Abstract: A seal for a rotating system with two sealing units which are arranged one behind the other along a main axis H, the sealing units each having a through-hole for a shaft and being in interlocking engagement with each other in the circumferential direction and at least one axial compression spring element being arranged between the sealing units.

Abstract: A spring seal for a joint assembly pivotally joining a lever arm to a machine frame includes an annular body having a W-shaped cross section. The W-shaped cross section includes a first cantilevered arm, a parallel and spaced apart second cantilevered arm, and a spring leg joining the first and second cantilevered arms. The spring seal is disposed between a bearing surface on the lever arm and a lug on the frame. The W-shaped cross section of the spring seal can collapse and relax to accommodate movement between the lever arm and the frame lug. A second spring seal can be disposed between a second bearing surface on the lever arm and a second frame lug opposite the first lug.

Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an uncoupled second seal section which allows the first and second seal sections to move relative to one another during relative movement between the two components. One or more spring tabs extend from the first seal section and/or the second seal section, are disposed between the first and second seal sections, and bias the first and second seal sections away from one another.

Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an uncoupled second seal section which allows the first and second seal sections to move relative to one another during relative movement between the two components. A wave spring and/or a rope seal is disposed between the first and second seal sections biases the first and second seal sections away from one another.

Abstract: Aspects of the disclosure are directed to a system comprising: a first seal that includes a notch configured to avoid an adjacent seal plate radius edge and a first protrusion, and a second seal that is notch-free with respect to an inner diameter sealing face and includes a second protrusion, wherein the first protrusion and the second protrusion are configured to at least partially overlap with one another in at least one of an axial direction or a radial direction with respect to an engine centerline.

Abstract: A rotary table apparatus includes a rotary table body, a table rotor supported on the rotary table body and configured to be rotatable, a driving unit for driving the table rotor, a seal mechanism including a sealer disposed between the rotary table body and the table rotor, and a first supply unit configured to supply clean fluid for use in machining to the seal mechanism.

Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

Abstract: A cartridge seal device includes a sleeve, a gland unit, a first seal unit, a pumping ring, and a second seal unit. The gland unit includes a first gland and a second gland. The first seal unit includes a first rotary ring disposed around the sleeve and rotatable along with the sleeve, a first stationary ring abutting against the first rotary ring, a compression ring abutting against the first stationary ring, and at least one first spring disposed within a retaining slot of the first gland and abutting against the compression ring. The first stationary ring has one end in abutment with the first rotary ring, and an opposite end formed with at least one notch. The compression ring has aligned guide pieces extending respectively into the notch of the first stationary ring and an engaging recess of the first gland.

Abstract: The invention provides a seal for a rotatable shaft. The seal includes an inner case mountable to the shaft and having a body and first and second flanges extending radially outward from the body. The seal includes first and second sealing discs operable to seal against the first and second flanges of the inner case. The sealing discs are immovably associated with a housing spaced from the shaft. A spring encircles the shaft and inner case to urge the sealing discs against the flanges. The spring rate of the spring is controlled to enhance sealing, reduce turning torque, and extend life of the seal.

Abstract: A sealing device has a seal ring and a cylindrical bellows portion connected to the seal ring. The cylindrical bellows portion has a corrugated outer surface. A turbocharger utilizing the sealing device has a turbine wheel connected to a shaft and a compressor wheel connected to the shaft. The sealing device is sealingly engaged with the shaft. The sealing device provides a seal between a bearing housing of the turbocharger and either a turbine housing or a compressor housing.

Abstract: A space between a housing and a rotator is hermetically sealed with a double-mechanical seal. A pair of rotary seal rings are sandwiched between a pair of stationary seal rings while sandwiching therebetween a stopper ring for inhibition of relative rotation between the rotary seal rings and the rotator. A spring is interposed in a space between the stopper and each of the rotary seal rings for pressing each rotary seal ring against the corresponding stationary seal ring.