| abstract |
(57) [Summary] [Purpose] The coefficient of friction is small, the wear characteristics are excellent, and To provide a sliding material by not damaging a mating member in contact with the sliding material. [Structure] A sliding material composed of an ethylene-tetrafluoroethylene copolymer, pitch-based carbon fibers, and low-molecular weight polytetrafluoroethylene. In particular, it is suitable as a bearing member for a rotating portion and a sliding member for a ball valve. |