Abstract:
A sealing mechanism functioning as a separator between two spaces having different pressures includes: a housing; a shaft inserted into the housing; an annular sealing member sealing a gap by contacting a radial outer surface of the shaft or a radial outer surface of a rotary portion fixed to the shaft; and a lubricant groove storing a lubricant to be supplied between the annular sealing member and the radial outer surface.
Abstract:
A sealing mechanism functioning as a separator between two spaces having different pressures or gases, includes: a housing; a shaft inserted into the housing; and a plurality of annular sealing members sealing a gap by contacting a part of the shaft or a radial outer surface of a rotary portion fixed to the shaft. The respective annular sealing members include materials having different material quality and are disposed at different positions in an axial direction parallel to a center axis of the shaft.