A sealing arrangement for a wheel bearing having a first bearing part and a second bearing part integrally connected to a wheel bearing flange, and rolling bodies being guided between said bearing parts, includes a carrier element and a stop part. The carrier element is connected to the first bearing part, an elastic element is provided on the carrier element, and the carrier element has a fastening section connected to the first bearing part. The elastic element has a sealing lip. The stop part is fastened to the second bearing part and in sliding contact with the sealing lip. The wheel bearing flange has an axial projection provided such that the projection protrudes in the direction of a cavity formed by an axial projection of the first bearing part. An inner surface of the axial projection of the wheel bearing flange forms a seat for the stop part.

A wheel hub bearing for motor vehicles including a rotatable hub provided with a flange for the engagement of the hub to a wheel of a vehicle and provided with a radially outer free portion and a bearing unit provided with a radially outer ring for the engagement of the wheel hub bearing to a knuckle of the vehicle and a radially inner rotatable ring angularly connected to the hub. Furthermore, the wheel hub bearing has a device for detecting a vehicle parameter and provided with an encoder and a sensor in communication with the encoder. The encoder is ridgidly coupled to the radially outer free portion of the flange to jointly rotate with the hub.

A sealing system including an annular support, an annular sealing element and an annular shielding element; a first and a second lip of the sealing element interact slidingly with an abutment surface of the shielding element and each include: a root portion which extends perpendicularly in cantilever fashion from a flange portion of the annular support; a flexing portion, which extends in cantilever fashion from the root portion in an oblique direction with a thinner radial thickness, delimited by an annular internal surface facing the abutment surface and by an annular external surface facing towards the support, consisting of surfaces of revolution generated by segments of circumference; and a contact portion including a wedge-shaped overhang and a step portion flanking the overhang, which forms with the abutment surface a first and a second angle (α, β), the first angle facing the annular support and being smaller than the second angle.

A bearing assembly includes a bearing flange and a flange receptacle having a longitudinal axis, which comprise a mutual axial stop and a fixing for securing the mutual stop position. The fixing is designed as a wedge-type clamp which can be actuated transversely, in particular radially, to the longitudinal axis. The wedge-type clamp clamps the bearing flange and the flange receptacle axially into the mutual stop position. The bearing assembly may be, for example, provided for a robot and its rotary body.

A sealing system including an annular support, an annular sealing element and an annular shielding element; a first and a second lip of the sealing element interact slidingly with an abutment surface of the shielding element and each include: a root portion which extends perpendicularly in cantilever fashion from a flange portion of the annular support; a flexing portion, which extends in cantilever fashion from the root portion in an oblique direction with a thinner radial thickness, delimited by an annular internal surface facing the abutment surface and by an annular external surface facing towards the support, consisting of surfaces of revolution generated by segments of circumference; and a contact portion including a wedge-shaped overhang and a step portion flanking the overhang, which forms with the abutment surface a first and a second angle (α,β), the first angle facing the annular support and being smaller than the second angle.

A rotary bearing (50), especially for harmonic gearing, comprising an outer bearing ring (1b) and an inner bearing ring (1a) arranged therein; whereby the inner bearing ring (1a) and the outer bearing ring (1b) are each provided with at least one receptacle (10, 11) through which, when the two receptacles (10, 11) are in a corresponding position with respect to one another, rolling elements (8) can be inserted through a receptacle opening (22) formed by the two receptacles (10, 11) into an anti-friction bearing between the bearing surface (7) of the inner bearing ring (1a) and the bearing surface (9) of the outer bearing ring (1b), wherein a guide ring (20) for the rolling elements (8) is arranged in at least one of the two receptacles (10, 11) between the receptacle opening (22) and the rolling elements (8).

A labyrinth seal includes a seal case with an inner-diameter leg encircling a rotation axis, and an insert fixed in the seal case and encircling the rotation axis. The labyrinth seal also includes a slinger encircling the rotation axis and wrapping around the inner-diameter leg to cooperate with the seal case to form a first part of a labyrinth path. The slinger rotates relative to the seal case. The labyrinth seal also includes a rotor that encircles the rotation axis, cooperates with the insert to form a second part of the labyrinth path, and interlocks with the insert to limit axial movement of the rotor when the rotor rotates relative to the insert. The labyrinth seal may be combined with a bearing cone, a bearing cup, and a plurality of rollers to form a roller bearing assembly.

A support assembly for movable, rotating or sliding shafts, having a bearing unit having an inner ring, an outer ring, and a row of rolling bodies interposed between the inner and outer rings, a casing, a cover for fluid sealing an opening of an internal seat of the casing, a rear sealing device on a side opposite the cover having a metal screen and a vulcanized rubber liner equipped with an axially outer first sealing lip and with an axially inner second sealing lip, an axially inner sealing device, having a first shield provided with a vulcanized rubber liner having a plurality of sealing lips, the outer ring having a step extending axially inward and provided with a second shield having a vulcanized rubber liner with a plurality of sealing lips.

A rolling bearing includes an outer bearing race and an inner bearing race defining a bearing space therebetween. Rolling elements are mounted in the bearing space. A seal device is at one axial opening of the bearing space and includes a metal ring member with through holes configured such that lubricating oil can pass through the through holes and solid foreign substances cannot pass through the through holes. One of the outer bearing race and the inner bearing race is stationary, and the other is rotatable. The metal ring member is in engagement with the stationary bearing race. A metal or resin sub-ring member, which is a separate member from the metal ring member, is fixed to the rotatable bearing race. Between the metal ring member and the metal or resin sub-ring member, a gap is defined which constitutes a labyrinth seal structure.

In one aspect, a seal case is provided for a roller bearing assembly having a central axis. The seal case includes an annular first end section including a rim configured to engage an outer ring, an intermediate section including a radial wall extending inwardly from the first end section and an axial wall extending axially away from the radial wall and the first end section, and an annular second end section extending radially inward from the axial wall of the intermediate section. The seal case further includes an insert of the first end section made of a first material. The first end section and the radial wall of the intermediate section include a second material joined to the insert. The first material of the insert may be selected to provide improved durability and/or to resist expansion and contraction of the first end section caused by changes in temperature.