Federal-Mogul Motorparts Corporation

Other

Federal-Mogul World Wide, Inc.

Federal-Mogul Corporation

Alexander Karpman

Thomas Byrnes

James J Elterman

Donald Richard Doherty

James Elterman

Donald Doherty

The ball socket assembly includes a housing with an open interior which extends along an axis. A bearing is disposed in the open interior of the housing and has a curved primary contact surface which surrounds the axis and surrounds a stud ball opening. A stud ball is disposed in the opening and is in sliding contact with the primary contact surface for allowing rotation of the stud ball relative to the bearing. The stud ball has an equator and is in sliding contact with the bearing on both sides of the equator. A stud is operably connected with the stud ball. A shoe is further provided and has a pair of supplemental contact surfaces that are biased against the stud ball. The shoe provides the stud with a predetermined rotational torque and also adjusts for wear in the assembly to maintain the performance of the socket assembly.

Ball socket assembly

The ball joint assembly includes a housing which extends along an axis and a bearing. The bearing has an opening that extends between opposite axial ends and presents a curved bearing surface. A stud with an inner bore is positioned in the bearing and has an outer surface which is in sliding contact with the bearing surface to allow the bearing and housing to rotate relative to the stud. The assembly further includes a fastener which is receivable within the inner bore for connecting the stud with a frame of a vehicle. The fastener includes an internal passage which extends from an end of the fastener to a side surface of the fastener, and the stud has a channel which extends from the inner bore to the outer surface for allowing lubrication of the ball joint assembly while the ball joint assembly is installed in the vehicle suspension system.

Ball joint assembly for a control arm

The ball joint assembly includes a housing and a bearing which has an inner surface that extends between open ends and which presents a bearing surface that surrounds a generally spherically-shaped cavity. A stud is provided which has an outer surface with a generally ball-shaped portion that has at least two curved surfaces and at least two recessed surfaces. The bearing has a passage with a slots that extend from one of the ends to the cavity. The ball-shaped portion of the stud is insertable into the cavity of the bearing by aligning the curved surfaces of the stud with the slots of the passage. The stud is rotatable while the ball-shaped portion of the stud is positioned within the cavity to establish slidable contact between the curved surfaces of the stud and the bearing surface of the bearing to allow pivoting of the stud relative to the bearing.

A dust boot with enhanced protection from contaminants and improved lubrication characteristic includes a dust boot body having a housing opening on one end and on an opposing end a stud opening in an upper boot wall. The boot also includes a wiping lip located on an inner face of the upper boot wall in the stud opening, a grease channel on an outer surface of the upper boot wall bounded circumferentially by a rim seal, an offset opening hole through the upper boot wall into the grease channel which is offset from the wiping lip, and a flexible flap portion of said rim seal which is spaced away from said offset opening hole. The dust boot may also include an insert made from a plastic such as nylon housed in the upper boot wall such that the offset opening hole extends through the insert. The insert may also form a portion of the grease channel. The offset opening is preferably spaced opposite the flexible flap to promote the flow of grease around the outer surface of the stud. The dust boot may be incorporated into a joint assembly by placing it in sealing engagement with a housing which holds a stud in articulating engagement.

Dust boot with grease channel

A joint enclosure apparatus includes a dust boot having an opening and a rim located adjacent to the opening, a flexible flap formed as a portion of the rim, and at least one grease relief passage located on an outer surface of the dust boot adjacent to the flexible flap. The dust boot is useful for use in a ball joint assembly which includes a ball stud having a shank portion and a ball portion; a housing adapted to receive the ball portion in articulatable engagement in a ball stud exit end; a dust boot having a shank opening in sealing engagement with the shank portion and a housing opening in sealing engagement with the housing at the ball stud exit end and a rim adjacent to the shank opening; a flexible flap formed as a portion of the rim; and at least one grease relief passage located on an outer surface of the dust boot adjacent to the flexible flap. The grease relief passage may comprise a rib or a recessed channel. The area of the outer surface of the dust boot adjacent to the flexible lip may be undercut to control the relief characteristics of the flexible lip. As grease is flushed from the dust boot, it is directed along a path defined by the grease relief passage. If a dust boot becomes pinched during stud articulation, the grease relief passage provides an escape path for grease after it passes the flap.

Growing community of inventors

Ballwin, MO, United States of America

Alexander Karpman