ROLLER BEARING WITH INFORMATION SENSOR

摘要

The invention concerns a roller bearing (1) comprising an outer ring (2), an inner ring (4), at least a row of rolling elements (6) arranged between two raceways (3, 5) of the outer (2) and inner (4) rings, sealing means (12) between the outer (2) and inner (4) rings, and a data sensor assembly comprising a non-rotatable sensor unit (19) borne by one of the rings and a rotatable encoding element (20) borne by the other ring. Additional sealing means are provided on the side of the data sensor assembly to isolate said assembly from the inside of the roller bearing by co-operation with the rotating ring in a zone axially located between the encoder active part and the rolling elements.