A boot seal is detachably attached to a joint including: a drive link and link members; and a ball joint for linking them to be relatively rotatable or swivelable. The ball joint includes a ball shank having a shaft section fixed to the drive link and a ball section provided on one end of the shaft section and a holder that is fixed to an end section of each of the link members and that has a ball-receiving section for supporting the ball section in a state where the ball section is surrounded. A cover main body that covers the gap between the ball shank and the holder and that is formed of a flexible material includes through-holes through which the shaft section is made to pass, a slit that continuously extends between the through-holes, and a fastener opening and hermetically closing the slit along the entire length thereof.

Provided are a ball joint and a dust cover that make it possible to suppress contact of a body portion of the dust cover with the vicinity of a flange portion of a ball stud. A dust cover integrally includes: a deformable bellows-shaped body portion made of an elastic body; a fixed portion made of an elastic body and provided on one end side of the body portion; and a sealing portion made of an elastic body and provided on the other end side of the body portion. The sealing portion includes: an inner peripheral sealing portion configured to be slidable on a part of a shank portion on the opposite side of the shank portion from a spherical portion with respect to a flange portion; and a cover portion that continuously covers, in an outer wall surface of the flange portion, a radially outward tip end portion and a part of a portion that decreases in diameter from the tip end portion toward the spherical portion side.

A ball joint includes a grease boot having a snap ring at least partially embedded in an elastomeric body. The snap ring has a C-shaped body that defines a compressible radial gap in the elastomeric body. The snap ring can be at least partially embedded in a flange of the grease boot, with a radially outermost edge of the flange including a first elastomeric shoulder, a second elastomeric shoulder, and an exposed outer wall of the snap ring located between the first elastomeric shoulder and the second elastomeric shoulder.

A ball joint includes a grease boot having a snap ring at least partially embedded in an elastomeric body. The snap ring has a C-shaped body that defines a compressible radial gap in the elastomeric body. The snap ring can be at least partially embedded in a flange of the grease boot, with a radially outermost edge of the flange including a first elastomeric shoulder, a second elastomeric shoulder, and an exposed outer wall of the snap ring located between the first elastomeric shoulder and the second elastomeric shoulder.

A sealing bellows made of an elastomeric material includes: a first end face; a second end face; and a casing having a central axis, the casing being arranged in an axial direction between the first and second end faces, the casing including at least one torsion-compensating element for absorbing torsional movements introduced into the sealing bellows substantially without torsional stress. The first end face includes a first static seal and the second end face includes a second static seal. The sealing bellows is made of a TPE material.

A ball joint (10) capable of stabilizing sliding torque while suppressing cost increase is provided. The ball joint (10) includes a first lubricant (G1) interposed between a ball part (40) of a ball stud (14) and a bearing sheet (13). The ball joint (10) includes a second lubricant (G2) having a higher friction coefficient than the first lubricant (G1) and enclosed inside a dust cover (15).

A boot that protects a moveable joint and retains lubricant associated with the joint. The wall of the boot includes a venting aperture that is protected by a surrounding barrier structure.

A steering system includes an arm, a knuckle, a joint, and a steering sensor. The arm defines a first passage. The knuckle has a knuckle arm defining a second passage. The joint has a ball portion and a shaft portion extending. The ball portion is disposed within the first passage and the shaft portion is disposed within the second passage. The ball portion defines a conical recess that has an opening at an upper end of the ball portion and terminates inside the ball portion with a pocket. The steering sensor has a driveshaft extending along a longitudinal axis into the conical recess. The driveshaft includes a head that engages with the pocket. The ball portion is configured to pivot within the first passage relative to the longitudinal axis and the head. The joint and the driveshaft are configured to rotate together about the longitudinal axis as the knuckle is turned.

Provided are a ball joint and a dust cover of which a seal part can be prevented from being impacted due to great swings of a ball stud. A dust cover 100 includes a deformable body part 110, a fixed part 120 provided to the body part 110 on one end side and fixed to the socket 200, and a seal part 130 provided to the body part 110 on another end side, the seal part 130 has an elastic body part provided integrally with the body part 110 and having an inner peripheral seal part 131 which is configured to slide on the outer peripheral surface of the shaft 310 and a reinforcement ring 150 embedded in the elastic body part, and a tip end surface of the reinforcement ring 150 on a knuckle 400 side is at least partly exposed from the elastic body part and is in contact with the knuckle 400.

A self-retaining wear-pad leveler has a first plate having arms on opposing sides and forming an aperture through the first plate. A rear section is coupled to a rear portion of the first plate and has tabs extending from opposing sides of the rear section. The arms are configured for being retained about a ball of a spherical bearing assembly, and the tabs are configured to cause rotation of the leveler about the bearing when engaged by a component coupled to and rotating about the bearing.