DE10253474B4 - bearing arrangement - Google Patents
bearing arrangement Download PDFInfo
- Publication number
- DE10253474B4 DE10253474B4 DE10253474A DE10253474A DE10253474B4 DE 10253474 B4 DE10253474 B4 DE 10253474B4 DE 10253474 A DE10253474 A DE 10253474A DE 10253474 A DE10253474 A DE 10253474A DE 10253474 B4 DE10253474 B4 DE 10253474B4
- Authority
- DE
- Germany
- Prior art keywords
- sealing
- inner ring
- sealing lip
- bearing arrangement
- arrangement according
- 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.)
- Expired - Fee Related
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
- F16C33/7869—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
- 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
- F16C33/768—Sealings of ball or roller bearings between relatively stationary parts, i.e. static seals
-
- 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
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
-
- 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
- F16C2229/00—Setting preload
-
- 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
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
Lageranordnung
bestehend aus mindestens einem Außenring (1) und mindestens
einem Innenring (2),
wobei zwischen Außenring (1) und Innenring (2)
eine Anzahl Wälzkörper (3)
angeordnet sind,
wobei am Außenring (1) oder am Innenring
(2) eine Dichtung (4) befestigt ist, die mit mindestens einer Dichtlippe
(5) am Innenring (2) oder am Außenring
(1) oder an einem hieran angrenzenden Bauteil dichtend anliegt,
und
wobei der Bereich (B) des Außen- oder Innenrings (1, 2) oder
des hieran angrenzenden Bauteils, an dem die mindestens eine Dichtlippe
(5) dichtend anliegt, einen Radius (R) aufweist,
dadurch gekennzeichnet,
dass
mindestens eine Dichtlippe (5) durch ein in axiale Lagerrichtung
(A) wirkendes Federelement (6) gegen den Bereich (B), an dem die
Dichtlippe (5) dichtend anliegt, vorspannt wird, wobei das Federelement
(6) eine Tellerfeder oder ein ringförmiges Federblech ist, das
in Umfangsrichtung gewellt ausgebildet ist.Bearing arrangement consisting of at least one outer ring (1) and at least one inner ring (2),
wherein between the outer ring (1) and inner ring (2) a number of rolling elements (3) are arranged,
wherein on the outer ring (1) or on the inner ring (2) a seal (4) is fastened, which bears sealingly with at least one sealing lip (5) on the inner ring (2) or on the outer ring (1) or on a component adjacent thereto, and
wherein the region (B) of the outer or inner ring (1, 2) or of the component adjacent thereto, on which the at least one sealing lip (5) sealingly bears, has a radius (R),
characterized in that
at least one sealing lip (5) by a in the axial bearing direction (A) acting spring element (6) against the region (B) to which the sealing lip (5) sealingly, is biased, wherein the spring element (6) a plate spring or an annular Spring plate is formed, which is corrugated in the circumferential direction.
Description
Die Erfindung betrifft eine Lageranordnung, bestehend aus mindestens einem Außenring und mindestens einem Innenring, wobei zwischen Außenring und Innenring eine Anzahl Wälzkörper angeordnet sind, wobei am Außenring oder am Innenring eine Dichtung befestigt ist, die mit mindestens einer Dichtlippe am Innenring oder am Außenring oder an einem hieran angrenzenden Bauteil dichtend anliegt, und wobei der Bereich des Außen- oder Innenrings oder des hieran angrenzenden Bauteils, an dem die mindestens eine Dichtlippe dichtend anliegt, einen Radius aufweist.The The invention relates to a bearing arrangement consisting of at least an outer ring and at least one inner ring, wherein between the outer ring and inner ring arranged a number of rolling elements are, being on the outer ring or a seal is attached to the inner ring with at least a sealing lip on the inner ring or on the outer ring or on a thereto adjacent component sealingly abuts, and wherein the area of the Outer or inner ring or the adjoining component, on which the at least one sealing lip sealingly, has a radius.
Eine
Dichtungsanordnung der gattungsgemäßen Art ist aus der
Auch
aus der
Die
Ausgestaltung eines Dichtrings geht aus der
Zur Anlage der Dichtlippen an einem der beiden Lagerringe sind die Dichtlippen elastisch vorgespannt, wobei die Vorspannkraft radial zur Drehachse des Lagers wirkt. Toleranzen und Verschleiß der Dichtlippe werden durch die radiale Federwirkung ausgeglichen.to The sealing lips on one of the two bearing rings are the sealing lips elastically biased, wherein the biasing force is radial to the axis of rotation of the camp acts. Tolerances and wear of the sealing lip are through balanced the radial spring action.
