公开(公告)号：US5415705A

公开(公告)日：1995-05-16

申请号：US86858

申请日：1993-07-07

申请人： Kyozaburo Furumura ,  Hiroshi Narai ,  Shuji Wada

发明人： Kyozaburo Furumura ,  Hiroshi Narai ,  Shuji Wada

IPC分类号： C21D9/36 ,  C21D9/40 ,  C22C38/00 ,  C22C38/18 ,  C22C38/22 ,  F16C33/30 ,  F16C33/32 ,  F16C33/34 ,  F16C33/62

CPC分类号： C22C38/18 ,  F16C33/30 ,  Y10S148/906 ,  Y10S384/912

摘要： An object of this invention is to provide a rolling bearing which is long enough in serve life even when it is applied with a lubricant mixed with foreign matters, simply by quenching or by carbonitriding it for a short period of time, and which can be formed at a relatively low manufacturing cost. A rolling bearing is formed as follows: The quantities of elements such as C, Si, Mn, Cr and Mo forming a bearing alloy steel, and the quantity of retained austenite are adjusted to be in predetermined ranges, and the steel is quenched and tempered or carbonitrided so that its hardness is in the following range:-2.2.times.(.gamma..sub.R vol %)+810.ltoreq.Hv.ltoreq.-2.2.times.(.gamma..sub.R vol %)+930

摘要翻译： 本发明的目的是提供一种滚动轴承，其即使在与异物混合的润滑剂中施加足够长的使用寿命，也可以简单地通过淬火或在较短的时间内进行碳氮共渗，并且可以形成 制造成本相对较低。 滚动轴承如下形成：将形成轴承合金钢的C，Si，Mn，Cr和Mo等元素的量和残余奥氏体的量调节到预定范围内，并将钢淬火回火 或碳氮共渗，使得其硬度在以下范围内：-2.2×（γR vol％）+ 810

公开(公告)号：US5285978A

公开(公告)日：1994-02-15

申请号：US969441

申请日：1992-10-30

申请人： Makoto Sakano ,  Shozo Horikawa ,  Shuji Wada

发明人： Makoto Sakano ,  Shozo Horikawa ,  Shuji Wada

IPC分类号： A24C5/20 ,  A24C5/14 ,  A24D3/02 ,  B65H19/12 ,  B65H19/18

CPC分类号： B65H19/123 ,  B65H2301/413223 ,  B65H2301/415095 ,  B65H2301/46115 ,  B65H2301/46172 ,  B65H2301/4621

摘要： An automatic web roll changing device is adapted to automatically and continuously supply web rolls to a web supply-connection apparatus on which are replaceably mounted two web rolls from which webs are alternately and continuously drawn out and which connects the trailing end portion of the preceding web to the leading end portion of the following web. This device includes a rotary arm pivoted to the web supply-connection apparatus having, at both ends, hubs carrying the above-mentioned two web rolls, and a web roll storage-mounting unit provided opposite to the web supply-connection apparatus. The web supply-connection apparatus has a rotary head which is rotatable about a vertical axis. From the rotary head horizontally extend a plurality of web roll storing shafts for holding a plurality of web rolls so as to be slidable axially of the shafts. The web rolls on the storing shafts are moved toward the distal ends of the web roll storing shaft by driving units so as to be mounted on the hubs.

摘要翻译： 一种自动卷筒纸卷更换装置适于自动且连续地将卷筒纸卷供给到纸张供应连接装置，纸幅供应连接装置上可互换地安装两个卷纸卷，纸幅从纸幅供应连接装置交替地连续拉出，并且连接前一幅纸幅的后端部分 到下一个网的前端部分。 该装置包括一个转动臂，该旋转臂枢转到卷筒纸供应连接装置，在两端具有承载上述两个卷材卷筒的轮毂，以及卷筒纸卷存储安装单元，设置在卷材供应连接装置的相对侧。 卷筒纸供应连接装置具有可绕垂直轴线旋转的旋转头。 从旋转头水平地延伸多个卷材卷存储轴，用于保持多个卷材辊，以便可轴向地滑动。 储存轴上的卷筒纸通过驱动装置朝卷筒纸卷存储轴的远端移动，以便安装在轮毂上。

公开(公告)号：US5800637A

公开(公告)日：1998-09-01

申请号：US857061

申请日：1997-05-15

申请人： Kenji Yamamura ,  Shuji Wada

发明人： Kenji Yamamura ,  Shuji Wada

IPC分类号： F16C33/62 ,  C21D1/06 ,  C21D9/36 ,  C21D9/40 ,  C22C38/00 ,  C22C38/24 ,  C23C8/22 ,  C23C8/32 ,  F16C33/30

CPC分类号： F16C33/30 ,  C21D9/36 ,  C21D9/40 ,  C22C38/24 ,  Y10S384/912

摘要： In a rolling bearing in which at least one member of an inner race, outer race and rolling elements is made of an alloy steel containing 0.2 to 1.0 wt % of C, 3.0 to 14.0 wt % of Cr and 0.8 to 3.0 wt % of V, the balance being Fe, the member being carburized or carbonitrided, followed by hardening and tempering to secure that the surface carbon concentration C% and the concentrations Cr%+V% of Cr and V satisfy a relationship of C%.ltoreq.0.13 (Cr%+V%)+1.10 and that carbides existing on a surface of the member have an area fraction of 15 to 50%, the rolling bearing has an extending service life even if it is used under lubrication in the presence of foreign matter and exhibits superior wear resistance to be hard to wear even if there occurs a breakage of oil film.

摘要翻译： 在滚动轴承中，内圈，外圈和滚动体的至少一个构件由含有0.2〜1.0重量％的C，3.0〜14.0重量％的Cr和0.8〜3.0重量％的V 余量为Fe，该部件被渗碳或碳氮共混，然后硬化和回火以确保Cr和V的表面碳浓度C％和Cr％+ V％的浓度满足C％<0.13的关系（ Cr％+ V％）+ 1.10，并且存在于构件表面上的碳化物的面积率为15〜50％，即使在有异物的情况下在润滑下使用，滚动轴承也具有延长的使用寿命， 表现出优异的耐磨性，即使发生油膜破裂也难以磨损。