公开(公告)号：US06612748B1

公开(公告)日：2003-09-02

申请号：US09587023

申请日：2000-06-05

申请人： Masayuki Funatsu ,  Masahiro Mukasa ,  Shinji Abe

发明人： Masayuki Funatsu ,  Masahiro Mukasa ,  Shinji Abe

IPC分类号： F16C3338

CPC分类号： F16C33/416 ,  F16C19/06 ,  F16C33/6614

摘要： A ball bearing has an outer race, an inner race, and a retainer disposed between the outer race and the inner race. The retainer comprises an annular member having a first annular surface and a second annular surface disposed opposite the first annular surface, a plurality of annularly spaced pockets formed in the first annular surface of the annular member, and a plurality of annular spaced fingers each having inner and outer surfaces and projecting generally axially from the first annular surface of the annular member so that the pockets are disposed between adjacent inner surfaces of respective ones of the pairs of fingers, the first annular surface of the annular member having external and internal edges and a plurality of surface portions each disposed between adjacent outer surfaces of respective ones of the pairs of fingers and inclined toward the second annular surface of the annular member from the external edge to the internal edge. Balls are disposed in respective ones of the pockets of the annular member and coact with the outer and inner races.

摘要翻译： 球轴承具有外座圈，内座圈和设置在外座圈和内座圈之间的保持架。 所述保持器包括环形构件，所述环形构件具有第一环形表面和与所述第一环形表面相对设置的第二环形表面，形成在所述环形构件的所述第一环形表面中的多个环形间隔开的凹穴，以及多个环形间隔开的指状物， 外表面和大致轴向地从环形构件的第一环形表面突出，使得凹穴设置在相对的一对指状物的相邻内表面之间，环形构件的第一环形表面具有外部和内部边缘，并且 多个表面部分，每个表面部分设置在相应的一对指状物的相邻外表面之间，并且从外边缘到内边缘朝向环形构件的第二环形表面倾斜。 球体设置在环形构件的相应凹穴中并与外圈和内圈配合。

公开(公告)号：US06217221B1

公开(公告)日：2001-04-17

申请号：US09385358

申请日：1999-08-30

申请人： Shinji Abe ,  Masahiro Mukasa

发明人： Shinji Abe ,  Masahiro Mukasa

IPC分类号： F16C1722

CPC分类号： F16C33/30 ,  F16C33/62 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/1737

摘要： A rolling bearing comprises an inner ring, an outer ring and a plurality of rolling elements therebetween, and is used, for example, in a spindle motor for driving a hard disk. The inner ring is made of, for example, high-carbon chromium steel, the outer ring is made of, for example, stainless steel, and each rolling element is made of ceramics, for example zirconia, of which coefficient of linear expansion is in the range of 7×10−6/° C. to 15×10−6/° C. The bearing rings and the rolling elements are substantially equal to each other in coefficient of linear expansion. Thus, the change in pre-load due to temperature variations is small.

摘要翻译： 滚动轴承包括内圈，外圈和其间的多个滚动元件，并且例如用于驱动硬盘的主轴电机中。 内圈由例如高碳铬钢制成，外圈由例如不锈钢制成，各滚动体由陶瓷（例如氧化锆）制成，线膨胀系数为 范围为7×10-6 /℃至15×10-6 /℃。轴承圈和滚动元件在线性膨胀系数方面基本相等。 因此，由于温度变化导致的预加载变化小。

公开(公告)号：US5733120A

公开(公告)日：1998-03-31

申请号：US561243

申请日：1995-11-21

申请人： Atsushi Yao ,  Masahiro Mukasa

发明人： Atsushi Yao ,  Masahiro Mukasa

IPC分类号： A61C1/05 ,  A61C1/14 ,  F01C13/02

CPC分类号： F01C13/02 ,  A61C1/05 ,  A61C1/14 ,  F16C25/083 ,  F16C19/54 ,  F16C35/077

摘要： There is provided a dental handpiece capable of stably supporting a turbine during high-speed rotation thereof. A projection is provided at each corner portion of a polygonal end surface of a retainer. The projections prevent a conical spring washer from deviating from a centered position relative to the central axis of the turbine. First and second ball bearings for supporting the turbine are axially pressed with a sufficient force which is symmetrical about the central axis of the turbine. A sufficient axial pre-load can be applied to the first and second ball bearings by the conical spring washer, and the conical spring washer is prevented from being displaced.

摘要翻译： 提供了能够在其高速旋转期间稳定地支撑涡轮机的牙齿手柄。 在保持器的多边形端面的每个角部设置突起。 突出部防止锥形弹簧垫圈相对于涡轮机的中心轴偏离中心位置。 用于支撑涡轮机的第一和第二球轴承以足够的力被轴向压紧，所述力围绕涡轮机的中心轴对称。 可以通过锥形弹簧垫圈对第一和第二球轴承施加足够的轴向预载荷，并且防止锥形弹簧垫圈移位。