To obtain a plain bearing material having remarkably improved abrasion resistance and load-carrying capacity by incorporating a polytetrafluoroethylene and a chalk in a thermoplastic resin matrix.

A plain bearing material is provided in which, as additives in a matrix of (A) a thermoplastic resin, both (B) a polytetrafluoroethylene (PTFE) and (C) a chalk are present. A is a polyethylene, a polyamide, a polybutylene terephthalate, a polyetheretherketone or the like. B is present in the form of a particle having a particle size ≤10 μm and a specific surface area ≥5 m2/g. C is present in the form of a particle having a particle size ≤20 μm and a specific surface area ≥3 m2/g and is preferably in the crystal modification of a calcite or lime carbonate. In the matrix, A is contained in an amount of 50-95 wt.% and B is contained in an amount of 5-50 wt.%. Furthermore, as one or more additional additives, CaF2, a graphite, a bronze powder as an aggregate or the like may be added. The plain bearing material is superior, particularly in a dry running condition, to the known plain bearing material.