Aktiebolaget Skf

Other

Daniele Duch

Fausto Morello

Andrea Serafini

Antonia Nastasi

Laura Sguotti

Marco Gemello

Luca Tedeschini

Giorgio Barberis

Aurelien Mesnager

Yi Zhang

Fausto Baracca

Fabio Falaschi

Paolo A Re

Marco Falossi

Maurizio Bertola

Domenico Bosco

Marco Romanetto

Michel Organisciak

Gianmario Fadda

Héctor Villalobos

Davide Bergesio

Pietro Fabio Picatto

Maria Concetta Vulpio

Nikhil Gulhane

Roberto Galante

Héctor Villalobos Valerio

Piero Genualdo

A transmission assembly for vehicles, including a rolling bearing having a sealing device composed of a first annular screen coupled with a stationary outer ring of the bearing and a second annular screen coupled with a rotating inner ring of the bearing. Radially outer first and second L-shaped portions of the first and second screens project axially from the bearing and towards a constant velocity joint, the first L-shaped portion having a first and a second annular lip which form with the second L-shaped portion a radial sequence of labyrinth seals. A third annular sealing lip may be arranged radially downstream of the sequence of labyrinth seals and cooperates in sliding contact with the second screen. An encoder may be mounted on the second L-shaped portion and may have an annular overhang which forms with the first lip a first labyrinth seal.

Sealing device for insertion between two relatively rotating members and associated transmission assembly for vehicles

A rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements housed between the inner ring and the outer ring, and a sealing device. The sealing device includes a first shield connected to the inner ring, a second shield connected to the outer ring to rotate therewith, a first sealing element connected to the second shield and provided with a sealing lip contacting the first shield, and a second sealing element connected to the first shield and facing a radially outer section of the first sealing element, defining a channel therebetween inclined at an acute angle to a common axis of symmetry of the shields and delimited between a conical smooth lateral surface of the first sealing element and a lateral surface of the second sealing element arranged opposite and parallel to the first lateral surface and provided with a plurality of steps.

Low friction sealing device and associated rolling bearing

A sealing device for sealing off a bearing unit from oil contaminants is disclosed herein. The sealing device comprises an annular metallic screen integral to a stationary inner ring, an annular metallic support integral to a rotatable outer ring, and an elastomeric element mounted on the support and comprises a radial lip and an axial lip that cooperate in a sliding and contacting manner with the screen.

Sealing device for a tapered-roller bearing unit

A sealing device for sealing off external contaminants from a bearing unit between a stationary radially outer ring and a rotatable radially inner ring, the sealing device including a first, metallic and rotatable annular screen having a first mounting area for assembly with interference on the radially inner ring, a second, metallic and stationary annular screen having a second mounting area for assembly with interference on the radially outer ring, an annular sealing element made of elastomeric material, integrally supported by the second annular screen, and equipped with at least one contacting annular sealing lip projecting axially and radially from the second screen towards the first screen, and a non-contacting annular lip extending axially and facing a first flange portion of the first annular screen.

Sealing device for a bearing unit

Sealing device for a bearing unit, having a stationary part, in turn provided with a first metal screen formed by an annular shaped portion and by a cylindrical portion radially external with respect to the annular shaped portion, with an elastomer coating, co-moulded on the first screen, having an annular shaped portion and a cylindrical portion, and with a contacting lip, radially internal, forming part of the elastomer coating and axially external with respect to the annular shaped portion, and a rotating part provided with a second metal screen on which the contacting lip makes sliding contact, where the elastomer coating is provided with a lip, non-contacting and radially internal with respect to the cylindrical portion and at least one first radial labyrinth seal (Gr) is formed by a radially outer wing of the second screen and by the lip of the elastomer coating which faces the aforementioned wing.

Optimized sealing device for a bearing unit

A sealing device for a bearing unit, having a stationary part, which is in turn provided with a first metal screen, an elastomer coating co-moulded on to the first screen, and a radially inner contact lip belonging to the elastomer coating, and a rotatable part provided with a second metal screen with which the contact lip makes a sliding contact, the sealing device being provided with at least one appendage which faces a radially inner flanged ring of the bearing unit and interacts with this flanged ring to form a barrier against the entry of contaminants.

