公开(公告)号：US20110152138A1

公开(公告)日：2011-06-23

申请号：US13060481

申请日：2010-05-21

申请人： Tsuyoshi Nakai ,  Keiji Yasunaga ,  Tomohiro Motoda ,  Yuichi Endo ,  Mamoru Aoki ,  Koji Ueda ,  Katsunori Yanase ,  Satoru Watanabe ,  Hiroshi Ishiwada ,  Shun Nishizeki ,  Norikazu Kitagawa

发明人： Tsuyoshi Nakai ,  Keiji Yasunaga ,  Tomohiro Motoda ,  Yuichi Endo ,  Mamoru Aoki ,  Koji Ueda ,  Katsunori Yanase ,  Satoru Watanabe ,  Hiroshi Ishiwada ,  Shun Nishizeki ,  Norikazu Kitagawa

IPC分类号： F16C33/06 ,  F16C33/48 ,  C04B35/645

CPC分类号： F16C33/32 ,  C04B35/119 ,  C04B35/4885 ,  C04B35/6455 ,  C04B2235/3225 ,  C04B2235/3246 ,  C04B2235/3272 ,  C04B2235/5436 ,  C04B2235/5445 ,  F16C2206/42 ,  F16C2220/20 ,  F16C2360/46 ,  F16C2370/12 ,  F16C2380/26

摘要： To provide a rolling bearing which is superior in preventing electrolytic corrosion, suitable for use in applications where torque reduction of the bearing is required by reducing an amount of lubricant used or by using a lubricant having a low viscosity, and has superior acoustic characteristics and durability, a rolling element according to the present invention is made of an alumina-zirconia composite material including an alumina component and either a zirconia component or a yttria-zirconia component containing 1.5 to 5 mol % of yttria, a mass ratio of the alumina component to the zirconia component or the yttria-zirconia component being 5:95 to 50:50.

摘要翻译： 为了提供一种防止电解腐蚀的滚动轴承，适用于通过减少所使用的润滑剂的量或通过使用具有低粘度的润滑剂而需要减小轴承的应用，并且具有优异的声学特性和耐久性 根据本发明的滚动元件由氧化铝 - 氧化锆复合材料制成，氧化铝 - 氧化锆复合材料包括氧化铝组分和氧化锆组分或含有1.5-5mol％氧化钇的氧化钇 - 氧化锆组分，氧化铝组分与 氧化锆成分或氧化钇 - 氧化锆成分为5:95〜50:50。

公开(公告)号：US06896415B2

公开(公告)日：2005-05-24

申请号：US10190837

申请日：2002-07-09

申请人： Hiroshi Ishiwada ,  Mamoru Aoki ,  Seizou Miyazaki ,  Taikou Nawamoto ,  Hirotoshi Aramaki

发明人： Hiroshi Ishiwada ,  Mamoru Aoki ,  Seizou Miyazaki ,  Taikou Nawamoto ,  Hirotoshi Aramaki

IPC分类号： F16C19/16 ,  F16C19/56 ,  F16C23/08 ,  F16C33/41 ,  F16C33/66 ,  F16C35/12 ,  F16C43/04 ,  F16C23/06 ,  F16C19/08

CPC分类号： F16C43/04 ,  F16C19/06 ,  F16C19/547 ,  F16C19/56 ,  F16C25/083 ,  F16C33/416 ,  F16C33/6607 ,  F16C35/12 ,  F16C41/008 ,  F16C2240/40 ,  F16C2240/42

摘要： In a bearing apparatus which is composed of two bearings each including a crown-shaped retainer and in which a lubricant is filled into its raceways, a preload is applied from the retainer pocket-opening side end face of an inner ring, and also a preload is applied from the retainer counter-pocket-opening side end face of an outer ring.

摘要翻译： 在由两个轴承组成的轴承装置中，每个轴承包括冠形保持器，并且其润滑剂填充到其滚道中，从内圈的保持器开口侧端面施加预载荷，并且还具有预载 从外圈的保持器反口袋开口侧端面施加。

公开(公告)号：US06682223B2

公开(公告)日：2004-01-27

申请号：US10107046

申请日：2002-03-28

申请人： Youichiro Sugimori ,  Yasushi Mutoh ,  Michiharu Naka ,  Takashi Ogawa ,  Yasuhisa Terada ,  Hiroshi Ishiwada

发明人： Youichiro Sugimori ,  Yasushi Mutoh ,  Michiharu Naka ,  Takashi Ogawa ,  Yasuhisa Terada ,  Hiroshi Ishiwada

IPC分类号： F16C3366

CPC分类号： F16C33/418 ,  C10M169/00 ,  C10M2205/0206 ,  C10M2207/0406 ,  C10M2207/10 ,  C10M2207/1225 ,  C10M2207/1245 ,  C10M2207/2825 ,  C10M2207/301 ,  C10M2207/34 ,  C10N2220/022 ,  C10N2220/086 ,  F16C19/06 ,  F16C33/3887 ,  F16C33/414 ,  F16C33/427 ,  F16C33/585 ,  F16C33/6633 ,  F16C2240/76 ,  F16C2380/26

摘要： A ball bearing is described, which comprises an outer ring having on its inner periphery an outer raceway, an inner ring having on its outer periphery an inner raceway, plural balls rotatably disposed between the outer raceway and the inner raceway, a cage holding the plural balls in a freely rotatable manner, and a grease packed in a space between the outer raceway and the inner raceway, wherein the inner peripheral surface of each pocket of the cage contains a spherical part consisting of a spherical concave surface whose radius of curvature is slightly larger than that of each ball and a curved part which has the radius of curvature being larger than that of the spherical part and is smoothly continuous from the end of the spherical part toward the end thereof on the opening side of the pocket.

