A dry running mechanical ball joint seal includes a spherical element penetrated by a central passage and suspended between support rings that are pressed by springs against the spherical element and form a sliding dry seal therewith. A lip seal is located between the support rings and includes wipers pressed radially inward by a lip seal spring to form an additional seal with the spherical element. In embodiments directed to piping systems, a fluid is able to flow through the central passage. Other embodiments include a sliding rod directed through the central passage and sealed to the spherical element by a rod support within the central passage and also by at least one rod lip seal having a wiper pressed by a spring against the rod. The rod support can include a compressible packing material and/or a linear ball bearing sealed to the spherical element within the central passage.

The invention relates to a sealing apparatus for sealing the ball joint of a kingpin comprising at least one holding ring and at least one seal ring, wherein the seal ring is provided at least partially within a groove of the holding ring, and wherein the groove is provided in a radially inwardly disposed region of the holding ring.

A dust cover for a ball joint is made up of a dust cover body made of a rubber elastic material and an annular plate member. In the dust cover body, a reinforcement ring is disposed in a stud mounting part, and an annular step is disposed on the inner peripheral side of the reinforcement ring. The plate member is made up of a plate body and an annular sealing part that is made of a rubber elastic material and is accommodated in the annular step. In the outer periphery of the plate body, a plurality of cut parts are formed, so that outer peripheral petal parts are formed between adjacent cut parts to be capable of being bent so as to be engaged with a knuckle groove.

An impact resistant seal includes an annular body extending between a first end and a second end. The annular body includes a first anchor formed on the first end and a second anchor formed on the second end. The impact resistant seal includes an elastomeric section having an exterior surface which extends between the first anchor and the second anchor. The elastomeric section is expandable and contractible in response to movement of the first anchor relative to the second anchor. The impact resistant seal includes a plurality of protrusions extending radially outward from the exterior surface and extending circumferentially around the elastomeric section. Adjacent ones of the plurality of protrusions are spaced apart from one another by a predetermined spacing magnitude configured to accommodate the movement of the first anchor relative to the second anchor.

A ball joint includes an outer race having an exterior surface extending from an outer axial end to an inner axial end thereof and having an interior that has an opening proximate the outer axial end. The ball joint includes a ball with a stem extending therefrom. The ball is disposed in the interior area with the stem extending out of the opening. The ball joint has an anti pull-out collar disposed around the outer race and located entirely beyond a center point of the ball towards the outer axial end of the outer race. The anti pull-out collar has a radial thickness configured to prevent radial expansion of the outer race.

A dust cover that allows a dust lip part thereof to offer sealing performance stably for a long period of time. A sealing part 130 includes an inner peripheral sealing part that can slide relative to an outer peripheral surface of a shaft part, and a dust lip part 132 that can slide relative to an end surface of a knuckle 400, wherein an annular protrusion 135 that protrudes radially outward is formed at an end of the sealing part 130 on the other end side, and at least one of inner and outer peripheral surfaces of the dust lip part 132 extends toward the other end side from recessed parts 132a and 132b of the sealing part 130 being recessed toward one end side with respect to an end surface 135a of the annular protrusion 135 on the other end side.

A rotatable bushing for use in automotive suspension, steering, and other suitable joints is provided. The rotatable bushing includes a housing, an elastomeric portion engaging the outer surface of the housing, and a sleeve positioned within the housing. The sleeve is configured to rotate with respect to the housing and generally includes a central bore for receiving a rod or fastener therethrough. The elastomeric portion is configured to deform such that the sleeve is moveable in at least one of an axial direction and a radial direction with respect to an outer surface of the elastomeric portion.

The improved dust boot includes a dust boot body which is made as one integral piece of an elastomeric material and extends from a first end portion to a second end portion. The second end portion of the dust boot body includes a first sealing portion and a second sealing portion which is spaced from the first sealing portion. The first sealing portion includes a plurality of ribs that are spaced circumferentially from one another by a plurality of grooves and includes a plurality of relief valves that are located in the grooves and extend away from the first end portion for allowing a lubricant to pass the first sealing portion in one direction and for restricting the passage of contaminants past the sealing portion in an opposite direction.

A seal member for a joint between a pivot member movable about a rotational axis of a shaft includes a ring, a flange, and a resiliently flexible intermediate portion interposed therebetween. The ring includes annular distal and proximal ring faces disposed in spaced relationship to each other along a longitudinal axis. The flange includes a pair of flange faces disposed in spaced relationship to each other along the longitudinal axis. The flange includes outer and inner flange surfaces extending along the longitudinal axis between the pair of flange faces at, respectively, outer and inner flange perimeters thereof. The intermediate portion has a ring end that circumscribes, and is connected to, an outer circumferential ring surface of the ring and a flange end that is connected to the inner flange surface of the flange such that the ring is relatively movable with respect to the flange.

Generally described, aspects of the disclosed subject matter are directed to a rotatable bushing, such as, for example, a bushing for use in automotive suspension and steering joints. The rotatable bushing includes a housing, an elastomeric portion engaging the outer surface of the housing, and a sleeve positioned within the housing. The sleeve is configured to rotate with respect to the housing and generally includes a central bore for receiving a rod or fastener therethrough. The elastomeric portion is configured to deflect such that the sleeve is moveable in at least one of an axial direction and a radial direction with respect to an outer surface of the elastomeric portion.