A seal assembly having: a carbon ring annularly extending about a central axis and having an outer face, and a shrink band annularly extending about the central axis, the shrink band having an inner face, the inner face in contact with the outer face of the carbon ring at a contact interface defined therebetween, the inner face of the shrink band protruding axially beyond the contact interface.

A sealing device capable of suppressing depletion of lubricant is provided. A sliding surface of a side lip 220 at a position away from a distal end of the side lip 220 is provided with a plurality of annular grooves 222 adjacent each other, each of all parts that form annular protrusions 223 between adjacent annular grooves 222 protrudes most at a center in a width direction thereof, with an amount of protrusion gradually decreasing with increasing separation from the center, and both sides of the center in the width direction are symmetric in shape. A tip portion of the sliding surface of the side lip 220 on the distal side of a region, which is provided with the plurality of annular grooves 222, is configured to make a planar contact with an end face of the annular member.

A sealing device includes a first sealing member and a second sealing member. The first sealing member has a sleeve mounted on an inner member, and a flange. The second sealing member has a tubular portion mounted on the outer member, a disk portion that faces the flange, a radial lip in slidable contact with the sleeve, and a side lip extending from the disk portion and being in slidable contact with the flange. The first sealing member has an annular first protrusion protruding from the flange toward the disk portion. The first protrusion is disposed radially outside the side lip and overlaps the side lip in radial directions. The second sealing member has an annular second protrusion protruding from the disk portion toward the flange. The second protrusion is disposed radially outside the first protrusion and overlaps the first protrusion in radial directions.

The invention relates to a sealing assembly for the limitation of fluid flow along a rotatable shaft that is passed through a housing member that separates a high pressure side and a low pressure side, wherein the sealing assembly comprises: a rotor with a sealing surface which essentially extends radially in relation to the shaft, a flushing sealing system that extends between the rotor and the housing member, which sealing system is in contact with both the housing member and the sealing surface of the rotor to effect a sealing effect, wherein the flushing sealing system comprises an elastic sealing member that in use imposes a targeted compression force on the sealing surface.

In an outer ring rotating rolling bearing (10), an inclined surface is formed on an outer peripheral surface of an inner ring (12) and decreasing in diameter toward an axially outer side, a seal member (20) includes an annular core metal (21) and an annular elastic member (22) fixed to the core metal (21), and an elastic member (22) includes a neck portion (28) extending from an inner peripheral edge portion (24a) of the core metal (21) toward a radially inner side and a seal lip (30) formed at a tip end portion of a neck portion (28) and brought into contact with the inclined surface (41) of the inner ring (12) with a tightening margin. Here, T2≥T1, where a width of the core metal (21) is T1 and a thickness of the neck portion (28) is T2. As a result, even in an environment where the outer ring is rotated at high speed and the seal member is subjected to external pressure (pressure fluctuation), the influence of centrifugal force generated on the seal lip can be suppressed, and the sealing performance of the seal member can be ensured.

A sealing device, sealing assembly and an apparatus having a rotation shaft that uses the sealing assembly. The sealing assembly includes a rotating shaft seal and a sealing device. The rotating shaft seal has a ring shaped body with the rotating shaft passing through it and a sealing portion forming a dynamic sealing cooperation with the rotating shaft. The sealing device includes a ring shaped body with the rotating shaft passing through it, and includes first and second ring shaped portions spaced apart from each other in an axial direction. The first ring shaped portion defines a static sealing surface forming a static sealing cooperation with the rotating shaft, and the second ring shaped portion defines a dynamic sealing surface forming a dynamic sealing cooperation with a portion of the rotating shaft seal adjacent to the sealing portion of the rotating shaft seal.

A face seal assembly includes a pair of identical metal and elastomeric rings. The metal rings are biased towards one another by the elastomeric rings when the face seal assembly is installed. The metal rings each have lapped surfaces that abut one another to create a sealing arrangement. An outside side of each elastomer ring is divided by a second inner diameter surface definingly separating a metal ring engagement side from an environmentally exposed side. The environmentally exposed side of each elastomeric ring has an annularly-shaped concave valley formed in the elastomeric ring, which is facing the concave valley of its oppositely disposed respective elastomeric ring. The concave valley starts from a first annular lip and extends to a maximum offset distance at an annular bottom of the concave valley and ends at a second annular lip. The second annular lip is disposed further back from the first annular lip.

Provided is a slide bearing capable of retaining strength while achieving weight reduction and cost-cutting. The slide bearing has an upper case (2) to be attached to an upper support for attaching a suspension to a vehicle body, a lower case (3) rotatably combined with the upper case (2), an annular center plate (4) located between the upper case (2) and the lower case (3), and an annular sliding sheet (5) located between the upper case (2) and the center plate (4). The lower case (3) has a lower case body (31) in a substantial cylindrical shape, a flange part (32) projecting radially outward from an outer peripheral surface of the lower case body (31), and hollow sections (321) formed on an outer peripheral surface of the flange part (32). A plurality of the hollow sections (321) are formed at equal intervals in a circumferential direction on the outer peripheral surface of the flange part (32).

A sealing structure includes a sealing device including a first seal lip having a first seal-lip end, and a support ring that supports the first seal lip; and a plurality of members that define an attachment space into which the sealing device is attached, the members including an inner peripheral wall arranged on the inner periphery side of the sealing device, a first end wall arranged on one axial end of the sealing device, and a second end wall arranged on another axial end of the sealing device. The first seal-lip end has a certain amount of interference with the inner peripheral wall and the first end wall so that its radial reaction force radially presses the support ring outward and its axial reaction force presses the support ring toward the second end wall.

[Problem] To provide a method for manufacturing a sealing device having high pressure-resistance and high durability. Provided is a method for manufacturing a sealing device to be provided between a shaft and an inner surface of a shaft hole in which the shaft is provided, the method comprising: a step for forming an atmosphere-side rigid ring by forming a through-hole in a rigid body by a punching-out process; a step for causing a reinforcement ring for reinforcing an elastic ring to contact the elastic ring in a direction parallel to the axial direction of the shaft, wherein the elastic ring is made of an elastic body, is attached to a liquid-side rigid ring made of a rigid body and disposed inside the shaft hole, is disposed radially inward of the liquid-side rigid ring, and has formed thereon a seal lip that slidably makes sealing contact with the shaft; and a step for causing the atmosphere-side rigid ring to contact the reinforcement ring in a direction parallel to the axial direction of the shaft so that a surface contacted by an end surface of a punch during the punching-out process of the atmosphere-side rigid ring is positioned on an opposite side to the reinforcement ring.