Insulating device for a bearing

An insulated bearing assembly comprising:

• a bearing mountable within a housing;
• wherein the bearing has an inner ring and an outer ring and a plurality of rolling elements disposed therebetween;
• wherein the outer ring has an outer circumferential surface and opposing axial ends;
• and
• wherein at an insulation device on the outer circumferential surface of the outer ring;
• wherein the insulating device comprises:
• a first annular part, which is configured to be in contact to the outer circumferential surface of the outer ring, and
• a second annular part, which is also configured to be in contact to the outer circumferential surface of the outer ring, wherein the first annular part and second annular part form the insulation device which is configured to contact, in an assembled state of the bearing in the housing both the outer ring and the housing,
• wherein the first annular part and the second annular parts are separate and distinct parts,
• wherein the first annular part is thermally conductive and electrically insulating, and
• wherein the second annular part is electrically insulating, and less thermally conductive than the first annular part.