公开(公告)号：US06203205B1

公开(公告)日：2001-03-20

申请号：US09351327

申请日：1999-07-12

申请人： Takashi Murai ,  Takashi Yamamoto ,  Shinichi Tsunashima

发明人： Takashi Murai ,  Takashi Yamamoto ,  Shinichi Tsunashima

IPC分类号： F16C3346

CPC分类号： F16C33/4682 ,  F16C19/26 ,  F16C33/4605 ,  F16C33/543 ,  F16C2240/46

摘要： A cylindrical roller bearing comprises an inner race, an outer race, a plurality of cylindrical rollers disposed between the inner race and the outer race, and a cage disposed between the inner race and the outer race and provided with pocket portions in which the plurality of cylindrical rollers are respectively accommodated. The cylindrical roller bearing satisfies a following relations 1.5×10−3D≦H≦9.0×10−3D and A/B=0.6˜1.0 where D is a diameter of a cage circumferential surface of the cage which is either one of inner and outer circumferential surfaces of an axial end portion of the cage, H is a size of an annular clearance between the cage circumferential surface and a race circumferential surface which is either one of an outer race rib inner-diameter surface and an inner race rib outer-diameter surface opposite to the cage circumferential surface, A is an axial length of the cage circumferential surface and B is an axial length of the race circumferential surface. The bearing using a system for guiding the cage a roller guide system in which radial displacement of the cage is limited by engagement between each pocket and a corresponding roller. A roller guide surface of the cage is provided in a portion opposite to a linear-form portion at least except crowning portions in an axial direction of a roller rolling surface.

摘要翻译： 一种圆柱滚子轴承，包括内圈，外圈，设置在内座圈和外座圈之间的多个圆柱滚子，以及设置在内座圈和外座圈之间的保持架， 圆柱滚子分别容纳。 圆柱滚子轴承满足以下关系，其中，D是保持架的保持架圆周表面的直径，其是保持架的轴向端部的内周面和外周面之一，H是保持架之间的环形间隙的尺寸 圆周面和与保持架圆周面相反的外圈肋内径面和内圈肋外径面之一的圆周面，A为保持架周面的轴向长度，B为 圆周面的轴向长度。 使用用于引导保持架的系统的轴承，其中保持架的径向位移由每个凹槽和相应的滚子之间的接合限制。 保持架的辊引导面至少除了滚子滚动面的轴向的隆起部之外，设置在与直线状部分相对的部分中。

公开(公告)号：US06712520B2

公开(公告)日：2004-03-30

申请号：US09890958

申请日：2001-08-08

申请人： Koji Ueda ,  Keijiro Yamaguchi ,  Shinichi Tsunashima ,  Takashi Murai ,  Osamu Fujii

发明人： Koji Ueda ,  Keijiro Yamaguchi ,  Shinichi Tsunashima ,  Takashi Murai ,  Osamu Fujii

IPC分类号： F16C3338

CPC分类号： F16C33/543 ,  F16C19/26 ,  F16C33/56

摘要： A cage is made of a low carbon steel and is for use in a rolling bearing which includes an outer ring, an inner ring and a plurality of rolling elements disposed rotationally between the outer ring and the inner ring. The cage includes a plurality of pockets for retaining the rolling elements in an equi-distribution in the rotating direction of the rolling elements. The low carbon steel is a steel containing from 0.02 to 0.10% by weight of C and from 0.10 to 0.45% by weight of Mn and is subjected to plastic working. The hardness for the pocket surface at least at a portion in contact with the rolling element is Hv 190 to 270, and the hardness for the core portion in the cage section is Hv 110 to 170.

摘要翻译： 保持架由低碳钢制成，用于滚动轴承，该滚动轴承包括外环，内圈和旋转地设置在外圈和内圈之间的多个滚动元件。 保持架包括多个用于沿滚动元件的旋转方向等分布地保持滚动元件的凹部。 低碳钢是含有0.02〜0.10重量％的C和0.10〜0.45重量％的Mn的钢，并进行塑性加工。 至少在与滚动元件接触的部分处的口袋表面的硬度为Hv 190〜270，保持架部的芯部的硬度为110v〜170v。

公开(公告)号：US06767134B2

公开(公告)日：2004-07-27

申请号：US10188037

申请日：2002-07-03

申请人： Takashi Murai ,  Shinichi Tsunashima ,  Osamu Fujii

发明人： Takashi Murai ,  Shinichi Tsunashima ,  Osamu Fujii

IPC分类号： F16C3336

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

摘要： 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.

摘要翻译： 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，该连续曲线至少穿过 第一点也在第三位和第四位之间。