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WO2001031211A1 - Tolerance ring of a radial bearing - Google Patents

Tolerance ring of a radial bearing Download PDF

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Publication number
WO2001031211A1
WO2001031211A1 PCT/EP2000/006441 EP0006441W WO0131211A1 WO 2001031211 A1 WO2001031211 A1 WO 2001031211A1 EP 0006441 W EP0006441 W EP 0006441W WO 0131211 A1 WO0131211 A1 WO 0131211A1
Authority
WO
WIPO (PCT)
Prior art keywords
tolerance ring
bearing
ring
retaining lug
tolerance
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.)
Ceased
Application number
PCT/EP2000/006441
Other languages
German (de)
French (fr)
Inventor
Ulrike Weisskopf
Uwe Wunderlich
Rainer Lutz
Rolf Fleischhauer
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.)
IHO Holding GmbH and Co KG
INA Waelzlager Schaeffler OHG
Original Assignee
INA Schaeffler KG
INA Waelzlager Schaeffler OHG
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 INA Schaeffler KG, INA Waelzlager Schaeffler OHG filed Critical INA Schaeffler KG
Publication of WO2001031211A1 publication Critical patent/WO2001031211A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F16C19/166Four-point-contact ball bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06Ball or roller bearings
    • F16C25/08Ball or roller bearings self-adjusting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07Fixing them on the shaft or housing with interposition of an element
    • F16C35/077Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
    • F16C33/588Races of sheet metal

Definitions

  • the invention relates to a tolerance ring made of a polymeric material, which is arranged bridging a radial distance between a bearing outer ring of a radial bearing and a receiving bore of a housing, the tolerance ring having means for preventing its axial displacement, which positively engage in associated recesses in the housing.
  • the invention also relates to a further tolerance ring made of a polymeric material, which is arranged between a bearing inner ring of a radial bearing and a seat surface of a shaft.
  • Such tolerance rings have u. a. perform the following tasks:
  • Such a device for the elastic fastening of bearings on shafts or housings is previously known from DE 31 46 137 C2.
  • a shaft is slidably mounted in a bush.
  • An elastic ring is vulcanized onto the casing of the sleeve, which is fastened by means of balls in an annular groove in a housing.
  • axially extending pockets are formed from a side surface of the elastic ring distributed around the circumference.
  • the object of the invention is therefore to design a generic tolerance ring with means against axial displacement in such a way that it is easy to manufacture and assemble and also ensures a secure snap-in.
  • this object is achieved according to the characterizing part of claim 1 in that at least one retaining lug which is subjected to tension is arranged, which is resiliently supported on the bearing outer ring when the tolerance ring is inserted into the bearing assembly, so that a radially outward restoring force acts on the retaining lug ,
  • the retaining lug is much less susceptible to breakage when it is pushed into the bearing unit due to its tensile stress.
  • the restoring force generated by the resilient support advantageously ensures that a controlled and thus secure snapping of the retaining lug into the associated recess in the housing is achieved. This secure snapping can also be recognized acoustically by a distinctive sound.
  • the control of the restoring force by partially supporting the retaining lug on the component to be fixed can now be carried out in different ways.
  • the holding lug has a triangular configuration in longitudinal section and a lip is formed as an elastic support element at its end spaced apart in the circumferential direction, the holding lug being formed on the end of an axial part facing the insertion direction and by two gaps spaced apart in the circumferential direction and extending in the axial direction, and one gap extending in the circumferential direction.
  • the axially extending part of the tolerance ring is provided with recesses in the circumferential direction following the retaining lugs. This change of elevations and recesses ensures that the tolerance ring can be pressed into the mounting hole of the housing without problems due to material displacements.
  • a radially extending flange is arranged at the end of the axial part facing away from the retaining lug and is provided with an exemption in the region of the retaining lug.
  • the retaining lug on the axially extending part is to be arranged offset in the radial direction to the outside when viewed in plan view. This ensures a particularly simple demolding of the retaining lug when manufactured by injection molding.
  • the tolerance ring should be arranged in a steering bearing designed as a four-point ball bearing.
  • the tolerance ring is to be arranged between a bearing ring of a radial bearing and a seat surface of a shaft, wherein according to the invention at least one retaining lug which is subject to tension is arranged, which is located on the seat surface when the tolerance ring is inserted into the bearing assembly the shaft resiliently supported, so that a radially outwardly directed on the retaining lug Restoring force acts.
  • Figure 1 is a perspective view of a tolerance ring according to the invention.
  • Figure 2 shows a cross section through a bearing arrangement according to the
  • FIG 3 shows a partial longitudinal section through a bearing arrangement with a tolerance ring according to the invention.
  • the tolerance ring 1 shown in Figures 1 to 3 is made as an injection molded part from a polymeric material and consists of the axial part 2, on which the radially extending flange 3 is formed on one side.
  • a bearing outer ring 4 is indicated, which bears against the holding projection 5 in the axial direction.
  • the direction of insertion of the tolerance ring 1 in a housing, not shown, is shown by the arrow.
  • the axial part 2 of the tolerance ring 1 is provided with two opposite retaining lugs 6, only one of which is visible and which are triangular in shape and each have an integrally formed lip 7 as an elastic support element at their two ends spaced apart in the circumferential direction ,
  • the retaining lug 6 is released by two gaps 8 spaced apart in the circumferential direction and running in the axial direction and by the gap 9 running in the circumferential direction.
  • the axial part 2 of the tolerance ring 1 is provided on both sides in the circumferential direction following the retaining lugs with axially extending recesses 10 which are separated from one another by likewise axially extending elevations 11.
  • the retaining lugs 6 are integrally formed on the axially extending part 2 offset in the radial direction to the outside.
  • the radially extending flange 3 is provided with an exemption 12 in the region of the holding lugs 6.
  • FIG. 2 shows in particular, the retaining lug 6 is supported on the bearing outer ring 4 with its lips 7 formed on both sides in the circumferential direction.
  • Tolerance ring axially extending part radial flange

