DE2708137B1 - Sealing for the bearing body of the cross of a universal joint - Google Patents

Sealing for the bearing body of the cross of a universal joint

Info

Publication number
DE2708137B1
DE2708137B1 DE2708137A DE2708137A DE2708137B1 DE 2708137 B1 DE2708137 B1 DE 2708137B1 DE 2708137 A DE2708137 A DE 2708137A DE 2708137 A DE2708137 A DE 2708137A DE 2708137 B1 DE2708137 B1 DE 2708137B1
Authority
DE
Germany
Prior art keywords
cross
seal
sealing
leg
universal joint
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE2708137A
Other languages
German (de)
Other versions
DE2708137C2 (en
Inventor
Heinrich Welschof
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GKN Driveline Deutschland GmbH
Original Assignee
Loehr and Bromkamp GmbH
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 Loehr and Bromkamp GmbH filed Critical Loehr and Bromkamp GmbH
Priority to DE2708137A priority Critical patent/DE2708137C2/en
Priority to IT05270/77A priority patent/IT1090121B/en
Priority to GB6312/78A priority patent/GB1600797A/en
Priority to FR7805434A priority patent/FR2381951A1/en
Publication of DE2708137B1 publication Critical patent/DE2708137B1/en
Application granted granted Critical
Publication of DE2708137C2 publication Critical patent/DE2708137C2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
    • 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
    • F16C21/005—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement the external zone of a bearing with rolling members, e.g. needles, being cup-shaped, with or without a separate thrust-bearing disc or ring, e.g. for universal joints
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7873—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section
    • F16C33/7876—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section with sealing lips
    • 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
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
    • F16D3/385—Bearing cup; Bearing construction; Bearing seal; Mounting of bearing on the intermediate member
    • 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
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/40—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
    • F16D3/41—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes with ball or roller bearings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/41—Couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Description

Die Erfindung betrifft eine Abdichtung für die Lagerkörper des Kreuzes eines Kreuzgelenkes gegenüber dem Zapfen des Kreuzes, wobei die Dichtung in der Lagerbüchse angeordnet ist, der in der Lagerbüchse angeordnete Teil der Dichtung eine als Abstützfläche für die axiale Halterung der in der Lagerbüchse angeordneten Wälzkörper ausgebildete Fläche sowie einen Schenkel aufweist, der eine einzige radial nach innen gerichtete, am Zapfenumfang anliegende Dichtlippe hat, und an der Dichtung eine Fläche zur Abstützung an einer etwa rechtwinklig zur Zapfenachse verlaufenden Fläche des Zapfenkreuzkörpers vorgesehen ist.The invention relates to a seal for the bearing body of the cross of a universal joint the pin of the cross, the seal being arranged in the bearing bush, which is in the bearing bush arranged part of the seal as a support surface for the axial support of the in the bearing bush arranged rolling body has formed surface and a leg which has a single radially has inwardly directed sealing lip resting on the pin circumference, and a surface on the seal for Support is provided on a surface of the journal cross body which extends approximately at right angles to the journal axis is.

Es ist in der DT-AS 25 36 113 ein Vorschlag gezeigt, bei dem von Nachteil ist, daß dieser nicht für enge Einbauverhältnisse verwendet werden kann. Bei Ein- *> satzfällen, bei denen der Schulterdurchmesser kleiner als der Innendurchmesser der Bohrungsstufe der Lagerbüchse ist, kann eine Abstützung über den dafür vorgesehenen Schenkel nicht erfolgen, so daß entweder die Dichtung bei einem unzulässig hohen Schmierdruck herausgedrückt würde oder die Dichtwirkung verloren geht, da Schmutz und Staub von außen eindringen kann, denn es läßt sich keine dafür vorgesehene Vorkammer bilden.A proposal is shown in DT-AS 25 36 113, which has the disadvantage that it cannot be used for tight installation conditions. With a *> cases in which the shoulder diameter is smaller than the inner diameter of the drilling step of the Bearing bush is, a support on the leg provided for this purpose cannot take place, so that either the seal would be pushed out at an impermissibly high lubricating pressure or the sealing effect would be lost because dirt and dust can penetrate from the outside, because there is no pre-chamber form.

