| 摘要 |
A rotary table assembly is configured to prevent torsional deformation of a sealing member on an outer peripheral surface of a rotary joint. The rotary joint has a distributor and a center shaft, which includes two hollow cylindrical center shafts respectively inserted into a through hole from opposite front and back surface sides of a rotatable table. The sealing member makes contact with the outer peripheral surface of the hollow cylindrical center shaft positioned near the front surface of the rotatable table. The distributor has a top region that is successively inserted from the back surface side of the rotatable table into the two hollow cylindrical center shafts, and a basal portion secured to a frame.
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