Aktiebolaget Skf

Patrick Le Reun

Angelo Vignotto

Andrea Serafini

Claudio Savarese

Fulvio Carlo Nicastri

A radially outer stationary bearing race () defines, on one if its sides, an inner cylindrical surface () and a radial side surface (). A radially inner bearing race () has an outer cylindrical surface () facing the inner cylindrical surface (). A magnetic encoder () in form of an annular disc is fixed onto the outer cylindrical surface () of the inner race () and is protected by a cover of non-ferromagnetic material () mounted on the outer race () and abutting against the radial side surface (). The encoder ()extends radially from the outer cylindrical surface () of the inner race () up to near the inner cylindrical surface () of the outer race (). No sealing device is mounted in the gap between the cylindrical surfaces () and ().

Bearing assembly with a protective cover for an encoder

A hub-bearing unit () has a rotatable outer race () fixable to a wheel and an inner stationary hub () forming a passage () for pressurized air coming from a source of pressurized air mounted onboard of a vehicle. Tightly fitted on the axially outer side of the unit () is a cylindrical cover () defining with the unit () an airtight chamber () communicating with the passage (). The cover () has a through bore () for establishing air communication between the chamber () and a tube (A, B) for conveying pressurized air to the tire. The cover has an outer wall () with a cylindrical portion () axially protruding beyond the hub-bearing unit () so as to provide a cylindrical surface for centering the wheel of the vehicle.

Growing community of inventors

Semblancay, France

Patrick Le Reun