Patent ID: 7273317

Claim:
A thrust sliding bearing comprising: a first bearing body having an annular surface; a second bearing body which is superposed on said first bearing body so as to be rotatable about an axis of said first bearing body, and has an annular surface opposed to the annular surface of said first bearing body; and an annular thrust sliding bearing piece and an elastic ring superposed on top of each other and interposed between the annular surfaces, wherein said thrust sliding bearing piece has an annular plate portion and at least two annular projecting portions which are integrally formed on one surface of said annular plate portion and are brought into contact with the annular surface of said first bearing body slidably with respect to said annular surface so as to form a hermetically sealed annular space in cooperation with said annular surface, and said elastic ring is interposed between said thrust sliding bearing piece and said second bearing body in contact with another surface of said annular plate portion and the annular surface of said second bearing body, a lubricant being filled in the hermetically sealed annular space.