ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,678, issued on Nov. 4, was assigned to AKTIEBOLAGET SKF (Sweden).

"Bearing unit for rotary shafts" was invented by Pasquale Frezza (Aversa, Italy), Andrea A. Bertolini (Carrara, Italy) and Renato Berti (Massa, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bearing unit includes a radially outer ring, a radially inner ring, and a sealing device. The inner ring includes a first radially outer surface formed, a second radially outer surface adjacent to the first, and a radial step connecting the radially outer surfaces. The sealing device includes a shaped shield mounted on the outer ring and an elastomer lining the shaped shield. The elastomer ...