Abstract: A bearing includes an outer ring with a first outer roller race, a second outer roller race, and a radially inward facing outer ball race. The bearing includes a first and second inner rings that axially abutting one another at an abutment interface. The first inner ring has a first inner roller race, the second inner ring has a second inner roller race that are disposed in an interior area coaxially with the outer ring. A plurality of first rollers rollingly engage the first outer roller race and the first inner roller race. A plurality of second rollers rollingly engage the second outer roller race and the second inner roller race. A plurality of balls rollingly engage the outer ball race and the inner ball race.

Abstract: A seal assembly for a wheel bearing, may include a core facing an internal side of a wheel bearing assembly; a slinger disposed to face an external side of the wheel bearing assembly; a sealing member fixed to the core, and having a plurality of sealing lips selectively pressed against the slinger; and a deformation unit including a first spring and a second spring mounted on the slinger, and allowing the slinger to deform according to a vehicle speed, wherein the first spring and the second spring are disposed to be parallel to each other.

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: The invention relates to a mechanical seal assembly comprising a mechanical seal (2) comprising a rotating mechanical seal (20) and a stationary mechanical seal (21) defining a sealing gap (22) therebetween, and a one-piece safety seal (3) provided as a redundant seal in the event of failure of the mechanical seal (2) and adapted to seal at a rotating component, the safety seal (3) comprising a base body (30) and a sealing area (31) projecting from the base body (30) in the axial direction (X-X) and being flexible, a thickness of the sealing area (31) in the radial direction being smaller than a thickness of the base body (30) in the radial direction, and the safety seal (3) being arranged in a stationary manner and comprising a sealing surface (32) on an inner circumference.

Abstract: The invention relates to a seal device (1) for sealing two bearing elements which rotate relative to each other about an axis (D), in particular for sealing a rolling bearing. The seal device (1) includes a sealing section (2) for sealing purposes and a fastening section (3) for holding the seal device (1) against a bearing element (21). The sealing section (2) is arranged at one end of the fastening section (3) and includes a free end (E) opposite thereof. All the sections (2, 3) have a common carrier element (4) and at least one sealing element (5), and all the sections (2, 3) extend in the radial direction (R) and/or in the axial direction (A).

Abstract: A seal case for a bearing seal includes (a) an inner case encircling a rotation axis of the bearing seal, (b) an outer case encircling the rotation axis and including a ring-shaped frame and a rubber gasket over-molded on the frame, and (c) a plastic wafer clamped between the inner case and the outer case, and secured at least by the rubber gasket. A method for manufacturing a bearing seal includes over-molding a rubber gasket onto a ring-shaped frame to form an outer case, placing a plastic wafer between the rubber gasket and an inner case, and securing the inner case to the outer case to form a seal case.

Abstract: A sealing device may comprise: a flange that extends perpendicularly relative to a central axis of first portion; an inner cylindrical portion having an engaging surface, and a protruding portion extending between the flange and the inner cylindrical portion; a rigid body component; and an elastic component having a main oil lip and an excluder lip, wherein the main oil lip is proximate to or in contact with the flange at a first location, and wherein a the excluder lip contacts the inner cylindrical portion; wherein a gap is defined by surfaces of the first portion and the elastic component between the first location and the second location, and wherein, when the sealing device is installed in a bore so that the engaging surface is fixedly connected to the shaft and a machine is operated so that the shaft rotates, the volume of the gap changes by less than 10%.

Abstract: A rotating group for a supercharger includes a driving shaft and rotor assembly including a driving shaft connected to a driving rotor. A driven shaft and rotor assembly include a driven shaft connected to a driven rotor. The driving rotor is in intermeshing engagement with the driven rotor to rotate in a pair of transversely overlapping cylindrical chambers defined in a rotor housing of the supercharger. A driving shaft bearing is disposed in a bottom plate to radially and axially support the driving shaft for rotating the driving rotor in the rotor housing at a first predetermined axial location of the driving rotor from the bottom plate. A driven shaft bearing is disposed in the bottom plate to radially and axially support the driven shaft for rotating the driven rotor in the rotor housing at a second predetermined axial location of the driven rotor from the bottom plate.

