ROLLING BEARING AND ROTATING DEVICE INCLUDING ROLLING BEARING

    公开(公告)号:US20190195275A1

    公开(公告)日:2019-06-27

    申请号:US16214997

    申请日:2018-12-10

    申请人: JTEKT CORPORATION

    摘要: A rolling bearing includes: an inner ring; an outer ring; and a plurality of rolling elements provided between the inner ring and the outer ring, wherein: one of the inner ring and the outer ring is a rotating ring; the other one of the inner ring and the outer ring is a firm ring; the firm ring is attached to a prescribed member; and a black oxide film having a mesh-shaped crack is formed on at least one surface of a fitting surface of the firm ring and a side face of the firm ring, the fitting surface facing the prescribed member in a radial direction of the rolling bearing, the side face making contact with the prescribed member in an axial direction of the rolling bearing.

    Ball Bearing
    3.
    发明申请
    Ball Bearing 有权
    球轴承

    公开(公告)号:US20160017923A1

    公开(公告)日:2016-01-21

    申请号:US14794071

    申请日:2015-07-08

    申请人: JTEKT CORPORATION

    发明人: Yasuhiko ISHII

    IPC分类号: F16C33/66 F16C19/06

    摘要: A ball bearing includes: an inner ring having an inner ring raceway surface on its outer circumference; an outer ring having an outer ring raceway surface on its inner circumference; a plurality of balls are disposed between the inner and outer ring raceway surfaces; and a cage. In the outer circumference of the inner ring, an inner ring shoulder portion is provided on a first axial side of the inner ring and a counter bore is provided on a second axial side of the inner ring. A tapered surface extending radially outward toward the ball is formed in a portion that is in a circumferential wall of each pocket hole, and that is in an end on a first axial side of the cage.

    摘要翻译: 一种滚珠轴承,包括:内圈,其内周具有内圈滚道表面; 外环,其外周具有外圈滚道表面; 在内圈和外圈滚道表面之间设置多个滚珠; 和一个笼子。 在内圈的外周,在内圈的第一轴向侧设置有内圈肩部,在内圈的第二轴向侧设有反孔。 形成在径向向外朝向球的锥形表面,该锥形表面位于每个凹穴的圆周壁上,并且位于保持架的第一轴向侧的端部。

    ROLLING BEARING
    5.
    发明申请
    ROLLING BEARING 审中-公开

    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

    IPC分类号: F16C33/80 F16C19/16 F16C33/78

    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.

    Rolling Bearing
    6.
    发明申请
    Rolling Bearing 审中-公开

    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

    IPC分类号: F16C33/66 F16C33/58 F16C19/16

    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.

    ROLLING BEARING
    7.
    发明申请
    ROLLING BEARING 有权
    滚动轴承

    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

    IPC分类号: F16C33/66 F16C19/16 F16C33/78

    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。

    BALL BEARING
    8.
    发明申请
    BALL BEARING 审中-公开

    公开(公告)号:US20190101158A1

    公开(公告)日:2019-04-04

    申请号:US16144618

    申请日:2018-09-27

    申请人: JTEKT CORPORATION

    IPC分类号: F16C33/58 F16C19/16 F16C33/80

    摘要: A ball bearing includes an inner ring, an outer ring, and a cage that supports balls. At least one portion of each prong of the cage overlaps with an inner ring raceway surface in an axial direction and the entirety of the prongs do not overlap with a shoulder of the inner ring in the axial direction. A pocket of the cage overlaps with virtual conical planes that are parallel to a reference virtual conical plane including an inner ring nominal contact point and an outer ring nominal contact point, and that are part, on the other axial side, of both a virtual conical plane including an edge between the inner ring raceway surface and the shoulder of the inner ring and a virtual conical plane including an edge between the outer ring raceway surface and the outer ring counter-bored portion.

    ROLLING BEARING
    9.
    发明申请
    ROLLING BEARING 审中-公开

    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

    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.

    BALL BEARING
    10.
    发明申请
    BALL BEARING 审中-公开

    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

    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.