Abstract: A thrust bearing for use with an automobile thrust-strut type suspension comprises a lower casing made of resin, an upper casing made of resin, and a bearing piece made of resin. The bearing piece is disposed rotatably within the upper and lower casings upon snap-fitting a hook portion of an annular suspended portion of the upper casing with an engaging portion of an annular protruded portion of the lower casing. The thrust bearing is so adapted that two annular inner labyrinth portions and two annular outer labyrinth portions are respectively formed at inner and outer peripheral portions of the thrust bearing to thereby prevent sufficiently dust from intruding into a sliding surface of the bearing piece.

Abstract: An industrial robot rotation shaft apparatus according to the invention has a waterproof structure obtained by providing the outer surface of a rotatable support (3) with an integrally formed, peripheral skirt portion (3c). A stationary support (2) is provided with a complementary, projecting collar portion (7b) substantially conforming to the inner surface of the skirt portion. The two complementary elements oppose each other while maintaining a small clearance therebetween. This makes it possible to shut out dust, water droplets and the like which would otherwise penetrate the interior of the robot from outside. As a result, rusting of the internal parts and the motor due to water droplets and debris penetrating the same is prevented.

Abstract: A thrust ball bearing for a McPherson strut provides rubbing seals that are integral with rigid plastic housings by making a pair of sealing flanges on the upper housing flexible enough to continuously engage a pair of sloped seal surfaces on the other housing.

Abstract: Sealing device for a thrust bearing has a pair of bearing disks, including a pair of sealing collars (4, 5, 33, 34), and one of the collars being permanently seated on one of the bearing disks and the other collar being free to rotate on the other disk. The sealing collars (4, 5, 33, 34) are provided with integral sealing lips (29), which rest preferably against the facing end surfaces (30, 30a) of the bearing disks (1, 2).

Abstract: Instead of directly injection molding a layer of sealing elastomer to the outside of a metal bearing race, a separately molded sealing member is provided with a design that allows it to be bypass molded with access windows, yet still provide complete sealing.

Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: The combined radial and thrust bearing has an annular series of rollers in the annular space between an inner race and an outer race for taking radial forces. The thrust bearing part includes a pair of axially spaced apart washers at each longitudinal end of the bearing. An annular series of balls are located in the annular space between the washers. The ball bearing retainer is dimensioned so that a very close clearance exists with the two washers in order to maintain a very small labyrinth clearance for sealing purposes.

Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: A unitary molded plastic ball cage for a thrust bearing with axially opposed races has seals molded to the cage separator that break away at assembly for independent sealing operation.

Abstract: A rolling bearing slewing ring comprising two mutually concentric bearing rings between which rolling elements roll, one bearing ring having a seal in sliding engagement with a cylindrical seal contact surface on the other bearing ring, characterized in that the seal contact surface (5) is a finite band (6) of a wear resistant material secured to a retention surface (7,16,22,30,40) of the bearing ring.

Abstract: A sealed thrust ball bearing having a plurality of balls rollable between a first race and a second race and elastic seal members sealing the clearance between the inner peripheral portions of the races and the clearance between the outer peripheral portions of the races. The first race has a hollow cylindrical portion on its inner periphery extending toward the second race with an inner elastic seal member fixedly fitted to an outer side thereof. The second race has a hollow cylindrical portion on its outer periphery extending toward the first race with an outer elastic seal member fixedly fitted to an inner side thereof. The inner elastic seal member has a lip in intimate contact with the inner peripheral portion of the second race. The outer elastic seal member has a lip supporting the axially outer face of the outer peripheral portion of the first race in intimate contact with the face.

Abstract: A sealed thrust bearing including a housing having a circular base, an outer cylindrical wall formed around the outer edge of the base, and a cylindrical hub at the center of the base spaced from and coaxial with the cylindrical wall, a thrust bearing positioned in the space between the wall and hub, the thrust bearing including an inner race centered on said hub, a set of ball bearings seated on the inner race, and an outer race centered on the hub and seated on the ball bearings, the outer wall including a collar formed around the outer edge of the wall and a V-shaped ridge on the inside of the outer edge of the collar located in a position to sealingly engage the outer edge of the outer race and an outwardly angled lip around the inside of the hub positioned to sealingly engage the inner edge of the outer race to thereby seal the bearing lubricant within the housing.

Abstract: A thrust bearing for use in a steerable McPherson strut suspension uses free molded seals, but is sealed at all times regardless of the axial forces acting on the bearing, and is maintained as a unitized structure as well. Retention flanges on the cage interfit with conical sealing surfaces of the races to limit axial race separation and unitize the bearing. Free molded seals with conical walls matching the respective sealing surfaces are maintained in a radial tension against the sealing surfaces by virtue of being supported on the cage and on the sealing surfaces with a stretch fit. The sealing walls are prevented from disengaging the sealing surfaces by the controlled race axial separation, and the tension of the sealing engagement actually increases because of the orientation of the sealing walls and sealing surfaces.

Abstract: A bicycle caliper brake is provided which includes a pair of brake arms each having a brake shoe on one end thereof. A support bolt supports the brake arms rotatably relative to each other. The brake arms each have a boss with a throughbore by which the brake arms are fitted onto the bolt. The bosses are supported on the bolt adjacent to each other. A thrust bearing is interposed between opposite surfaces of the bosses, and a sealing element is disposed at an outer periphery of the thrust bearing between the opposite surfaces of the bosses.

Abstract: A downhole bearing assembly includes concentric inner and outer tubes, with bearings mounted therebetween. A high pressure elastomeric cup seal assembly is mounted between the inner and outer tubes, and at least one metal-to-metal seal is mounted between the inner and outer tubes on each side of the high pressure seal assembly. A pair of pressure balancing systems are provided, each acting to minimize pressure differentials across a respective one of the metal-to-metal seals. The metal-to-metal seals protect the high pressure elastomeric seal assembly and the bearings from contamination by drilling mud, and the pressure balancing systems protect the metal-to-metal seals from excessive differential pressures.

Abstract: A seal for a rolling bearing 30 applicable to a strut-type suspension has a sealing member 40 of the bearing provided with two lips 43 and 47. The lip 43 is at the radial inner side of the member 40 and slidably contacts the outer face of a piston rod 10. The other lip 47 is at the radial outer side of the sealing member so as to contact the outside surface of either a stationary bearing ring 32 or a holding case 38' therefor. The sealing member is further provided with a coupling head 45 engageable with the radial inner tip end portion of a rotary bearing ring 35 so that the sealing member can be made integral with the bearing 30.

Abstract: An improved bearing assembly for a McPherson strut has plastic components adapted for ease of moldability that also cooperate to form a labyrinth seal as well as to unitize the assembly. Upper and lower housing members include trough shaped pathway portions and coaxial sealing grooves that together comprise a concave surface any radial cross section of which does not have a return bend relative to the bearing axis, thus allowing the race members to be molded by an axial draw mold. Each race member also includes retention tabs extending radially into the sealing grooves, backed by axial access slots to also allow the retention tabs to be molded by the same mold. A cage includes cylindrical sealing flanges, each having a convex shape similar to the concave shape of the sealing grooves, thus allowing sealing flanges to be received within respective sealing grooves with a slight clearance, so that the cage is moldable and also forms a non rubbing labyrinth seal.