公开(公告)号：US10145413B2

公开(公告)日：2018-12-04

申请号：US15653841

申请日：2017-07-19

申请人： JTEKT CORPORATION

发明人： Daisuke Okamoto ,  Takuya Toda

IPC分类号： F16C19/30 ,  F16C19/50 ,  F16C19/22 ,  F16C33/38 ,  E21B4/00 ,  F16C19/18 ,  F16C33/66 ,  F16C19/16 ,  F16C19/54

摘要： Rolling bearings are stacked with their center lines extending in a vertical direction. Each of the rolling bearings has an inner ring, an outer ring, a plurality of balls, and an annular cage. Each of the rolling bearings has a structure that induces, upon rotation, an action that causes lubricating oil to flow upward along the outer ring in the annular space. The cage has an annular portion provided adjacently below the balls to prevent air from moving to the outer ring side from the inner ring side.

公开(公告)号：US09752619B2

公开(公告)日：2017-09-05

申请号：US14687319

申请日：2015-04-15

申请人： JTEKT CORPORATION

发明人： Yuzuru Takahashi ,  Daisuke Okamoto ,  Kouichirou Naitou

IPC分类号： F16H57/037 ,  F16C33/58 ,  F16H48/42 ,  F16C19/18 ,  F16C33/38 ,  F16C33/66 ,  F16H1/14

CPC分类号： F16C33/586 ,  F16C19/182 ,  F16C33/3806 ,  F16C33/3856 ,  F16C33/6674 ,  F16C2240/40 ,  F16C2240/46 ,  F16C2240/70 ,  F16C2361/61 ,  F16H1/145 ,  F16H48/42 ,  F16H57/037 ,  F16H2048/423

摘要： A double row ball bearing includes: an outer ring; an inner ring; a plurality of first balls disposed between the outer ring and the inner ring to form a first ball row; a plurality of second balls disposed between the outer ring and the inner ring to form a second ball row having a pitch circle diameter larger than that of the first ball row; an annular first cage having a plurality of first pockets in which the first balls are held; an annular second cage having a plurality of second pockets in which the second balls are held; and an annular portion that covers, together with the outer ring, a portion of each second ball held in the second pocket from the radially outside, the portion being exposed on the outside of the second pocket and oriented radially outward.

公开(公告)号：US09441674B2

公开(公告)日：2016-09-13

申请号：US14581368

申请日：2014-12-23

申请人： JTEKT CORPORATION

发明人： Akiyuki Suzuki ,  Daisuke Okamoto ,  Hiroyuki Ohshima ,  Atsushi Nagai

IPC分类号： F16C33/38 ,  F16C33/66 ,  F16C33/40 ,  F16C19/18

CPC分类号： F16C33/6681 ,  F16C19/182 ,  F16C33/405 ,  F16C33/6674

摘要： A ball bearing includes an outer ring; an inner ring; a plurality of balls; and a cage that has an annular shape. Oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction. The cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side. An outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face intersects with an outer peripheral surface. An axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring.

摘要翻译： 球轴承包括外圈; 内圈 多个球; 以及具有环形形状的保持架。 油从轴向一侧流入外圈和内圈之间的区域，从轴向另一侧流出。 保持架包括设置在油流入侧的环形部分和从环形部分向油流出侧延伸的杆部分。 环状部的外周端部由轴向外端面与外周面相交的角部构成。 角部的前端的轴向位置与外圈的侧面的轴向位置基本相同。

公开(公告)号：US09228612B2

公开(公告)日：2016-01-05

申请号：US14570198

申请日：2014-12-15

申请人： JTEKT CORPORATION

发明人： Daisuke Okamoto ,  Akiyuki Suzuki

IPC分类号： F16C33/46 ,  F16C33/58 ,  F16C33/66 ,  F16C19/36

CPC分类号： F16C33/6681 ,  F16C19/364 ,  F16C33/46 ,  F16C33/4605 ,  F16C33/4635 ,  F16C33/6674

摘要： A tapered roller bearing includes: an outer ring; an inner ring; a plurality of tapered rollers; and a cage that holds the tapered rollers at equal intervals in the circumferential direction of the tapered roller bearing. A small-diameter-side inner periphery end portion of the cage is located at a position inward of an axially outer small end face of the inner ring in the axial direction of the tapered roller bearing. A small-diameter-side end face of the cage has an inwardly tilted face that is tilted inward in the axial direction from the inner periphery end portion from the radially inner side to the radially outer side.

摘要翻译： 圆锥滚子轴承包括：外圈; 内圈 多个圆锥滚子; 以及在圆锥滚子轴承的圆周方向上以等间隔保持圆锥滚子的保持架。 保持架的小径侧内周端部位于圆锥滚子轴承的轴向上的内圈的轴向外侧小端面的内侧的位置。 保持架的小直径侧端面具有从内周端部从径向内侧向径向外侧沿轴向内侧倾斜的向内倾斜面。

公开(公告)号：US09416823B2

公开(公告)日：2016-08-16

申请号：US14570410

申请日：2014-12-15

申请人： JTEKT CORPORATION

发明人： Daisuke Okamoto ,  Akiyuki Suzuki

IPC分类号： F16C33/66 ,  F16C33/46 ,  F16C19/36

CPC分类号： F16C33/6681 ,  F16C19/364 ,  F16C33/46 ,  F16C33/4605 ,  F16C33/4635 ,  F16C33/6674

摘要： A corner is formed at a small-diameter-side end portion of a cage. The cage is disposed such that the axial position of a tip of the corner substantially coincides with the axial position of a large end face of an outer ring. Thus, a cylindrical space formed between an inner periphery cylindrical face of the outer ring and an outer periphery cylindrical face of the cage is filled with an oil low pressure region. As a result, the inflow of the oil into a bearing is restricted.

摘要翻译： 在保持架的小直径侧端部形成有角部。 保持架设置成使得角部的尖端的轴向位置与外圈的大端面的轴向位置大致重合。 因此，在外圈的内周圆柱面和保持架的外周圆筒面之间形成的圆筒状的空间填充有油低压区域。 结果，限制了油进入轴承的流入。