axial end edges of the end portions towards a center in parallel with an axis and a V-shaped recess portion, positioned between the first flat plane portions and is recessed in a circumferential direction relative to the pair of first flat plane portions, are formed at one end portion of the circumferential end portions which are butted against each other, and a pair of second flat plane portions which extend from the both axial end edges in parallel with the axis.

摘要翻译： 分裂滚动轴承的分割外圈沿径向方向分开，包括一对分开的外圈构件，它们分别形成为半圆柱形并通过彼此对接地形成为圆柱形状 圆周端部。 一对第一平面部分，其从所述端部的两个轴向端边缘延伸到与轴线平行的中心和V形凹部，所述第一平面部分位于所述第一平面部分之间并相对于所述第一平面部分在圆周方向上凹陷 一对第一平面部分形成在彼此对接的周向端部的一个端部处，并且一对第二平面部分从两个轴向端部边缘平行于轴线延伸。

公开(公告)号：US08523452B2

公开(公告)日：2013-09-03

申请号：US12733408

申请日：2008-08-29

申请人： Kazuyoshi Yamakawa ,  Takashi Sada

发明人： Kazuyoshi Yamakawa ,  Takashi Sada

IPC分类号： F16C33/58 ,  F16C19/00

CPC分类号： F16C33/60 ,  F16C9/04 ,  F16C33/51 ,  F16C35/067 ,  F16C2360/22 ,  Y10T29/4968

摘要： A bearing structure includes a housing including a first housing portion and a second housing portion forming together with the first housing portion, a cross-sectionally generally-circular support hole, and a rolling bearing including a pair of outer rings mounted within the support hole of the housing in closely-contacted relation thereto, a plurality of rolling elements mounted to be able to roll on inner side surfaces of the pair of outer rings, and a pair of cages holding the rolling elements. The first housing portion and the second housing portion are mounted in an offset relation to each other in a radial direction so that at mating surfaces of circumferential end portions of the pair of outer rings, the outer ring end portions disposed at an upstream side with respect to a direction of rotation of the shaft form radially inwardly-projecting steps, respectively.

摘要翻译： 轴承结构包括壳体，该壳体包括第一壳体部分和与第一壳体部分一起形成的第二壳体部分，横截面为大致圆形的支撑孔，以及滚动轴承，其包括安装在支撑孔内的一对外圈 与其紧密接触的壳体，安装成能够在一对外圈的内侧表面上滚动的多个滚动元件，以及一对保持滚动元件的保持架。 第一壳体部分和第二壳体部分在径向上以彼此偏移的关系安装，使得在一对外圈的周向端部的配合表面处，外环端部设置在上游侧，相对于 分别向轴向旋转的方向形成径向向内突出的台阶。

公开(公告)号：US20090028486A1

公开(公告)日：2009-01-29

申请号：US12219348

申请日：2008-07-21

申请人： Takashi Sada ,  Hiroki Matsuyama

发明人： Takashi Sada ,  Hiroki Matsuyama

IPC分类号： F16C33/46

CPC分类号： F16C33/6681 ,  F16C19/364 ,  F16C33/543 ,  F16C33/547 ,  F16C2361/61 ,  F16H57/021 ,  F16H57/037 ,  F16H57/0471 ,  F16H57/0483

摘要： Guide grooves for guiding lubricating oil from a small rib-side end portion of an inner ring to a large rib-side end portion thereof are formed at an inner periphery of a cage.

摘要翻译： 用于将润滑油从内圈的小肋侧端部引导到大的肋侧端部的引导槽形成在保持架的内周。

公开(公告)号：US5997988A

公开(公告)日：1999-12-07

申请号：US875274

申请日：1997-07-18

申请人： Takashi Sada

发明人： Takashi Sada

IPC分类号： F01L1/16 ,  F01L1/18 ,  F16C13/00 ,  F16C33/30 ,  F16C33/12

CPC分类号： F16C13/006 ,  F01L1/16 ,  F01L1/18 ,  F16C33/30 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2820/01 ,  F02B2275/18 ,  Y10S384/912 ,  Y10S384/913 ,  Y10T428/24355 ,  Y10T428/268 ,  Y10T428/31

