| 摘要 |
The invention relates to a wheel suspension, especially for nonpowered vehicle axles comprising a wheel hub (7) which is rotatably mounted on an axle stub (2) using roller bearings (5, 6) and which is held by an axle nut (10) that is screwed onto the free end of said axle stub (2). The aim of the invention is to prevent excessive tightening torques of the axle nut. To this end, the axle nut consists of an inner part (16) that, by means of an inner thread, can be screwed onto a corresponding outer thread (15) of the axle stub, and consists of an outer part (17), which is coaxial thereto and on which the faces (18) for a wrench are configured that are required for tightening and loosening the axle nut. In addition, the outer part (17) is joined to the inner part (16) in a manner that permits it to move and is joined to the inner part (16) by means of one or more detent elements in such a way that a significantly higher torque can be transmitted to the inner part (16) in a loosening direction than in a tightening direction. To this end, the outer part is preferably provided with an axial denticulation (26) with which it engages, in a spring-loaded manner, inside a corresponding meshing denticulation (27) of the inner part (16). The denticulation is provided with flanks which, in the case of the outer part (17), are ramp-shaped in a tightening direction and are steep in a loosening direction. |
