WO2004038237A1 - Soufflet multicouche - Google Patents

Soufflet multicouche Download PDF

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Publication number
WO2004038237A1
WO2004038237A1 PCT/DE2003/003521 DE0303521W WO2004038237A1 WO 2004038237 A1 WO2004038237 A1 WO 2004038237A1 DE 0303521 W DE0303521 W DE 0303521W WO 2004038237 A1 WO2004038237 A1 WO 2004038237A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing bellows
layer
bellows
hollow body
wall
Prior art date
Application number
PCT/DE2003/003521
Other languages
German (de)
English (en)
Inventor
Frank Budde
Georg Wolf
Original Assignee
ZF Lemförder Metallwaren AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Lemförder Metallwaren AG filed Critical ZF Lemförder Metallwaren AG
Priority to EP03773566A priority Critical patent/EP1554501A1/fr
Publication of WO2004038237A1 publication Critical patent/WO2004038237A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B29C49/0411—Means for defining the wall or layer thickness
    • B29C49/04112—Means for defining the wall or layer thickness for varying the thickness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B29C2049/222—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons only parts of the preforms or parisons are layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/18—Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/703—Bellows

Definitions

  • the invention relates to a sealing bellows for ball joints, drive shafts and the like according to the preamble of patent claim 1.
  • Sealing bellows of the type mentioned at the outset are used where it is important to protect joints, such as ball joints, or shaft connections, such as universal joints or ball constant velocity joints, from environmental influences, such as dirt and moisture.
  • joints such as ball joints, or shaft connections, such as universal joints or ball constant velocity joints
  • generic bellows are used
  • sealing bellows comprise an elastic bellows, which has a pin-side and a joint-side opening.
  • the sealing bellows closes the joint housing to the outside and is penetrated by the joint pin of the ball joint.
  • Another task of such bellows is to prevent the joint from running dry due to the loss of the lubricant.
  • the sealing bellows forms a chamber for receiving the lubricant due to the shape between its inner wall and the joint.
  • Generic sealing bellows such as are known for example from DE 198 50 378, are mostly produced from elastomer mixtures such as rubber or chloroprene rubber or from thermoplastic elastomers, and have to meet a multitude of different requirements with regard to design requirements and material properties. These include in particular the required sealing effect between the bellows and the joint, a sufficient one
  • Ball shaft desirable; likewise for reasons of a good sealing effect, however, the highest possible coefficient of friction is desired on the tight fit of the bellows on the joint housing.
  • the sealing bellows according to the present invention is used in a manner known per se for protection and sealing, in particular, but in no way exclusively, of ball joints, or for example also of shaft connections.
  • the sealing bellows is characterized in that the wall of the sealing bellows is composed of at least two layers of elastomer or polymer material.
  • a material can be used in the inner region of the wall of the sealing bellows that is optimized in particular for elasticity and resistance to the lubricant used, whereas a material can be used on the outside of the sealing bellows. which is particularly resistant to environmental influences such as UV light, aggressive media or moisture.
  • one of the material layers of the wall of the sealing bellows is designed as a core or carrier layer and a layer arranged on the surface of the wall as a skin layer.
  • the core or carrier layer particularly preferably has a greater wall thickness than the skin layer.
  • the sealing bellows has a core or carrier layer which can be optimized essentially with regard to the volume properties of the material, such as elasticity, flexibility, resistance to cold as well as tensile stress and elongation at break, while an outer skin layer of the sealing bellows, for example, essentially the surface properties of the material, such as chemical resistance, wear resistance, coefficient of friction, sealing effect or diffusion resistance can be optimized.
  • the core or carrier layer consists of a foamed material.
  • a whole range of advantages can be achieved by using a foamed material as a carrier layer. In this way it is possible to still produce a sealing bellows with a relatively large wall thickness using only a small amount of material. On the one hand, this saves valuable material, and on the other hand a sealing bellows with a relatively low mass is obtained, which is particularly important when used in the area of the sprung masses on the wheel suspension of a motor vehicle.
  • sealing bellows materials can also be used for the production of sealing bellows, which would not be suitable for the production of sealing bellows due to their mechanical properties, for example due to their low elasticity.
  • the range of materials that can be used is thus expanded, which on the one hand increases the freedom of choice for the designer, but on the other hand also makes it possible to use particularly inexpensive materials for the production of sealing bellows.
