A wheel bearing device (1) including: an outer member (2) on the inner periphery of which an outer-side rolling surface (2c/2d) is formed; an inner member (3) on the outer periphery of which an inner-side rolling surface (3c/3d) is formed; and a plurality of rolling bodies (41) interposed between the rolling surfaces (2c/2d/3c/3d) of the outer member (2) and the inner member (3). The wheel bearing device having a spline hole (3b) formed in a through hole (3h) of the inner member (3). The spline hole includes a guide groove (3G) formed on an inner circumferential surface thereof. A guide plate (8G) of a finishing broach (8) passes through the guide groove in the inner periphery of the spline hole (3b).

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.

An encoder for a wheel bearing includes a carrier plate ring and a magnetic encoding ring. The carrier plate ring has a radially running first leg, and an axially running second leg arranged on an outer ring or on an inner ring of the wheel bearing. The carrier plate ring has, on the radially running first leg, cut-outs distributed over its circumference. The first leg has a fold for forming a folded portion, and the folded portion at least partly covers the cut-outs. The carrier plate ring is at least partly surrounded by the magnetic encoding ring. The encoding ring has unipolar magnetization and at least partly comes into contact in the cut-outs.

A sealing assembly for bearings, in particular for use in agriculture, the sealing assembly having a first shield, which extends from an outer surface of the inner ring to an inner surface of the outer ring, and is mounted on the outer surface of the inner ring, and a seal with a plurality of contact lips supported by the first shield, and provided with a predetermined number (N) of contact lips arranged in series axially next to one another. The contact lips may lie, when in a respective pre-assembly configuration, in respective planes (P) inclined with respect to a central axis (A) of the bearing, and may have radial lengths decreasing axially towards the bearing.

A seal member is provided in which lip wear is suppressed and resistance to muddy water is increased, as well as a bearing device for a wheel, provided with the seal member. An encoder (63) and an elastic member (65) form a labyrinth section (8) between an outer peripheral surface (61a) of a turned-back section (613) and an inner peripheral surface (64a) of an inner fitting section (641). The labyrinth section (8) extends axially outward and radially outward, and an inner peripheral surface (63c) of the encoder (63) that covers an inner peripheral surface (61c) of the turned-back section (613) is sloped axially inward and radially outward.

Sealing device for a bearing unit having at least one contact lip operatively in sliding contact with a contact surface of the bearing unit and in turn provided with a wedge portion which forms with respect to the contact surface a first angle (α) facing a medium to be contained and a second angle (β) opposite the first angle, wherein during operating conditions, the second angle (β) is smaller than the first angle (α) and with a first surface having a concave shape, the concavity of which is defined by a first radius (R1); wherein the second angle (β) is between 48° and 55° and the length of the first radius (R1) is between 2.0 mm and 10.00 mm.

Sealing device including a first annular element coupled to a first fixed mechanical member, and a second annular element coupled to a second rotating mechanical member, for protecting an annular compartment delimited between the members; the first element being provided with at least one annular sealing lip configured to interact with the second element, which has a radial edge of a flange portion arranged at an edge of a sleeve portion of the first element, thus forming with the latter a radial gap configured as a labyrinth seal; wherein the radial gap of the flange portion of the second annular element carries a plurality of depressions arranged in a crown, spaced adjacently to one another at the radial gap and configured to generate, as a result of the rotation of the second element, a dynamic effect (F) for the purpose of repelling any contaminants impelled towards the radial gap.

Provided is a seal arrangement for sealing an internal space between two components mounted for rotation relative to each other, in particular for sealing a wheel bearing. The seal arrangement comprises a first carrier element, which can be connected to the first component, and a second carrier element, which can be connected to the second component. A sealing element is formed on at least one of the carrier elements and rests against the respective other carrier element at least one contact point. It is provided that at least one opening is made in the first carrier element, into which a ventilation element is inserted. It is provided that a receiving space is formed on the ventilation element, which is delimited in the radial direction by a collar on a base body of the ventilation element, wherein a gas-permeable membrane or a porous body is arranged in the receiving space.

A seal assembly is for a wheel bearing assembly including an inner axle and a rotatable outer hub disposed about the axle. The seal assembly includes an annular inner case having an axial portion disposeable about the axle and a radial portion extending radially outwardly from the axial portion. A seal is coupled with the hub and has sealing lip(s) sealingly engageable with the annular case. Further, an annular flinger has an inner radial end coupled with or integrally formed with the annular inner case and an outer radial end including an outer axial portion spaced radially inwardly from the inner circumferential surface of the hub so as to define an annular labyrinth gap. The flinger includes a central portion that is at least partially frustoconical and extends between the inner and outer axial ends so as to obstruct an annular space between the inner case and the seal.

A sealing device has two sealing members. A first sealing member has a cylindrical mounted part adapted to be mounted to an outer member and an annular part extending radially inward from the cylindrical mounted part toward the inner member. A second sealing member has a sleeve adapted to be mounted to an inner member, a flange extending radially outward from the sleeve, and a cylindrical protruding portion made from an elastic material extending along the axial direction from the flange. Multiple retaining protrusions are formed on the inner peripheral surface of the cylindrical mounted part of the first sealing member are arranged at intervals in a circumferential direction. On the outer peripheral surface of the cylindrical protruding portion of the second sealing member, circumferential groove extending continuously in a circumferential direction is formed, within which the retaining protrusions are placed.