Motor vehicle wheel hub bearing unit, has device for real time detection of variations in surface axial position from elastic deformation of flange caused by forces transferred from wheel to flange

摘要

The unit has an integral or attached radial flange (7) on the hub (1) for attaching a wheel (8) and a measurement device (14) attached to a non-rotating part (12) of the vehicle and facing an essentially radial surface (13) secured to or integrated with the flange for real time detection of variations in the axial position of the surface on the basis of elastic flange deformation caused by forces transferred from the wheel to the hub flange.