Davon ausgehend, ist es Aufgabe der Erfindung, eine Μ Labyrinthdichtung zu schaffen, die auch bei Verwendung von im Durchmesser kleineren als die Innendurchmesser der Lagerbüchsen aufweisenden Schulterradien der Zapfen eine Abdichtung dem Kreuz gegenüber gewährleisten, wobei die Dichtung so ausgebildet M werden soll, daß keine besonderen Maßnahmen zur Halterung an der Büchse benötigt werden.Assuming it is an object of the invention to provide a Μ labyrinth seal having even when using smaller in diameter than the inner diameter of the bearing bushes shoulder radii of the pin sealing the cross relative to ensure the seal is to be M formed so that no special measures for holding it on the bushing are required.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der die Dichtlippe tragende Schenkel eine Verlängerung in Richtung auf das Zapfenkreuz aufweist, *° mit welcher dieser sich auf der etwa rechtwinklig zur Zapfenachse verlaufenden Fläche des Zapfenkreuzes abstütztThis object is achieved according to the invention in that the leg carrying the sealing lip has a Has extension in the direction of the cross, * ° with which this is on the approximately at right angles to Supports the journal axis extending surface of the journal cross

Vorteilhaft ist daß die Labyrinthdichtung bei tiefgezogenen Büchsen anwendbar ist bei denen außen M keine Stufe angebracht ist Die Dichtung ist vor äußeren Einflüssen, selbst auch bei der Montage, geschützt Der an der Bohrung anliegende Teil der Dichtung dient zur Halterung der Dichtung in der Büchse. Dagegen trägt der innenliegende Schenkel die eigentliche Dichtlippe, und die Verlängerung dieses Schenkels dient zur Abstützung der Dichtung und bildet gleichzeitig eine Vorkammer, die groben Schmutz von außen abhält Die Dichtlippe wird durch das zwischen ihr und der Vorkammer vorhandene Schmiermittel dauernd geschmiert wodurch ein Trockenlauf verhindert wird Des weiteren schützt das Schmiermittelpolster die Lagerung vor eindringender Feuchtigkeit. Außerdem wird durch die Dichtung eine Abstützung der Wälzkörper erreicht Da diese Abstützung von dem innenliegenden Schenkel übernommen wird, ist diese Dichtung auch dort einsetzbar, wo der Durchmesser des Schulterradius des Zapfens erheblich kleiner ist als der Innendurchmesser der Lagerbüchse. Blechteile für eine Halterung sind nicht erforderlich.It is advantageous that the labyrinth seal can be used with deep-drawn bushings in which no step is attached outside M The seal is protected from external influences, even during assembly. The part of the seal adjacent to the bore serves to hold the seal in the bush. In contrast, the inner leg carries the actual sealing lip, and the extension of this leg serves to support the seal and at the same time forms an antechamber that keeps coarse dirt away from the outside.The sealing lip is permanently lubricated by the lubricant between it and the antechamber, which prevents dry running Furthermore, the lubricant cushion protects the storage from penetrating moisture. In addition, the seal provides support for the rolling elements. Since this support is taken over by the inner leg, this seal can also be used where the diameter of the shoulder radius of the pin is considerably smaller than the inner diameter of the bearing bush. Sheet metal parts for a bracket are not required.

Die Form dieser Dichtung ergibt den Vorteil, daß die Herstellung in einem einfachen geteilten Werkzeug (Spritzgußform) vonstatten gehen kann, so daß verschleißfeste Werkstoffe (Polyäthylen, Polyamid, Polyurethan) verwendet werden können.The shape of this seal has the advantage that the Production in a simple split tool (injection mold) can take place so that Wear-resistant materials (polyethylene, polyamide, polyurethane) can be used.