  • these advantages are only made possible by the multi-layer structure of the sealing bellows according to the invention, because in this way the sealing bellows can have a mechanically and chemically sensitive foamed core layer, which is, however, provided with protective and / or stabilizing skin layers. This also practically eliminates the lifespan of plasticizers from the sealing bellows, which leads to harmful embrittlement and subsequent failure of the sealing bellows.
  • a foamed sealing bellows is in no way inferior in quality properties to a sealing bellows made of solid material.
  • the skin layer has a wall thickness in the range of only 0.01 to 1 mm. This is advantageous, since in this way a particularly high-quality material can be used for the inner and / or outer surface of the sealing bellows, without the
  • the sealing bellows can obtain particularly advantageous chemical or mechanical properties in a largely cost-neutral manner.
  • Seal bellows have a skin layer on both surfaces.
  • the two skin layers can, as is provided by a further embodiment of the invention have different material properties or wall thicknesses.
  • the mechanical and / or chemical stress on a sealing bellows is often different in different areas of the sealing bellows.
  • the fastening areas at the two axial ends of the sealing bellows are subjected to particularly high mechanical stresses due to the clamping of the sealing bellows arranged there on the joint and due to the friction occurring there between the sealing bellows and the joint.
  • certain others are subjected to particularly high mechanical stresses due to the clamping of the sealing bellows arranged there on the joint and due to the friction occurring there between the sealing bellows and the joint.
  • the wall of the sealing bellows or one or more of the layers of the wall of the sealing bellows has a wall thickness that varies over the length of the bellows. This can be achieved, for example, by the fact that the semifinished product used to manufacture the bellows already has a wall thickness of one or more layers which varies accordingly over its length. In this way, certain areas of the sealing bellows can be provided with a larger wall thickness and a correspondingly higher load capacity, while those with less load can have a correspondingly reduced wall thickness of one or more layers.
  • At least one layer or layer of the sealing bellows in particular a skin layer, particularly preferably the inner skin layer of the sealing bellows, extends only to partial regions of the length of the sealing bellows.
  • the sealing bellows can be provided with a skin layer which Requirements met optimally.
  • that part of the sealing bellows which is in contact with the joint housing can be kept free of the inner skin layer, which results in optimal coefficients of friction and an optimal sealing effect.
  • the wall of the sealing bellows comprises at least one further layer of a material that fulfills special functional requirements.
  • a material that fulfills special functional requirements can be, for example, but by no means exclusively, a special barrier layer with which the diffusion of, for example, lubricants or solvents or moisture through the wall of the sealing bellows can be reduced.
  • Another example of an additional functional intermediate layer is the possibility of including a reinforcing layer, for example an intermediate or intermediate layer in the form of a resistant textile fabric.
  • adhesives or means for improving the compatibility of the layer materials are arranged between different layers or directly in at least one material component of the sealing bellows.
  • the use of adhesives between different layers of the wall of the sealing bellows means that even very different materials, such as, for example, only a core made of rubber and a skin layer made of a polyolefin, adhere well to one another or are intimately connected to one another.
  • the invention further relates to a method for producing a sealing bellows for ball joints, shaft connections and the like, in which in a first
  • an essentially prismatic hollow body is generated, which has a wall made of at least two polymer layers.
  • the hollow body is introduced into a mold cavity.
  • the hollow body is then shaped in a further process by applying internal pressure and then vulcanizing, solidifying or solidifying the hollow body in the mold cavity.
  • the bellows now formed is removed from the mold cavity or removed from the mold.
  • a multi-layer hollow body is produced by coating a single or multi-layer hollow body on its inside and / or outside.
  • the coating of the hollow body is particularly preferably carried out by fluidized bed sintering or rotary sintering. That too is
  • the multilayer hollow body is produced by extrusion of an essentially endless tube with subsequent cutting to the desired length.
  • Such a hollow body produced by coextrusion with a multilayer wall can then be placed directly in a blow mold and shaped into a sealing bellows with a multilayer wall.
  • At least one layer or layer of the wall of the hollow body is produced only on partial areas of the axial length of the hollow body. This can be done, for example, but by no means exclusively, by switching the nozzle areas of the extruder head on and off (sequential extrusion) or by correspondingly controlling the nozzle widths of the extruder during extrusion.
  • such a selective generation of certain layers of the wall of the hollow body enables the production of a sealing bellows, in which certain layers of the wall, for example the inner skin layer, are only present in certain areas of the sealing bellows, while in other areas, for example in fastening areas of the Bellows are missing.