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)

Abstract

The invention relates to a tolerance ring (1) which consists of a polymeric material and is arranged between a bearing outer ring (4) of a radial bearing and a location hole of a housing in such a way that said ring bridges a radial gap. The tolerance ring (1) is provided with means which prevent said ring from being axially displaced. The means engage with corresponding recesses of the housing in a positive fit. According to the invention, the tolerance ring (1) is provided with at least one fixing lug (6) that is subjected to tensile stress and elastically rests on the bearing outer ring (4) when the tolerance ring is pushed in a constructional unit of the bearing, in such a way that a restoring force which is radially directed towards the outside acts upon the fixing lug (6). Said force guarantees secure latching.

Description

TOLERANZRING EINES RADIALLAGERS TOLERANCE RING OF A RADIAL BEARING

Anwendungsgebiet der ErfindungField of application of the invention

Die- Erfindung betrifft einen Toleranzring aus einem polymeren Werkstoff, der einen radialen Abstand überbrückend zwischen einem Lageraußenring eines Radiallagers und einer Aufnahmebohrung eines Gehäuses angeordnet ist, wobei der Toleranzring Mittel zur Verhinderung seiner axialen Verschiebung aufweist, die formschlüssig in zugehörige Ausnehmungen des Gehäuses eingreifen. Die Erfindung betrifft außerdem einen weiteren Toleranzring aus einem polymeren Werkstoff, der zwischen einem Lagerinnenring eines Radiallagers und einer Sitzfläche einer Welle angeordnet ist.The invention relates to a tolerance ring made of a polymeric material, which is arranged bridging a radial distance between a bearing outer ring of a radial bearing and a receiving bore of a housing, the tolerance ring having means for preventing its axial displacement, which positively engage in associated recesses in the housing. The invention also relates to a further tolerance ring made of a polymeric material, which is arranged between a bearing inner ring of a radial bearing and a seat surface of a shaft.

Hintergrund der ErfindungBackground of the Invention

Derartige Toleranzringe haben u. a. folgende Aufgaben zu erfüllen:Such tolerance rings have u. a. perform the following tasks:

- Ausgleich von Abständen zwischen Lageraußenring und Gehäuse bzw. zwischen Welle und Lagerinnenring;- Compensation of distances between the bearing outer ring and housing or between the shaft and bearing inner ring;

- Kompensation von fertigungsbedingten Maßabweichungen im Sitz des Lagerringes im Gehäuse bzw. im Sitz des Innenringes auf der Welle; - Dämpfen von Schwingungen und Stoßbelastungen.- Compensation of manufacturing-related dimensional deviations in the seat of the bearing ring in the housing or in the seat of the inner ring on the shaft; - damping vibrations and shock loads.