Bevorzugte Ausführungsbeispiele nach der Erfindung sind in den Zeichnungen schematisch dargestellt Es zeigtPreferred embodiments according to the invention are shown schematically in the drawings shows

F i g. 1 eine Gelenkwelle, deren Ende Kreuzgelenke tragen,F i g. 1 a cardan shaft, the ends of which have universal joints,

F i g. 2 ein Kreuzgelenk, geschnitten in der Ebene der Zapfen,F i g. 2 a universal joint, cut in the plane of the Cones,

F i g. 3 einen Schnitt A -A, gemäß F i g. 1,F i g. 3 shows a section A -A, according to FIG. 1,

F i g. 4 einen Lagerzapfen mit Nadellagerung, Lagerbüchse und Dichtung, axial geschnitten,F i g. 4 a bearing journal with needle bearing, bearing bush and seal, axially cut,

Fig.5 eine Dichtung im Prinzip wie in Fig.4 dargestellt, jedoch ist zur Halterung keine Bohrungsstufe notwendig,Fig.5 shows a seal in principle as in Fig.4 shown, but no drilling step is necessary for the bracket,

F i g. 6 eine weitere Ausführungsform einer Dichtung, die im wesentlichen L-förmig ausgebildet istF i g. 6 shows a further embodiment of a seal which is essentially L-shaped

Die in F i g. 1 gezeigte Gelenkwelle umfaßt zwei koaxiale Gelenkabschnitte 1 und 2, die an ihren äußeren Enden Kreuzgelenke 3 und 4 tragen. Der Gelenkwellenabschnitt 1 ist an seinem inneren Ende als Vollwelle 5 und der Gelenkwellenabschnitt 2 als Hohlwelle 6 ausgebildet Über eine Keilwellenverzahnung 7 sind Vollwelle 5 und Hohlwelle 6 miteinander undrehbar, jedoch axial verschiebbar verbunden.The in F i g. 1 shown cardan shaft comprises two coaxial joint sections 1 and 2, which at their outer End of universal joints 3 and 4 wear. The drive shaft section 1 is a solid shaft 5 at its inner end and the articulated shaft section 2 are designed as a hollow shaft 6 via a spline 7 Solid shaft 5 and hollow shaft 6 are non-rotatably connected to one another, but are axially displaceably connected.

In F i g. 2 und 3 ist ein Kreuzgelenk dargestellt, bei dem der Körper des Zapfenkreuzes mit 8, die auf dessen vier Zapfen 9 und 10 angeordneten Lagerkörper mit 11 und 12 und die zugeordneten Gelenkgabeln mit 13 und 14 bezeichnet sind. Das Zapfenkreuz 8 ist ein Schmiedeteil.In Fig. 2 and 3 a universal joint is shown at that of the body of the journal cross with 8, the bearing body arranged on its four journals 9 and 10 with 11 and 12 and the associated joint forks are denoted by 13 and 14. The cross member 8 is a Forged part.

In den Bohrungen der Gelenkgabeln 13 und 14 sind die Lagerkörper 11,12 angeordnet. Durch die Zapfen 9, 10 des Zapfenkreuzes 8 ist eine Bohrung 17 geführt in die ein Hohlraum 18 hineinreicht Dieser Hohlraum 18 ist durch einen Schmiernippel 19 verschlossen. Beim Abschmieren kann das überschüssige Fett an dem Dichtring 20 vorbei ins Freie gelangen; von außen kann jedoch kein Schmutz oder Wasser in den Lagerraum eindringen.The bearing bodies 11, 12 are arranged in the bores of the joint forks 13 and 14. Through the pin 9, A bore 17 is guided 10 of the cross member 8, into which a cavity 18 extends. This cavity 18 is closed by a grease nipple 19. When lubricating the excess grease on the Sealing ring 20 get past into the open; From the outside, however, no dirt or water can get into the storage room penetration.