摘要翻译： 描述了一种滚珠轴承，其包括在其内周上具有外滚道的外圈，在其外周上具有内滚道的内圈，可旋转地设置在外滚道和内滚道之间的多个滚珠，保持多个 可自由旋转的球，以及填充在外滚道和内滚道之间的空间中的润滑脂，其中，保持架的每个凹部的内周面包含球面部，该球面部的球面凹面的曲率半径略微 大于每个球的曲率部分和曲率半径大于球形部分的曲率半径，并且在球形开口侧从球形部分的端部朝向其端部平滑地连续。

公开(公告)号：US06648517B2

公开(公告)日：2003-11-18

申请号：US10000218

申请日：2001-12-04

申请人： Hiroshi Ishiwada ,  Yasushi Mutoh ,  Banda Noda ,  Tatsunobu Momono ,  Magozou Hamamoto ,  Yasuhisa Terada

发明人： Hiroshi Ishiwada ,  Yasushi Mutoh ,  Banda Noda ,  Tatsunobu Momono ,  Magozou Hamamoto ,  Yasuhisa Terada

IPC分类号： F16C3341

CPC分类号： F16C33/418 ,  F16C19/06 ,  F16C33/416 ,  F16C2240/46 ,  F16C2380/26

摘要： The pocket surface of a pocket with a ball stored therein has a pair of first pocket surfaces respectively formed inside a pair of pawls and a second pocket surface situated between the two first pocket surfaces. The second pocket surface is formed as a spherical-shaped concave surface having a radius of curvature the center of curvature of which is the rotation center of the ball in a no-load state. Each of the first pocket surfaces has a center of curvature shifted from the center of curvature of the second pocket surface toward the opposite side to the entrance (opening) of the pocket by an axially shifting quantity h1, and each of the first pocket surfaces is formed, starting from the present center of curvature, as a spherical-shaped concave surface with its radius of curvature set larger than the radius of curvature of the second pocket surface.

公开(公告)号：US06630758B2

公开(公告)日：2003-10-07

申请号：US09851347

申请日：2001-05-09

申请人： Mamoru Aoki ,  Takayuki Miyagawa ,  Hiroshi Ishiwada

发明人： Mamoru Aoki ,  Takayuki Miyagawa ,  Hiroshi Ishiwada

IPC分类号： H02K1100

CPC分类号： H02K5/1737 ,  F16C35/0635 ,  F16C35/067

摘要： A motor comprises a rotor, a stator, and a shaft wherein one of the stator and the rotor is provided with a housing, a rolling bearing is provided between the housing and the shaft and having an inner race and outer race, the inner race is fixed to the shaft through adhesion between the outer peripheral surface of the shaft and the inner peripheral surface of the inner race, the outer race is fixed to the housing through press-fitting, and the outer peripheral surface of the shaft is formed with knurled grooves, where the number (P) of the knurled grooves in the circumferential direction and the number (Z) of the rolling members in the rolling bearing are in the relations of P≢n Z and P≢nZ±1 where n is a positive integer.

摘要翻译： 电动机包括转子，定子和轴，其中定子和转子中的一个设置有壳体，滚动轴承设置在壳体和轴之间，并具有内圈和外圈，内圈是 通过轴的外周表面和内圈的内周面之间的粘附固定在轴上，外圈通过压配固定到壳体，并且轴的外周面形成有滚花槽 其中，圆周方向的滚花槽的数量（P）和滚动轴承中的滚动部件的数量（Z）与P≢nZ和P≢nZ±1的关系为n，其中n为正整数 。

公开(公告)号：US06474872B2

公开(公告)日：2002-11-05

申请号：US09977191

申请日：2001-10-16

申请人： Toru Takamizawa ,  Mamoru Aoki ,  Takayuki Miyagawa ,  Hiroshi Ishiwada ,  Hirotoshi Aramaki

发明人： Toru Takamizawa ,  Mamoru Aoki ,  Takayuki Miyagawa ,  Hiroshi Ishiwada ,  Hirotoshi Aramaki

IPC分类号： F16C3358

CPC分类号： F16C19/54 ,  F16C19/06 ,  F16C33/585 ,  F16C2240/76 ,  F16C2370/12

摘要： In the ball bearing, the ratio of the radius of curvature of an inner race raceway 4 to the outside diameter of balls 8, 8 is set in the range of 0.51 to 0.54. Also, the ratio of the radius of curvature of an outer race raceway 6 to the outside diameter of balls 8, 8 is set in the range of 0.54 to 0.56. Further, an interior geometric clearance c is set at 13 &mgr;m or less. Thanks to these specifications, the balls 8, 8 can be prevented from running up onto the edge of the outer race raceway 6.