SEALING DEVICE AND ROTARY FEEDER

PROBLEM TO BE SOLVED: To provide a sealing device easy to be enlarged in size and having durability for a long time, in regard to a sealing device for sealing in the rotary axial direction of the rotor. SOLUTION: This sealing device 11A for sealing in the rotary axial direction of the rotor 9 between an inner wall 3A of a body 3 of equipment and the rotor 9 has a ring-like first brush 13 fixed to the rotor 9 and extended till a tip thereof is brought in contact with the inner wall 3A, a ring-like second brush 15 separated from the first brush 13 in the rotary axial direction, a ring-like space SP1 surrounded by the first brush 13, the second brush 15, the inner wall 3A and the rotor 9, and a grease supplying means 25 for supplying the pressurized fiber-mixed grease to the ring-like space SP1. COPYRIGHT: (C)2005,JPO&NCIPI