| 摘要 |
A rotary joint 1 having a rotating part 1a provided with a rotating channel in an axial direction, attached to a shaft, and advancing and retracting in the axial direction and, arranged coaxially, a stationary part 1b provided with a stationary channel in the axial direction, wherein an engagement part which allows relative rotation of a rotating seal part provided at the rotating part 1a and a stationary seal part provided at the stationary part 1b while stopping movement in the axial direction and holds a state in which the two sealing surfaces of said rotating seal part and stationary seal part are made to abut facing each other and wherein a rotation stopping mechanism M restricting relative rotation of the stationary shaft part 8a with respect to the fitting hole 7a about the axis are provided. |