  • sealing bellows can be produced in this way, which are optimally tailored to the respective requirements, and which in particular meet the requirement for particularly high resistance to the influence of media and the requirement for particularly tight and secure attachment to the ball neck or joint housing ,
  • one or more layers of the wall of the hollow body can have a thickness that is variable over the axial length of the hollow body during the manufacture of the hollow body. In this way, hollow bodies can be produced which can be further processed directly into sealing bellows with variable wall or layer thicknesses.
  • Fig. 1 in a schematic longitudinal sectional view of a core layer and outer
  • Sealing layer comprising skin layer; Fig. 2: in a sectional view corresponding to Fig. 1 with a sealing bellows
  • FIGS. 3, 4 in a representation corresponding to FIGS. 1 and 2, two variants of one
  • the sealing bellows each show half longitudinal sections through the wall of a sealing bellows, which is provided for sealing a ball joint.
  • a first fastening region 1 can be seen in each case, with which the sealing bellows can be arranged and fastened on the joint housing (not shown) of a ball joint.
  • the sealing bellows has a circumferential annular groove 2 in the region of its first fastening region 1, into which a ring-like circumferential clamping element, for example a clamping ring, can be inserted after the sealing bellows has been fitted onto the joint housing of the ball joint Fastening area exerts a radially inward clamping force on the sealing bellows.
  • the sealing bellows is fastened in the region of its second fastening region 3 with the aid of an annular groove 4 arranged there in the outer region and a further clamping ring which can be inserted therein on the ball neck of the joint ball of the ball joint.
  • the sealing bellows shown there has a two-layer wall consisting of core or carrier layer 5 and skin layer 6. Thanks to this two-layer structure, it is possible to choose an elastomer material for the core or carrier layer 5 that optimally meets the requirements regarding elasticity and flexibility at high and low temperatures, sealing effect, and costs, while for the skin layer 6 a if necessary, particularly high quality material can be selected that can be optimized in particular with regard to the resistance to environmental influences such as UV light, salt water or aggressive media.
  • Another aspect of choosing the optimal skin material is that when using a skin material with a low coefficient of friction, the assembly of the clamping rings in the grooves 2 or 4 is made considerably easier by the fact that the clamping rings move into the grooves 2 and 4 by themselves slide in, whereby the repressing of the clamping rings into the ring grooves, which is often required in the prior art, can be dispensed with without replacement after insertion.
  • a further embodiment of a sealing bellows is also shown in schematic longitudinal section in FIG. It can be seen that the sealing bellows according to FIG. 2 has a wall made up of three layers.
  • the wall of the sealing bellows according to FIG. 2 has an inner skin layer 1, a core layer 8 and an outer skin layer 9.
  • a particularly inexpensive elastomer material for example also a recycled material, can be used for the core layer 8, which does indeed meet the mechanical requirements for a sealing bellows, but not the chemical or
  • Such a hollow body with a multilayer wall can be produced, for example, by coextrusion of two different polymer or elastomer materials and subsequent cutting to length.
  • the hollow body can then be inserted into a negative mold having the shape of the sealing bellows and the shape of the sealing bellows can be obtained by blow molding or internal pressure.
  • Fig. 4 also shows a substantially cylindrical hollow body in a semi-schematic longitudinal section.
  • the hollow body according to FIG. 4 has a three-layer wall structure over most of its axial length.
  • An inner skin layer 1, a core layer 8 and an outer skin layer 9 can be seen.
  • the three wall layers 7, 8, 9 form the corresponding layers of the wall of the sealing bellows.
  • the inner skin layer 7 extends only over part of the length of the hollow body or the sealing bellows produced therefrom.
  • the area designated by reference number 10 in FIG. 4 and not having an inner skin layer 7 on the finished sealing bellows corresponds, for example, to the area which comes into contact with the joint housing of a ball and socket joint (see reference number 1 in FIGS. 1 and 2).
  • Sealing bellows and the ball neck at 11 still allow a sliding relative movement between the surfaces of the ball neck and sealing bellows. This is the only way to ensure the rotational mobility of the ball in the joint housing, which is necessary for the ball joint to move freely, without the sealing bellows being twisted about its longitudinal axis.
  • FIG. 4 also shows that the hollow body shown there already has a wall thickness which can be varied over its axial length.
  • This variable wall thickness on the sealing bellows produced from the hollow body according to FIG. 4 also leads to a wall thickness that varies over the axial length of the sealing bellows, or compensates for the reduction in wall thickness that occurs during blow molding due to radial expansion in such a way that the finished sealing bellows at every point with exactly that constructively provided wall thickness can be provided.
  • Wall structure optimize the numerous quality-determining factors for sealing bellows largely independently of one another. This means that bellows with optimal quality properties can be produced at low costs. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Diaphragms And Bellows (AREA)
  • Sealing Devices (AREA)