Abstract: A bearing device for vehicle wheel includes a sealing ring (71) that includes: a core bar (72) and sealing rubber (73). The sealing rubber (73) includes: a first sealing lip (73b) that is formed to the radial-direction outside of the fitting part (72a) and has a tip end part that is in sliding contact with a sealing plane part (3h); and a second sealing lip (73c) that is formed to the radial-direction inside of the fitting part (72a) and has a tip end part that is in sliding contact with the sealing plane part (3h). A flat surface (73e) that can be contacted by a press-fitting tool (P) and by the tip end part of the fitting part (72a) of another bearing device for vehicle wheel is formed between the first sealing lip (73b) and the second sealing lip (73c).

Abstract: A device for the processing and separation of biological fluids into components comprises a hollow centrifugal processing chamber (10) fitted with an inlet/outlet head (20) and preferably with an axially movable piston (18). The inlet/outlet head has two separate inlets/outlets, for instance an axial inlet (29) and a lateral outlet (40). The processing chamber (1) is fitted with an internal flow guide (30) enabling operation of the device in a continuous processing mode wherein biological fluid to be processed is continuously intaken by say the axial inlet (29) and at the same time processed components are continuously removed via say the lateral outlet (40). The continuous processing flow can be driven by an external peristaltic pump (59) and/or by axial displacement of a piston (18) in the chamber (10).

Abstract: A sealed bearing module for a tidal turbine, the tidal turbine including a hub and at least one rotor blade, the sealed bearing module including an inner ring, and an outer ring, and a seal system configured to seal the bearing module. The outer ring includes axially extending bores configured to receive fasteners for attaching the outer ring directly to the hub, and the inner ring includes axially extending bores for attaching the inner ring directly or indirectly to the rotor blade.

Abstract: A rack-parallel steering system that prevents entry of abrasion powder into a rolling bearing is provided. A steering system includes a steered shaft, a rolling element screw portion, a rolling element nut, and a ball screw device. The steering system includes: a motor including an output shaft offset from the steered shaft; a drive force transfer mechanism including a toothed drive pulley, a toothed driven pulley, and a toothed belt; and a rolling bearing supporting a ball screw nut to be rotatable relative to a housing. A first seal member that contacts an outer ring and an inner ring is provided on a side surface of the rolling bearing on the driven pulley side. A second seal member that does not contact the inner ring is provided on a side surface of the ball bearing on the side opposite to the side surface on the driven pulley side.

Abstract: A bearing sealing device includes two seals (inner and outer seals) sealing the space between the inner and outer races of a bearing to ensure higher seal performance, and also to reduce the area of the inner periphery of the outer race that needs to be ground. The bearing sealing device includes a ring constituted by a metal annulus, and a rubber part. The metal annulus is formed by cold pressing, and has a seal contact surface kept in contact with seal lips of the outer seal. The rubber part includes a press-fitted portion fixed to the inner periphery of the outer race. The inner race has, on its outer periphery, a cylindrical fitting surface to which the outer seal is press-fitted.

Abstract: The present application discloses a protection apparatus. The protection apparatus is connected to an end effector which includes a casting, a fixed part fixed to the casting, a rotational part rotatable relative to the fixed part, and a sealing part provided in a circumference of the rotational part. The protection apparatus comprises a cover, an annular elastically deformable sealing member and a fixing member; the sealing member is partly accommodated between the cover and the rotational part; the cover is attached to the fixed part, the cover being adapted to cover the exterior of the fixed part by the fixing member, so as to prevent the fixed part from being exposed to an exterior; and the cover and the sealing member are configured to jointly cover the sealing part to prevent the sealing part from being exposed to an exterior. The present invention also provides an end effector and a robot.

Abstract: A sealed bearing includes an inner race; and seal members each including a seal lip made of rubber. Each seal lip includes a plurality of protrusions circumferentially spaced apart from each other, and kept in sliding contact with the inner race with fluid lubrication condition generated between the protrusions and the inner race. Each protrusion has a circular arc-shaped cross section along the circumferential direction, and the circular arc-shaped cross section has a radius of 0.4 mm or more and less than 9.0 mm.

Abstract: A seal body includes a flange that supports a lip configured to make sliding contact with a fixed surface. The flange includes a groove for receiving a garter spring on one face, and inwardly and outwardly facing conical surfaces on the opposite surface, the conical surfaces defining a lip where they meet. The ratio of the thickness of the portion of the lip located to one side of a plane that includes an edge of the groove to the thickness of the portion of the lip on the other side of the plane is about 44%.

