Abstract: A slide ring seal has a slide ring, supported such that the slide ring is axially movable, and a counter ring. The slide ring and the counter ring have respective sealing surfaces contacting one another. The slide ring sealing surface faces the counter ring sealing surface. The slide ring is pressed against the counter ring by a bellows-like spring element. The slide ring seal may be designed so the slide ring seal has an especially flexible slide ring and/or counter ring after economical and trouble-free production, the slide ring seal has at least one sealing surface with elevations or unevenness of a magnitude from 0.1 ?m to W mm, W conforms to the formula W=0.03 Dm/s, wherein the average diameter Dm is the average of the circular-ring-shaped sealing surface's outside (Da) and inside (Di) diameter, and s is the slide ring or counter ring thickness.

Abstract: A slide ring seal has a slide ring, supported such that the slide ring is axially movable, and a counter ring. The slide ring and the counter ring have respective sealing surfaces contacting one another. The slide ring sealing surface faces the counter ring sealing surface. The slide ring is pressed against the counter ring by a bellows-like spring element. The slide ring seal may be designed so the slide ring seal has an especially flexible slide ring and/or counter ring after economical and trouble-free production, the slide ring seal has at least one sealing surface with elevations or unevenness of a magnitude from 0.1 ?m to W mm, W conforms to the formula W=0.03 Dm/s, wherein the average diameter Dm is the average of the circular-ring-shaped sealing surface's outside (Da) and inside (Di) diameter, and s is the slide ring or counter ring thickness.

Abstract: A mechanical face seal including a primary ring which is axially movably mounted, and a mating ring (3, 3?, 3?), wherein the primary ring and a mating ring each comprise adjoining sealing surfaces. The primary ring is pressed by a spring against the mating ring. The spring has a bellows-like shape. The spring is made out of an elastomer. The mechanical face seal achieves a small installation space for a mechanical face seal.

Abstract: A slide bearing for supporting a shaft and comprising at least one bearing shell for receiving the shaft. The bearing shell and the surface of the shaft define a bearing gap. Also described is a mechanism for supplying a lubricant to the bearing gap so that the lubricant can be removed therefrom. To compensate for negative effects of a temperature-dependent change of the bearing gap, there is provided at least one throttling element for throttling the flow of lubricant through the bearing gap.

Abstract: Bearing arrangement (1) for supporting a shaft (2) in a housing (3), wherein there is formed in the housing (3) at least one cupped bearing surface (4) on which the shaft (2) can be positioned, wherein a gap (5) is formed between the bearing surface (4) and the shaft (2), and wherein at least one throttling element (6) is provided in the gap (5).

Abstract: A slide bearing for supporting a shaft and comprising at least one bearing shell for receiving the shaft. The bearing shell and the surface of the shaft define a bearing gap. Also described is a mechanism for supplying a lubricant to the bearing gap so that the lubricant can be removed therefrom. To compensate for negative effects of a temperature-dependent change of the bearing gap, there is provided at least one throttling element for throttling the flow of lubricant through the bearing gap.

Abstract: A sealing system for sealing a machine element, preferably a shaft, with at least one sealing ring and a depot for absorbing a leak. The system is monitored with a measuring device that includes a condenser, and the depot serves as a dielectric.

Abstract: A sealing arrangement for sealing a machine element, preferably a shaft, with a sealing ring and leak-detection means that comprises a sensor for detecting the leak, and a depot for picking up the leak. The depot is monitored by the sensor and the depot consists of an absorbent and/or swellable material, and is arranged so as to permit delayed leak detection by the sensor.

Abstract: An axial shaft seal disposed between a housing wall and a rotating shaft includes an outer ring insertable into the housing wall in a stationary and sealing manner and an inner ring connectable to the shaft in a non-twisting and sealing manner. The outer ring includes a sleeve having a polymer material extending radially inward and having a spring bellows form. A radially inward end portion of the sleeve has a first sealing surface. The inner ring includes a ring flange extending radially outward so as to provide a second sealing surface for axially mating the first sealing face.