摘要： A machine part has a rolling contact surface (11a) having a lot of very small recesses which are independent of each other formed thereon. The maximum height (Ry) of a roughness profile (R) obtained by cutting the contact surface (11a) by a plane perpendicular to the contact surface (11a) is 1 to 3 .mu.m, and the peak height Rp of a center line of the roughness profile (R) and the valley depth Rv of the center line satisfy the relationship of Rp/Rv.ltoreq.0.3. In this case, the contact surface (11a) has very low crests which are relatively densely distributed and very deep troughs which are relatively sparsely distributed. A sufficiently wide contact area is ensured by the former very low crests which are relatively densely distributed. An oil sump in a sufficient amount is formed by the latter deep troughs which are sparsely distributed.

摘要翻译： PCT No.PCT / JP96 / 03390 Sec。 371日期1997年7月18日 102（e）1997年7月18日PCT PCT 1996年11月20日PCT公布。 公开号WO97 / 19278 日期1997年5月29日机器部分具有滚动接触表面（11a），其具有大量彼此独立于其上形成的非常小的凹部。 通过与接触面（11a）垂直的面切割接触面（11a）而得到的粗糙度轮廓（R）的最大高度（Ry）为1〜3μm，中心线的中心线的峰高Rp为 中心线的粗糙度轮廓（R）和谷深度Rv满足Rp / Rv <0.3的关系。 在这种情况下，接触表面（11a）具有非常低的波峰，这些波峰相对密集分布，并且相当稀疏地分布的非常深的波谷。 通过相对密集分布的前一个非常低的波峰确保足够宽的接触面积。 足够数量的油底壳由稀疏分布的后一个深槽形成。

公开(公告)号：US07950856B2

公开(公告)日：2011-05-31

申请号：US12073326

申请日：2008-03-04

申请人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

发明人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

IPC分类号： F16C33/66 ,  F16C33/58

CPC分类号： F16C37/007 ,  F16C19/364 ,  F16C33/6674 ,  F16C33/6685 ,  F16C33/7813 ,  F16C33/7889 ,  F16C2240/40 ,  F16C2361/61

摘要： A tapered roller bearing includes: an oil guide member that opens and closes an annular opening between an outer peripheral surface of a large rib of an inner ring and an outer ring and is mounted on the large rib; and a discharge port that discharges, along the outer peripheral surface of the large rib, lubricating oil and is formed through an inner peripheral portion of the oil guide member. The oil guide member includes a closing portion for closing the annular opening. When a fluid pressure of the lubricating oil which flows through pockets of a cage toward an inner peripheral surface of the outer ring is below a predetermined values, the closing portion closes the annular opening and guides the lubricating oil toward the discharge port. When the fluid pressure exceeds the predetermined value, the closing portion opens the annular opening.

摘要翻译： 一种圆锥滚子轴承，包括：导油构件，其在内圈的大肋的外周面与外圈之间开闭所述环状开口，并安装在所述大肋上; 以及排出口，其沿着大肋的外周面排出润滑油，并且通过导油构件的内周部形成。 导油构件包括用于封闭环形开口的封闭部分。 当流过保持器的凹穴朝向外圈的内周面的润滑油的流体压力低于预定值时，关闭部分封闭环形开口并将润滑油引向排出口。 当流体压力超过预定值时，关闭部分打开环形开口。

公开(公告)号：US20080219606A1

公开(公告)日：2008-09-11

申请号：US12073326

申请日：2008-03-04

申请人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

发明人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

IPC分类号： F16C33/10 ,  F16C33/58

CPC分类号： F16C37/007 ,  F16C19/364 ,  F16C33/6674 ,  F16C33/6685 ,  F16C33/7813 ,  F16C33/7889 ,  F16C2240/40 ,  F16C2361/61

摘要： A tapered roller bearing includes: an oil guide member that opens and closes an annular opening between an outer peripheral surface of a large rib of an inner ring and an outer ring and is mounted on the large rib; and a discharge port that discharges, along the outer peripheral surface of the large rib, lubricating oil and is formed through an inner peripheral portion of the oil guide member. The oil guide member includes a closing portion for closing the annular opening. When a fluid pressure of the lubricating oil which flows through pockets of a cage toward an inner peripheral surface of the outer ring is below a predetermined values, the closing portion closes the annular opening and guides the lubricating oil toward the discharge port. When the fluid pressure exceeds the predetermined value, the closing portion opens the annular opening.

