Patent ID: 8002475

Claim:
Protection device for a speed sensor, the sensor being provided with a reading surface which is arranged at a first determined axial distance from an encoder of a rolling contact bearing, and the protection device being coupled to the rolling contact bearing; the protection device comprising: a first pair of scraping tiles, each of the scraping tiles having a scraping edge; a rigid support mounted on a border of the rolling contact bearing and supporting the first pair of scraping tiles; wherein the rigid support is defined by a race mounted inside the border, and wherein the scraping tiles are integral with the race and the first pair of scraping tiles is arranged with the sensor annularly intermediate the scraping tiles and with the sensor spaced annularly apart from each of the scraping tiles, and wherein each of the scraping tiles tapers substantially continuously from the race to the scraping edge and is arranged to lead the sensor in a respective direction of rotation of the encoder.