In a heavy-duty draw eye (1) for a vehicle trailer, wherein a straight shaft (3) having a coupling element (2) is arranged in a bearing housing (4), on the side of the shaft (3) facing away from the coupling element (2) a securing element (5) of the shaft ...

In a fifth wheel coupling (1) for coupling a tractor unit (2) to a semi-trailer (3), with a fifth wheel plate (4) for mounting on the tractor unit (2) and an engagement element (5) for mounting on the semi-trailer (3), it is proposed that an angle measurin...