Eine solche Einrichtung zur elastischen Befestigung von Lagern auf Wellen oder Gehäusen ist aus der DE 31 46 137 C2 vorbekannt. In dem dort beschrieben Beispiel ist eine Welle in einer Büchse gleitgelagert. Auf dem Mantel der Büchse ist ein elastischer Ring aufvulkanisiert, der mittels Kugeln in einer ringförmigen Rille eines Gehäuses befestigt ist. Dazu sind von einer Seitenfläche des elastischen Ringes am Umfang verteilt axial verlaufende Taschen eingeformt. Beim Einbau wird die Buchse mit dem elastischen Ring zunächst ohne Kugeln in die Bohrung des Gehäuses eingeschoben. Nach dem Einschieben der Buchse werden in die Taschen Kugeln eingepreßt, die an den betreffenden Stellen eine äußere Umfangsschicht des elastischen Ringes in die Rille des Gehäuses pressen.Such a device for the elastic fastening of bearings on shafts or housings is previously known from DE 31 46 137 C2. In the example described there, a shaft is slidably mounted in a bush. An elastic ring is vulcanized onto the casing of the sleeve, which is fastened by means of balls in an annular groove in a housing. For this purpose, axially extending pockets are formed from a side surface of the elastic ring distributed around the circumference. When installing, the socket with the elastic ring first inserted into the housing bore without balls. After inserting the bushing balls are pressed into the pockets, which press an outer peripheral layer of the elastic ring into the groove of the housing at the relevant points.

Nachteilig dabei ist, dass das Einschnappen des elastischen Ringes in die Rille des Gehäuses durch Kugeln ausgelöst wird, die zusätzlich gefertigt und gehandhabt werden müssen. Eine solche Lagerung ist daher in der Montage aufwändig und damit teuer. Außerdem ist ein kontrolliertes und sicheres Einschnappen nicht gegeben, da der elastische Ring durch die Kugeln aufgeweitet werden muss.The disadvantage here is that the snap-in of the elastic ring into the groove of the housing is triggered by balls which have to be additionally manufactured and handled. Such storage is therefore complex in assembly and therefore expensive. In addition, there is no controlled and secure snap-in, since the elastic ring has to be expanded by the balls.

Zusammenfassung der ErfindungSummary of the invention

Aufgabe der Erfindung ist es daher, einen gattungsgemäßen Toleranzring mit Mitteln gegen Axialverschiebung derart auszubilden, dass er einfach herstellbar und montierbar ist und außerdem ein sicheres Einschnappen gewährleistet.The object of the invention is therefore to design a generic tolerance ring with means against axial displacement in such a way that it is easy to manufacture and assemble and also ensures a secure snap-in.

Erfindungsgemäß wird diese Aufgabe nach dem kennzeichnenden Teil von Anspruch 1 dadurch gelöst, dass wenigstens eine auf Zug beanspruchte Haltenase angeordnet ist, die sich beim Einschieben des Toleranzringes in die Lagerbaueinheit am Lageraußenring federnd abstützt, so dass auf die Haltenase eine radial nach außen gerichtete Rückstellkraft wirkt.According to the invention, this object is achieved according to the characterizing part of claim 1 in that at least one retaining lug which is subjected to tension is arranged, which is resiliently supported on the bearing outer ring when the tolerance ring is inserted into the bearing assembly, so that a radially outward restoring force acts on the retaining lug ,

