公开(公告)号：US20040120623A1

公开(公告)日：2004-06-24

申请号：US10733471

申请日：2003-12-12

Applicant: NSK Ltd.

Inventor： Takashi Murai ,  Katsuhiro Yamazaki ,  Haruki Tsutsui

IPC: F16C033/34

CPC classification number: F16C19/40 ,  F16C19/36 ,  F16C19/362 ,  F16C33/36 ,  F16C33/3706 ,  F16C33/4617 ,  F16C2300/02 ,  Y10T29/49694 ,  Y10T29/49712

Abstract: A method of producing rolling elements for a rolling bearing comprises mixing to process rounded elements made of steel balls and spherical rolling elements having outer diameter portion portion becoming a rolling contact face. The rolling contact face has curvatures in an axial direction and a radial direction normal to the axial direction, and has at least one plane. The thus mixed elements are placed and processed in a space between two processing boards opposing each other via the determined space. Thereby, the surfaces of the rounded balls and the rolling elements are processed to be rounded.

公开(公告)号：US20040264825A1

公开(公告)日：2004-12-30

申请号：US10820002

申请日：2004-04-08

Applicant: NSK LTD.

Inventor： Yuko Kamamura ,  Yoshirou Ide ,  Chiharu Karita ,  Iori Nakahara ,  Takashi Murai ,  Osamu Fujii ,  Hiroki Mizuno

IPC: F16C033/34 ,  F16C033/58

CPC classification number: F16C23/08 ,  B24B5/18 ,  B24B5/37 ,  B24B33/04 ,  B24B35/00 ,  F16C33/34

Abstract: Driving rollers 2, 3 which rotate in the same direction are arranged in parallel to each other. A plurality of convex portions 5a, 5b, 5c having different radii of curvature Rr1, Rr2 and Rr3 are formed along the axial direction at opposing positions on the driving rollers 2, 3. A rolling element 4 which is fed into the gap between the driving rollers 2, 3 and rotated is moved along tracks having different radii of curvature Rw1, Rw2 and Rw3 in the axial direction. There is provided a superfinishing grindstone 6 which is pressed on the rolling surface of the rolling element 4 moving on tracks having different radii of curvature to superfinish the rolling surface of the rolling element 4.

Abstract translation: 沿相同方向旋转的驱动辊2,3彼此平行布置。 在驱动辊2,3的相对位置，沿着轴向形成具有不同的曲率半径Rr1，Rr2，Rr3的多个凸部5a，5b，5c。供给到驱动辊2之间的间隙的滚动体4 旋转的辊2,3沿着具有不同的曲率半径Rw1，Rw2和Rw3的轨道在轴向方向上移动。 提供了一种超精加工磨石6，其被压在滚动元件4的滚动表面上，该滚动表面在具有不同曲率半径的轨道上移动，以对滚动元件4的滚动表面进行超精加工。

公开(公告)号：US20020141677A1

公开(公告)日：2002-10-03

申请号：US10093373

申请日：2002-03-11

Applicant: NSK LTD.

Inventor： Takashi Murai ,  Katsuhiro Yamazaki ,  Haruki Tsutsui

IPC: F16C033/34

CPC classification number: F16C19/40 ,  F16C19/36 ,  F16C19/362 ,  F16C33/36 ,  F16C33/3706 ,  F16C33/4617 ,  F16C2300/02 ,  Y10T29/49694 ,  Y10T29/49712

Abstract: A method of producing rolling elements for a rolling bearing comprises mixing to process rounded elements made of steel balls and spherical rolling elements having outer diameter portion portion becoming a rolling contact face. The rolling contact face has curvatures in an axial direction and a radial direction normal to the axial direction, and has at least one plane. The thus mixed elements are placed and processed in a space between two processing boards opposing each other via the determined space. Thereby, the surfaces of the rounded balls and the rolling elements are processed to be rounded.

Abstract translation: 一种用于滚动轴承的滚动元件的制造方法包括混合以处理由钢珠制成的圆形元件和具有变成滚动接触面的外径部分的球形滚动元件。 滚动接触面在与轴向垂直的轴向和径向的曲率上具有至少一个平面。 这样混合的元件通过确定的空间被放置和处理在两个处理板之间的空间中。 由此，圆球和滚动体的表面被加工成圆形。

公开(公告)号：US20030091255A1

公开(公告)日：2003-05-15

申请号：US10287702

申请日：2002-11-05

Applicant: NSK LTD.

