| 摘要 |
PROBLEM TO BE SOLVED: To provide technology to use even an apparatus with a dimensional error of spindle projecting quantity from an installation surface for a long period of time by precisely supplying oil mist to a sealed part surface mating part by absorbing the error without changing sealed part bearing as well as to use in high speed rotation even when flowing fluid is short of a lubricating function. SOLUTION: Two sealing materials 3, 4 provided with flowing holes of fluid are used, one of the sealing materials is fixed on a front end of a floating sheet 2, the other is installed on a spindle 16 of a machine, the floating sheet 2 is held in a fluid supply hole 14 opened on a casing 1 of a rotary joint directly fixed on the machine free to advance and retreat a cylindrical rear end part to and from a ring recessed part 20 by making a channel 31 in a communicated state, and a discharge port 29 to discharge oil mist 22 from a front end toward a sealed surface mating part and an auxiliary channel 30 to flow the oil mist 22 to the discharge port by receiving it from the side of the casing are provided.
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