Abstract: A combination bearing and seal assembly includes a tubular outer body connectable with an outer member and having first and second axial ends, opposing inner and outer surfaces and a bearing outer raceway on the outer body inner surface. A tubular inner body is disposed within an outer body bore and is disposeable about and coupleable with the rotatable member. The inner body has inner and outer surfaces, opposing outer and inner axial ends, the inner axial end providing a generally radial seal contact surface, and a bearing inner raceway on the inner body outer surface. Rolling elements disposed between the outer and inner raceways rotatably couple the outer and inner bodies and form a bearing. An annular seal is within the outer body bore, is coupled with the tubular outer body and has a generally radial sealing surface sealingly engageable with the inner body contact surface.

Abstract: Coupling system of a sealing assembly that has an annular rotating element, the seal assembly provides an annular screen providing a sleeve portion to be integrally coupled with the annular element rotating and a flange portion that protrudes radially from the sleeve portion. The sleeve portion by coupling with a seat mounting of the annular rotating element defined by an outer cylindrical surface of the mounting and including a first circumferential discontinuity cooperating with the sleeve portion to locally increase a reaction force of the cylindrical surface at the first circumferential discontinuity due to elastic radial pressure exerted by the sleeve portion on the mounting seat.

Abstract: Conveyor rollers that include a bearing that may float axially relative to the shaft are disclosed. In some embodiments, the conveyor roller includes an elastic member (e.g., o-ring) that resists rotation of the inner race of the bearing from rotating relative to the shaft. The floating bearing may accommodate expansion and/or contraction of the roller tube relative to the shaft.

Abstract: A seal assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a seal housing that extends about an axis. The seal housing defines an annular groove. A contacting-type seal is at least partially received in the annular groove. The seal includes a seal member and a seal carrier that extends about and mechanically attaches to an outer diameter of the seal member. The seal member defines an annular seal face that is moveable along the axis to abut against a seal seat. The seal member includes a first material, and the seal carrier includes a second, different material.

Abstract: A wheel bearing apparatus includes an outer ring, an inner shaft member, rolling elements, a cage, and a sealing device. The sealing device includes an annular slinger and a sealing member. The slinger has a first inclined surface provided on a radially outer side and on a side facing the sealing member such that a diameter of the first inclined surface increases toward a first side in an axial direction. The sealing member has a second inclined surface provided on the radially outer side and on a side facing the slinger such that a diameter of the second inclined surface increases toward a second side in the axial direction. The second inclined surface intersects with a virtual extension surface extending radially outwardly along the first inclined surface, and the second inclined surface is continuous with an inner peripheral surface of the radially outer portion.

Abstract: A pump housing of the carbon dioxide-containing gas recovery apparatus is formed with a first chamber and a second chamber partitioned by a partition wall. The first and second chambers and communicate with each other through a third chamber. The first chamber communicates with a water supply opening and a carbon dioxide-containing gas inlet. When blown against water filling the first chamber, a carbon dioxide-containing gas is dissolved in the water, and the carbon dioxide-containing gas remaining undissolved exists as bubbles in the water. When a pair of six-blade rotors oppositely disposed on two axes and in the third chamber compress the bubbles to be refined into different bubbles, the carbon dioxide-containing gas can further be dissolved in the water by a compression action. An aqueous solution of carbon dioxide-containing gas is discharged from a water outlet communicating with the second chamber.

Abstract: Disclosed is a pump which comprises a mechanical seal lubricated by supplying lubricant from an external oiler. When there is no fluid flowing through the pump and the pump is in operation, the temperature of the mechanical seal rises. The lubricant from the oiler is supplied to the center of the mechanical seal through entry lines, and serves to maintain temperature within the pump and seal, while also avoiding failure of the seal. The lubricant keeps the mechanical seal cool and lubricated at all times.

Abstract: A railcar lever system for decoupling a first railcar from a second railcar, the system includes a first elongated lever having a working element to engage with a lock lifter at a first end and a stop at an opposing second end; a second elongated lever having a handle at a first end and a stop at an opposing second end; a middle elongated lever configured to slidingly engage with both the first elongated lever and the second elongated lever; a first bracket rigidly secured to a first surface of the middle elongated lever, the first bracket being configured to slidingly receive the first elongated lever; a second bracket rigidly secured to a second surface of the middle elongated, the second bracket being configured to slidingly receive the second elongated lever; a first guide pad removeably attached to the first bracket, the first guide being disposed between an inner surface of the first bracket and an outer surface of the first elongated lever; and a second guide pad removeably attached to the second brack

Abstract: A rotary seal arrangement for use with a central tire inflation system is provided. The rotary seal arrangement comprises a stationary portion, a rotating portion, a first sealing ring, a second sealing ring, and a first bushing portion. The stationary portion defines a first air passage therethrough and the rotating portion defines a second air passage therethrough. The first sealing ring and the second sealing ring are each disposed on one of the rotating portion and the stationary portion. The first bushing is disposed on one of the rotating portion and the stationary portion. The first bushing is in dynamic sealing engagement with the first sealing ring. The stationary portion, the rotating portion, the first sealing ring, and the second sealing ring form a sealed cavity that facilitates fluid communication between the first air passage and the second air passage.