Bei der erfindungsgemäßen Lösung ist von Vorteil, dass die Haltenase beim Einschieben in die Lagerbaueinheit auf Grund ihrer Zugbeanspruchung wesentlich weniger bruchanfällig ist. Darüber hinaus sorgt die durch die federnde Abstützung erzeugte Rückstellkraft in vorteilhafter Weise dafür, dass ein kontrolliertes und damit sicheres Einschnappen der Haltenase in die zugehörige Ausnehmung des Gehäuses realisiert ist. Dieses sichere Einschnappen ist auch an einem markanten Geräusch akustisch erkennbar. Die Steuerung der Rückstell kraft durch partielle Abstützung der Haltenase am zu fixierendem Bauteil kann nun in unterschiedlicher Art und Weise erfolgen. So ist beispielsweise nach Anspruch 2 vorgesehen, dass die Haltenase im Längsschnitt gesehen eine dreieckförmige Ausbildung aufweist und an ihren in Umfangsrichtung voneinander beabstandeten Ende je eine Lippe als elastisches Stützelement angeformt ist, wobei die Haltenase an dem der Einschubrichtung zugewandten Ende eines axialen Teils angeformt ist und durch zwei in Umfangsrichtung voneinander beabstandete, in axialer Richtung verlaufende Spalte, sowie einen in Umfangsrichtung verlaufenden Spalt freigestellt ist. Nach einem weiteren Merkmal der Erfindung gemäß Anspruch 3 ist vorgesehen, dass in Umfangsrichtung im Anschluss an die Haltenasen der axial verlaufende Teil des Toleranzringes mit Ausnehmungen versehen ist. Dieser Wechsel von Erhebungen und Ausnehmungen sorgt dafür, dass sich der Toleranzring ohne Probleme durch Materialverschiebungen in die Aufnahmebohrung des Gehäuses einpressen lässt. Aus Anspruch 4 geht hervor, dass an dem der Haltenase abgewandten Ende des axialen Teils ein radial verlaufender Flansch angeordnet ist, der im Bereich der Haltenase mit einer Freistellung versehen ist.In the solution according to the invention it is advantageous that the retaining lug is much less susceptible to breakage when it is pushed into the bearing unit due to its tensile stress. In addition, the restoring force generated by the resilient support advantageously ensures that a controlled and thus secure snapping of the retaining lug into the associated recess in the housing is achieved. This secure snapping can also be recognized acoustically by a distinctive sound. The control of the restoring force by partially supporting the retaining lug on the component to be fixed can now be carried out in different ways. It is provided according to claim 2, for example, that the holding lug has a triangular configuration in longitudinal section and a lip is formed as an elastic support element at its end spaced apart in the circumferential direction, the holding lug being formed on the end of an axial part facing the insertion direction and by two gaps spaced apart in the circumferential direction and extending in the axial direction, and one gap extending in the circumferential direction. According to a further feature of the invention according to claim 3 it is provided that the axially extending part of the tolerance ring is provided with recesses in the circumferential direction following the retaining lugs. This change of elevations and recesses ensures that the tolerance ring can be pressed into the mounting hole of the housing without problems due to material displacements. It is apparent from claim 4 that a radially extending flange is arranged at the end of the axial part facing away from the retaining lug and is provided with an exemption in the region of the retaining lug.

Nach Anspruch 5 soll in der Draufsicht gesehen die Haltenase am axial verlaufenden Teil in radialer Richtung nach außen versetzt angeordnet sein. Dies stellt eine besonders einfache Entformung der Haltenase beim Herstellen durch Spritzgießen sicher. Nach einem anderen Merkmal der Erfindung gemäß Anspruch 6 soll der Toleranzring in einem als Vierpunktkugellager ausgebildeten Lenkungslager angeordnet sein.According to claim 5, the retaining lug on the axially extending part is to be arranged offset in the radial direction to the outside when viewed in plan view. This ensures a particularly simple demolding of the retaining lug when manufactured by injection molding. According to another feature of the invention according to claim 6, the tolerance ring should be arranged in a steering bearing designed as a four-point ball bearing.

Schließlich geht aus dem zweiten unabhängigen Anspruch 7 hervor, dass der Toleranzring zwischen einem Lagerring eines Radiallagers und einer Sitzfläche einer Welle angeordnet sein soll, wobei erfindungsgemäß wenigstens eine auf Zug beanspruchte Haltenase angeordnet ist, die sich beim Einschieben des Toleranzringes in die Lagerbaueinheit an der Sitzfläche der Welle federnd abstützt, so dass auf die Haltenase eine radial nach außen gerichtete Rückstell kraft wirkt. Auch hier werden die bereits beschriebenen Vorteile gemäß Anspruch 1 realisiert.Finally, it emerges from the second independent claim 7 that the tolerance ring is to be arranged between a bearing ring of a radial bearing and a seat surface of a shaft, wherein according to the invention at least one retaining lug which is subject to tension is arranged, which is located on the seat surface when the tolerance ring is inserted into the bearing assembly the shaft resiliently supported, so that a radially outwardly directed on the retaining lug Restoring force acts. The advantages already described are also realized here according to claim 1.

