Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An integration kit is disclosed herein that allows for mounting of a resolver trigger wheel relative to a bearing assembly, resolver, and rotor. The integration kit simplifies assembly and saves space. The integration kit includes a resolver integration sleeve that includes a first axial section including a radially inner surface defining a bearing support and radially inwardly extending flange defining an axial abutment surface. The resolver integration sleeve also includes a second axial section including at least one anti-rotation slot dimensioned to receive a portion of a trigger wheel, at least one anti-rotation tab extending axially towards the first axial section and dimensioned to be received by a rotor, at least one securing tab extending radially outward and configured to engage a trigger wheel, and a radially outwardly extending flange.

Abstract: A hydrodynamic bearing includes an annular washer having an annular face configured to form a hydrodynamic thrust bearing. The annular face defines a plurality of circumferentially spaced oil grooves having opposing first and second lips extending between inner and outer diameters of the face. The annular face further defines a plurality of circumferentially spaced thrust segments alternating with the grooves such that each of the thrust segments is disposed between an associated pair of first and second ones of the grooves. Each of the thrust segments includes a land that is raised on the face relative to the first and second lips of the associated pair, a first ramp extending from the second lip of the first groove to a first side of the land, and a second ramp extending from the first lip of the second groove to a second side of the land.

Abstract: A hydrodynamic bearing includes an annular washer having an annular face configured to form a hydrodynamic thrust bearing. The annular face defines a plurality of circumferentially spaced oil grooves having opposing first and second lips extending between inner and outer diameters of the face. The annular face further defines a plurality of circumferentially spaced thrust segments alternating with the grooves such that each of the thrust segments is disposed between an associated pair of first and second ones of the grooves. Each of the thrust segments includes a land that is raised on the face relative to the first and second lips of the associated pair, a first ramp extending from the second lip of the first groove to a first side of the land, and a second ramp extending from the first lip of the second groove to a second side of the land.

Abstract: An integration kit is disclosed herein that allows for mounting of a resolver trigger wheel relative to a bearing assembly, resolver, and rotor. The integration kit simplifies assembly and saves space. The integration kit includes a resolver integration sleeve that includes a first axial section including a radially inner surface defining a bearing support and radially inwardly extending flange defining an axial abutment surface. The resolver integration sleeve also includes a second axial section including at least one anti-rotation slot dimensioned to receive a portion of a trigger wheel, at least one anti-rotation tab extending axially towards the first axial section and dimensioned to be received by a rotor, at least one securing tab extending radially outward and configured to engage a trigger wheel, and a radially outwardly extending flange.

Abstract: In a motor assembly, a rotor and a trigger wheel are each secured to a first race of a four-point contact ball bearing. The circumferential position of the rotor and trigger wheel are each fixed with respect to the first bearing, and therefore with respect to one another. A resolver sensor is bolted to a housing. A second race is mounted at a fixed axial position relative to the housing, thereby locating the trigger wheel with respect to the resolver sensor. In some embodiments, the first race may be an inner race and the second race an outer race. In other embodiments, the first race may be an outer race and the second race an inner race.

Abstract: In a motor assembly, a rotor and a trigger wheel are each secured to a first race of a four-point contact ball bearing. The circumferential position of the rotor and trigger wheel are each fixed with respect to the first bearing, and therefore with respect to one another. A resolver sensor is bolted to a housing. A second race is mounted at a fixed axial position relative to the housing, thereby locating the trigger wheel with respect to the resolver sensor. In some embodiments, the first race may be an inner race and the second race an outer race. In other embodiments, the first race may be an outer race and the second race an inner race.

Abstract: A sealing assembly for a cup bearing of a universal joint includes a seal sub-assembly configured to be positioned in a space between a cup of the cup bearing and a trunnion of the universal joint. The seal sub-assembly includes an elastic sealing member configured to contact an outer surface of the trunnion, and a seal insert attached to the elastic sealing member and configured to contact an inner surface of the cup. The seal insert includes an extension portion configured to contact and extend away from a rim surface of the cup. The sealing assembly further includes an external shield including an inner portion and an outer portion. The inner portion is configured to contact the outer surface of the trunnion, and the outer portion is attached to the extension portion of the seal insert.

Abstract: A sealing assembly for a cup bearing of a universal joint includes a seal sub-assembly configured to be positioned in a space between a cup of the cup bearing and a trunnion of the universal joint. The seal sub-assembly includes an elastic sealing member configured to contact an outer surface of the trunnion, and a seal insert attached to the elastic sealing member and configured to contact an inner surface of the cup. The seal insert includes an extension portion configured to contact and extend away from a rim surface of the cup. The sealing assembly further includes an external shield including an inner portion and an outer portion. The inner portion is configured to contact the outer surface of the trunnion, and the outer portion is attached to the extension portion of the seal insert.

Abstract: A method of providing lubricant to a bearing assembly is provided. The method includes providing a bearing assembly including a housing with an inner surface that forms an outer race, a plurality of rolling elements that roll on the outer race, and a packet having a rupturable membrane and a predetermined volume of lubricant therein. At least one of a shaft or a cage is inserted into the bearing assembly and ruptures the packet via engagement of the packet with at least one of the shaft or the cage such that the volume of lubricant is distributed to contact surfaces of the bearing assembly.

Abstract: A bearing assembly including a formed raceway in a metal sheet is provided. The bearing assembly includes a plurality of spherical rolling elements and a thin-walled bearing ring. The thin-walled bearing ring is comprised of a metal sheet having a raceway formed in the metal sheet on which the plurality of spherical rolling elements run. A portion of the metal sheet opposite the raceway protrudes beyond a thickness of the metal sheet.

Abstract: A thrust bearing having a circular cage with rolling elements disposed in at least some of pockets formed in the cage, upper and lower raceways having inward-facing surfaces disposed adjacent to the cage so that a first plurality of rolling elements is in rolling contact with the upper and lower raceways when the thrust bearing is in a first load condition and a second plurality of rolling elements is in rolling contact with the upper and lower raceways when the thrust bearing is in a second load condition.

Abstract: A method of providing lubricant to a bearing assembly is provided. The method includes providing a bearing assembly including a housing with an inner surface that forms an outer race, a plurality of rolling elements that roll on the outer race, and a packet having a rupturable membrane and a predetermined volume of lubricant therein. At least one of a shaft or a cage is inserted into the bearing assembly and ruptures the packet via engagement of the packet with at least one of the shaft or the cage such that the volume of lubricant is distributed to contact surfaces of the bearing assembly.

Abstract: A seal, which has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion that extends radially outward beyond the flange and encompasses the end surface of the flange. Also, a bearing arrangement is disclosed which includes a bearing cup that has a counterbore with a conical inner surface, and a seal, which is contactable with the bearing cup, and has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion which extends radially outwardly beyond the flange and encompasses the end surface of the flange. The seal can be press-fit with the bearing cup such that the over-molded portion and the conical inner surface of the bearing cup are in tight contact with each other and form a static seal.