BEARING DEVICE WITH INTEGRATED ELECTRIC INSULATION, IN PARTICULAR FOR AN ELECTRIC MACHINE OR MOTOR

원문 (중국어)

A bearing device includes first and second rings, a bushing and an electrically insulating insert overmolded between and connecting a cylindrical surface of the bushing and a cylindrical surface of the second ring. A connecting chamfer connects one cylindrical surface of the bushing to a front face of the busing, and the connecting chamfer includes a first convex surface extending from the cylindrical surface of the bushing and having a first radius of curvature, a second convex surface extending from the front surface of the bushing and having a second radius of curvature and a first frustoconical surface extending between and connecting the first convex surface to the second convex surface. The first convex surface meets the first cylindrical surface at a first sharp edge, and the first convex surface meets the first front face of the bushing at a second sharp edge.