To provide a bearing device for a socket for electrically connecting a tow vehicle and a towed vehicle to each other in which invasion of foreign matter such as water or dust can be prevented in an actuation position.

A bearing device for a socket 3 for electrically connecting a tow vehicle and a towed vehicle to each other comprises a standard bearing element 1 to be installed at a height of a rear bumper of the tow vehicle, and a bearing element 2 for the socket 3 rotatable relative to the standard bearing element 1. The standard element 1 and the rotatable bearing element 2 are connected to each other by a plastic hinge 5.