Abstract: A miter saw includes a base portion having a mount surface, a cutting unit supporting a saw blade, a support portion, a relative displacement smoothening member, and a sealing structure. The support portion is supported to the base portion for supporting the cutting unit. The support portion includes a rod extending in a sliding direction in parallel to the mount surface and perpendicular to a rotation axis of the saw blade, and a slide-support portion through which the rod slidably extends. The smoothening member is provided between the slide-support portion and the rod. The sealing structure is provided between the slide-support portion and the rod and includes a first seal member provided at one end of the smoothening member, a second seal member provided at an another end of the smoothening member, and a third seal member positioned opposite to the smoothening member with respect to the first seal member.

Abstract: A carbon seal assembly for a gas turbine engine is disclosed. The carbon seal assembly includes a first carbon seal. The carbon seal assembly also includes a first carbon seal spring configured to provide force against the first carbon seal in a first axial direction, the first carbon seal spring having an annular shape and circumferentially disposed around a first shaft of the gas turbine engine.

Abstract: A bearing arrangement for a wheel hub of a motor vehicle, which wheel hub can be driven by a rotary joint. In the bearing arrangement, the wheel hub, which is connected to a wheel flange, and the rotary joint, which is connected to a drive shaft, are connected for conjoint rotation to one another and to a double-row rolling element bearing mounted on the wheel hub, the rolling element bearing having at least one separate inner bearing ring which is arranged axially outward, points towards the rotary joint, and which is axially pretensioned by a collar of the wheel hub impinging on an end face of the inner bearing ring. A sealing ring made of sheet metal rests on the inner bearing ring, and includes a sealing element that rests sealingly on the rotary joint.

Abstract: A regulating flap arrangement (1) of an exhaust-gas turbocharger (3) having a flap shaft (5), which is guided by means of a bushing (10) in the turbine housing (2). A shaped sealing ring (13), as viewed in cross section, has at least one cavity (14). The shaped sealing ring (13) bears simultaneously against the first sealing surface (11) and against the second sealing surface (12), and in order to impart its sealing action, is compressed and deformed in the axial direction (15) of the flap shaft (5).

Abstract: The bearing provides an outer ring, an inner ring, at least one seal to one of the rings and cooperating with the other ring, and at least one sealing flange. The sealing flange includes a fixing portion to fix the flange to the other ring, an end portion and a connecting portion to connect the fixing portion and end portion. The end portion of the flange is curved and disposed axially facing the connecting portion. The curved end portion and connecting portion define an annular space that open radially towards the other ring. The curved end portion is mounted axially in contact against an outer lateral face of the seal.

Abstract: A bearing seal is fitted into a seal groove formed in an outer race, and firmly mounted to the outer race. First detent ribs and second detent ribs are formed on both surfaces of one side of a seal base plate made of rubber and having the shape of a strip. When one side of the seal base plate is fitted into the seal groove formed in an inner diameter surface of the outer race, the first detent ribs and second detent ribs come into elastic contact with the side surfaces of the seal groove, respectively, so as to prevent the bearing seal from being pulled out of the seal groove.

Abstract: A high pressure seal assembly includes a seal element that moves in response to an increase in pressure.

Abstract: Devices and methods for maintaining lubrication of a shaft seal of an open-drive compressor that is operating in a vacuum condition. The external side of the shaft seal allows retention of a volume of lubricant for extending the lifespan of the shaft seal for the open-drive compressor. The devices can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The devices can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU).

Abstract: A gasket for sealing a compartment between rotating and fixed members. The gasket has a first ring adapted to be connected to a rotating member; a second ring adapted to be connected to a fixed member; a first annular elastomeric element carried by the first ring and defining at least a first annular sealing lip cooperating with the second ring to counter the passage of external contaminants inside the compartment; a second annular elastomeric element carried by the second ring and defining at least a second annular sealing lip cooperating with the first ring to counter the passage of lubricant to the outside; and an annular wiper member connected to the first elastomeric element and having a wiping portion cooperating with the second fixing portion of the second support ring to counter the passage of external contaminants from the second ambient to the first sealing lip.

