Abstract: 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.

Abstract: Disclosed is a novel 3D-printer system for printing elastically deformable rubber parts such as rubber seals where the uncured rubber source material is partially cured before printing each rubber layer of the rubber part. Furthermore, disclosed is a novel 3D printing method for 3D-printing an elastically deformable rubber body using the 3D-printer system.

Abstract: A cassette seal is configured to seal a shaft within a housing. A shaft casing is annularly-shaped about a longitudinal axis and is configured to fixedly attach to the shaft, where the shaft casing is electrically conductive and configured to be in electrical conductivity with the shaft when attached to the shaft. A housing casing is annularly-shaped about the longitudinal axis and is configured to fixedly attach to the housing, where the housing casing is electrically conductive and configured to be in electrical conductivity with the housing when attached to the housing. A seal is disposed between the shaft and housing casing. At least one cantilevered flexural finger is attached fixedly attached to either the shaft casing or the housing casing and then in rotating abutment with the other. The at least one cantilevered flexural finger is electrically conductive and electrically connects the shaft casing to the housing casing.

Abstract: A tube seal configured to fluidically seal and connect a first and second tube includes an elastomeric seal conduit having a conduit skeleton. The elastomeric seal conduit extends along a longitudinal axis having a first end opposite a second end and having a hollow portion configured to transport a fluid between the first and second tubes. The conduit skeleton may be temporarily or permanently connected to the elastomeric seal conduit and extends along the longitudinal axis generally between the first and second ends. The conduit skeleton has a first band disposed a distance from a second band where the bands are aligned about the longitudinal axis and where at least one rib extends between and connects the bands. The conduit skeleton may be made from a different material in comparison to the elastomeric seal conduit or may have a higher modulus of elasticity in comparison to the elastomeric seal conduit.

Abstract: A composite seal for a swivel seal assembly includes an elastomeric seal ring bonded to at least one anti-extrusion ring. The elastomeric seal ring includes an outside annular valley formed along an outside diameter, the outside annular valley separating a first outside sealing annular interface apart from a second outside sealing annular interface. The first outside sealing annular interface is disposed adjacent to a first axial side and the second outside sealing annular interface is disposed adjacent to the at least one anti-extrusion ring. The elastomeric seal ring includes an inside annular valley formed along an inside diameter, the inside annular valley separating a first inside sealing annular interface apart from a second inside sealing annular interface. The first inside sealing annular interface is disposed adjacent to the first axial side and the second inside sealing annular interface is disposed adjacent to the at least one anti-extrusion ring.

Abstract: An axial shaft seal ring has a holding portion and a sealing portion, which are connected to one another via an elastically deformable sealing membrane. The sealing membrane has a plurality of spatial structure areas R in the circumferential direction of the shaft seal ring, which serve as a circumferential reserve of the sealing membrane. As a result of a centrifugal force FR accompanying a rotational movement of the shaft seal ring around the central axis thereof and acting on the sealing membrane, an expansion of the sealing membrane in a radial direction is effected at least in the spatial structure areas, in such a manner that the sealing portion is acted upon by the sealing membrane with an axially directed pull force FZ, which is directed opposite to the pressing force FA.

Abstract: A method of assembling a seal includes presetting a spring in a core material and performing a lost core molding process with the spring being preset in the core, which provides for more exact manufacture, leading to lighter weight, higher performance and ability to make complex designs.

Abstract: A sealing ring, in particular a radial shaft sealing ring or a rod sealing ring, can be used for sealing a sealing gap which is arranged between two machine elements. The sealing ring comprises an elastically deformable polymer material and a supporting ring which is embedded in a positively locking manner in the polymer material at least in sections. The supporting ring is configured as a 3D-printed part with a multiple-layer construction of its material at least in sections. The material of the supporting ring has a greater modulus than the polymer material. The supporting ring can be widened elastically in a radial direction with respect to the center axis of the sealing ring, and has dimensionally stable first ring segments which are connected to one another in an articulated manner in the circumferential direction of the sealing ring.

Abstract: A seal arrangement includes a first and a second machine part able to move relative to each other about a movement axis and forming a sealing gap. A seal element has a base section retained on a seal retaining groove structure of one of the two machine parts, and has a sealing head that bears with a sealing section in a dynamically sealing manner against a sealing face of the respective other machine part sealing a high-pressure side, that can be charged with pressurized fluid, of the sealing gap with respect to a low-pressure side of the sealing gap. The sealing head and the base section are connected by an elastically deformable connection section of the seal element, which has a non-linear cross-sectional profile and multiple regions of weakened material arranged spaced apart from one another in sequence, preferably regularly, in the circumferential direction of the seal element.

Abstract: A seal detection device includes at least one seal with an outer surface where the outer surface is partially made up of a lateral surface and an axial surface. The at least one seal is provided with at least one seal mark and is placed on the lateral surface or the axial surface of the at least one seal. The at least one seal may be further provided with a unique code and may be associated with relevant seal data such as seal material, date of installation, last maintenance date, next scheduled maintenance/replacement, material safety data sheet(s), etc.

