A rolling bearing includes an outer ring having an outer surface configured to be fitted into a first component, an inner ring having an inner surface configured to be fitted onto a second component, at least one rolling element arranged between the outer ring and the inner ring, and a polymer composite sheet bonded to the outer surface of the outer ring and/or to the inner surface of the inner ring by a bonding agent.

The invention discloses a bearing ring. The bearing ring, with a body, has an electrically insulating coating made up of a ceramic layer with pores and a plastic for filling the pores and coating the ceramic layer. According to the invention, the pores have a proportion between 10 and 50% in the ceramic layer. The invention furthermore defines an electrically insulating coating, made up of a ceramic layer with pores and a plastic for filling the pores and coating the ceramic layer. The invention further still discloses a method for applying an electrically insulating coating to a body of a bearing ring.

A rolling element bearing comprising inner and outer rings; a plurality of rolling elements disposed between opposing surfaces of the inner and outer rings; and a bearing shield comprising a first member having an annular surface facing the plurality of rolling elements, the first member either (1) extending from the inner ring towards the outer ring (defining a gap between the first member and the outer ring) and the inner ring having a low surface energy surface adjacent the gap, or (2) extending from the outer ring towards the inner ring (defining a gap between the first member and the inner ring) and the inner ring comprises a low energy surface adjacent the gap. The low energy surfaces each have a surface energy of 0.028 N/m.

A flexible insulating liner strip or member comprises an elongated flexible structure that can be cut to length and positioned between a race of a bearing and a bearing housing to electrically insulate the bearing race from the bearing housing and/or other components. The flexible insulating liner strip may be segmented to provide flexibility, and one or more portions of the flexible insulating liner strip may be curved to accommodate variations in the dimensions of bearing housings and races. The flexible insulating liner strip provides a cost-effective way to electrically insulate bearings.

A bearing device includes an inner ring and an outer ring. At least one of the radially inner surface of the inner ring and the radially outer surface of the outer ring is covered with a coating layer. The coating layer is a coating layer composite composed of a plurality of layers. Of the plurality of layers, the surface layer is composed of an anti-creep film having lubricity, and at least one layer other than the surface layer is composed of an insulating film having insulating properties.

An insulating bearing includes an outer ring, an inner ring, and rolling elements arranged between the outer and inner rings. One of the outer and/or inner ring is an insulated ring having a body and an insulating layer overmolded on the body. The insulating layer has a dielectric constant lower than 5 @ 1 MHz, more preferably lower than 4 @ 1 MHz, more preferably lower than 3.5 @ 1 MHz. The present disclosure also provides a method for manufacturing an insulating bearing. The method includes overmolding the insulating layer so that the weld seam of the insulating layer after overmolding avoids the main force-loading area of the insulated ring and/or is formed where the thickness of the insulating layer is the maximum. By overmolding, the insulating layer provides sufficient insulation even when there is high voltage and high frequency current, thereby preventing electrical corrosion of the bearing.

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.

A bearing assembly includes a bearing having a first bearing ring, a second bearing ring rotatably disposed relative to the first bearing ring, and a plurality of rolling elements in a bearing interior defined by the first bearing ring and the second bearing ring. Also, at least one layer of non-metallic material on the first bearing ring configured to conduct heat away from the first bearing ring and to electrically insulate the first bearing ring and to fill at least one cavity between the first bearing ring and a component to which the first bearing ring is mounted. The at least one layer may be a first layer of a heat-conducting material and a second layer of a different, electrically insulating material.

A bearing assembly of an electric drive assembly for a vehicle includes an insulating device having a sleeve with an electrically insulating coating, and a bearing device disposed in the sleeve. In an example embodiment, the sleeve has an inner peripheral surface and an outer peripheral surface, and the outer peripheral surface is formed by the electrically insulating coating. In an example embodiment, the sleeve is formed from steel, and the electrically insulating coating is formed from a plastic material having an electrically insulating property. In an example embodiment, the sleeve is designed as a cylinder having an end face with an outer side, and the electrically insulating coating is disposed on the outer side. In an example embodiment, the bearing device is a floating bearing axially movable relative to the sleeve.

A bearing device includes a first ring and a second ring configured to rotate relative to one another and an insulating sleeve formed from a bushing and an electrically insulating lining. The lining is overmolded on the bushing and on the second ring and connects the bushing to the second ring. The radial internal or external surface of the bushing incudes at least one helicoidal groove and the lining incudes at least one fastening rib having a shape complementary to a shape of the at least one helicoidal groove that extends into the at least one helicoidal groove. The helicoidal groove extends circumferentially at least 360 degrees around the radial internal or external surface of the bushing or the radial internal surface of the bushing.