Der in Fig.4 gezeigte Dichtring 20 besteht im wesentlichen aus dem in der Bohrungsstufe 16 des Lagerkörpers U, 12 anliegenden Schenkel 21, dem Schenkel 23, an dessen Ende eine Dichtlippe 24 angeordnet ist und dem die beiden Schenkel 21, 23 verbindenden Steg 25, welcher eine Stirnfläche 26 besitzt an der sich die Wälzkörper 27 abstützen. Der Schenkel 23 teilt mit seiner Dichtlippe 24 denThe sealing ring 20 shown in Figure 4 consists in essentially from the leg 21 resting in the bore step 16 of the bearing body U, 12, the Leg 23, at the end of which a sealing lip 24 is arranged and to which the two legs 21, 23 connecting web 25, which has an end face 26 on which the rolling elements 27 are supported. Of the Leg 23 shares with its sealing lip 24 the

Lagerraum in zwei Schmierstoffkammern 28,29. Durch den Schmiermittelvorrat in diesen beiden Kammern wird ein Trockenlaufen der Dichtlippe verhindert, da sie ständig von Schmierstoffen umgeben ist. Von außen eingedrungenes Wasser oder Schmutz sammelt sich in der Vorkammer 29 und gelangt somit nicht in den Lagerraum 28. Der Dichtring 20 wird durch einfaches Eindrücken in die Bohrungsstufe 16 des Lagerkörpers 11 oder 12 befestigt; dadurch ist der Dichtring 20 während des Transportes oder der Montage vor äußeren Einflüssen geschützt. Beim Abschmiervorgang wird der Schmierstoff, welcher an den Wälzkörpern 27 vorbei in die Vorkammer 28 gelangt, an der Dichtlippe 24 vorbei in die Kammer 29 gedrückt, und von hier aus kann das überschüssige Schmiermittel durch die Ausnehmungen 22 der Verlängerung 30 des Schenkels 23 ins Freie gelangen. Nach Passieren des Schmierstoffes federt die Dichtlippe 24 zurück. Die Ausnehmungen 22 sind über dem Umfang des Schenkels 23 verteilt.
In F i g. 5 ist eine weitere Ausführung des Dichtringes 20 gezeigt, welche im Prinzip wie in F i g. 4 ist, jedoch mit dem Unterschied, daß der Schenkel 21 anstatt in einer Bohrungsstufe direkt in der Wandung 31 der Lagerbuchse U, 12 eingepreßt ist Diese Anwendungsmöglichkeit ist hauptsächlich bei tiefgezogenen Lager- Storage space in two lubricant chambers 28, 29. The lubricant supply in these two chambers prevents the sealing lip from running dry, as it is constantly surrounded by lubricants. Water or dirt that has penetrated from the outside collects in the antechamber 29 and thus does not get into the storage space 28. The sealing ring 20 is fastened by simply pressing it into the bore step 16 of the bearing body 11 or 12; as a result, the sealing ring 20 is protected from external influences during transport or assembly. During the lubrication process, the lubricant that passes the rolling elements 27 into the prechamber 28 is pressed past the sealing lip 24 into the chamber 29, and from here the excess lubricant can escape through the recesses 22 of the extension 30 of the leg 23 . After the lubricant has passed through, the sealing lip 24 springs back. The recesses 22 are distributed over the circumference of the leg 23.
In Fig. 5 shows a further embodiment of the sealing ring 20 which, in principle, is as shown in FIG. 4, but with the difference that the leg 21 is pressed directly into the wall 31 of the bearing bush U, 12 instead of in a bore step.

to körpern vorgesehen.intended to bodies.

