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US 12,716,450 B2Granted
Electric vehicle drive motor bearing assembly
AssigneeJTEKT Bearings North America LLC
InventorDaniel J. Schertz
Life of this patent
Estimating the term…
Abstract
A bearing assembly comprises a first ring defining a first rolling surface and a second ring defining a second rolling surface opposed to the first rolling surface. A plurality of rolling elements are located between the first ring and the second ring in rolling engagement with the first rolling surface and the second rolling surface. A cup is positioned outside an associated one of the first ring and the second ring. Insulative sheet material interposes the cup and the associated one of the first ring and the second ring, the insulative sheet material being retained in position by the cup.
Claims19
A bearing assembly comprising:
- a first ring defining a first rolling surface;
- a second ring defining a second rolling surface opposed to the first rolling surface;
- the first ring and the second ring each having a first end face, a second end face, and a cylindrical surface between the first end face and the second end face;
- a plurality of rolling elements located between the first ring and the second ring in rolling engagement with the first rolling surface and the second rolling surface;
- a retainer positioned outside an associated one of the first ring and the second ring;
- and
- insulative sheet material interposing the retainer and the associated one of the first ring and the second ring, the insulative sheet material being retained in position by the retainer,
- wherein the retainer is formed as a cup having a first flange, a second flange, and a cylindrical portion respectively retaining the insulative sheet material in relation to the first end face, the second end face, and the cylindrical portion of the associated one of the first ring and the second ring,
- wherein the insulative sheet material comprises a unitary piece of insulative sheet material cut into a selected pattern, wherein the selected pattern has a central hub from which a plurality of arms integrally extend.
6 more elements
A method of insulating a bearing having an inner ring, an outer ring, and a plurality of rolling elements between the inner ring and the outer ring, the method comprising:
- providing a cup having a radial first flange and an open end;
- inserting a unitary piece of insulative sheet material having a central hub from which a plurality of radial arms integrally extend into the cup such that the central hub is adjacent to the first flange and the radial arms are folded perpendicular to the central hub;
- and
- inserting the bearing into the cup such that the insulative sheet material interposes the outer ring of the bearing and an adjacent inner surface of the cup.
1 more element
A bearing assembly comprising:
- a first ring defining a first rolling surface;
- a second ring defining a second rolling surface opposed to the first rolling surface;
- each of the first ring and the second ring has a first end face, a second end face, and a cylindrical surface between the first end face and the second end face;
- a plurality of rolling elements located between the first ring and the second ring in rolling engagement with the first rolling surface and the second rolling surface;
- a cup positioned outside an associated one of the first ring and the second ring, the cup having a first flange, a second flange, and a cylindrical portion;
- and
- insulative sheet material interposing the cup and the associated one of the first ring and the second ring, the insulative sheet material being retained in position by the cup, the insulative sheet material being respectively retained in relation to the first end face, the second end face, and the cylindrical portion of the associated one of the first ring and the second ring,
- wherein the insulative sheet material comprises a unitary piece of insulative sheet material having a central hub from which a plurality of arms integrally extend.
5 more elements
A bearing assembly comprising:
- a first ring defining a first rolling surface;
- a second ring defining a second rolling surface opposed to the first rolling surface;
- each of the first ring and the second ring has a first end face, a second end face, and a cylindrical surface between the first end face and the second end face;
- a plurality of rolling elements located between the first ring and the second ring in rolling engagement with the first rolling surface and the second rolling surface;
- a cup positioned outside an associated one of the first ring and the second ring, the cup having a first flange, a second flange, and a cylindrical portion;
- and
- insulative sheet material interposing the cup and the associated one of the first ring and the second ring, the insulative sheet material being retained in position by the cup,
- wherein the insulative sheet material comprises a single piece of flat flexible insulative sheet material cut into a pattern and folded so that first, second, and third portions of the single piece of flexible insulative sheet material are respectively retained in relation to the first end face, the second end face, and the cylindrical portion of the associated one of the first ring and the second ring.
5 more elements
Dependencies are inferred from the claim text.