ROTARY JOINT

摘要

A rotary joint is provided with: a cylindrical rotor (1) that has a first end (one end) (1A) thereof coaxially attached to the rotating shaft of a rotating body and that is made to rotate around an axis O; and a casing (11) provided to the outer circumference of the rotor (1). A plurality of sets of seal members (17A, 17B) for sealing the interval between the rotor (1) and the casing (11) and a number of bearing members (19, 21) that correspond to the number of sets of seal members (17A, 17B) and that rotatably support the rotor (1) in the casing (11) are interposed between the rotor (1) and the casing (11) in an alternating manner in the following order from the one end (1A) of the rotor (1) toward the second end (other end) (1B) side: first seal member (17A); first bearing member (19); second seal member (17B); and second bearing member (21).