Bearing device with integrated electrical insulation, notably for an electric motor or machine

A bearing device comprising:

• a bearing including a first ring and a second ring configured to rotate relative to each other, the second ring having a first cylindrical surface and a second cylindrical surface radially spaced from the first cylindrical surface,
• a bushing having an axial length and a first cylindrical surface and a second cylindrical surface radially spaced from the first cylindrical surface of the bushing, and
• an electrically insulating insert overmolded between and connecting the first cylindrical surface of the bushing and the second cylindrical surface of the second ring,
• wherein the first cylindrical surface of the bushing includes a first annular band of material projecting toward the second cylindrical surface of the second ring,
• wherein the first annular band of material has a radial surface facing the second cylindrical surface of the second ring,
• wherein the first annular band of material has an axial width less than the axial width of the bushing, and
• wherein the radial surface of the first annular band of material is curved but does not lie on a single cylinder.