Die Erfindung wird an nachstehendem Ausführungsbeispiel näher erläutert.The invention is explained in more detail using the following exemplary embodiment.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Es zeigen:Show it:

Figur 1 eine perspektivische Darstellung eines erfindungsgemäßen Toleranzringes;Figure 1 is a perspective view of a tolerance ring according to the invention;

Figur 2 einen Querschnitt durch eine Lageranordnung gemäß derFigure 2 shows a cross section through a bearing arrangement according to the

Linie ll-ll in Figur 3 undLine ll-ll in Figure 3 and

Figur 3 einen teilweisen Längsschnitt durch eine Lageranordnung mit erfindungsgemäßem Toleranzring.3 shows a partial longitudinal section through a bearing arrangement with a tolerance ring according to the invention.

Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings

Der in den Figuren 1 bis 3 dargestellte Toleranzring 1 ist als Spritzgußteil aus einem polymeren Werkstoff hergestellt und besteht aus dem axialen Teil 2, an dem an einer Seite der radial verlaufende Flansch 3 angeformt ist. Im Toleranzring 1 ist ein Lageraußenring 4 angedeutet, der in axialer Richtung an dem Haltevorsprung 5 anliegt. Die Einschubrichtung des Toleranzringes 1 in ein nicht gezeigtes Gehäuse ist durch den Pfeil dargestellt. An dem der Einschubrichtung zugewandten Ende ist der axiale Teil 2 des Toleranzringes 1 mit zwei gegenüberliegenden Haltenasen 6 versehen, von denen nur eine sichtbar ist und die dreieckförmig ausgebildet sind und an ihren beiden in Umfangsrichtung voneinander beabstandeten Enden je eine angeformte Lippe 7 als elastisches Stützelement aufweisen. Die Haltenase 6 ist durch zwei in Umfangsrichtung voneinander beabstandete, in axialer Richtung verlaufende Spalte 8 und durch den in Umfangsrichtung verlaufenden Spalt 9 freigestellt. Wie aus der Figur 1 ersichtlich, ist der axiale Teil 2 des Toleranzringes 1 beidseitig im Anschluss an die Haltenasen in Umfangsrichtung mit axial verlaufenden Ausnehmungen 10 versehen, die durch ebenfalls axial verlaufende Erhebungen 11 voneinander getrennt sind. Die Haltenasen 6 sind am axial verlaufenden Teil 2 in radialer Richtung nach außen versetzt angeformt. Außerdem ist der radial verlaufende Flansch 3 im Bereich der Haltenasen 6 mit je einer Freistellung 12 versehen.The tolerance ring 1 shown in Figures 1 to 3 is made as an injection molded part from a polymeric material and consists of the axial part 2, on which the radially extending flange 3 is formed on one side. In the tolerance ring 1, a bearing outer ring 4 is indicated, which bears against the holding projection 5 in the axial direction. The direction of insertion of the tolerance ring 1 in a housing, not shown, is shown by the arrow. At the end facing the direction of insertion, the axial part 2 of the tolerance ring 1 is provided with two opposite retaining lugs 6, only one of which is visible and which are triangular in shape and each have an integrally formed lip 7 as an elastic support element at their two ends spaced apart in the circumferential direction , The retaining lug 6 is released by two gaps 8 spaced apart in the circumferential direction and running in the axial direction and by the gap 9 running in the circumferential direction. As can be seen from FIG. 1, the axial part 2 of the tolerance ring 1 is provided on both sides in the circumferential direction following the retaining lugs with axially extending recesses 10 which are separated from one another by likewise axially extending elevations 11. The retaining lugs 6 are integrally formed on the axially extending part 2 offset in the radial direction to the outside. In addition, the radially extending flange 3 is provided with an exemption 12 in the region of the holding lugs 6.