Abstract: A radial shaft sealing ring with a backing ring and a sealing element made of an elastomeric material vulcanized onto it. The sealing element has a lip seal which, for the uninstalled sealing ring, protrudes from the backing ring in radial direction. When the ring is installed in the opening of a housing in a prestressed condition, the lip seal surrounds the shaft with its curved sealing surface. The lip seal consists of an elastomer and its sealing surface consists of a sealing bulge disposed at the end of the lip seal. The lip seal surrounds the shaft and a surface segment attached thereto retains or returns leaking liquid. The terminal surface of the lip seal, when the sealing element is installed, is oriented toward the internal space of a housing that is to be sealed.

Abstract: A radial shaft seal with a sealing element made of a non-woven fabric impregnated with an active material, particularly PTFE. The shaft seal is disposed between a stationary machine part and a rotating shaft. In the axial direction, the sealing element consists of at least one layer of non-woven fabric impregnated with a PTFE dispersion and laminated under pressure and heat.

Abstract: A seal for sealing rotating shafts, or rods that move back and forth, comprising a shaft-sealing or rod-sealing element that has a sealing surface or sealing edge. The sealing element is provided on at least one of its surfaces with a facing that consists of a nonvowen material impregnated with a polymer dispersion.

Abstract: A sealing system for sealing a machine element, preferably a shaft, with at least one sealing ring and a depot for absorbing a leak. The system is monitored with a measuring device that includes a condenser, and the depot serves as a dielectric.

Abstract: A sealing arrangement for sealing a machine element, preferably a shaft, with a sealing ring and leak-detection means that comprises a sensor for detecting the leak, and a depot for picking up the leak. The depot is monitored by the sensor and the depot consists of an absorbent and/or swellable material, and is arranged so as to permit delayed leak detection by the sensor.

Abstract: A cassette seal, particularly for machines exposed to a high degree of external dust or dirt particles, which between an outer ring and an inner ring, is provided with at least one dust barrier that can be exposed to dust. The at least one dust barrier consists of a nonwoven material impregnated with a polymer dispersion.

Abstract: A sealing ring for sealing a machine element includes a stiffening ring of a hard material, a supporting ring having a radial flange positioned adjacent a radial surface of the machine element and a sealing sleeve of an elastomer material connected to the stiffening ring. The sealing sleeve includes a sealing lip for sealing against the radial surface of the machine element so as to create a sealed-off space. The sealing sleeve also incldes an outer axial leg and a radial leg connecting the sealing lip to the outer axial leg. The outer axial leg includes a first end proximate to the sealed-off space and the sealing sleeve is connected to the stiffening ring at the first end. In addition, a sealing arrangement including two such sealing rings.

Abstract: An axial shaft seal disposed between a housing wall and a rotating shaft includes an outer ring insertable into the housing wall in a stationary and sealing manner and an inner ring connectable to the shaft in a non-twisting and sealing manner. The outer ring includes a sleeve having a polymer material extending radially inward and having a spring bellows form. A radially inward end portion of the sleeve has a first sealing surface. The inner ring includes a ring flange extending radially outward so as to provide a second sealing surface for axially mating the first sealing face.

Abstract: A sealing ring having a sealing disk made of polymer material, which has a retaining segment and a sealing segment. The retaining segment is connected to a support ring and the sealing segment is curved in the direction of a space that is to be sealed off and sealingly surrounds a shaft against which it forms a seal on its peripheral side under radial prestressing. The sealing segment on the side facing the shaft has a first surface profiling, the first surface profiling on the side facing the space to be sealed off being formed by at least one recirculating element, and at least one dust lip being arranged on the side of the recirculating element facing away from the space to be sealed off. Between the recirculating element and the dust lip, an annular, self-contained sealing bead is arranged which sealingly surrounds the shaft on the peripheral side.

Abstract: Device to detect leaks and fatigue in membranes wherein the membrane consists of at least two membrane layers, and wherein at least one of the membrane layers includes a conductor on its inner surface that causes an alteration to a measured value in case of an alteration to either the membrane or the conductor.

Abstract: A method and tool for producing bipolar plates having liquid channels and gas channels, and having sealing elements made of polymer material for fuel cells. The bipolar plates are stamped, i.e., liquid and gas channels are impressed into the bipolar plates, and sealing elements are applied to the bipolar plates in one tool in two steps directly following each other.