摘要翻译： 一种圆锥滚子轴承，包括：导油构件，其在内圈的大肋的外周面与外圈之间开闭所述环状开口，并安装在所述大肋上; 以及排出口，其沿着大肋的外周面排出润滑油，并且通过导油构件的内周部形成。 导油构件包括用于封闭环形开口的封闭部分。 当流过保持器的凹穴朝向外圈的内周面的润滑油的流体压力低于预定值时，关闭部分封闭环形开口并将润滑油引向排出口。 当流体压力超过预定值时，关闭部分打开环形开口。

公开(公告)号：US20080205813A1

公开(公告)日：2008-08-28

申请号：US12071871

申请日：2008-02-27

申请人： Takashi Sada ,  Hiroki Matsuyama

发明人： Takashi Sada ,  Hiroki Matsuyama

IPC分类号： F16C33/36

CPC分类号： F16C33/467 ,  F16C19/364 ,  F16C33/46 ,  F16C33/4605 ,  F16C33/543 ,  F16C33/58 ,  F16C33/6681 ,  F16C2240/80 ,  F16C2300/02

摘要： A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and a cage. The cage includes a large diameter-side annular section, a small diameter-side annular section, and pillar sections connecting the large diameter-side annular section and the small diameter-side annular section and forming pockets retaining the tapered rollers. The radially inner surfaces of the pillar sections are disposed closer to the center than a pitch circle of the tapered rollers and are inclined from the small diameter-side annular section toward the large diameter-side annular section, thereby forming guide surfaces that guide lubricating oil toward the large rib. Roller holding portions are formed on side portions of the pillar sections so as to protrude along the outer peripheral surfaces of the tapered rollers to a position located at the outer side in the radial direction than the pitch circle.

摘要翻译： 圆锥滚子轴承包括内圈，外圈，多个圆锥滚子和保持架。 保持架包括大直径侧环形部分，小直径侧环形部分和连接大直径侧环形部分和小直径侧环形部分的柱部分，并形成保持圆锥滚子的凹部。 柱部的径向内表面比圆锥滚子的节圆更靠近中心，并且从小直径侧环状部朝向大直径侧环状部倾斜，从而形成导向润滑油的导向面 朝向大肋骨 辊支撑部分形成在柱部分的侧部上，以沿着圆锥滚子的外周面突出到比节圆更靠径向外侧的位置。

公开(公告)号：US5885690A

公开(公告)日：1999-03-23

申请号：US896854

申请日：1997-07-18

申请人： Takashi Sada

发明人： Takashi Sada

IPC分类号： F01L1/16 ,  F01L1/18 ,  F16C13/00 ,  F16C33/30 ,  F16C33/64 ,  F16H53/06

CPC分类号： F16C33/64 ,  F01L1/16 ,  F01L1/185 ,  F16C13/006 ,  F16C33/30 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2820/01 ,  F02B2275/18 ,  Y10T428/24355 ,  Y10T428/24479 ,  Y10T428/31678

摘要： A machine part has a rolling contact surface (11a) having a lot of very small recesses which are independent of each other. The maximum height (Ry) of a roughness profile (R) obtained by cutting the contact surface (11a) by a plane perpendicular to the contact surface (11a) is 1 to 3 .mu.m. The reduced peak height R.sub.PK obtained on the basis of a load curve M obtained from the roughness profile R satisfies the relationship of R.sub.PK /Ry

摘要翻译： 机器部件具有滚动接触面（11a），其具有彼此独立的许多非常小的凹部。 通过与接触面（11a）垂直的面切割接触面（11a）而得到的粗糙度轮廓（R）的最大高度（Ry）为1〜3μm。 基于从粗糙度轮廓R获得的载荷曲线M获得的降低的峰高RPK满足RPK / Ry <0.1与最大高度Ry的关系。 在这种情况下，接触表面具有非常小的凹陷，其疏散分布但是较深，使得其表面附近相对光滑。 通过靠近表面的平滑部分确保足够大的接触面积，并且由稀疏分布但是深的非常小的凹部形成足够量的油底壳。