Abstract: A shaft-hub connection, in particular for a gearbox of a motor vehicle, comprising a shaft, at least one hub which is connected to the shaft, wherein the hub is of tubular design and a shaft end of the shaft engages on a first hub end of the hub, and a closure element is arranged on a second hub end of the hub. A cavity is formed between the closure element and the shaft end of the shaft. The closure element is designed in such a manner that gaseous medium can escape via the closure element in the event of a positive pressure in the cavity.

Abstract: A slip yoke assembly including a slip yoke having a long bore extending between a first end and a second end and a counterbore at the second end of the long bore. The counterbore has a first wall which defines a first diameter which is greater than a major diameter of the long bore. An annular groove is positioned between the long bore and the first diameter. A sealing member is disposed within the annular groove. The slip yoke assembly also includes a plug disposed within the counterbore and over the sealing member. The plug is secured to the slip yoke by a lip formed over the plug.

Abstract: A slip yoke assembly is provided. The slip yoke assembly includes a slip yoke having a long bore extending between a first end and a second end and a counterbore at the second end of the long bore. The counterbore has a first diameter and a second diameter. The first diameter is greater than a major diameter of the long bore and the second diameter is greater than the first diameter. The slip yoke assembly also includes a plug having an elastomeric member secured to a surface thereof. The elastomeric member is disposed within the first diameter and the plug is disposed within the second diameter. The plug is secured to the slip yoke by a lip formed over the plug.

Abstract: A universal joint or a pivot pin cross with a universal joint pivot pin. A bearing bush seal is fastened to the universal joint pivot pin and absorbs an axially directed force. A universal joint is to be provided which is simple and can be manufactured inexpensively, which makes no compromises with respect to the sealing effect. For this purpose, a bearing bush seal is provided which deflects an axially directed force into a radial direction. This makes an axial stop at the universal joint pivot pin unnecessary. Moreover, manufacturing the bearing bush seal and the accommodation thereof at the universal joint pivot pin are accomplished in a single manufacturing step.

Abstract: A bellows for a joint arrangement is disclosed. The bellows comprises an axis, a radius and two ends, a receiver for a retaining ring being formed in the zone adjacent to an end. The receiver is delimited by a plurality of elevations on the end which have a narrow cross-section in the direction of the radius and different flexural properties in opposite directions of the axis.

Abstract: A cross for a universal joint includes a body portion having a trunnion that extends outwardly therefrom. The trunnion includes a surface. A bearing cup is mounted on the trunnion. A retainer includes a first portion that is supported on the bearing cup, a second portion that extends at an angle from the first portion, and a third portion that extends at an angle from the second portion into engagement with the surface of said trunnion. The retainer allows the assembly of the bearing cup and the retainer to be installed on the trunnion with a relatively small force, but requires a relatively large force to remove the assembly of the bearing cup and the retainer from the trunnion.

Abstract: A method for retaining lubrication in a splined joint comprises the steps of forming a seal between an inward surface of a grease seal cup and a first component, forming another seal between an outward surface of the grease seal cup and a sealing member extending from a second component, and engaging an end portion of the grease seal cup with an end portion of the first component, so that the end portion of the grease seal cup resists axial displacement of the grease seal cup during engagement of the first component with the second component. The grease seal cup of the method has a cylindrical portion integral with the end portion. The cylindrical portion has a tapered annular wall with the inward and outward surfaces. The end portion of the grease seal cup extends radially and inwardly from the cylindrical portion, so that the tapered annular wall is squeezed between the first component and the sealing member.

Abstract: A seal retainer device for fixing the position of at least one sealing device, comprising at least one contact surface for fixing the position of a seal in the radial and/or axial direction, a first functional surface for linking to a component, and at least one second functional surface to form an axial or radial bearing sliding surface. In addition, the invention relates to a power transmission unit having a seal retainer that holds seals for sealing off two pressure chambers.

