| abstract |
The synthetic resin thrust sliding bearing 1 slides on the upper surface of the lower annular flat portion 202 and the lower surface of the upper annular flat portion 102 and the upper and lower surfaces of the lower annular recess 204 respectively. At the sliding interface with the lower surface and the upper surface of the thrust bearing piece 300 which contact | connects, base oil is silicone oil, kinematic viscosity in 25 degreeC is 100 cSt or more and 500000 cSt or less, it contains a thickener and mixes roughness 200 or more and 400 or less One silicone grease is interposed. |