A bearing device includes a bearing and a bushing. The bearing has first and second rings, and the bushing has a first axial end and a second axial end and an axial length from the first axial end to the second axial end and a first radial surface and a second radial surface radially spaced from the first radial surface. An electrically insulating insert is overmolded between and connects the first radial surface of the bushing and a cylindrical surface of the second ring. The first radial surface of the bushing is curved but does not lie on a single cylinder.

A bearing device includes a bearing having first and second rings and a bushing having a first cylindrical surface and a second cylindrical surface radially spaced from the first cylindrical surface. An electrically insulating insert is overmolded between and connects the first cylindrical surface of the bushing and the second cylindrical surface of the second ring. The first cylindrical surface of the bushing includes a first annular band of material projecting toward the second cylindrical surface of the second ring, the first annular band has a radial surface facing the second cylindrical surface of the second ring, the first annular bandhas an axial width less than the axial width of the bushing, and the radial surface of the first annular band is curved but does not lie on a single cylinder.

A bearing device includes a bearing having first and second rings, a bushing, and an electrically insulating insert overmolded between and connecting the bushing and a second radial side of the second ring. The second radial side has a cylindrical central portion and a cylindrical lateral part axially and radially offset from the cylindrical center portion. A connection face extends from the first cylindrical lateral part to the cylindrical center portion, and has a plurality of circumferentially spaced grooves. One of a plurality of first ribs of the electrically insulating bushing extends into a respective one of the plurality of first circumferentially spaced grooves. At least a portion of the connection face has a radial component.

A slotted spring disc for a bearing includes an annular portion, a conical portion extending radially inward from the annular portion, and a plurality of slots extending from the annular portion through the conical portion. In some example embodiments, an outer ring of the annular portion is devoid of the plurality of slots. In an example embodiment, each of the plurality of slots extend purely radially inward from the outer ring through the annular portion. In some example embodiments, each of the plurality of slots extend through an entirety of the conical portion. In an example embodiment, each of the plurality of slots extend radially and circumferentially through the conical portion. In an example embodiment, each of the plurality of slots extend diagonally through the conical portion. An insulated bearing assembly including the slotted spring disc is also disclosed.

An electrically insulated bearing ring has an electrical insulation layer, the electrical insulation layer including a composite having a synthetic resin as a matrix, a fiber filler for increasing the strength of the composite and a thermally conductive filler for increasing the thermal conductivity of the composite. An electrically insulated rolling bearing incorporates the electrically insulated bearing ring.

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 on the outer surface of the outer ring and/or the inner surface of the inner ring by a bonding agent, where the polymer composite sheet includes at least one perfluoroalkyl and/or polyfluoroalkyl component.

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 an antimony-free composite coating comprising a binder and a solid lubricant on the outer surface of the outer ring and/or the inner surface of the inner ring.