Abstract: A universal joint includes a yoke connected to a cruciform by bearing cup assembly. The bearing cup assembly includes a bearing cup, a bearing and an integral seal deflector retainer. The bearing cup assembly is rotatably coupled to a trunnion of the cruciform. The integral seal deflector retainer includes a case engaging the cruciform to retain the bearing assembly on the trunnion.

Abstract: A seal 5 free from a core bar is fitted on each of a vertical shaft 1v and a horizontal shaft 1h of a cross shaft 1. Bases 5c of adjoining seals 5 are pressed against each other in back-to-back contact.

Abstract: A universal joint (10) includes a cross member (24) having a trunnion (26) with a radially outer surface (32). A cup (20) is connectable with the trunnion (26) and a yoke (18). The cup (20) has an open end (54) with a radially outer surface (58). A bearing (30) supports the cup (20) for rotation relative to the trunnion (26). A seal (48) engages the trunnion (26) and the cup (20). The seal (48) has a first axial end portion (50) engaging the radially outer surface (32) of the trunnion (26) and a second axial end portion (52) engaging the radially outer surface (58) of the cup (20). The first axial end portion (50) is stretched over the radially outer surface (32) of the trunnion (26) and the second axial end portion (52) is stretched over the radially outer surface (58) of the cup (20).

Abstract: A slip joint includes first and second shafts that are connected for concurrent rotational movement and for relative axial movement, such as by respective pluralities of axially extending spline. A seal can is secured to the first shaft and extends about a portion of the second shaft. A seal assembly is secured to the second shaft and engages a portion of the seal can. The seal assembly includes first and second seals that are each generally concave in shape. Each of the first and second seals is generally V-shaped in cross section, having a radially innermost end, an intermediate portion, and a radially outermost end, wherein the radially innermost and outermost ends are located closer to one another than the radially intermediate portions. the first and second seals are axially spaced apart from one another so as to define an annular space therebetween that can be filled with a sealing material, such as a waterproof grease.

Abstract: A sealing assembly for a slip shaft drive assembly includes a generally resilient seal and a substantially rigid cover which is mounted at an end of a slip yoke. The cover includes an axially extended stop portion which is of an axial length to provide contact with a flange of a splined shaft prior to an end of the splined shaft contacting a plug. The stop portion defines the minimum length to which the slip shaft drive assembly may be collapsed and thereby eliminates the possibility of the plug being dislodged during shipping and/or handling.

Abstract: A universal joint includes a pair of bifurcated yokes interconnected by a cruciform. The cruciform includes four orthogonal trunnions each including a radially extending protrusion. A seal engages the protrusion to retain a bearing assembly on each trunnion.

Abstract: A universal joint includes a pair of bifurcated yokes interconnected by a cruciform. The cruciform includes four orthogonal trunnions each including a lubricant passage. A seal includes a plurality of protrusions engaging a portion of the trunnion to provide a purging path for trapped air.

Abstract: A universal joint includes a pair of bifurcated yokes interconnected by a cruciform. The cruciform includes four orthogonal trunnions each including a radially extending protrusion. A seal engages the protrusion to retain a bearing assembly on each trunnion.

Abstract: Boot systems and boot attachment methods are provided to protect a double-tube vehicle driveshaft from premature wear or corrosion. One boot system comprises a boot portion having annular folds, opposite ends, and collar portions. The collar portions adjoin the boot portion at its opposite ends. At least one of the collar portions has a splined portion. The boot system may be utilized in a driveshaft comprising first and second members having splined portions. The second member of such a driveshaft is telescopically resident within the first member, and the splined portion of the first member cooperates with the splined portion of the second member. The boot attachment method involves sliding the boot over at least a part of the first and second members of the driveshaft, and securing the first and second collar portions to the respective first and second members.

Abstract: A sealing assembly for a slip shaft drive assembly includes a generally resilient seal and a substantially rigid cover which is mounted at an end of a slip yoke. The cover includes an axially extended stop portion which is of an axial length to provide contact with a flange of a splined shaft prior to an end of the splined shaft contacting a plug. The stop portion defines the minimum length to which the slip shaft drive assembly may be collapsed and thereby eliminates the possibility of the plug being dislodged during shipping and/or handling.

