Coated rolling element bearing
AssigneeSKF Engineering and Research Centre B.V.
InventorsBo Olov Jacobson, Eustathios Ioannides, George Tin Yau Wan
Life of this patent
Estimating the term…
Abstract
A rolling element bearing comprises an inner ring (3) and an outer ring (2) each provided with a raceway (4, 5), said rings having land regions (10, 11) on opposite sides of their raceways, and a series of rolling elements (6) which are in rolling contact with the raceways and which are mutually spaced by a cage (7), said cage (7) engaging the land regions (10, 11) of said ring, and at least one of said rings (2, 3) being coated. Said at least one ring is coated with a wear and friction reducing, elastic coating over its full surface.
Claims9
Rolling element bearing, comprising an inner ring and an outer ring each provided with a raceway, at least one of said rings having land regions on opposite sides of the respective raceway, and a series of rolling elements which are in rolling contact with the raceways and which are mutually spaced by a cage, said cage engaging the land regions of said ring, said at least one ring being coated with a wear and friction reducing coating over its full surface including said land regions, wherein the coating comprises two coating layers, a supporting coating of a hard material and on a steel base material, and a MoS2 or WS2 coating layer on top of the supporting coating.
Dependencies are inferred from the claim text.