Rolling-element bearing with seals and purging channel

A rolling-element bearing comprising:

• a first ring assembly and a concentric second ring assembly mounted for rotation relative to the first ring assembly,
• the first ring assembly comprising a first rolling ring having a raceway and a first sealing ring, a first axial surface of the first sealing ring facing away from the first rolling ring and a second axial surface of the first sealing ring abutting the first rolling ring at a first joint, the first sealing ring supporting a first seal element and a second seal element, the second seal element being located axially between the first seal element and the first rolling ring,
• the second ring assembly comprising a second rolling ring having a raceway and a second sealing ring mounted axially to the second rolling ring at a second joint, the second sealing ring having a first axial surface facing away from the second rolling ring and a second axial surface abutting the second rolling ring at the second joint,
• a row of rolling elements between the raceway of the first rolling ring and the raceway of the second rolling ring,
• wherein the first seal element includes a first lip in contact with the second sealing ring and the second seal element includes a second lip in contact with the second sealing ring, the first lip and the second lip delimiting a first chamber between the first sealing ring and the second sealing ring,
• wherein the first lip and the second lip extend obliquely toward each other, and
• wherein a first purging channel extends from a first inlet orifice at the first chamber to at least one external surface of the first ring assembly.