Abstract: A universal joint seal for retaining lubricant therein. The seal cooperates to form a static seal with the trunnion and a static seal with the bearing cup and permits relative angular movement between the trunnion and bearing cup through a flexible web portion. The seal optionally permits venting of pressure within the grease cavity formed between the trunnion and bearing cup. The seal also has a passage communicating with the grease cavity. The seal has an outward facing lip seal that provides a fluid barrier to the migration of lubricant out of the passage. In response to a moderate pressure level within the grease cavity, the lip moves away from the contacting surface so as to vent the moderate pressure within the grease cavity out of the sealed region and to prevent an excessive pressure differential from developing across the lip. Several alternate embodiments permitting venting of pressure from the grease cavity are disclosed.

Abstract: A seal for a universal joint cross trunnion is accommodated in a bearing bush for a universal joint shaft and has an outer and an inner, ring-shaped, sealing body which are insertable into the bearing bush and operatively connected, and which permit mutual adjustment. The two sealing bodies include meshing sealing elements having a positive-locking design. The inner sealing body includes an enveloping part which overlaps the other sealing body and/or the bearing bush at least partially.

Abstract: A pivot joint has a low friction rotational property by allowing the elastomeric bushing to rotate with respect to the inner metal. A low friction material can be incorporated between these two components to facilitate the rotation, if desired. The elastomeric bushing helps to isolate the pivot joint and prevent the transmission of vibrations. In one embodiment, the elastomeric bushing is also allowed to pivot about an axis generally perpendicular to its axis of rotation.

Abstract: A structure positively retains the bearing cups on the trunnions of a universal joint cross prior to assembly into a vehicle. The cross includes a body portion having a plurality of trunnions extending outwardly therefrom. Each of the trunnions may have an annular ridge formed thereon defining an increased outer diameter. A bearing cup is rotatably mounted on each of the trunnions. Each of the bearing cups has a rigid dust guard attached thereto. Each of the dust guards has an inwardly extending portion that defines an inner diameter. The inwardly extending portion of each of the dust guards extends at an angle that is less than ninety degrees relative to an axis defined by the associated trunnion and relative to the sides of the bearing cups. The inner diameters defined by the inwardly extending portions of the dust guards are smaller than the outer diameters defined by the annular ridges.

Abstract: A structure positively retains the bearing cups on the trunnions of a universal joint cross prior to assembly into a vehicle. The cross includes a body portion having a plurality of trunnions extending outwardly therefrom. Each of the trunnions may have an annular ridge formed thereon defining an increased outer diameter. A bearing cup is rotatably mounted on each of the trunnions. Each of the bearing cups has a rigid dust guard attached thereto. Each of the dust guards has an inwardly extending portion that defines an inner diameter. The inwardly extending portion of each of the dust guards extends at an angle that is less than ninety degrees relative to an axis defined by the associated trunnion and relative to the sides of the bearing cups. The inner diameters defined by the inwardly extending portions of the dust guards are smaller than the outer diameters defined by the annular ridges. Thus, during installation, the inwardly extending portions.

Abstract: An integral yoke/slinger assembly replaces a conventional two-piece design. The integral yoke/slinger arrangement provides a new and improved shaft seal particularly adapted for use in yoke and flange arrangement exposed to a heavy concentration of air entrained foreign material, whereby a more efficient and economical method for manufacturing and assembling a yoke, slinger and seal arrangement for a drive axle system is provided.

Abstract: A seal for a universal joint cross trunnion is accommodated in a bearing bush for a universal joint shaft and has an outer and an inner, ring-shaped, sealing body which are insertable into the bearing bush and operatively connected, and which permit mutual adjustment. The two sealing bodies include meshing sealing elements having a positive-locking design. The inner sealing body includes an enveloping part which overlaps the other sealing body and/or the bearing bush at least partially.

