Crane having a crane jib, in particular a bracket crane

Crane having a laterally projecting crane jib on which a hoisting device is disposed and which is connected to at least one support body which, together with the crane jib, configured to travel along an upper running rail and a lower running rail via travelling mechanisms, wherein in each case the upper and the lower running rails and accordingly the travelling mechanisms are disposed so as to be vertically spaced apart from each other, wherein the at least one support body is formed as a structural unit and on which connection surfaces are disposed, to which in each case one of the travelling mechanisms and the crane jib can be releasably attached, wherein a crane jib connection surface is disposed on the crane jib and a travelling mechanism connection surface is disposed on each travelling mechanism, and wherein connection bores are provided on the connection surfaces, crane jib bores are provided on the crane jib connection surface and housing bores are provided on the travelling mechanism connection surfaces.