Inventor： Hironari Sakoda ,  Shinichi Natsumeda ,  Takashi Murai

IPC: F16C033/58 ,  F16C033/34

CPC classification number: F16C19/225 ,  F16C19/26 ,  F16C33/34 ,  F16C33/585 ,  F16C2240/40

Abstract: A radial roller bearing has: an outer ring; an inner ring; and, a cylindrical roller interposed between the outer ring and the inner ring, the outer and inner rings respectively including flange portions formed in the end portions thereof so as to be opposed to the end face of the cylindrical roller, wherein, in the end face of the cylindrical roller, there is formed a circular-ring-shaped contact portion of the roller end having centers of curvature continuously existing on a circle which lies on a plane parallel to the end face of the cylindrical roller and also the center of the circle is on the rotation axis of the cylindrical roller.

Abstract translation: 一个径向滚子轴承有一个外圈; 内圈 以及插入在所述外圈和所述内圈之间的圆柱滚子，所述外圈和所述内圈分别包括形成在其端部中的凸缘部分，以与所述圆柱滚子的端面相对，其中，在所述端面中 圆筒形滚子的圆环形接触部分，其具有连续存在于位于平行于圆柱滚子的端面的平面上的圆周上的曲率中心的滚子端部，以及圆的中心 在圆筒滚子的旋转轴上。

公开(公告)号：US20030068110A1

公开(公告)日：2003-04-10

申请号：US10075604

申请日：2002-02-15

Applicant: NSK LTD.

Inventor： Masahito Matsui ,  Takashi Murai

IPC: F16C019/00 ,  F16C033/48 ,  F16C033/46

CPC classification number: F16C33/4623 ,  F16C19/26 ,  F16C33/467 ,  F16C33/543 ,  F16C2240/40 ,  F16C2300/02

Abstract: A retainer for a roller bearing includes a pair of annular portions and a plurality of columns 23 provided between the annular portions. A plurality of pockets are defined by the annular portion and the column each for receiving a roller. An indented relief is provided on the corners of the plurality of pockets and the circumferential average width d (mm) of the column at the area where the indented relief is provided, the axial thickness t (mm) of the annular portion at the area where the indented relief is provided, the radius r (mm) of curvature of the indented relief, the average diameter Da (mm) of the roller and the pitch circle diameter dm (mm) of the bearing satisfy a relationship: 0.07nulldmnull20 null(2/dnull4/tnull1/r)nullDa null0.07nulldmnull50.

Abstract translation: 用于滚子轴承的保持器包括一对环形部分，并且设置在环形端口袋之间的多个柱23限定在环形部分和圆锥形部分之间，并且每个用于容纳凹凸的柱被设置 在多个凹穴的多个角的角落和在设置有凹凸的凹凸的区域处的柱的圆周d（mm）处，凹凸形状的indenea的区域处的环形部分的轴向 提供凹凸的径向，滚子的平均直径Da（mm）和轴承的角度（mm）满足关系：a a关系：0.07x dm + 20 <=（ 2 / d + 4 / t + 1 / r ）x Da <= 0.07Xdm + 50。 >

公开(公告)号：US20030012477A1

公开(公告)日：2003-01-16

申请号：US10188037

申请日：2002-07-03

Applicant: NSK LTD.

Inventor： Takashi Murai ,  Shinichi Tsunashima ,  Osamu Fujii

IPC: F16C033/58

CPC classification number: F16C23/088 ,  F16C19/225 ,  F16C19/26 ,  F16C19/364 ,  F16C33/34 ,  F16C33/366 ,  F16C33/585 ,  F16C2240/50 ,  F16C2300/02

Abstract: The contact portion of the end face of a conical roller, which is a portion to be slidingly contacted with a collar portion, is ground such that the outer contour line of the section thereof has a continuously curved line which passes through at least not only the first point but also between the third position and fourth position.

Abstract translation: 作为与套环部分滑动接触的部分的锥形辊的端面的接触部分被磨削成使得其截面的外轮廓线具有连续的曲线，其至少通过不仅 第一点也在第三位和第四位之间。

公开(公告)号：US20040151413A1

公开(公告)日：2004-08-05

申请号：US10758258

申请日：2004-01-16

Applicant: NSK LTD.

Inventor： Hironari Sakoda ,  Shinichi Natsumeda ,  Takashi Murai

IPC: F16C033/58 ,  F16C033/34

CPC classification number: F16C19/225 ,  F16C19/26 ,  F16C33/34 ,  F16C33/585 ,  F16C2240/40

Abstract: A radial roller bearing has: an outer ring; an inner ring; and, a cylindrical roller interposed between the outer ring and the inner ring, the outer and inner rings respectively including flange portions formed in the end portions thereof so as to be opposed to the end face of the cylindrical roller, wherein, in the end face of the cylindrical roller, there is formed a circular-ring-shaped contact portion of the roller end having centers of curvature continuously existing on a circle which lies on a plane parallel to the end face of the cylindrical roller and also the center of the circle is on the rotation axis of the cylindrical roller.