Abstract: A rotating lubrication applicator is provided for metered lubrication of machine parts including parts of drive mechanisms. The preferred applicator includes an inner hub and an outer lubricating portion. The outer lubricating portion is made out of a solid lubricant containing microporous polymeric matrix material. Tensioning devices including the rotating lubrication applicators are also provided as are methods of using the same. The applicator will provide a metered amount of lubricant to surfaces which come into contact with outer lubricating portion.

Abstract: A dust cover assembly for a slip spline assembly acts as a mechanical fuse in response to fluid pressure and includes a cup shaped dust cover and two snap rings for securing the dust cover in the yoke bore end of the slip spline assembly. The larger snap ring is fitted in an annular groove in the yoke while the smaller snap ring is fitted in an annular groove in cylindrical side wall of the dust cover. The groove in the side wall of the dust cover divides the side wall up into exposed and unexposed segments. By selecting the radial thicknesses of the groove in the side wall or the axial length of unexposed segment, the failure limit at which the dust cover pops out from the yoke due to pressures or forces in the yoke bore can be readily predicted. The dust cover assembly provides increased reliability of the slip spline assembly by providing a consistent pressure or load in the yoke bore which will cause the dust cover to release from the yoke and relieve the yoke bore pressure.

Abstract: This spider for a universal joint includes a central body (2) intended to be connected to a shaft and from which several arms (3) project, a roller (5) mounted so that it can roll and slide on each arm (3) by means of a ring of needles (4), and a member (8) for retaining each roller (5) on its arm (3). The arm (3) includes a hollowed peripheral raceway (12) in which the needles (4) run. The retaining member includes a collar (8) mounted at the end of the arm and spaced away from the needles (4), which collar has, on the outside, over at least most of its periphery, a rim (18) for positive retention of the roller.

Abstract: A seal assembly and seal guard are provided for a bearing cup positioned on a trunnion of a universal joint. The seal assembly includes a support ring and an elastomeric seal. The support ring is generally L-shaped in cross section, having a lower radial flange that is connected to an axial portion. The axial portion of the support ring is press fit within an inner bearing surface of the bearing cup. The support ring flange extends radially outwardly adjacent the open end of the bearing cup. The elastomeric seal is disposed within the support ring axial portion. An annular elastomeric seal guard is removably secured to the seal assembly. The seal guard is generally funnel shaped. The seal guard has an upper body with an annular interior groove. The interior groove has a diameter slightly larger than the diameter of the support ring flange. Thus, the seal guard can be secured to the support ring flange. The seal guard has a lower body inclined radially inwardly from the upper body.

Abstract: A structure for positively retaining the bearing cups on the trunnions of a universal joint cross prior to assembly into a vehicle includes a cross having a body portion with a plurality of trunnions extending outwardly therefrom. Each of the trunnions has an annular ridge formed thereon defining an increased outer diameter. A bearing cup is rotatably mounted on each of the trunnions. Each of the bearing cups has a rigid dust guard attached thereto. Each of the dust guards has an inwardly extending portion that defines an inner diameter. The inner diameters defined by the inwardly extending portions of the dust guards are smaller than the outer diameters defined by the annular ridges. Thus, during installation, the inwardly extending portions of the dust guards snap over the outwardly extending ridges formed on the trunnions. In this manner, the bearing cups are positively retained on the trunnions during shipment.

Abstract: A rotating lubrication applicator is provided for metered lubrication of machine parts including parts of drive mechanisms. The preferred applicator includes an inner hub and an outer lubricating portion. The outer lubricating portion is made out of a solid lubricant containing microporous polymeric matrix material. Tensioning devices including the rotating lubrication applicators are also provided as are methods of using the same. The applicator will provide a metered amount of lubricant to surfaces which come into contact with outer lubricating portion.

Abstract: A one-piece sealing system for a universal joint assembly. A lubricant seal adapted to prevent the leakage of lubricant between the trunnion and bearing cup of a universal joint wherein the trunnion has a cylindrical portion merging into an outwardly flaring arcuate portion, the seal including an elastomer body bonded to the interior of a stiffening ring.