Darüber hinaus ist eine Ausführung in F i g. 6 dargestellt, die einen Dichtring 20 aufweist, der ebenfalls wie in F i g. 4 in einer Bohrungsstufe 16 eingepreßt ist. Der Dichtring 20 besteht nur aus dem Schenkel 23 und dem in der Breite verstärkten Steg 25. Die Dichtlippe 24 entspricht den vorher genannten Ausführungsformen.In addition, an embodiment in FIG. 6 shown, which has a sealing ring 20, which is also as in Fig. 4 is pressed into a bore step 16. The sealing ring 20 consists only of the leg 23 and the width-reinforced web 25. The sealing lip 24 corresponds to the previously mentioned embodiments.

Hierzu 6 Blatt ZeichnungenIn addition 6 sheets of drawings

Claims (1)

Patentanspruch:Claim: Abdichtung für die Lagerkörper des Kreuzes eines Kreuzgelenkes gegenüber dem Zapfen des Kreuzes, wobei die Dichtung in der Lagerbüchse angeordnet ist, der in der Lagerbüchse angeordnete Teil der Dichtung eine als Abstützfläche für die axiale Halterung der in der Lagerbüchse angeordneten Wälzkörper ausgebildete Fläche sowie einen Schenkel aufweist, der eine einzige radial nach innen gerichtete, am Zapfenumfang anliegende Dichtlippe hat, und an der Dichtung eine Fläche zur Abstützung an einer etwa rechtwinklig zur Zapfenachse verlaufenden Fläche des Zapfenkreuzkörpers vorgesehen ist, dadurch gekennzeichnet, daß der die Dichtlippe (24) tragende Schenkel (23) eine Verlängerung (30) in Richtung auf das Zapfenkreuz (8) aufweist, mit welcher dieser sich auf der etwa rechtwinklig zur Zapfenachse (15) verlaufenden Fläche des Zapfenkreuzes abstütztSealing for the bearing body of the cross of a universal joint against the pin of the Cross, wherein the seal is arranged in the bearing bush, the one arranged in the bearing bush Part of the seal as a support surface for the axial support of the arranged in the bearing bush Rolling body formed surface and a leg which has a single radially inward has directed sealing lip resting on the circumference of the pin, and a surface on the seal for support provided on a surface of the cross member body which extends approximately at right angles to the pin axis is, characterized in that the leg (23) carrying the sealing lip (24) is a Has extension (30) in the direction of the cross member (8), with which this is on the approximately at right angles to the journal axis (15) extending surface of the journal cross is supported
DE2708137A 1977-02-25 1977-02-25 Sealing for the bearing body of the cross of a universal joint Expired DE2708137C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2708137A DE2708137C2 (en) 1977-02-25 1977-02-25 Sealing for the bearing body of the cross of a universal joint
IT05270/77A IT1090121B (en) 1977-02-25 1977-12-30 SEAL FOR THE BUSHINGS OF THE CRUISE OF A CARDANIC JOINT
GB6312/78A GB1600797A (en) 1977-02-25 1978-02-17 Universal joint sealing elements
FR7805434A FR2381951A1 (en) 1977-02-25 1978-02-24 SEALING SEAL FOR THE BEARING CAGE OF THE CROSS-JOINT OF A CROSS-JOINT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2708137A DE2708137C2 (en) 1977-02-25 1977-02-25 Sealing for the bearing body of the cross of a universal joint

Publications (2)

Publication Number Publication Date
DE2708137B1 true DE2708137B1 (en) 1978-06-08
DE2708137C2 DE2708137C2 (en) 1983-11-17

Family

ID=6002126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2708137A Expired DE2708137C2 (en) 1977-02-25 1977-02-25 Sealing for the bearing body of the cross of a universal joint

Country Status (4)

