A dynamically aligning, maintenance-free, radial insert ball bearing is provided, including an inner ring and an outer ring. An outer surface of the outer ring has a partial spherical contour. An enclosure ring is located about the outer ring and has an inner surface with a complementary shaped contour to the partial spherical contour, allowing tilting of the outer ring relative to the enclosure ring via sliding contact. Rolling elements are located between the inner and outer rings. First and second inner seals are located on opposing sides of the rolling elements and extend between the inner and outer rings. Outer seals are located on opposing sides of the rolling elements axially outward of the respective first and second inner seals and extend between the enclosure ring and the inner ring to define a lubricant reservoir for the sliding contact of the partial spherical contour in the complementary shaped contour.

A labyrinth seal bearing includes: an inner ring; an outer ring; a labyrinth seal structure, located in a radial gap between the inner ring and the outer ring; wherein the labyrinth seal structure includes a plurality of seal rings, a labyrinth gap channel is formed among the plurality of seal rings, and the labyrinth gap channel includes two ports respectively connected with an external of the bearing and an internal of the bearing; and a seal loop made from lubricating grease, wherein the seal loop is located in the labyrinth gap channel, and blocks the labyrinth gap channel, so as to isolate the two ports from each other. The present disclosure solves the problem of poor sealing effect in a conventional labyrinth seal bearing.

A dynamically aligning, maintenance-free, radial insert ball bearing is provided, including an inner ring and an outer ring. An outer surface of the outer ring has a partial spherical contour. An enclosure ring is located about the outer ring and has an inner surface with a complementary shaped contour to the partial spherical contour, allowing tilting of the outer ring relative to the enclosure ring via sliding contact. Rolling elements are located between the inner and outer rings. First and second inner seals are located on opposing sides of the rolling elements and extend between the inner and outer rings. Outer seals are located on opposing sides of the rolling elements axially outward of the respective first and second inner seals and extend between the enclosure ring and the inner ring to define a lubricant reservoir for the sliding contact of the partial spherical contour in the complementary shaped contour.

A shaft includes a head part having an outer diameter greater than an inner diameter of an inner ring and being in contact with a side surface on one axial end side of the inner ring, and a column part extending from the head part toward the other axial end side and having an axial width greater than a bearing. An external periphery of the other axial end portion of the column part is formed with a male screw to be fastened with a support arm. A side surface on one axial end side of the shaft is formed with a concave section to which a tool capable of rotating the shaft is to be fitted. A bottom part of a housing is formed with a through-hole into which the tool can be inserted, at a position facing the concave section.

A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements that are disposed radially between the rings, at least one seal forming a first sealing component that is fixed to one of the rings and engages with the other ring, and at least one flange forming a second sealing component that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing. At least one of the first and second sealing components comprises at least two annular ribs, the other sealing component being mounted axially in contact therewith. At least one closed annular space is delimited by the ribs and by the other sealing component. At least one lubricant is disposed inside the space.

A bearing seal is suitable for sealing a space between a first rotating body and a second rotating body of a bearing. The first radial end of the bearing seal is arranged on the first rotating body and forms a contact seal with the first rotating body, the second radial end of the bearing seal is arranged close to the second rotating body and forms a non-contact seal with respect to the second rotating body. A plurality of lubricant storage cavities arranged on the inner surface of the bearing seal facing the rolling elements of the bearing. A bearing providing the bearing seal as described above.

A bearing unit (10) has a radially outer ring (31), a radially inner ring (33), an eccentric locking collar (40), a row of rolling bodies (32), and a sealing device (50). The sealing device (50) is arranged on the same side as the locking collar (40) and is interposed between the radially inner ring (33), the radially outer ring (31) and the locking collar (40). The sealing device (50) includes a metal shield (55) stably connected to the radially outer ring (31), and an elastomeric component (60) co-molded on the shield (55) in a radially inward direction. The elastomeric component (60) has a plurality of lips, of which at least one lip (64, 65) is in contact with the locking collar (40).

A sealing arrangement for a wheel bearing includes a carrier element connectable to a first bearing part of the wheel bearing, a resilient sealing element, and a counterflow plate connectable to a second bearing part of the wheel bearing. The resilient sealing element includes a resilient main body arranged on the carrier element, first and second axial sealing lips extending away from the resilient main body, and a radial sealing lip extending away from the resilient main body. The counterflow plate is arranged with one side facing the carrier element such that the first and second axial sealing lips, and the radial sealing lip, are in sliding contact with the counterflow plate. The first axial sealing lip, second axial sealing lip, and radial sealing lip rest against the counterflow plate with respective contact pressures.

A suspension bearing unit includes a lower support cap, an upper bearing cap, at least one bearing disposed between the lower support cap and the upper bearing cap, and at least one gasket overmolded to the upper bearing cap and having a sealing portion extending toward the lower support cap and forming a seal with a portion of the lower support cap. The upper bearing cap includes an external skirt radially surrounding the at least one gasket. Also a method of forming the unit.