Abstract: A vent regulator device adapted for use in a constant velocity joint including a housing having an inner surface defining an inner cavity. The inner surface includes an annular portion, and a domed portion which has a relatively small vent hole centrally located therein. The vent regulator device further includes a member having a first end and a second end where the first end is mounted to the inner surface of the housing and the second end is disposed proximate the vent hole. When the constant velocity joint is in one of either a static state and an active state rotating at speeds below a predetermined threshold, the vent hole is overlappingly covered by the first end of the member, thereby preventing grease from penetrating the hole. Moreover, when the constant velocity joint is in an active state rotating at speeds above the predetermined threshold, centrifugal forces cause the second end of the member to move away radially from the vent hole to allow venting of air therethrough.

Abstract: A seal between two telescoping members in a slip yoke assembly including a driveshaft section and a slip yoke. A circumferential groove is formed in the outer surface of one of the telescoping members of the slip yoke assembly. The groove defines an annular collar which extends circumferentially about the end of the slip yoke. One or more recesses are formed in the bottom of the groove. Additionally, one or more axially extending slots are formed through the collar. Preferably, the slots are angularly offset from the associated recesses by a predetermined amount. One or more radially inwardly extending protrusions are formed at one end of the seal. To install the seal on the slip yoke, the seal is initially oriented relative to the end of the hollow cylindrical end portion such that the protrusions are axially aligned with the slots. Then, the seal is moved toward the slip yoke until the protrusions engage the outer end surface of the slip yoke axially adjacent the slots.

Abstract: A sealing device for a drive line slip yoke includes a generally resilient seal and a substantially rigid cover that cooperate to provide a fluid-tight seal at the interface between a slip yoke and an axially moving splined shaft. The seal has a mounting portion that includes a shoulder received within a groove defined on an outer surface of the slip yoke. The cover is snapped over the seal and maintained in position by cooperating tabs on the cover and a groove defined on an outer surface of the seal. The seal includes a sealing portion having three axially spaced and radially inwardly extending lips. A middle lip acts as an O-ring that serves as a back-up in the event that one of the other two lips becomes damaged or deteriorates with use. The substantially rigid cover serves to maintain the seal in proper engagement with the end of the slip yoke and protects the seal from damage potentially caused by debris encountered during operation.

Abstract: A seal for a constant velocity joint, the seal comprising a main seal body having a central axis of rotation, the main seal body including an inner wall and an outer wall and opposing first and second sides, a raised rib extending out from the first side, the raised rib being axially deformable in such a manner as to create an axial force parallel to the axis of rotation for reducing the axial slip between a constant velocity joint a transmission output component, a flange seal portion extending out away from the outer wall, the flange seal portion having an inner contacting surface for contacting the constant velocity joint and defining a protective seal between the constant velocity joint and the transmission output component and a rigid coupling member connected to the main seal body having an inner wall portion for contacting the transmission output component whereby the rigid coupling member supports the main seal body and connects the seal to the transmission output component.

Abstract: A sealing device for a driveline slip yoke includes a flexible diaphragm and a generally rigid cap that cooperate to provide a fluid-tight seal across one end of the slip yoke. The diaphragm and the cap have outer peripheral edges that are preferably received within a groove on the slip yoke such that the cap maintains the diaphragm in proper sealing engagement with the slip yoke. The flexible diaphragm flexes and extends inwardly and outwardly of the slip yoke in response to varying pressures within the slip yoke caused by the relative axial movement of a splined shaft within the yoke. The cap not only maintains the diaphragm in proper sealing engagement with the slip yoke, but also limits the outward flexing of the diaphragm responsive to the pressure within the slip yoke. A slip yoke sealing device designed according to this invention is especially useful in applications that require that lubricant be maintained within the slip yoke over extensive periods during extensive use.

