| 摘要 |
PURPOSE: A rotary joint apparatus is provided to distribute properly the load to the axial direction and improve a contact characteristic by using a thrust bearing to couple a rotary unit to a fixing unit. CONSTITUTION: A rotary joint apparatus includes a fixing unit(10), a rotary unit(20), and a thrust bearing(40). The thrust bearing includes a rotary shaft corresponding to a rotary shaft of the rotary unit. The fixing unit is coupled to the rotary unit by using the thrust bearing. A dielectric body(22) has a cylindrical shape. A signal line is formed in the inside of the dielectric body. The dielectric body is used for insulating the signal line and a shield line. The dielectric body is formed in the inside of the fixing unit and the rotary unit.
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