SEALING ASSEMBLY TO BE INTERPOSED BETWEEN TWO RELATIVE ROTATION COMPONENTS, CAPABLE OF ALLOWING THE DETECTION OF THE RELATIVE ROTATION BETWEEN THEM AND BEARING TO SUPPORT A VEHICLE WHEEL PROVIDED WITH SAME

摘要

P There is described a sealing assembly of the type formed by two screens 8, 9 which can be rigidly connected, one of which is fixedly provided with an elastometer sealing element 23 cooperating with the another screen, in which one of the screens is fixedly provided with a sensor 22 (magnetic, inductive, capacitive) while the other is fixedly provided with a reference element 19 provided with a plurality of hollow 18 at regular intervals on a ring, for example a toothed element; the screen 8 provided with the toothed element is rigidly fixed on a rotary member whose speed is to be measured, for example on a flange ring 2 of a bearing with rolling element rigidly fixed to the wheel of a vehicle while the other screen 9 is fixed on the other member, for example the other ring 3 of said bearing, so as to define with said members a chamber 24 housing the sensor 22 and the ferromagnetic element 19 is closed so impervious to fluids from the outside by the elastomer element. /P