Wie insbesondere die Figur 2 zeigt, stützt sich die Haltenase 6 mit ihren beidseitig in Umfangsrichtung angeformten Lippen 7 auf den Lageraußenring 4 ab. Beim Einpressen in die nicht gezeigte Aufnahmebohrung wird dieAs FIG. 2 shows in particular, the retaining lug 6 is supported on the bearing outer ring 4 with its lips 7 formed on both sides in the circumferential direction. When pressed into the mounting hole, not shown, the

Haltenase 6 auf Zug beansprucht und radial nach innen in Richtung desRetaining nose 6 strained and radially inward towards the

Lageraußenringes 4 bewegt, wobei über die axiale Ausdehnung der beidseitigen Anbindungen 13 die Abrißkraft und die Steifigkeit der Haltenase 6 beeinflussbar ist. Dabei ergibt sich ein mit s bezeichneter max. Federweg, wobei die beiden angeformten Lippen 7 dementsprechend in Umfangsrichtung in die Spalte 8 ausweichen müssen. Wird die zugehörige Ausnehmung desBearing outer ring 4 moves, the tearing force and the rigidity of the retaining lug 6 being able to be influenced via the axial expansion of the connections 13 on both sides. This results in a max. Travel, the two molded lips 7 must accordingly circumferentially move into the column 8. If the corresponding recess of the

Gehäuses nach dem erforderlichen axialen Verschiebeweg erreicht, so wird durch die gespreitzten Lippen 7 eine Rückstell kraft erzeugt, die die Haltenase 6 in die Ausnehmung einfedern lässt. Housing reached after the required axial displacement path, a restoring force is generated by the spread lips 7, which allows the retaining lug 6 to deflect into the recess.

Bezugszeichenreference numeral

Toleranzring axial verlaufender Teil radial verlaufender FlanschTolerance ring axially extending part radial flange