Abstract: A slip joint for a driveshaft having first and second universal joint yokes includes a first shaft extending rearwardly of the first yoke and rotatable therewith and a second shaft extending rearwardly of the second universal joint yoke and rotatable therewith. The shafts have external and internal splines to enable slidable but nonrotatable movement between the shafts. A sleeve extends rearwardly from the first yoke around the first shaft and a portion of the second shaft. The second shaft has two seals extending therearound and engagable with the interior surface of the sleeve. The first shaft has a bore extending completely therethrough and communicating with passages at both ends of the shaft. A lubricant is applied to the splines prior to assembly and a vent opening is plugged with the yokes in the middle position after assembly. The slip joint is completely maintenance free, never needing lubrication.

Abstract: A slip yoke assembly for a vehicle drive train assembly includes a yoke shaft having a shaft portion with a plurality of external splines formed thereon. A hollow transition member having a plurality of internal splines is connected to the yoke shaft for rotational driving movement, yet is permitted to move axially relative thereto. A hollow weld ring is secured to the yoke shaft for rotational movement therewith. The weld ring extends co-axially about the splined connection between the transition member and the shaft portion of the yoke shaft and provides an exterior surface to which one or more balance weights may be secured. The weld ring also provides an annular space to retain a quantity of lubricant for the splined connection. A flexible convoluted boot is provided to seal the splined connection between the transition member and the shaft portion of the yoke shaft. A first end of the boot is secured to the weld ring, while a second end of the boot is secured to the transition member.

Abstract: The transmission joint comprises a joint body (12) connected to a first shaft and defining a cavity (14) in which are formed a plurality of rolling ways (26) in each of which is received a rolling element (24) connected to a second shaft (18), and a member (30) for axially retaining the joint body (12) relative to the second shaft (18), this member (30) being elastically deformable whereby to permit the inclination of the axis of rotation (X--X) of the first shaft relative to the axis of rotation (Y--Y) of the second shaft, this member (30) constituting a sealed partition wall closing the cavity (14) on one of the sides of the latter. The cavity (14) is filled with an incompressible fluid and the member (30) is incapable of being axially deformed under the effect of the resultant of the pressure forces to which it is subjected which result from an axial biasing of one of the shafts relative to the other.

Abstract: An extra short transmission shaft has two telescopically fitted tubular shaft sections (6,7) having diameters (D',D) substantially greater than the basic diameters of coupling forks (8,9) associated with respective ends of the shaft sections. The increased diameters of the shaft sections ensure a greater torque transmitting contact area between meshed teeth formed on such sections, this strengthening the coupling formed thereby and/or permitting the length of the meshed teeth, and thus of the shaft itself, to be reduced to a minimum without unduly affecting the coupling strength. Preferably, each of the coupling forks is integral with the free end of its respective shaft section.

Abstract: A slip joint seal for a driveshaft is between two universal joint yokes. A male splined shaft rotates with a first yoke and a female splined shaft rotates with a second yoke, with the two being mechanically engaged for slidable but nonrotational movement during operation of the driveshaft. A sealing sleeve extends from the first yoke around the male splined shaft and is of a larger diameter than the female splined shaft. The female splined shaft has a single, outwardly-facing, annular seal at its outer end, away from the second yoke, which seal engages the inner surface of the sealing sleeve. The female splined shaft also has a grease fitting for supplying grease to the shafts, with excess grease being capable of passing by the seal, which also acts as a wiper to remove contaminants within the sealing sleeve.

Abstract: A universal joint (1) has two joint yokes (2 and 3) each including two yoke arms (4 and 5). A supporting member (8) including legs (9 and 10) is arranged to extend transversely relative to the rotational axis (D) of the joint yokes (2, 3). The connection of the two joint yokes (2 and 3) is effected through yoke arm through-bores (6 and 7) and the support member bores (11 and 12) via a bearing pin (13).

