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    • 93. 发明专利
    • Tandem type double-row angular ball bearing
    • TANDEM型双面直角球轴承
    • JP2014020401A
    • 2014-02-03
    • JP2012157105
    • 2012-07-13
    • Nsk Ltd日本精工株式会社
    • NAGASAKI KOTATANAKA TAKAMICHI
    • F16C33/58F16C19/18
    • F16C19/182F16C19/505F16C33/585F16C2240/70F16C2361/61
    • PROBLEM TO BE SOLVED: To provide a tandem type double-row angular ball bearing which materializes a structure capable of preventing that a surface pressure of a rolling contact part between rolling surface of each ball 5a, 5b and both outer ring raceways 6a, 7a of large-diameter side and small-diameter side becomes excessive even when such a structure that each ball 5a, 5b hardly detaches from both outer ring raceways 6a, 7a of large-diameter side and small-diameter side to one side in the axial direction is adopted.SOLUTION: Sizes R, Φof respective parts are regulated such that a curvature Rof a large-diameter side outer ring raceway 6a and a diameter size Φof each ball 5a constituting a large-diameter side ball row satisfy the relation of 0.505≤R/Φ≤0.53. Further, sizes R, Φof respective parts are regulated such that a curvature Rof a small-diameter side outer ring raceway 7a and a diameter size Φof each ball 5b constituting a small-diameter side ball row satisfy the relation of 0.53≤R/Φ≤0.54.
    • 要解决的问题:提供一种串联式双列角球轴承,其实现了能够防止每个球体5a,5b的滚动表面和两个外圈滚道6a,7a的滚动面之间的滚动接触部分的表面压力的结构 即使各球5a,5b几乎不脱离大径侧,小直径侧的外圈滚道6a,7a沿轴向一侧的结构,大径侧和小直径侧也变得过大, 通过调整各部件的尺寸R,Φ,构成大直径侧球排的大径侧外圈滚道6a的大直径侧外圈滚道6a和直径尺寸Φ的曲率Rof满足0.505≤R/ Φ≤0.53。 此外,各部件的尺寸R,Φ被调整为构成小直径侧球排的小直径侧外圈滚道7a和每个滚珠5b的直径尺寸Φ的曲率Rof满足0.53≤R/Φ≤ 0.54。
    • 95. 发明专利
    • Thrust roller bearing with races
    • 滚动轴承与轴承
    • JP2013079718A
    • 2013-05-02
    • JP2012183813
    • 2012-08-23
    • Nsk Ltd日本精工株式会社
    • TAKEMURA HIROMICHIKONDO YUTAKA
    • F16C33/58F16C19/30F16C33/54
    • F16C33/605F16C19/30F16C33/4641F16C33/547F16C33/588F16C43/04F16C2240/46F16C2240/70
    • PROBLEM TO BE SOLVED: To provide a thrust roller bearing structure with races that can increase the permissible level of eccentricity of a pair of members that rotate relative to each other as well as increase the amount of lubricating oil that is circulated therein, while securing the function of preventing the separation of a cage 3, a first thrust race 4a and a second thrust race 5a, that is excellent in handlability, and that can secure stable operating condition even under severe using condition.SOLUTION: The external diameter of the external diameter side flange 8a formed on the outer peripheral edge part of the first thrust race 4a is 60-120 mm, the internal diameter of the internal diameter side flange 11a formed on the inner peripheral edge part of an internal diameter side flange 5a is 40-80 mm, and the internal space is 1-2 mm. Therefore, the external diameter side catch 9a is formed intermittently in the circumferential direction on the leading edge of the external diameter side flange 8a.
    • 要解决的问题:为了提供具有可以增加一对相对于彼此旋转的一对构件的允许偏心水平以及增加其中循环的润滑油的种类的推力滚子轴承结构, 同时确保防止分离保持架3,第一推力座圈4a和第二推力座圈5a的功能,其具有优异的可处理性,并且即使在严苛的使用条件下也能够确保稳定的操作条件。 解决方案:形成在第一推力座圈4a的外周边缘部分上的外径侧凸缘8a的外径为60-120mm,形成在内周边缘上的内径侧凸缘11a的内径 内径侧凸缘5a的一部分为40〜80mm,内部空间为1-2mm。 因此,在外径侧凸缘8a的前缘上,在圆周方向间歇地形成外径侧卡子9a。 版权所有(C)2013,JPO&INPIT
    • 96. 发明专利
    • Finite rolling motion guide device
    • 有限滚动运动指南装置
    • JP2013040669A
    • 2013-02-28
    • JP2011179343
    • 2011-08-19
    • Thk Co LtdThk株式会社
    • HIKOMOTO KENTARO
    • F16C29/06F16C33/36F16C33/58
    • F16C29/04F16C33/36F16C33/40F16C33/585F16C2240/70
    • PROBLEM TO BE SOLVED: To provide a finite rolling motion guide device which can maximally take an operation stroke of a second member with respect to a first member by forming differences at contacting diameters of rolling bodies with respect to rolling traveling faces of the first member side and the second member side.SOLUTION: In the finite rolling motion guide device having balls 7 as the rolling bodies which are rollingly interposed between ball rolling traveling grooves 4, 6 formed at an opposite face between a raceway rail 3 and a moving block 5, and a cage 9 for holding the balls 7, the contacting diameters dof contacting parts C, Ccontacting with the ball rolling traveling groove 6 at the moving block 5 side of the balls 7 are set smaller than the contacting diameter dof a contacting part Ccontacting with the ball rolling traveling groove 4 at the raceway rail 3 side of the balls 7.