LageraußenringBearing outer ring

Haltevorsprungretaining projection

Haltenaseretaining nose

Lippelip

Spaltgap

Spaltgap

Ausnehmungrecess

Erhebungsurvey

Freistellungexemption

Anbindungconnection

Federweg travel

Claims

Patentansprüche claims 1. Toleranzring (1 ) aus einem polymeren Werkstoff, der einen radialen Abstand überbrückend zwischen einem Lageraußenring (4) eines Radiallagers und einer Aufnahmebohrung eines Gehäuses angeordnet ist, wobei der Toleranzring (1 ) Mittel zur Verhinderung seiner axialen Verschiebung aufweist, die formschlüssig in zugehörige Ausnehmungen des Gehäuses eingreifen, dadurch gekennzeichnet, dass wenigstens eine auf Zug beanspruchte Haltenase (6) angeordnet ist, die sich beim Einschieben des Toleranzringes (1 ) in die Lagerbaueinheit am Lageraußenring (4) federnd abstützt, so dass auf die Haltenase (6) eine radial nach außen gerichtete Rückstellkraft wirkt.1. tolerance ring (1) made of a polymeric material, which bridges a radial distance between a bearing outer ring (4) of a radial bearing and a receiving bore of a housing, wherein the tolerance ring (1) has means for preventing its axial displacement, which is positively associated with Recesses in the housing, characterized in that at least one holding lug (6) which is subjected to tension is arranged, which is resiliently supported on the bearing outer ring (4) when the tolerance ring (1) is inserted into the bearing unit, so that a holding lug (6) radially outward restoring force acts. 2. Toleranzring (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Haltenase (6) im Längsschnitt gesehen eine dreieckförmige Ausbildung aufweist und an ihren in Umfangsrichtung von einander beabstandeten Enden je eine Lippe (7) als elastisches Stützelement angeformt ist, wobei die Haltenase (6) an dem der Einschubrichtung zugewandten2. tolerance ring (1) according to claim 1, characterized in that the retaining lug (6) seen in longitudinal section has a triangular configuration and at its circumferentially spaced ends a lip (7) is formed as an elastic support element, the retaining lug (6) on the one facing the insertion direction Ende eines eines axialen Teils (2) angeformt ist und durch zwei in Umfangsrichtung voneinander beabstandete, in axialer Richtung verlaufende Spalte (8), sowie einen in Umfangsrichtung verlaufenden Spalt (9) freigestellt ist.The end of one of the axial parts (2) is formed and is exposed by two gaps (8) spaced apart in the circumferential direction and extending in the axial direction, and by a gap (9) extending in the circumferential direction. 3. Toleranzring (1) nach Anspruch 2, dadurch gekennzeichnet, dass in Umfangsrichtung im Anschluss an die Haltenase (6) der axial verlaufende Teil (2) mit Ausnehmungen (10) versehen ist.3. tolerance ring (1) according to claim 2, characterized in that in the circumferential direction following the retaining lug (6) the axially extending part (2) is provided with recesses (10). 4. Toleranzring (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass an dem der Haltenase (6) abgewandten Ende des axialen Teils (2) ein radial verlaufender Flansch (3) angeordnet ist, der im Bereich der Haltenase (6) mit einer Freistellung (12) versehen ist. 4. Tolerance ring (1) according to claim 2, characterized in that at the end of the axial part (2) facing away from the retaining lug (6) a radially extending flange (3) is arranged, which in the region of the retaining lug (6) with an exemption (12) is provided. 5. Toieranzring (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass in der Draufsicht gesehen die Haltenase (6) am axial verlaufenden Teil (2) in radialer Richtung nach außen versetzt angeordnet ist.5. Toieranzring (1) according to claim 2, characterized in that seen in the plan view, the retaining lug (6) on the axially extending part (2) is arranged offset in the radial direction to the outside. 6. Toleranzring (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass er in einem als Vierpunktkugellager ausgebildeten Lenksäulenlager angeordnet ist.6. Tolerance ring (1) according to claim 2, characterized in that it is arranged in a steering column bearing designed as a four-point ball bearing. 7. Toleranzring (1 ) aus einem polymeren Werkstoff, der einen radialen Abstand überbrückend zwischen einem Lagerinnenring eines Radiallagers und einer Sitzfläche einer Welle angeordnet ist, wobei der Toleranzring (1 ) Mittel zur Verhinderung seiner axialen Verschiebung aufweist, die formschlüssig in zugehörige Ausnehmungen des Lagerinnenringes eingreifen, dadurch gekennzeichnet, dass wenigstens eine auf Zug beanspruchte Haltenase (6) angeordnet ist, die sich beim Einschieben des Toleranzringes (1) in die Lagerbaueinheit an der Sitzfläche der Welle federnd abstützt, so dass auf die Haltenase (6) eine radial nach außen gerichtete Rückstellkraft wirkt. 7. tolerance ring (1) made of a polymeric material, which is arranged bridging a radial distance between a bearing inner ring of a radial bearing and a seat surface of a shaft, wherein the tolerance ring (1) has means for preventing its axial displacement, which form-fitting in the corresponding recesses of the bearing inner ring intervene, characterized in that at least one retaining lug (6) which is subjected to tension is arranged, which is resiliently supported on the seating surface of the shaft when the tolerance ring (1) is inserted into the bearing assembly, so that the retaining lug (6) is radially outward directed restoring force acts.
PCT/EP2000/006441 1999-10-26 2000-07-07 Tolerance ring of a radial bearing Ceased WO2001031211A1 (en)

Applications Claiming Priority (2)

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DE19951388.0 1999-10-26
DE19951388A DE19951388A1 (en) 1999-10-26 1999-10-26 Tolerance ring

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US9224409B2 (en) 2012-04-30 2015-12-29 Saint-Gobain Performance Plastics Rencol Limited Tolerance ring with grouped waves
US9869330B2 (en) 2012-06-29 2018-01-16 Saint-Gobain Performance Plastics Rencol Limited Multipiece tolerance ring
WO2022207394A1 (en) * 2021-04-01 2022-10-06 Thyssenkrupp Presta Ag Bearing cup for a steering column, and steering column having a bearing cup of this type

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US9641040B2 (en) 2012-02-16 2017-05-02 Mitsubishi Electric Corporation Rotating electric machine
US9224409B2 (en) 2012-04-30 2015-12-29 Saint-Gobain Performance Plastics Rencol Limited Tolerance ring with grouped waves
US9869330B2 (en) 2012-06-29 2018-01-16 Saint-Gobain Performance Plastics Rencol Limited Multipiece tolerance ring
WO2022207394A1 (en) * 2021-04-01 2022-10-06 Thyssenkrupp Presta Ag Bearing cup for a steering column, and steering column having a bearing cup of this type

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