Abstract: A slip joint seal for a driveshaft is between two universal joint yokes. A male splined shaft rotates with a first yoke and a female splined shaft rotates with a second yoke, with the two being mechanically engaged for slidable but nonrotational movement during operation of the driveshaft. A sealing sleeve extends from the first yoke around the male splined shaft and is of a larger diameter than the female splined shaft. The female splined shaft has a first outwardly-facing, annular seal at its outer end, away from the second yoke, which seal engages the inner surface of the sealing sleeve. A propeller shaft is affixed to the end of the female splined shaft toward the second yoke and to the second yoke, preferably being of the same diameter as the sleeve. A second annular seal which is the same size and the first one is carried by an end of the male splined shaft beyond the female shaft. The second seal engages the inner surface of the propeller shaft.

Abstract: A transmission joint has a body connected to a first shaft which delimits a cavity. Inside the cavity is formed at least one pair of running tracks, in which is received a running element connected to a second shaft. The joint has an element for axially retaining the body relative to the second shaft, which element comprises an elastically deformable element which has the shape of a body of revolution, a high axial rigidity and two coaxial, cylindrical joining surfaces, an inner surface and an outer surface, which are connected to the second shaft and the body, respectively.

Abstract: A "standpipe" lubrication device for a universal joint assembly. In a preferred form, the lubrication device includes a plurality of annular protuberances on opposed first and second ends. The protuberances, serving as sealing and tolerance absorption media, define adjoining frustoconical and cylindrical surfaces. Each cylindrical surface terminates in a radially extending annular surface, the latter adapted to provide a self-locking feature against dislodgement of the device from a lubrication passage of the trunnion. Also in the same preferred form, the lubrication device is formed of a moldable material characterized by dimensional heat stability, for assuring proper operation at elevated temperatures.

Abstract: A seal is held against the end of the sleeve of a driveline yoke by a retainer formed with angularly spaced windows having axially facing edges which snap past and lock behind angularly spaced lugs on the sleeve when the retainer is telescoped onto the sleeve. Release of the retainer is effected by twisting the retainer to cause circumferentially facing side edges of the windows to cam against sloped side surfaces of the lugs and deflect the axially facing edges of the windows outwardly from behind the lugs so as to permit the retainer to be slipped axially off of the sleeve.

Abstract: This anti-lead seal prevents the accumulation of torsional and tangential stresses on one and the same sealing element by way of an intermediate sleeve (6) which forms an axial seal gap (7) with one of the coordinated corrugated or housing-like machine parts (1, 2) and a radial seal gap (8) with the other. Since the intermediate sleeve (6) is firmly retained via a torsional safety (11) and an axial fixation (13), the sealing elements (9) for the radial seal gap (7) are stressed only by relative axial movements and the sealing elements (12) for the axial seal gap (8) are stressed only by rotational movements. Here simple elastomeric parts can be used that are easy to supply and can be quickly mounted.

Abstract: A universal joint assembly comprises a first rotary member having a first longitudinal axis and an outer tubular portion at one end thereof concentrically disposed about the axis, a second rotary member having a second longitudinal axis and an inner tubular portion at one end thereof concentrically disposed about the axis, the second member being adapted to be telescopically received within the outer tubular end portion of the first member, a ball bearing for transmitting axial loads between the first and second members, the bearing pivotally connecting the first and second members whereby to provide limited omni-directional pivotal movement of one of the first and second members with respect to the other of the first and second members about a point of intersection of the longitudinal axes of the first and second members, and a slot and key engagement disposed between the outer and inner tubular end portions for transferring torque between the first and second members, the longitudinal slots formed in one of

Abstract: A seal arrangement for providing a reliable seal between a shaft and an opening through which the shaft passes where the shaft undergoes both rotary and axial movement relative to the opening. The seal assembly consists of a seal suitable for relative rotary motion between the gasket surface and the surface to be sealed, a sleeve, and a seal suitable for sealing when there is relative axial movement between the seal and the sealed surface. The sleeve is used to isolate the rotary and axial motion of the shaft into two components so that each seal will only see one type of motion. In order to accomplish this, the sleeve is restrained from axial motion relative to the opening and has synchronous rotary motion with the shaft. This seal arrangement is particularly useful in pivotable drive assemblies where the use of a simple universal joint will impose a reciprocating motion on a drive axle.