Abstract: The invention provides a sealing device constructed by combination of a slinger and a lip member, the sealing device being capable of improving a sealing performance, particularly a sealing performance against external dusts. In order to achieve the object, in a sealing device having a slinger which is installed to one member among relatively rotating two members, a lip member which is installed to the other member, and structured such that the slinger integrally has a tubular portion which is fitted to the one member and a flange portion which extends in a diametrical direction, and the lip member having an end face lip which slidably comes into close contact with the flange portion, a bent portion protruding in an axial direction toward the lip member is provided in the flange portion, and a labyrinth structure having a minute gap is provided between the bent portion and the lip member.

Abstract: A cartridge seal for centrifugal pump comprises a shaft tube assembly attached to a structure. A shaft tube of the shaft tube assembly receives a shaft of the centrifugal pump. A shaft collar of the cartridge seal attached to a second end of the shaft tube is in communication with a second end of the structure. A chamber tube of the shaft tube assembly and the shaft tube collectively define a chamber that contains compressed gas. A spring is located in the chamber of compressed gas. The compressed gas and the spring cause the shaft tube assembly to substantially prevent movement of fluids between the shaft and the structure in the centrifugal pump.

Abstract: An external bearing seal may have an annular support disk concentric about an axis and an annular seal body. The annular seal body may be supported by the support disk one of radially inward and outward of the support disk with respect to the axis. The seal body may have a plurality of concentric seal rings extending at least partially in the axial direction.

Abstract: A sealed rolling bearing includes an outer race and an inner race. A cylindrical portion provided at the outer portion of a sealing member is press-fitted into each end of the outer race. A cylindrical portion provided at the inner portion of a slinger is press-fitted onto each end of the inner race. The sealing member has at its inner peripheral portion first and second radial lips which are in elastic contact with the slinger to prevent entry of foreign matter into the bearing space. The slinger has an annular portion including an axially outwardly extending, outwardly bent portion provided at its outer peripheral portion. The outwardly bent portion has an outer periphery located inwardly of the outer end of the cylindrical portion of the sealing member. A small gap is defined between the outwardly bent portion and the inner surface of the cylindrical portion as a labyrinth.

Abstract: A sealing device including an annular reinforcing insert couplable with a wheel hub in use and an annular sealing element carried by the reinforcing insert and including at least one sealing lip cooperating with a spacer carried by a wheel support pin in use; the reinforcing insert delimits an annular chamber arranged directly adjacent to the annular sealing element in axial direction, and the device further includes a shield mounted in floating manner with radial and axial play in the annular chamber, including a first radial end, which extends to the lip and couples in forced manner with the spacer in use, and a second radial end, opposite to the first, which cooperates with the reinforcing insert and with the annular sealing element to create a labyrinth seal in the annular chamber interposed in use between the annular lip and an environment (E) external to the wheel hub.

Abstract: A sealing device for sealing an annular gap between a housing having a shaft inserted into a shaft hole for preventing leaking of a fluid on one side in an axial direction to another side in the axial direction that is capable of stabilizing the posture of the sealing lip of the first sealing member made of rubber-like elastomer and exhibiting a good sealing performance. The sealing device includes a first sealing member (120) made of rubber-like elastomer, a second sealing member (140) made of resin, and an adaptor (160) that positions the first sealing member (120) in the axial direction, and a bent portion (163) in which an edge portion (165) is bent toward an outer peripheral side so as to be spaced apart from an outer peripheral surface of a sealing lip (123).

Abstract: A unitized radial fluid seal includes a shell having a first elastomeric seal body affixed thereto and defining a primary seal lip. A sleeve includes a substantially cylindrical, axially-extending sealing flange and a protective flange extending substantially radially from the axially-extending sealing flange. A spring radially urges the primary seal lip into sealing contact with a sealing surface of the axially-extending sealing flange. A second elastomeric seal body is affixed to the sleeve and includes a resiliently-elastic angled lip extending from a terminal end of the axially-extending sealing flange opposite of the radially-extending protective flange. The sealing surface and an axially-outward facing surface of the angled lip define an angle (?) that is between about 130-170°. The primary seal lip is axially retained between the angled lip and the radially-extending protective flange.