Bei derartigen Dichtungsanordnungen hat es sich als nachteilig erwiesen, dass die radial wirkende Anlaufkraft der Dichtlippe ein Wandern und infolgedessen ein Abrutschen der Dichtung aus dem Radius zur Folge hat. Hierdurch kann die Dichtwirkung im Laufe der Zeit abnehmen und schlussendlich gänzlich entfallen.at Such sealing arrangements, it has proved to be disadvantageous that the radially acting starting force of the sealing lip is a hiking and as a result slipping of the seal from the radius to Episode has. As a result, the sealing effect can decrease over time and finally completely omitted.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Lageranordnung mit integrierter Dichtung der gattungsgemäßen Art derart weiterzubilden, dass ein Wandern bzw. Abrutschen der im Radius anlaufenden Dichtlippen verhindert wird, so dass die Dichtwirkung langfristig aufrechterhalten werden kann.Of the Invention is therefore the object of a bearing assembly further develop with integrated seal of the generic type such that a wandering or slipping of the starting in the radius sealing lips is prevented, so that the sealing effect is maintained long term can be.
Die Lösung dieser Aufgabe ist durch die Erfindung dadurch gekennzeichnet, dass zumindest eine Dichtlippe durch ein in axiale Lagerrichtung wirkendes Federelement gegen den Bereich, an dem die Dicht lippe dichtend anliegt, vorgespannt wird, wobei das Federelement eine Tellerfeder oder ein ringförmiges Federblech ist, das in Umfangsrichtung gewellt ausgebildet ist. Im Unterschied zum Stand der Technik kommt also eine Lageranordnung mit einer Dichtung zum Einsatz, die sich dadurch auszeichnet, dass die Dichtlippe in axiale Lagerrichtung vorgespannt wird.The solution this object is characterized by the invention in that at least one sealing lip acting through an axial bearing direction Spring element against the region against which the sealing lip sealingly abuts, is biased, wherein the spring element is a plate spring or a annular Spring plate is formed, which is corrugated in the circumferential direction. In contrast to the prior art so comes a bearing assembly used with a seal, which is characterized in that the sealing lip is biased in the axial bearing direction.
Mit Vorteil kann vorgesehen werden, dass der Innenring und das diesen tragende Bauteil einstückig miteinander ausgebildet sind. Bevorzugt ist die Dichtung in einer Ausdrehung am Außen- oder Innenring befestigt. Weiterhin kann vorgesehen werden, dass die mindestens eine Dichtlippe an einem Stützblech befestigt ist.With Advantage can be provided that the inner ring and this supporting component in one piece are formed with each other. Preferably, the seal is in one Outward rotation or inner ring attached. Furthermore, it can be provided that the at least one sealing lip is attached to a support plate.
Hinsichtlich der Ausgestaltung des Dichtelements kann vorgesehen werden, dass die mindestens eine Dichtlippe eine verschleißarme Beschichtung, vorzugsweise aus PTFE, aufweist. Alternativ dazu kann auch vorgesehen sein, dass die mindestens eine Dichtlippe aus PTFE besteht.Regarding the configuration of the sealing element can be provided that the at least one sealing lip a low-wear coating, preferably made of PTFE. Alternatively, it can also be provided that the at least one sealing lip consists of PTFE.
Eine weitere vorteilhafte Ausgestaltung sieht vor, dass der Spalt zwischen dem Stützblech und dem Außenring oder dem Innenring durch einen an der Dichtlippe angeformten Dichtungsfortsatz statisch abgedichtet ist. Bei dieser Ausgestaltung hat es sich als vorteilhaft erwiesen, dass der Dichtungsfortsatz an einem Stützblech ansetzt, der am Außenring und Innenring angeordnet ist. Der Dichtungsfortsatz kann dabei balgartig ausgebildet sein, wobei dessen eines Ende mit Hilfe einer Spiralfeder statisch dichtend am Stützblech anliegt. Der Dichtungsfortsatz kann auch alternativ dazu am Stützblech anvulkanisiert sein. Schließlich ist es auch möglich, dass der Dichtungsfortsatz mindestens eine Dichtlippe aufweist, die am Stützblech statisch anliegt.A Another advantageous embodiment provides that the gap between the support plate and the outer ring or the inner ring by a molded on the sealing lip sealant extension is statically sealed. In this embodiment, it has as proved advantageous that the sealing extension on a support plate attaches to the outer ring and Inner ring is arranged. The sealing process can be bellows-like be formed, wherein the one end by means of a coil spring static sealing on the support plate is applied. The gasket extension can also alternatively on the support plate be vulcanized. After all it is also possible that the sealing extension has at least one sealing lip, the on the support plate static.
