Schaeffler Technologies Ag & Co .kg

Venkata Kottapalli

Guihui Zhong

Marion Jack Ince

John O Tate

Charles Schwab

Michael Heaton

James Brown

Joseph T Griffin

Arjun Kailassh Magalingam Adithyan

Hareshkumar Dalsaniya

Daniel Wise

An insulated bearing includes an outer ring, a plurality of rolling elements, a first aluminum insulating cap, and a second aluminum insulating cap. The outer ring has an inner rolling surface and an outer spiral groove, and the plurality of rolling elements are in rolling contact with the inner rolling surface. The first aluminum insulating cap screwed onto the outer ring from a first axial end. The first aluminum insulating cap has a first inner spiral, complementary to the outer spiral groove. The second aluminum insulating cap is screwed onto the outer ring from a second axial end, opposite the first axial end. The second aluminum insulating cap has a second inner spiral, complementary to the outer spiral groove.

Insulated bearing

A bearing shunt includes a metal washer, a conductive washer made from a carbon fiber mesh, and a metal cover. The metal washer includes a first annular surface, a lip protruding axially from the first annular surface, and a first plurality of lubricant flow holes. The conductive washer includes a second annular surface contacting the first annular surface and a second plurality of lubricant flow holes aligned with the first plurality of lubricant flow holes. The metal cover is disposed radially inside of the lip and contacts the conductive washer. The metal cover includes a third plurality of lubricant flow holes aligned with the first plurality of lubricant flow holes.

Bearing shunt

An insulated bearing includes an outer ring, a plurality of rolling elements, and an insulating cap. The outer ring has an inner rolling surface and an outer spiral groove, the rolling elements are in rolling contact with the inner rolling surface, and the insulating cap is screwed onto the outer ring. The insulating cap has an inner spiral, complementary to the outer spiral groove. In an example embodiment, the outer spiral groove comprises a cross-section having a shape selected from the group consisting of a rectangle, a triangle, and a trapezoid. In an example embodiment, the outer spiral groove has between 2 and 4 revolutions. In an example embodiment, the outer spiral groove has a width of 4 millimeters or less.

A bearing assembly is disclosed herein. The bearing assembly includes an outer bearing ring including at least one first connection element. The assembly also includes a cap defining an axial portion and at least one radial portion defining a cavity configured to receive the outer bearing ring. The cap includes at least one second connection element configured to mate with the at least one first connection element. The cap is formed from an electrically insulating material to prevent EDM.

Insulating cap for bearing assembly

A bearing includes an integrated electrical shunt. The shunt includes electrically conductive fibers sandwiched between two washers, at least one of which is electrically conductive. The fibers are fastened to the electrically conductive washer by electrically conductive epoxy. An outer shield protects the fibers. The outer shield is held to the washers by a drawn cup. The washers, the drawn cup, and the outer shield all have oil drain holes to allow lubricant to flow to the rollers.

Bearing with an integrated electrical shunt

An improved arrangement and method for preventing bearing ring creep is disclosed herein. The method includes providing a bearing ring including a radial surface having at least one spiral groove. The at least one groove has edge breaks connecting lateral sides to the radial surface of the bearing ring. The method includes arranging the bearing ring inside of a housing or around a shaft such that the radial surface of the bearing ring is arranged adjacent to an inner surface of the housing or an outer surface of the shaft. The edge breaks of the bearing ring frictionally engage with the shaft or the housing to prevent creep of the bearing ring.

Creep mitigation design for bearing assembly

An outer ring for a deep groove ball bearing assembly is disclosed. The outer ring includes a radially inner surface defining a raceway, and a radially outer surface defining a single groove extending between axial ends of the outer ring. The single groove contacts at least one axial end face of the outer ring.

Lubrication groove for deep groove ball bearing

A bearing includes an inner ring having an outer surface defining a first pocket therein. The surface of the first pocket can be provided with a first conductive coating. The bearing includes an outer ring concentric with and radially outward from the inner ring. The outer ring has an inner surface defining a second pocket therein, and a surface of the second pocket can be provided with a second conductive coating. A plurality of rolling elements are disposed between the inner ring and the outer ring. An electrically-conductive shunt ring assembly couples the inner ring to the outer ring and is configured to inhibit electrical current passing between the inner ring and outer ring from passing through the rolling elements. The shunt ring assembly is sized and configured to enable lubricant to flow freely through the bearing. In some embodiments, the shunt ring is a conductive snap ring.

Electrically isolated non-sealed bearing

A deep groove ball bearing assembly is disclosed. The assembly includes an inner bearing ring defining an inner race, an outer bearing ring defining an outer race, and a plurality of rolling elements supported on the inner race and the outer race. A shaft is supported on a radially inner surface of the inner bearing ring, and a housing is supported on a radially outer surface of the outer bearing ring. The assembly includes a contact surface on at least one of: the inner bearing ring, the outer bearing ring, the shaft, or the housing. The contact surface includes at least one lubrication groove.

Growing community of inventors

Fort Mill, SC, United States of America

Venkata Kottapalli