Country Link
DE (1) DE2708137C2 (en)
FR (1) FR2381951A1 (en)
GB (1) GB1600797A (en)
IT (1) IT1090121B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020364A4 (en) * 1978-12-26 1980-12-12 Towmotor Corp Seal and seal assembly.
US4317340A (en) * 1978-11-10 1982-03-02 Uni-Cardan Aktiengesellschaft Lubricating seal for universal joint
USRE31058E (en) * 1978-12-26 1982-10-19 Towmotor Corporation Seal and seal assembly
DE3639315C1 (en) * 1986-11-17 1988-04-14 Gelenkwellenbau Gmbh Device for sealing a roller bearing, in particular bearing bushes of a universal joint
FR2631087A1 (en) * 1988-05-03 1989-11-10 Skf Gmbh SEALING MOUNTING FOR BEARINGS, PARTICULARLY FOR CARDAN JOINT BEARINGS
EP0493735A1 (en) * 1990-12-22 1992-07-08 ZF FRIEDRICHSHAFEN Aktiengesellschaft Sealing arrangement of a universal joint bearing
DE4234614A1 (en) * 1992-10-14 1994-05-11 Walterscheid Gmbh Gkn Seal for universal joint cross pin - has fixture with bore against pin and channel running along bore, open to fixture surfaces and has seal opening and closing to lubrication system
WO1997021936A1 (en) * 1995-12-11 1997-06-19 Avon Polymer Products Limited Joint
US7758251B2 (en) * 2005-08-30 2010-07-20 Ntn Corporation Drawn cup needle roller bearing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385789A (en) * 1980-03-19 1983-05-31 The Torrington Company Limited Sealed roller bearings
JPS58214017A (en) * 1982-05-06 1983-12-13 エス・カ−・エフ・ク−ゲルラ−ゲルフアブリケン・ゲ−エムベ−ハ− Auxiliary seal for bearing bush
GB8821868D0 (en) * 1988-09-03 1988-10-19 Brd Co Ltd Hookes universal joints

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021211B (en) * 1955-09-26 1957-12-19 Schaeffler Ohg Industriewerk Universal joint bearing
US3266269A (en) * 1962-10-25 1966-08-16 Borg Warner Sealing element
DE2536113B1 (en) * 1975-08-13 1976-10-21 Loehr & Bromkamp Gmbh Sealing for the bearing body of the cross of a universal joint
DE2556769B1 (en) * 1975-12-17 1976-12-23 Loehr & Bromkamp Gmbh SEAL FOR SEALING A UNIVERSAL JOINT

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317340A (en) * 1978-11-10 1982-03-02 Uni-Cardan Aktiengesellschaft Lubricating seal for universal joint
EP0020364A4 (en) * 1978-12-26 1980-12-12 Towmotor Corp Seal and seal assembly.
EP0020364A1 (en) * 1978-12-26 1981-01-07 Towmotor Corp Seal and seal assembly.
USRE31058E (en) * 1978-12-26 1982-10-19 Towmotor Corporation Seal and seal assembly
DE3639315C1 (en) * 1986-11-17 1988-04-14 Gelenkwellenbau Gmbh Device for sealing a roller bearing, in particular bearing bushes of a universal joint
FR2631087A1 (en) * 1988-05-03 1989-11-10 Skf Gmbh SEALING MOUNTING FOR BEARINGS, PARTICULARLY FOR CARDAN JOINT BEARINGS
EP0493735A1 (en) * 1990-12-22 1992-07-08 ZF FRIEDRICHSHAFEN Aktiengesellschaft Sealing arrangement of a universal joint bearing
DE4234614A1 (en) * 1992-10-14 1994-05-11 Walterscheid Gmbh Gkn Seal for universal joint cross pin - has fixture with bore against pin and channel running along bore, open to fixture surfaces and has seal opening and closing to lubrication system
WO1997021936A1 (en) * 1995-12-11 1997-06-19 Avon Polymer Products Limited Joint
US7758251B2 (en) * 2005-08-30 2010-07-20 Ntn Corporation Drawn cup needle roller bearing

Also Published As

Publication number Publication date
FR2381951A1 (en) 1978-09-22
IT1090121B (en) 1985-06-18
DE2708137C2 (en) 1983-11-17
GB1600797A (en) 1981-10-21
FR2381951B1 (en) 1983-04-01

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