Plain bearing having coated outer and inner rings
AssigneeSKF Aerospace France S.A.S
InventorsXiaobo Zhou, Camille Dayot, Arnaud Turmeau
Life of this patent
Estimating the term…
Abstract
A Plain bearing having an outer ring and an inner ring, the outer ring and the inner ring providing respectively an inner surface and an outer surface intended to cooperate with each other for the relative movement of the outer and inner rings, the inner surface of the outer ring and the outer surface of the inner ring each including a coating including at least one layer. The hardness of the coating on the inner surface of the outer ring is less than the hardness of the outer ring, and the hardness of the coating on the outer surface of the inner ring is greater than the hardness of the inner ring.
Claims10
A plain bearing comprising:
- an outer ring and an inner ring, the outer ring and the inner ring comprising respectively an inner surface and an outer surface intended to cooperate with each other for the relative movement of the outer and inner rings, the inner surface of the outer ring and the outer surface of the inner ring each comprising a coating including at least one layer, wherein
- the hardness of the coating on the inner surface of the outer ring is less than the hardness of the outer ring, and the hardness of the coating on the outer surface of the inner ring is greater than to the hardness of the inner ring.
A method of manufacture of a plain bearing comprising:
- providing an outer ring and an inner ring, the outer ring and the inner ring comprising respectively an inner surface and an outer surface intended to cooperate with each other for the relative movement of the outer and inner rings,
- applying a coating including at least one layer on the inner surface of the outer ring and applying a coating including at least one layer on the outer surface of the inner ring, wherein
- the hardness of the applied coating on the inner surface of the outer ring is less than the hardness of the outer ring, the hardness of the applied coating on the outer surface of the inner ring being greater than the hardness of the inner ring, and the coating of the inner surface of the outer ring being applied by a method selected from:
- laser cladding, thermal spraying and electrolytic plating.
Dependencies are inferred from the claim text.