play free an outside diameter d a of the two plain bearing parts 1 a and 1 b is identical the two plain bearing parts 1 a and 1 b have different heat expansion coefficients u03b1 1 and u03b1 2 k u2212 1 in this case the heat expansion coefficient u03b1 1 of the first plain bearing part 1 a is lower than the heat expansion coefficient u03b1 2 the inside diameter d i1 2 consequently changes differently as a function of the temperature t u00b0 c the result of this is that the first plain bearing part 1 a takes over the guidance and support of the shaft 2 in one specific temperature range u03b4t 1 and the second plain bearing part 1 b takes over the guidance and support of the shaft in the other temperature range u03b4t 2 the temperature dependence of the inside diameter d i1 2 is illustrated in relation to the outside diameter d w of the shaft 2 in fig2 it can be seen that in the temperature range u03b4t 2 below approximately u2212 20 u00b0 c limit temperature with an at least approximately identical expansion coefficient u03b1 1 2 of the two.