公开(公告)号：US20040114843A1

公开(公告)日：2004-06-17

申请号：US10729951

申请日：2003-12-09

申请人： NSK LTD.

发明人： Yuji Shimomura ,  Tomoyuki Aizawa ,  Dai Kinno

IPC分类号： F16C033/58

CPC分类号： F16C33/62 ,  C23C26/00 ,  C23C30/00 ,  F16C19/28 ,  F16C19/388 ,  F16C33/366 ,  F16C2240/40 ,  F16C2240/42 ,  F16C2240/54 ,  Y10S384/907

摘要： A formed film is formed on the surface of a metal substrate made of an iron-based metal. Thereafter, the surface of the formed film is subjected to treatment for lessening surface roughness such as rolling. In this arrangement, a member which exhibits a sufficient seizing resistance even after being freed of formed film can be obtained.

公开(公告)号：US20040028305A1

公开(公告)日：2004-02-12

申请号：US10632832

申请日：2003-08-04

申请人： NSK LTD.

发明人： Kazuo Akagami ,  Tomoyuki Aizawa

IPC分类号： F16C033/76

CPC分类号： F16C33/7813 ,  B21B31/07 ,  B21B31/078 ,  F16C19/388 ,  F16C33/76 ,  F16C33/80 ,  F16C2322/12

摘要： When an inner race 12 rotates at a speed lower than a predetermined speed, a sealing body 27 contacts the sealing face part 21c, but when the inner race 12 rotates at a speed more than the predetermined speed, a contacting pressure to a sealing face part 21c is reduced or the sealing body 27 is isolated so as to form a non-contacting seal, and therefore, for example, at the low speed, the sealing body 27 forms a contacting seal, thereby to compensate a low speed-low sealing ability of the non-contacting seal such as the labyrinth seal, and on the other hand, at high speed rotation, the sealing body 27 reduces the contacting pressure to the sealing face part 21c, otherwise separates therefrom to form the non-contacting seal as the labyrinth seal, whereby it is possible to solve the problem of heating or abrasion at the contacting part. Further, a sleeve 122 is mounted on the supporting edge 12a of the inner race 12, thereby to secure the sealing device 120 without processing a screwing hole in the inner race 12. Moreover, the sleeve 122 is optionally processed with a screwing hole 122a, to thereby easily fix the sealing device 120 by the bolt 124.

摘要翻译： 当内圈12以低于预定速度的速度旋转时，密封体27接触密封面部21c，但是当内圈12以大于预定速度的速度旋转时，与密封面部分 21c减小或密封体27隔离以形成非接触密封，因此例如在低速时，密封体27形成接触密封，从而补偿低速低密封性 的非接触式密封件，例如迷宫式密封件，另一方面，在高速旋转时，密封体27减小与密封面部分21c的接触压力，否则由此分离，以形成非接触式密封件 迷宫式密封件，从而可以解决接触部分处的加热或磨损的问题。 此外，套筒122安装在内座圈12的支撑边缘12a上，从而固定密封装置120，而不会在内座圈12中处理螺纹孔。此外，套筒122任选地被加工有螺纹孔122a， 从而通过螺栓124容易地固定密封装置120。