Mit der vorgeschlagenen Lageranordnung wird sichergestellt, dass die Dichtwirkung der Dichtungsanordnung lange aufrechterhalten bleibt und keine Gefahr besteht, dass es zu einem Wandern oder Abrutschen der Dichtlippe im Radius kommt.With the proposed bearing arrangement ensures that the Sealing effect of the seal assembly is maintained long There is no danger of walking or slipping the sealing lip comes in radius.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:In the drawing are embodiments of Invention shown. Show it:
In
Die
Lageranordnung kommt bevorzugt bei der Lagerung eines Rades eines
Kraftfahrzeugs zum Einsatz. Damit der Zwischenraum zwischen Innenring
und Außenring,
in dem sich die Wälzkörper befinden,
zur Umgebung hin abgedichtet ist, ist eine Dichtung
Gemäß dem Erfindungskonzept
findet eine Vorspannung der Dichtlippen
In
den
In
Die
in
Bei
der Alternativlösung
gemäß
- 11
- Außenringouter ring
- 22
- Innenringinner ring
- 33
- Wälzkörperrolling elements
- 44
- Dichtungpoetry
- 55
- Dichtlippesealing lip
- 66
- Federelementspring element
- 77
- Ausdrehungrecess
- 88th
- Stützblechgusset
- 99
- Stützblechgusset
- 1010
- DichtungsfortsatzSeal extension
- 1111
- Spiralfederspiral spring
- AA
- Achsrichtungaxially
- BB
- BereichArea
- RR
- Radiusradius
- SS
- Spaltgap
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253474A DE10253474B4 (en) | 2002-11-16 | 2002-11-16 | bearing arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253474A DE10253474B4 (en) | 2002-11-16 | 2002-11-16 | bearing arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10253474A1 DE10253474A1 (en) | 2004-06-03 |
DE10253474B4 true DE10253474B4 (en) | 2006-07-20 |
Family
ID=32240103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10253474A Expired - Fee Related DE10253474B4 (en) | 2002-11-16 | 2002-11-16 | bearing arrangement |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10253474B4 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2181203A (en) * | 1938-04-18 | 1939-11-28 | Otto Bartling | Grease retainer |
DE2542080A1 (en) * | 1974-09-24 | 1976-04-01 | Skf Kugellagerfabriken Gmbh | ROLLER BEARING |
JPS5694028A (en) * | 1979-12-27 | 1981-07-30 | Ntn Toyo Bearing Co Ltd | Seal for roll bearing |
DE8219867U1 (en) * | 1982-10-07 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Bearing bush, especially for universal joints | |
FR2526896A1 (en) * | 1982-05-15 | 1983-11-18 | Skf Kugellagerfabriken Gmbh | SEALING DEVICE FOR BEARINGS |
DE9005935U1 (en) * | 1990-05-25 | 1990-07-05 | SKF GmbH, 8720 Schweinfurt | Sealing, especially for universal joint bearings |
GB2310467A (en) * | 1996-02-23 | 1997-08-27 | Nsk Ltd | Sealed double-row rolling bearing unit |
DE19637553C1 (en) * | 1996-06-05 | 1997-11-27 | Gkn Automotive Ag | Cross link fitment for universal joints with four journals |
DE19754699A1 (en) * | 1997-12-10 | 1999-06-17 | Schaeffler Waelzlager Ohg | Sealing for a bearing bush |
DE19839502C2 (en) * | 1998-08-29 | 2001-06-07 | Freudenberg Carl Fa | Sealing ring |
-
2002
- 2002-11-16 DE DE10253474A patent/DE10253474B4/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8219867U1 (en) * | 1982-10-07 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Bearing bush, especially for universal joints | |
US2181203A (en) * | 1938-04-18 | 1939-11-28 | Otto Bartling | Grease retainer |
DE2542080A1 (en) * | 1974-09-24 | 1976-04-01 | Skf Kugellagerfabriken Gmbh | ROLLER BEARING |
JPS5694028A (en) * | 1979-12-27 | 1981-07-30 | Ntn Toyo Bearing Co Ltd | Seal for roll bearing |
FR2526896A1 (en) * | 1982-05-15 | 1983-11-18 | Skf Kugellagerfabriken Gmbh | SEALING DEVICE FOR BEARINGS |
DE9005935U1 (en) * | 1990-05-25 | 1990-07-05 | SKF GmbH, 8720 Schweinfurt | Sealing, especially for universal joint bearings |
GB2310467A (en) * | 1996-02-23 | 1997-08-27 | Nsk Ltd | Sealed double-row rolling bearing unit |
DE19637553C1 (en) * | 1996-06-05 | 1997-11-27 | Gkn Automotive Ag | Cross link fitment for universal joints with four journals |
DE19754699A1 (en) * | 1997-12-10 | 1999-06-17 | Schaeffler Waelzlager Ohg | Sealing for a bearing bush |
DE19839502C2 (en) * | 1998-08-29 | 2001-06-07 | Freudenberg Carl Fa | Sealing ring |
Also Published As
Publication number | Publication date |
---|---|
DE10253474A1 (en) | 2004-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |