A plain bearing bush possesses a hollow cylindrical shape and includes a first hollow cylindrical part of a first material and a second hollow cylindrical part of a second material, with the second hollow cylindrical part being coaxially surrounded by the first hollow cylindrical part. One of the first and second materials is a plain bearing material and the other of the first and second materials is a high-strength material. A plurality of through holes penetrate both the first hollow cylindrical part and the second hollow cylindrical part, with the through holes each having an axis arranged perpendicular to the longitudinal axis of the hollow cylindrical shape.