Gkn Driveline International Gmbh

Markus Deisinger

Joachim Wette

Ralf Schumacher

Ludger Wenning

Winfried Busch

Daniela Ballas

Andreas Gehrke

Thomas Schmidt

Thorsten Scholtz

Achim Pfeifer

Maik Lehmann

Wolfgang Hildebrandt

Thomas Schafferus

Lukas Hoets

Bernd Bender

Dietmar Oberste

Andreas Berndt

Olaf Wolf

Achim Schmeink

Claude Neviani

A boot can be fastened to a joint housing with a seal. The boot includes a first and a second fastening region, and a pleated region between them. The first fastening region comprises lobe regions and/or guide regions, and connecting regions and a connector seat region, which comprises at least two grooves in at least the lobe regions and/or the guide regions, starting from the connector seat region surface, said grooves being parabolic when viewed in the cross sections and having different depths inside the lobe regions and/or the guide regions.

Bellows with grooves

A rolling boot that has improved stability especially at increased rotational speeds comprises a first fastening region, a second fastening region, a transition region adjacent to the first fastening region, as well as a diaphragm region adjoining the transition region, and at least on peripheral reinforcement fin is arranged on an external side of the transition region.

Rolling boot comprising at least one reinforcement fin

A boot is provided with an improved sealing effect. The boot has a first and a second fastening region, and a pleated region between them, wherein the first fastening region comprises lobe regions and/or guide regions, and connecting regions and a connector seat region that has a connector seat region surface and an undersurface lying opposite it, wherein there is at least one inner groove in the lobe regions and/or in the guide regions, on the undersurface.

Bellows comprising at least one internal groove

A boot is provided in which the formation of an internal pressure inside the boot during assembly is prevented. The boot has a first fastening region and a first diameter and having a second fastening region with a second diameter, wherein the first diameter is smaller than the second diameter, and wherein the first fastening region comprises a binder seat region on its outer circumference, wherein at an inner circumference of the first fastening region at least one first and at least one second aerating means are arranged axially spaced from each other at the inner circumference which is formed with a flat surface, and protrude beyond said surface of the inner circumference.

Bellows having aerating means

A fastener, in particular for bellows, comprises a male end segment and a female end segment complementary to the male end segment. The fastener can be used to fasten bellows to joint housings and/or shafts, said fastener having improved closing behavior.

Fastener for bellows, having a male and a female end segment

A fastening means, in particular for a bellows, comprises a male end segment and a female end segment complementary to the male end segment. The fastening means can be used to fasten bellows to joint housings and/or shafts. The fastening means has an inner undercut region in order to provide an improved closing behavior of the fastening means.

Fastener having an inner undercut region

A rolling boot comprises a first fastening region for fastening the boot to a joint casing, a second fastening region for fastening the boot to a shaft, and a fold region between the first and the second fastening region with a first fold near to the first fastening region and a second fold near to the second fastening region. The boot further comprises, between the first fastening region and the first fold, a first transition region comprising a first flange neighboring the first fastening region with a bottom. A ratio between a first minimal diameter D, defined by the bottom of the first flange of the first transition region, and a second maximal diameter D, defined by the first fold, where both are viewed in a longitudinal section direction along the main axis, is between approximately 1:1.01 to approximately 1:1.25.

Rolling boot with transition region

A boot for joints, such as constant velocity joints, has a first attachment region and a fold region with a plurality of folds with peaks and roots and a transition area adjacent to the last fold arranged near said first attachment region. The transition area includes a connecting root between said last fold in the transition part, wherein at least part of said transition part is inclined towards said first attachment region, and wherein said transition part, in a cross-sectional view in a direction of a main axis of the boot, has a convex or an essentially planar shape.

Boot for joints, such as constant velocity joints, with a transition area

A boot for joints, such as constant velocity joints, has a first attachment region and a fold region with a plurality of folds with peaks and roots and a transition area adjacent to the last fold arranged near said first attachment region. The transition area comprises a connecting root between said last fold in the transition part, wherein at least part of said transition part is inclined towards said first attachment region.

A folding bellows arrangement, e.g., for a tripod joint unit, may comprise a joint outer part with a groove, a folding bellows with a joint collar region for attachment to said joint outer part, and an adapter ring. The joint collar region may comprise a joint binder seat region. The adapter ring may have an inner surface that is matching in a cross section to an outer contour of the joint outer part. On an inner area of the joint collar region and within the joint binder seat region of the folding bellows, at least one bead may be arranged. The bead matching a groove may be arranged on an outer area of the adapter ring. The groove of the adapter ring may correspond to at least one first sealing lip arranged on an inner area of the adapter ring, and at least one second sealing lip may be arranged on the inner area of the adapter ring. The first and second sealing lips may be arranged within the groove of the joint outer part.

Folding bellows arrangement for a tripod joint unit

An expanding bellows is disclosed for sealing an annular gap between two parts, which are connected to one another in a rotationally fixed manner and may be angled to one another, in a constant velocity joint. The expanding bellows has a first larger flange and a second smaller flange and an annular fold area, which extends between the first flange and the second flange, having annular folds implemented as outer folds, each having two annular flanks and a fold peak between two fold valleys. The expanding bellows further comprises a first area of at least two annular folds adjoining the first flange having diameters of the fold peaks and fold valleys decreasing in the direction toward the second flange and a second area having at least one annular fold adjoining the second flange having essentially uniform diameters of the fold valleys. A use of the expanding bellows is also disclosed.

Expanding bellows for sealing an annular gap

A rolling boot is proposed that has a first fastening region and a fold region with at least a first fold having a first fold peak region and a first fold flank near the first fastening region and, opposite this first fold flank, a second fold flank which is adjoined by a fold trough, wherein a transition region having a base surface is arranged between the first fastening region and fold region, and an angle a having a range from approximately 90&#xb0; to approximately 140&#xb0; is formed between the base surface and an outer side of the first fold flank, and the fold trough has a depth T which is, at most, approximately 65 percent of a height H of the first fold.

A boot is disclosed having a first attachment region which is assigned to a joint, and a second attachment region which is assigned to a shaft. The boot has a plurality of folds, including a first fold region with at least two folds with a diameter that decreases in the direction of the second attachment region and at least one revolving, separating element which is arranged in an annular fold root between two folds.

Boot

A bellows for a joint arrangement may include pleats, an axis and a joint end, a zone of the joint end being produced by blow molding and forming a receiver for a retaining ring. The receiver, in the proximity of the pleats, has a plurality of outward-pointing bulged portions that form a recess and at least one inclined receiving edge.

Bellows comprising a receiver for a retaining ring and method for producing the same

A boot comprising a fold region and an attachment region is disclosed. The attachment region comprises an outside with at least two circumferential ribs extending from a base surface towards the outside and providing for a binder seat surface.

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Siegburg, Germany

Markus Deisinger