Abstract: A seal arrangement includes first and second machine parts rotationally movable and forming a sealing gap. A radial shaft seal ring seals a high pressure side against a low pressure side. A base section held on a sealing holding structure of the first machine part has a sealing head contacting the sealing surface of the second machine part. The sealing surface has a high and low pressure first sealing surface sections. The first sealing surface section extends away from the sealing holding structure forming an acute angle. The sealing head contacts the first sealing section when an operating pressure is applied to the high pressure side, said operating pressure being smaller than a specified limit operating pressure value. The second sealing surface section forms an axial stop for the sealing head when an operating pressure is applied to the high pressure side being at least the limit operating pressure value.

Abstract: An axial shaft seal ring has a holding portion and a sealing portion, which are connected to one another via an elastically deformable sealing membrane. The sealing membrane has a plurality of spatial structure areas R in the circumferential direction of the shaft seal ring, which serve as a circumferential reserve of the sealing membrane. As a result of a centrifugal force FR accompanying a rotational movement of the shaft seal ring around the central axis thereof and acting on the sealing membrane, an expansion of the sealing membrane in a radial direction is effected at least in the spatial structure areas, in such a manner that the sealing portion is acted upon by the sealing membrane with an axially directed pull force FZ, which is directed opposite to the pressing force FA.

Abstract: A seal arrangement includes a first and a second machine element have a sealing gap and are movable in translation relative to one another. A seal element has a sealing lip arranged in a holding groove in the first machine element and which serves to seal off a low-pressure and high-pressure region. A rubber-elastically deformable preloading element in the holding groove serves to preload the seal element. At least one elastically deformable damping member is arranged between a low-pressure side groove flank and the seal element. A free space is formed between the damping member and the sealing surface. The damping member is compressed in the axial direction by the seal element when the high-pressure region is subjected to pressure and can be deformed freely into the free space. The damping member is of a material having a lower elasticity modulus than the seal element.

Abstract: A seal arrangement has two machine parts movable toward one another along or about a movement axis. One of the two machine parts forms a seal holding structure and the other forms a sealing surface. A sealing device between the two machine parts is arranged on or in the seal holding structure, wherein the sealing device includes a sealing element and a pre-tensioning element which is separate from the sealing element and by means of which the sealing element is tensioned in the radial direction against the sealing surface of the respectively other machine part. The sealing element is formed by an elastically deformable sealing film. On the sealing film side, the pre-tensioning element forms an embossed structure which presses into the sealing film where the sealing film bears against the sealing surface with a contact pressure progression which corresponds to the embossed structure of the pre-tensioning element.

Abstract: A rotary seal arrangement has a rotatably mounted machine part and a machine part that forms a bearing for the rotatably mounted machine part. One of the machine parts forms a seal accommodating structure and the other one of the machine parts has a surface forming a sealing surface. At least one rotary seal is arranged in the seal accommodating structure. The rotary seal seals off a high-pressure area from a low-pressure area between the machine parts.

Abstract: A housing having an overpressure protection includes a pressure relief opening with a diaphragm sealing plug to be closed in a fluid-tight manner. The diaphragm sealing plug has a central portion and an angled free peripheral portion. The free peripheral portion in the non-pressurized operating state extends away from the central portion in the direction of the housing external side. The central portion, by way of an increasing housing internal pressure in the axial direction, is deformable in such a manner that the peripheral portion by way of a tension stress that is derived from the deformation of the central portion in a manner proportional to the pressure is releasable from the housing wall in the axial direction in a progressive manner from the inside to the outside such that the diaphragm sealing plug releases the pressure relief opening when a predefined maximum housing internal pressure is reached or exceeded.

Abstract: A sealing system is between two components, which are translatorily movable relative to each other along a motional axis for sealing off a high-pressure side from a low-pressure side. The sealing system includes pressure relief elements. The use of such a sealing system produces an intermediate-space pressure cascade.

Abstract: A sealing arrangement includes a first and a second machine part movable relative to each other along a motional axis. A sealing element is arranged in a press fit in a plurality of grooves of a seal-holding structure of the first machine part. A sealing lip of the sealing element extends away from the seal-holding structure in the axial direction. A pretensioning element is disposed in a retaining groove of the first machine part. The sealing lip is pretensioned against a sealing surface of the second machine part in order to seal off a high-pressure region. The retaining groove has a wedge guide surface for the pretensioning element, which wedge guide surface is arranged running obliquely at an angle ?, where ?<90°, to the motional axis. The pretensioning element is movable against and along the wedge guide surface to pretension the sealing lip against the sealing surface.

Abstract: Then invention relates to seals, methods for making seals and devices for making seals wherein the seals comprise a rigid substrate with two substantially parallel major surfaces (106, 108) wherein said surfaces are separated by a cut surface (110). The cut surface (110) comprises a first burnished region (119) of height p1 and a second burnished region (121) of height p2 wherein said first and second burnished regions are separated by a rough breakout (123) of height b.

Abstract: A seal for sealing a sealing surface 2 between a first machine part 1 having a seal accommodating structure, preferably a groove, and a second machine part 3, which defines the sealing surface 2 and can be moved relative to the first machine part 1. The seal seals a high-pressure area between the machine parts 1, 3 from a low-pressure area and has a retaining element 5 for positionally fixing the seal in the seal accommodating structure, and a sealing lip 6 which is formed on the retaining element 5 and is made from an elastomeric material having a sealing edge 7 formed at a free end of the sealing lip 6 for abutment on the sealing surface 2. The sealing lip 6 has a high-pressure surface area 10 bordering the high-pressure area, and a low-pressure surface area 11 bordering the low-pressure area.