    • 要解决的问题:提供一种有限的滚动运动引导装置,其可以通过在滚动体的相对于滚动体的滚动行进面的接触直径方面形成差异来最大限度地获取第二构件相对于第一构件的操作行程 第一构件侧和第二构件侧。 解决方案:在具有作为滚动体的滚珠7的有限滚动运动引导装置中,滚动体滚动地插入到形成在轨道轨道3和移动块5之间的相对面处的滚珠滚动行进槽4,6之间, 9,用于保持滚珠7,接触部分C 11 的接触直径d 2 ,C 1 在滚珠7的轨道轨道3侧与滚珠行进槽4接触的 0 。版权所有(C)2013,JPO&INPIT
    • 99. 发明专利
    • Rolling bearing device
    • 滚动轴承装置
    • JP2010167875A
    • 2010-08-05
    • JP2009011597
    • 2009-01-22
    • Jtekt Corp株式会社ジェイテクト
    • FUJIWARA ARIHIRO
    • B60B27/00B60B35/18F16C19/18F16C33/32F16C33/64
    • F16C19/186F16C33/586F16C33/64F16C2240/70F16C2326/02
    • PROBLEM TO BE SOLVED: To provide a rolling bearing device which has improved fatigue strength of a rotating member by providing a shot-peening process on a recess of the rotating member. SOLUTION: The recess 3d, which is open to the outer side of a vehicle and dented around the central axis L1, is formed on an inner shaft 3 (the rotating member) of a hub unit 1 (the rolling bearing device). The recess 3d is formed by connecting arc faces 3d1, 3d2, whose center of curvatures O1, O2 are positioned on the central axis L1. The curvature radius r1 of the arc face 3d1 is set so as to become larger compared with opening radius R1 specified by an arc plane of projection when the arc face 3d1 is projected on the plane of projection P intersecting perpendicularly with the central axis L1. The curvature radius r2 of the arc face 3d2 is set so as to become larger compared with opening radius R2 specified by an arc plane of projection when the arc face 3d2 is projected on the plane of projection P intersecting perpendicularly with the central axis L1. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种通过在旋转构件的凹部上提供喷丸处理来提高旋转构件的疲劳强度的滚动轴承装置。 解决方案:在轮毂单元1(滚动轴承装置)的内轴3(旋转构件)上形成有向车辆外侧开口并围绕中心轴线L1凹陷的凹部3d, 。 凹部3d通过将其曲率中心O1,O2位于中心轴线L1上的圆弧面3d1,3d2连接而形成。 当弧面3d1投射在与中心轴线L1垂直交叉的突起P的平面上时,弧面3d1的曲率半径r1被设定为与由凸起的弧形平面规定的开口半径R1相比变大。 当弧面3d2投影在与中心轴线L1垂直相交的突起P的平面上时,弧面3d2的曲率半径r2被设定为与由凸起的弧面所指定的开口半径R2相比变大。 版权所有(C)2010,JPO&INPIT
    • 100. 发明专利
    • Sealed rolling bearing
    • 密封滚动轴承
    • JP2010138931A
    • 2010-06-24
    • JP2008313253
    • 2008-12-09
    • Ntn CorpNtn株式会社
    • SUGIURA MITSUHIRO
    • F16C33/78F16C33/80F16J15/32F16J15/447
    • F16C33/7856F16C19/06F16C33/7823F16C2240/70F16J15/3456
    • PROBLEM TO BE SOLVED: To solve the problem that when a sealed rolling bearing in a seal structure is subjected to a temperature increase caused by the friction heat of a seal or thermal conduction from outside, and is subsequently cooled down, negative pressure is generated in an internal space of the bearing to cause a seal lip of the bearing to stick to a seal groove, resulting in seal lip abrasion, while maintaining sealing performance of the seal lip. SOLUTION: In the sealed rolling bearing in which a sealing member 17 has a seal lip 28 abutting against a raceway-side groove wall 23 of a seal groove 21 on its edge, the seal lip 28 has a contact tip 35 shaped in arc with a curvature radius R of 0.1 mm to less than 0.2 mm. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题为了解决当密封结构体中的密封滚动轴承受到由密封件的摩擦热或来自外部的热传导引起的温度升高并随后被冷却时的负压 在轴承的内部空间中产生,以使轴承的密封唇粘附到密封槽,导致密封唇磨损,同时保持密封唇的密封性能。 解决方案:密封件17在其密封件17具有密封唇28的密封滚动轴承中,密封唇缘28的边缘与密封槽21的滚道侧槽壁23邻接,密封唇28具有形状为 曲率半径R为0.1mm至小于0.2mm的弧。 版权所有(C)2010,JPO&INPIT