Sealing device for bearing unit

Sealing device for a wheel hub unit is disclosed herein, wherein the sealing device being able, during use, to form a static seal for protecting the wheel hub unit from any environmental pollutant and being provided with a screen, which is engaged with a collar of the wheel hub unit and has a bottom wall, a cylindrical side wall integral with and more or less perpendicular to the bottom wall. The sealing device is designed and structured to protect the wheel hub unit from any environmental contaminant that the wheel hub unit may be exposed to during usage.

Sealing device for a wheel hub unit

A speed measuring device for a wheel hub assembly equipped with a rolling bearing. The measuring device having an encoder wheel mounted on a rotating ring of the bearing, a mechanical support disposed between the encoder wheel and the ring to cause the encoder wheel and the ring to be angularly fixed to one another, and a mechanical lock for axially locking the encoder wheel in a seat formed by the mechanical lock together with the mechanical support. The encoder wheel is equipped with a base structure made of plastic material mounted in a seat.

Encoder wheel for wheel hub assembly

A wheel hub assembly for motor vehicles, provided with a first hub, which is stationary, a second hub, which is rotatable, and a bearing unit in turn having a radially outer ring provided with respective radially external raceways, at least one radially inner ring provided with respective radially internal raceways, at least one row of rolling bodies, positioned between the corresponding internal and external raceways, at least one sealing device, positioned on the axially inner side with respect to the at least one row of rolling bodies. A metal deflector configured so as to allow the water to drain and protect the area of the sealing device from the external contaminant is mounted by interference on the rotating hub.

Wheel hub assembly provided with an innovative deflector

A wheel hub bearing unit including an outer ring, rolling bodies and an inner ring provided with a flange at a first end thereof, the inner ring being made with a sliding surface for sealing lips of a sealing device arranged so as to protect the rolling bodies, defined by a metal insert formed integrally with the first end and arranged astride a base portion of the flange and a portion of the first end immediately adjacent to the base portion of the flange. The metal insert has a thickness of between 0.2 and 2 mm and being made, using a material different from the material with which the inner ring is manufactured and consisting of an austenitic stainless steel, by means of additive manufacturing.

Method of manufacturing a wheel hub bearing unit for vehicles and associated wheel hub bearing unit

Sealing unit for a wheel hub group for vehicles that is provided with a roller bearing interposed between a rotary hub for a wheel of the vehicle, and a stationary pin of an upright of said vehicle, the sealing unit in turn comprising an annular pre-cavity arranged in an axially frontal position of the roller bearing, a dynamic portion in rotation about an axis when in use, and a static portion cooperating with the dynamic portion to protect the roller bearing from external contaminants, the dynamic portion having a centrifuging surface formed on a free end of the hub and the static portion in turn having a stationary screen that is fitted onto the support pin inside the pre-cavity and that has a centrifuging section facing the centrifuging surface to facilitate expulsion and drainage of contaminants out of the annular pre-cavity.

Sealing unit for wheel hub groups

Detection device for a wheel hub assembly provided with a rolling bearing, the detection device having a phonic wheel made of magnetized material and mounted on a rotating ring of the bearing, a shaped support element angularly constrained to the rotating ring of the bearing arranged directly between the phonic wheel and the rotating ring so as to angularly lock together the phonic ring and the rotating ring, and a sensor facing the phonic wheel; a protection device being integral with the rotating ring of the bearing so as to protect simultaneously both the phonic wheel and the sensor from external contaminants.

Detection device for wheel hub assembly

A sealing device for a wheel hub unit configured to form a static seal to protect the wheel hub unit from environmental contaminants. The sealing device including a shield that is coupled to a collar of the wheel hub unit. The sealing device having a cylindrical lateral mounting wall pressed into the collar, an annular seat with a blind end formed in the cylindrical lateral wall, and a sealing gasket positioned, inside the seat and compressed radially between the groove and the collar, and formed by a sealing compound to allow the formation of a bead against the cylindrical lateral wall in a transport and/or assembly configuration of the sealing device. The bead being movable into the seat by a scraping action exerted by the collar during the assembly of the shield.

A sealing device for bearing units is disclosed herein. The sealing device may comprise a static component and a dynamic component. The static component is provided with a shaped metal support, with a plurality of non-contacting sealing lips, and with two contacting lips. The dynamic component defines a labyrinth seal with a second sealing lip of said non-contacting sealing lips, a third lip, preferably non-contacting, being positioned along the labyrinth seal and having a full angular extension, so as to form a full seal against any ingress of contaminants into the bearing unit.

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San Gillio, Italy

Daniele Duch