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US 12,742,473 B2Granted
Bearing device with integrated electric insulation, in particular for an electric machine or motor
AssigneeAktiebolaget Skf
InventorsMickael Chollet, Anthony Simonin, Benoit Arnault
Life of this patent
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Abstract
A bearing device includes a bearing having first and second rings, a bushing, and an electrically insulating insert overmolded between and connecting a first cylindrical surface of the bushing and a second cylindrical surface of the second ring. A convex surface connects the first cylindrical surface of the bushing to a first front face of the bushing, and the convex surface has a first radius of curvature. The convex surface meets the first cylindrical surface at a sharp edge and the convex surface meets the first front face of the bushing at a second sharp edge.
Claims8
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 a first axially facing front face and a second axially facing front face parallel to the first axially facing front face, 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 a first convex surface connects the first cylindrical surface of the bushing to the first front face of the bushing, the first convex surface having a first radius of curvature, and
- wherein 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.
2 more elements
Dependencies are inferred from the claim text.