A seal for sealing between a trunnion and bearing cup of a joint member includes a main annular body. A plurality of annular lips extend radially inwardly from the main body. The lips are configured for engaging an outer bearing surface of the trunnion. A first one and a second one of the lips slope in a first direction with respect to the outer bearing surface of the trunnion and a third one of the lips slope in a second direction with respect to the outer bearing surface of the trunnion.

A protective ring for a sealing arrangement of a bearing bushing of a journal cross assembly is disclosed. The protective ring has an annular sleeve segment, which is concentric to a longitudinal axis, an annular seat segment which extends radially inward at a rear axial end of the sleeve segment, and at least one protrusion, which protrudes radially inward at a front axial end region of the sleeve segment. The protective ring also has a plurality of webs, which are distributed over the circumference and which protrude axially from the seat segment and are arranged inside the sleeve segment.

A universal joint bearing having a cup that serves as an outer ring of the universal joint bearing. The universal joint bearing includes exactly one sealing ring that is provided for sealing a gap between the cup and a trunnion.

In a bearing device 1 which is assembled to a pinion 3 of a rack-and-pinion type drive mechanism 2, the bearing device 1 has a plurality of needle rollers 13. A plurality of pin rollers 9 are supported by an inner surface cylindrically formed by the plurality of needle rollers 13. Each of the plurality of needle rollers 13 is held at both ends 13a, 13b in an axial direction R by a retainer cage 14, so as to prevent the needle rollers 13 from being skewed against the axial direction R.

A sealing assembly for a cup bearing of a universal joint includes a seal sub-assembly configured to be positioned in a space between a cup of the cup bearing and a trunnion of the universal joint. The seal sub-assembly includes an elastic sealing member configured to contact an outer surface of the trunnion, and a seal insert attached to the elastic sealing member and configured to contact an inner surface of the cup. The seal insert includes an extension portion configured to contact and extend away from a rim surface of the cup. The sealing assembly further includes an external shield including an inner portion and an outer portion. The inner portion is configured to contact the outer surface of the trunnion, and the outer portion is attached to the extension portion of the seal insert.

Needle bearing units and gas control valve arrangements including the bearing units are disclosed. A needle bearing unit for mounting a valve shaft or actuator shaft may include an outer ring and a needle cage, which may be arranged in the outer ring. Needle-shaped rolling elements may be guided in the needle cage, and the outer ring may have the form of a sleeve and have a sleeve bottom at its first end. An inner ring may be arranged in the needle cage and have, at its end remote from the sleeve bottom, an inner ring flange pointing toward the outer ring. The outer ring may have, at its second end, a sleeve flange, which surrounds the inner ring flange in order to fix the inner ring in the outer ring.

A universal joint includes a bush, a bearing journal supported in the bush by a bearing and a seal assembly configured to form a seal between the bearing journal and the bush. The seal assembly includes an outer body formed from a first material having a first hardness, and a reinforcing body at least partially embedded in the outer body is formed from a second material having a hardness greater than the hardness of the first material. The reinforcing body contacts and forms a slip surface for a rolling element of the bearing. The reinforcing body and the outer body are configured such that the reinforcing body compresses a portion of the outer body against the journal when the seal assembly is mounted on the bearing journal.

A seal for a bearing assembly, including: a longitudinal axis; a first portion arranged to engage an outer ring for the bearing assembly; and a second portion extending radially inward and in a first axial direction from the first portion. The second portion includes: a first lip arranged to contact a rotatable shaft passing through the bearing assembly; and a second lip located past the first lip in a second axial direction, opposite the first axial direction, and arranged to be separated, in a radial direction, from the rotatable shaft by a first distance.

A seal for a cross member unit for universal joints has a carrier ring to be inserted into a bearing cup of the cross member unit. The carrier ring has an L-shaped cross section with a cylindrical portion coaxial to a longitudinal axis and a flange portion extending form the cylindrical portion inwardly. An elastomeric sealing lip element is connected to the carrier ring. The sealing lip element has first engagement elements form fittingly engaging into first engagement apertures. The first engagement apertures extend through the flange portion of the carrier ring. The sealing lip element further has second engagement elements form fittingly engaging into second engagement apertures. The second engagement apertures extend through the cylindrical portion of the carrier ring.

A seal for a bearing assembly, including: a longitudinal axis; a first portion arranged to engage an outer ring for the bearing assembly; and a second portion extending radially inward and in a first axial direction from the first portion. The second portion includes: a first lip arranged to contact a rotatable shaft passing through the bearing assembly; and a second lip located past the first lip in a second axial direction, opposite the first axial direction, and arranged to be separated, in a radial direction, from the rotatable shaft by a first distance.