The invention concerns a plain bearing 1 comprising a hollow-cylindrical plain bearing body 2 and a first flange 3 arranged at a first end 4 of the plain bearing body 2 and extending radially outwardly. The invention further concerns a plain bearing system comprising the plain bearing 1 and a bearing receiving means 11 and a method of assembling the plain bearing system.In order to provide a plain bearing which for the press fit in a bearing receiving means allows greater dimensional tolerances in respect of the bearing receiving means, it is proposed that a ring 6 of axially extending and peripherally spaced collar portions 7 is provided at the second end 5 of the plain bearing body 2, which is in opposite relationship to the first end 4, which collar portions can be bent over outwardly to afford a second flange 8.