Abstract

Soufflet d'étanchéité pour joints à rotule, raccords d'arbres menants et analogues, qui se caractérise en ce que la paroi dudit soufflet comporte au moins deux couches d'élastomère ou de polymère (5, 6), ces deux couches étant constituées de matières à propriétés différentes. Selon la présente invention, cette structure à plusieurs couches, constituée de couches internes et de couches superficielles, permet l'utilisation de matières qu'il n'était jusqu'alors pas possible d'utiliser pour la fabrication de soufflets d'étanchéité. En outre, les différents facteurs déterminant la qualité tels que par exemple l'élasticité ou les propriétés de surface de soufflets d'étanchéité peuvent par conséquent être optimisés dans une très large mesure indépendamment les uns des autres. La présente invention permet donc la production de soufflets d'étanchéité présentant des propriétés qualitatives optimales, parallèlement à une réduction des coûts.
PCT/DE2003/003521 2002-10-21 2003-10-21 Soufflet multicouche WO2004038237A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03773566A EP1554501A1 (fr) 2002-10-21 2003-10-21 Soufflet multicouche

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10249073.2 2002-10-21
DE10249073A DE10249073B4 (de) 2002-10-21 2002-10-21 Mehrschichtbalg

Publications (1)

Publication Number Publication Date
WO2004038237A1 true WO2004038237A1 (fr) 2004-05-06

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PCT/DE2003/003521 WO2004038237A1 (fr) 2002-10-21 2003-10-21 Soufflet multicouche

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EP (1) EP1554501A1 (fr)
DE (1) DE10249073B4 (fr)
WO (1) WO2004038237A1 (fr)

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WO2005098249A1 (fr) * 2004-04-10 2005-10-20 Daimlerchrysler Ag Joint articule a pivot
DE102012018586A1 (de) * 2012-09-20 2014-03-20 Carl Freudenberg Kg Dichtungsbalg, Verfahren zu dessen Herstellung und Dichtungsbalg-Anordnung
US11739790B2 (en) * 2016-01-26 2023-08-29 Zf Friedrichshafen Ag Ball joint for a vehicle, in particular for an off-road vehicle

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DE102007035654A1 (de) 2007-07-27 2009-02-26 Zf Friedrichshafen Ag Gelenk- und/oder Lageranordnung
US8088015B2 (en) 2007-11-01 2012-01-03 Gkn Driveline North America, Inc. Self-repairing boot for a constant velocity joint
DE102019132692A1 (de) * 2019-12-02 2021-06-02 Carl Freudenberg Kg Balg, dessen Verwendung und Verfahren zu seiner Herstellung

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO2005098249A1 (fr) * 2004-04-10 2005-10-20 Daimlerchrysler Ag Joint articule a pivot
DE102012018586A1 (de) * 2012-09-20 2014-03-20 Carl Freudenberg Kg Dichtungsbalg, Verfahren zu dessen Herstellung und Dichtungsbalg-Anordnung
US9221225B2 (en) 2012-09-20 2015-12-29 Carl Freudenberg Kg Sealing bellows, method for the production thereof and sealing bellows arrangement
US9956733B2 (en) 2012-09-20 2018-05-01 Carl Freudenberg Kg Sealing bellows, method for the production thereof and sealing bellows arrangement
US11739790B2 (en) * 2016-01-26 2023-08-29 Zf Friedrichshafen Ag Ball joint for a vehicle, in particular for an off-road vehicle

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