公开(公告)号：EP2672131B1

公开(公告)日：2017-05-17

申请号：EP12742389.5

申请日：2012-02-02

申请人： NSK Ltd.

发明人： YAMADA, Ryosuke ,  YOKOTA, Tomoyuki

IPC分类号： F16C33/54 ,  F16C19/30 ,  F16C33/46 ,  F16C33/58

CPC分类号： F16C19/305 ,  F16C19/30 ,  F16C33/4605 ,  F16C33/547 ,  F16C33/588 ,  F16C2240/60 ,  F16C2361/61

公开(公告)号：EP2672131A1

公开(公告)日：2013-12-11

申请号：EP12742389.5

申请日：2012-02-02

申请人： NSK Ltd.

发明人： YAMADA, Ryosuke ,  YOKOTA, Tomoyuki

IPC分类号： F16C19/30 ,  F16C19/46 ,  F16C33/46 ,  F16C33/58 ,  F16C43/04

CPC分类号： F16C19/305 ,  F16C19/30 ,  F16C33/4605 ,  F16C33/547 ,  F16C33/588 ,  F16C2240/60 ,  F16C2361/61

摘要： Construction of a roller thrust bearing is achieved wherein it is possible to keep a thrust race from coming apart from a cage without wear or cracking occurring in a cage element and without impact occurring between the thrust race and cage even when used in an application wherein a rotating section rotates at high speed, or when used in an application wherein relative displacement between members of a rotating section is large. The thickness of metal plate of a first cage element 35 is preferably 5/6 the thickness of metal plate of a second cage element 36 or less. Alternatively, the thickness of metal plate of a second cage element 56 is preferably 5/6 the thickness of metal plate of a first cage element 55 or less.

摘要翻译： 实现滚子止推轴承的构造，其中可以保持推力座圈从保持架中分离而不会在保持架元件中发生磨损或破裂，并且即使在用于其中的推荐座圈和保持架之间也不发生冲击时， 旋转部分以高速旋转，或者当用于旋转部件的部件之间的相对位移大的应用中时。 第一笼状元件35的金属板的厚度优选为第二笼状元件36的金属板的厚度的5/6以下。 或者，第二保持架元件56的金属板的厚度优选为第一保持架元件55的金属板的厚度的5/6以下。

公开(公告)号：EP2423524B1

公开(公告)日：2018-04-18

申请号：EP10766898.0

申请日：2010-02-24

申请人： NSK Ltd.

发明人： HARA, Hiroyuki ,  KANOU, Kazuhiko ,  YOKOTA, Tomoyuki ,  TAKAHASHI, Tetsuya

IPC分类号： F16C19/30 ,  F16C33/58 ,  F16C33/64 ,  F16C35/06

CPC分类号： F16C19/305 ,  B23P15/003 ,  F16C19/30 ,  F16C33/588 ,  F16C33/64 ,  F16C35/06 ,  Y10T29/49645

摘要： At a plurality of locations along a circumferential direction on a cylindrical portion 77c, cutout portions 90 are formed such that each of the cutout portions is recessed in an axial direction from a distal edge of the cylindrical portion 77c toward a race portion 76a. A protrusion is provided at a portion closer to the race portion 76a from a bottom edge of each of the cutout portions 90 such that the protrusion protrudes in a radial direction from the cylindrical portion 77b toward a side away from the race portion 76a. The protrusion serves as a race-retaining locking portion 91 to prevent a race 74a from moving out from a mating member on which the race 74a is mounted. In this way, there is provided a structure by which durability can be ensured even when rigidity of a portion backing up the race 74c is low, and manufacturing cost can be reduced.

公开(公告)号：EP2423524A1

公开(公告)日：2012-02-29

申请号：EP10766898.0

申请日：2010-02-24

申请人： NSK Ltd.

发明人： HARA, Hiroyuki ,  KANOU, Kazuhiko ,  YOKOTA, Tomoyuki ,  TAKAHASHI, Tetsuya

IPC分类号： F16C33/64

CPC分类号： F16C19/305 ,  B23P15/003 ,  F16C19/30 ,  F16C33/588 ,  F16C33/64 ,  F16C35/06 ,  Y10T29/49645

摘要： At a plurality of locations along a circumferential direction on a cylindrical portion 77c, cutout portions 90 are formed such that each of the cutout portions is recessed in an axial direction from a distal edge of the cylindrical portion 77c toward a race portion 76a. A protrusion is provided at a portion closer to the race portion 76a from a bottom edge of each of the cutout portions 90 such that the protrusion protrudes in a radial direction from the cylindrical portion 77b toward a side away from the race portion 76a. The protrusion serves as a race-retaining locking portion 91 to prevent a race 74a from moving out from a mating member on which the race 74a is mounted. In this way, there is provided a structure by which durability can be ensured even when rigidity of a portion backing up the race 74c is low, and manufacturing cost can be reduced.

摘要翻译： 在圆筒部77c的圆周方向的多个位置，形成切口部90，使切口部沿轴向从圆筒部77c的远端朝向座部76a向轴方向凹陷。 从每个切口部分90的底边缘的更靠近滚道部分76a的部分设置突起，使得突起从径向方向从圆筒部分77b向远离滚道部分76a的一侧突出。 突出部用作座圈保持锁定部91，以防止座圈74a从安装有座圈74a的配合构件移出。 以这种方式，提供了即使在支撑座圈74c的部分的刚性低的情况下也能够确保耐久性的结构，并且可以降低制造成本。