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公开(公告)号：US20170184152A1
公开(公告)日：2017-06-29
申请号：US15379987
申请日：2016-12-15
申请人： JTEKT CORPORATION
发明人： Youzou TANIGUCHI , Takashi IWATA
CPC分类号： F16C33/3806 , F16C19/06 , F16C33/414 , F16C33/416 , F16C33/6637 , F16C33/6681 , F16C43/065
摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and an annular cage. The cage has an annular portion provided on a first side in an axial direction with respect to the balls and a plurality of cage bars. Pockets that house the balls are each formed between the cage bars adjacent to each other in a circumferential direction. An axially-first-side side surface of the annular portion has a first surface that is inclined toward the first side in the axial direction as the first surface extends outward in a radial direction and a second surface provided outward of the first surface in the radial direction and positioned on the second side in the axial direction with respect to an extended virtual plane of the first surface.
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公开(公告)号：US20170138404A1
公开(公告)日：2017-05-18
申请号：US15347513
申请日：2016-11-09
申请人： JTEKT CORPORATION
发明人： Youzou TANIGUCHI , Yasuhiko ISHII , Takashi IWATA
CPC分类号： F16C35/042 , F16C19/16 , F16C33/583 , F16C33/585 , F16C33/586 , F16C35/067 , F16C2220/70 , F16C2240/30 , F16C2240/42
摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and a cage that holds the balls. An annular groove for creep suppression is formed in a fitting surface that is fitted on a housing to which an outer ring is attached. The annular groove has a depth at which a groove bottom portion of the annular groove is precluded from coming into contact with the mating member when a static load rating is imposed on the annular groove in a radial direction.
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公开(公告)号：US20180340572A1
公开(公告)日：2018-11-29
申请号：US16053179
申请日：2018-08-02
申请人： JTEKT CORPORATION
发明人： Yasuhiko ISHII , Youzou TANIGUCHI , Takashi IWATA
CPC分类号： F16C33/6614 , F16C19/16 , F16C33/583 , F16C33/585 , F16C33/6607 , F16C33/6629 , F16C33/7823 , F16C33/7846 , F16C33/80
摘要： An inner ring includes: a pair of shoulder outer peripheral surfaces on first and second axial sides of a raceway surface of the inner ring in contact with balls; seal grooves disposed in first and second axial ends of the inner ring and defining labyrinth clearances with lips; and edges disposed on the first and second axial sides. Each of the edges is configured to cause grease flowing along an associated one of the shoulder outer peripheral surfaces to leave the shoulder outer peripheral surface in the direction of an extension thereof. Each of the lips includes a lip oblique surface functioning as a guide surface to guide the grease that has left the edge not to a radially inner region of the bearing but to a radially outer region of the bearing.
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公开(公告)号：US20170204908A1
公开(公告)日：2017-07-20
申请号：US15326149
申请日：2015-07-15
申请人： JTEKT CORPORATION
发明人： Yasuhiko ISHII , Takashi IWATA
CPC分类号： F16C33/6614 , F16C19/06 , F16C19/163 , F16C33/38 , F16C33/385 , F16C33/425 , F16C33/58 , F16C33/585 , F16C33/78 , F16C33/785
摘要： A ball bearing includes an inner ring including an inner ring raceway surface on an outer periphery, an outer ring including an outer ring raceway surface on an inner periphery, a plurality of balls arranged between the inner ring raceway surface and the outer ring raceway surface, and a retainer including a plurality of pocket holes which respectively store the plurality of the balls, and arranged between the inner ring and the outer ring. Grease is sealed between the inner ring and the outer ring. The inner periphery of the outer ring is contacted with outer peripheral surface of the retainer so as to guide the retainer. The inner periphery of the outer ring includes a grease storage groove which communicates with the outer ring raceway surface, only on one side in an axial direction of the outer ring with respect to the outer ring raceway surface.
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公开(公告)号：US20170138403A1
公开(公告)日：2017-05-18
申请号：US15347363
申请日：2016-11-09
申请人： JTEKT CORPORATION
发明人： Youzou TANIGUCHI , Yasuhiko ISHII , Takashi IWATA
摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and a cage that holds the balls. An annular groove for creep suppression is formed in a fitting surface that is fitted on a housing to which an outer ring is attached. The annular groove has a groove bottom portion and a pair of tapered surface portions extending from opposite sides of the groove bottom portion in an axial direction and defining a groove width that is larger toward the fitting surface. In a section including a bearing center line, each of the tapered surface portions has a linear sectional shape inclined to the fitting surface.
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公开(公告)号：US20140079572A1
公开(公告)日：2014-03-20
申请号：US14031477
申请日：2013-09-19
申请人： JTEKT CORPORATION
发明人： Takashi IWATA , Chiaki SAITO , Yoshitaka WASEDA
CPC分类号： F16C33/6637 , F01D25/16 , F16C19/163 , F16C19/527 , F16C19/548 , F16C27/045 , F16C33/6674 , F16C33/6681 , F16C33/6685 , F16C35/077 , F16C2360/24
摘要： A bearing device includes: an outer ring housing in a cylindrical shape which is provided in a casing and has a discharge hole in an axially central portion of the outer ring housing and a notch groove passing through an axial end surface of the outer ring housing in the radial direction; and a rolling bearing mounted on each of both axial sides of the outer ring housing and rotatably supporting a rotational shaft positioned radially inside of the outer ring housing.
