| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary joint having a long life by reducing the friction of a part caused by rotation and restraining the deterioration of the part. <P>SOLUTION: This rotary joint 10 has a rotation part 20 holding a hollow glass pipe A and rotating together with the glass pipe A, and a fixing part 30 rotatably bearing the rotation part 20 and comprises, between the fixing part 30 and the rotation part 20, a seal member 34 and a bearing 35 mounted as a different body from the seal member 34. <P>COPYRIGHT: (C)2004,JPO |
