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US 12,723,622 B2Granted
Bearing device with integrated electrical insulation, notably for an electric motor or machine
AssigneeAktiebolaget Skf
InventorsMickael Chollet, Anthony Simonin, Benoit Arnault
Life of this patent
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Abstract
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.
Claims14
A bearing device comprising:
- a bearing including a first ring and a second ring configured to rotate relative to each other relative to a central axis, the second ring having a first cylindrical surface and a second cylindrical surface radially spaced from the first cylindrical surface,
- a bushing having a first axial end and a second axial end and an axial length from the first axial end to the second axial end and having a first radial surface and a second radial surface radially spaced from the first radial surface of the bushing, and
- an electrically insulating insert overmolded between and connecting the first radial surface of the bushing and the second cylindrical surface of the second ring,
- wherein the first radial surface of the bushing is curved but does not lie on a single cylinder.
1 more element
Dependencies are inferred from the claim text.