Abstract: A seal has a casing having an outer-diameter surface, an interior facing surface, an exterior facing surface, and a chamfered surface between the exterior facing surface and the outer-diameter surface. A sleeve assembly is positioned radially inward from the casing, and has at least one dust lip that engages an interior side of the chamfered surface for blocking debris from the interior facing surface of the seal. A primary sealing body is positioned radially inward from the casing for blocking debris from the interior facing surface of the casing. The sleeve assembly rotates either with the casing or with respect to the casing.

Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.

Abstract: An illustrative embodiment of a multi-shaft seal assembly generally includes a first seal, a second seal, and a collar. In the illustrative embodiment the collar may be integrally formed with a portion of the first seal, and may serve to axially space the second seal from the first seal. The second seal may be formed with a cutaway therein to ensure proper clearance between the second seal and one of the shafts. Other embodiments of the multi-shaft seal assembly use a collar formed with the equipment housing or second seal. Still other embodiments include additional seals for additional shafts.

Abstract: A leak-proof damper with a self-diagnostic feature. An auxiliary oil reservoir body is disposed externally with respect to the damper cylinder and generally adjacent the rod seal, wherein the auxiliary oil reservoir body is concealed by an end cap. The maximum volume of oil retainable by the auxiliary oil reservoir body is predetermined to coincide with a volume of oil which may be lost from the interior of the damper cylinder and yet the damper will still function properly. The auxiliary oil reservoir body may be a seal body having an internal cavity providing an oil retention volume or an absorbent body having an absorbency capacity that provides an oil retention volume.

Abstract: A brake cylinder includes a pressure medium actuated brake piston delimiting a brake chamber and connected to a brake piston rod. The brake piston, together with the piston rod, swivels into positions tilted from a center axis of the brake cylinder during an actuation stroke. The brake piston is rigid and has a guide surface in the shape of a spherical surface of an imaginary sphere on its radially outer peripheral surface. The guide surface is guided along a radially inner cylinder wall of the brake cylinder with the center of the sphere lying on the center axis of the brake cylinder. The brake piston further has at least one elastic sealing element radially displaceable in a radially outer annular groove of the brake piston and delimiting an annular space together with a groove base of the annular groove on its side facing away from the radially inner cylinder wall.

Abstract: In an engine rear seal installed to an engine rear portion having an end plate arranged in a motor exterior side of a housing, and a flywheel arranged in a motor exterior side of the end plate, the engine rear seal has an oil seal and a muddy water preventing seal. The muddy water preventing seal integrally has an attaching portion, and a seal lip directed to a diametrically outer side from the attaching portion and slidably coming into close contact with an end surface in the motor exterior side of the end plate. The seal lip has an inclined lip end back surface portion, and is structured such that a lip end comes into contact with the end surface at the low-speed rotating time and the lip end moves away from the end plate on the basis of an action of a centrifugal force at the high-speed rotating time.

Abstract: A seal lip having: a cylindrical seal surface in close contact with an outer peripheral surface of an inner race with outer side and inner side surfaces standing upright respectively from an outer end and an inner end of the seal surface and reaching a lip supporting portion of a seal member, and protruding on an inner peripheral surface of the lip supporting portion. The outer side surface is a perpendicular surface standing upright from the outer end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race. The inner side surface includes: a perpendicular surface standing upright from the inner end of the seal surface in parallel with the outer side surface; and a conical surface inclined toward the outer side surface extending outward in a radial direction from an outer peripheral end of the perpendicular surface.

Abstract: A sealing device for a rotary feedthrough for receiving a rotating machine element whose outer side can be applied to another machine element, includes at least two sealing elements disposed in tandem in the axial direction of the machine element. Inner sides of the sealing elements are configured for forming an active sealing connection with the rotating machine element. At least one of the sealing elements can be pressurized with an additional force acting in the radial direction so that the force of compression acting on the rotating machine element for the at least one of the sealing elements can be adjusted relative to the force of compression acting on the rotating machine element due to at least one other sealing element.

Abstract: In combination with a body defining an annular space and a member received for rotation or linear movement within the annular space, an annular seal arrangement includes a first sealing member defining a first sealing portion disposed in constant engagement with a peripheral surface of the member during the rotation or the linear movement thereof, a second sealing member defining a second sealing portion disposed in constant engagement with the first sealing member and radially aligned only with the first sealing portion, and a fluid pressure directed at least onto the second sealing member, whereby the second sealing portion is configured to bias the first sealing portion into the constant engagement with the peripheral surface of the member.