Electrically insulated bearing ring and applications thereof

An electrically insulated bearing ring comprising:

• a bearing ring having an electrical insulation layer configured to stop the passage of leakage currents, the electrical insulation layer including a composite formed of a synthetic resin matrix, a fiber filler for increasing the strength of the composite, and a thermally conductive filler for increasing thermal conductivity of the composite;
• wherein the synthetic resin is polyphenylene ether (PPO) or polyetherimide (PEI), the fiber filler is glass fiber (GF), and the thermally conductive filler is hexagonal boron nitride (h-BN), the glass fibers (GF) and the hexagonal boron nitride (h-BN) have a combined component percentage of between thirty weight percent (30 wt %) and seventy weight percent (70 wt %) and the relative weight ratio of the glass fibers (GF) to the hexagonal boron nitride (h-BN) is between 1:1 and 1.8:1.