Roller bearing having internal lubrication

Abstract

The rolling bearing comprises an inner ring, an outer ring, at least one row of rolling elements disposed between raceways provided on the rings, and an annular housing inside which at least one of the rings is arranged. The ring provides two parts and each of the two parts delimits with the housing a closed space inside which a lubricant is located. The rolling bearing further comprises passage means for the lubricant to pass from the closed spaces to the raceways. The ratio between the thickness of a guiding portion of each of the two parts delimiting the raceway and the outer diameter of the bearing is from 0.7% to 3%. In a second embodiment, the ratio between the thickness of the guiding portion and the outer diameter is and preferably from 1.1% to 1.9%.

Dependencies are inferred from the claim text.