Ball carrier as well as methods for the preparation of a spherical carrier for a trailer coupling, trailer coupling and method for measuring a bending angle

Ball support for a trailer coupling, in particular for a motor vehicle, preferably a polymer formed from a tractor and a Tractor-trailer combination, with a coupling ball arranged at a free end of the ball support, with a non-contact device for detecting the rotation of a traction coupling for a trailer is spaced from the ball relative to the hitch ball when the traction coupling rotatable on the hitch ball and / or is mounted pivotably, wherein the means the ball carrier, in particular completely encloses and spaced.