摘要翻译： 一种轴承装置，包括：外圈壳体，其设置在壳体中，并且在外圈壳体的轴向中心部分具有排出孔，以及穿过外圈壳体的轴向端面的切口槽 径向方向 以及滚动轴承，其安装在所述外圈壳体的两个轴向侧的每一个上，并且可旋转地支撑位于所述外圈壳体的径向内侧的旋转轴。
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公开(公告)号：US20180163786A1
公开(公告)日：2018-06-14
申请号：US15578482
申请日：2016-06-01
申请人： JTEKT CORPORATION
发明人： Yasuhiko ISHII , Takashi IWATA
CPC分类号： F16C33/80 , F16C19/163 , F16C33/583 , F16C33/782 , F16C33/7846 , F16C2300/02
摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements, and a cage. A first seal is provided on one side of the annular space between the inner ring and the outer ring in the axial direction and has a first lip portion that forms a first labyrinth clearance with the inner ring to prevent spill of the grease. A second seal is provided on the other side of the annular space in the axial direction and has a second lip portion that forms a second labyrinth clearance with the inner ring to prevent spill of the grease. The second lip portion is larger than the first lip portion such that the path length of the second labyrinth clearance is longer than the path length of the first labyrinth clearance.
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公开(公告)号：US20170211628A1
公开(公告)日：2017-07-27
申请号：US15408721
申请日：2017-01-18
申请人： JTEKT CORPORATION
发明人： Yasuhiko ISHII , Youzou TANIGUCHI , Takashi IWATA
CPC分类号： F16C33/6614 , F16C19/16 , F16C33/583 , F16C33/585 , F16C33/6607 , F16C33/6629 , F16C33/7823 , F16C33/7846 , F16C33/80
摘要： An inner ring includes: a pair of shoulder outer peripheral surfaces on first and second axial sides of a raceway surface of the inner ring in contact with balls; seal grooves disposed in first and second axial ends of the inner ring and defining labyrinth clearances with lips; and edges disposed on the first and second axial sides. Each of the edges is configured to cause grease flowing along an associated one of the shoulder outer peripheral surfaces to leave the shoulder outer peripheral surface in the direction of an extension thereof. Each of the lips includes a lip oblique surface functioning as a guide surface to guide the grease that has left the edge not to a radially inner region of the bearing but to a radially outer region of the bearing.
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公开(公告)号：US20170184153A1
公开(公告)日：2017-06-29
申请号：US15380714
申请日：2016-12-15
申请人： JTEKT CORPORATION
发明人： Youzou TANIGUCHI , Takashi IWATA
CPC分类号： F16C33/3887 , F16C19/06 , F16C33/414 , F16C33/416 , F16C33/418 , F16C2226/74 , F16C2300/02
摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and an annular cage that holds the balls at intervals in a circumferential direction. The cage has an annular portion on a first side in an axial direction, and a plurality of cage bars. Pockets that hold the respective balls are each formed between a pair of the cage bars adjacent to each other in the circumferential direction on a second side in the axial direction with respect to the annular portion. Each of the pockets has a pocket surface shaped along a cylindrical surface centered around a center line that is a virtual line extending in a bearing radial direction. A linear protrusion that is elongate in a direction parallel to the center line is provided at an axially-first-side bottom portion of the pocket surface.
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公开(公告)号：US20160053810A1
公开(公告)日：2016-02-25
申请号：US14820125
申请日：2015-08-06
申请人： JTEKT CORPORATION
发明人： Yasuhiko ISHII , Takashi IWATA
CPC分类号： F16C33/6614 , F16C19/163 , F16C19/166 , F16C33/3806 , F16C33/6629 , F16C33/7856 , F16C33/80 , F16C2240/46
摘要： A rolling bearing includes an outer ring, an inner ring in which a shoulder diameter at one end of the rolling bearing in an axial direction is different from a shoulder diameter at the other end of the rolling bearing in the axial direction, a cage, a plurality of rolling elements, and shielding portions. A first clearance between an outer ring inner peripheral surface facing a large end of the inner ring having the larger shoulder diameter and a cage outer peripheral surface facing the outer ring inner peripheral surface is larger than a second clearance between an outer ring inner peripheral surface facing a small end of the inner ring having the smaller shoulder diameter and a cage outer peripheral surface facing the outer ring inner peripheral surface.
摘要翻译： 滚动轴承包括外圈，内圈，滚动轴承的一端在轴向上的肩部直径不同于滚动轴承在轴向方向上的另一端的肩部直径，保持架， 多个滚动元件和屏蔽部分。 面对具有较大肩部直径的内圈的大端部的外圈内周面与面向外圈内周面的保持架外周面之间的第一间隙大于面向外圈内周面的外圈内周面之间的第二间隙 具有较小肩直径的内环的小端和面向外环内周面的保持架外周面。
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