Bearing devices with integrated electrical insulation, particularly for electric motors or machines, and associated manufacturing processes

Abstract

[Bearing device with integrated electrical insulation, particularly for electric motors or machines, and associated manufacturing processes] The bearing device comprises a bearing 10 having a first ring 12 and a second ring 14. The device includes at least one insulating sleeve 26 mounted on the second ring 14 and having a bushing 28 and an insulating lining 30 made of electrically insulating material. The insulating lining is overmolded onto the second ring 14 and at least onto one of the outer and inner surfaces of the bushing 28 that define its radial thickness. The device further includes an anti-rotation device 32 provided with at least one first retaining pin 42 housed at least partly inside first grooves 34, 40 of the sleeve, the insulation lining and the second ring, a support 44 on which said first retaining pin is mounted, and at least one axial retaining member 46 of said device.Reference: Figure 1.