Insulated bearing and method of manufacturing the same

Abstract

An insulated bearing has an outer ring and/or inner ring as an insulated ring. The insulated ring has a body with a surface having a material removal portion. An insulating layer is overmolded on the body and molded into the material removal portion. A method of manufacturing the insulated bearing includes having a gate used for an injection molding machine for overmolding the insulating layer arranged so the weld seam of the insulating layer after overmolding avoids the main force-loading area of the insulated ring and/or is formed in the insulating layer where the thickness of the insulating layer is at a maximum. The insulated bearing solves the problem of electrical corrosion of bearings used in high-voltage environments. The insulated bearing achieves good electrical insulation and also prevents axial and/or circumferential movement of the insulating layer, improving the electrical performance and life of the insulating layer and the bearing.

Dependencies are inferred from the claim text.