WO1994023959A1 - Wheel bearing for motor vehicles - Google Patents

Wheel bearing for motor vehicles Download PDF

Info

Publication number
WO1994023959A1
WO1994023959A1 PCT/EP1994/001216 EP9401216W WO9423959A1 WO 1994023959 A1 WO1994023959 A1 WO 1994023959A1 EP 9401216 W EP9401216 W EP 9401216W WO 9423959 A1 WO9423959 A1 WO 9423959A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer ring
bearing
motor vehicles
bearing bracket
wheel bearing
Prior art date
Application number
PCT/EP1994/001216
Other languages
German (de)
French (fr)
Inventor
Heinrich Hofmann
Rolf-Dieter Betzer
Rolf Weiler
Original Assignee
Itt Automotive Europe 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 Itt Automotive Europe Gmbh filed Critical Itt Automotive Europe Gmbh
Publication of WO1994023959A1 publication Critical patent/WO1994023959A1/en
Priority to KR1019960700012A priority Critical patent/KR960703662A/en

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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings 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
    • F16C19/18—Bearings 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 two or more rows of balls
    • F16C19/181—Bearings 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 two or more rows of balls with angular contact
    • F16C19/183—Bearings 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 two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings 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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • 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

Definitions

  • the invention relates to a wheel bearing according to the preamble of claim 1.
  • the outer bearing ring is axially fixed in the bearing bracket by a snap ring after the outer ring has been inserted into the bore of the bearing bracket with a slight sliding fit.
  • the snap ring required has several major disadvantages. First of all, it represents an additional part. In addition, it is difficult to handle when mounting the bearing in the bearing bracket.
  • the fastening holes are located in the area of the outer ring, they perform a further function. This is because pressure stamps of an assembly tool can be passed through them, which are attached to the end faces of the outer ring during assembly and push the oversized outer ring into the bore of the bearing bracket. The high forces that occur are exerted directly on the outer ring. This prevents damage to the rolling elements and raceways that would occur if the assembly forces had to be guided to the outer ring via the inner ring and the rolling elements.
  • a favorable configuration in terms of assembly results from the fact that the end faces of the outer ring and the bearing support lie in one plane after assembly. This means that an exact axial assignment of the outer ring and bearing bracket is always ensured without any additional effort, because this position automatically results from the fact that the end faces of the assembly stamp come into contact with the end face of the bearing bracket and so the outer ring does not move any further can move.
  • the invention is illustrated by a figure. This shows a partial cross section through the storage according to the invention.
  • the wheel bearing consists of an inner ring 1, with which both the outer part 2 of a joint and a fastening flange 3 are integrated, the two rows of balls 4 and the outer ring 5.
  • the latter has a smooth, continuous cylindrical outer surface 5 'and has a high interference fit fastened in the shoulderless bore surface 6 'of the bearing bracket 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

In order to easily mount the outer ring of a wheel bearing for motor vehicles with simple means and a sure fit, the fastening holes (3') of the flange (3) are located in the area of the outer surface (5') of the outer ring (5) force fitted into the bearing support (6) and the front faces of the outer ring (5) and of the bearing support (6) lie in the same plane (8).

Description

Radlager für KraftfahrzeugeWheel bearings for motor vehicles
Die Erfindung bezieht sich auf ein Radlager nach dem Ober¬ begriff des Anspruchs 1.The invention relates to a wheel bearing according to the preamble of claim 1.
Ein Radlager für Kraftfahrzeuge der angegebenen Art' ist aus der DE-PS 30 10 726 ersichtlich. Am Radialflansch des Wälz¬ lagerinnenrings sind hier Löcher angebracht, die etwa im Bereich des Wälzlageraußenrings liegen. Diese Löcher sind aber nur zur Befestigung anderer Teile an diesem Flansch durch die Radbolzen vorgesehen. Die axiale Befestigung des Wälzlageraußenrings im Lagerträger erfolgt durch einen Sprengring, nachdem der Außenring mit leichtem Schiebesitz in die Bohrung des Lagerträgers eingeführt worden ist. Der erforderliche Sprengring besitzt einige wesentliche Nach¬ teile. Zunächst einmal stellt er ein zusätzliches Teil dar. Außerdem ist er bei der Montage des Lagers in den Lagerträ¬ ger nur schwer zu handhaben. Er muß nämlich in sehr engen Raumverhältnissen mit zusätzlichen Hilfsmitteln in die zu¬ sätzliche Nut des Lagerträgers eingeschnappt werden. Sowohl an die Nut als auch den Sprengring werden dabei hohe Genau¬ igkeitsanforderungen gestellt, denn der mit Schiebesitz befestigte Außenring darf keinesfalls axial mit Spiel im Träger sitzen. Letzteres würde u.a. bald zum Ausfall des Lagers führen.A wheel bearing for motor vehicles of the specified type 'can be seen from DE-PS 30 10 726. Holes are located on the radial flange of the inner ring of the roller bearing, which lie approximately in the area of the outer ring of the roller bearing. However, these holes are only intended for fastening other parts to this flange by means of the wheel bolts. The outer bearing ring is axially fixed in the bearing bracket by a snap ring after the outer ring has been inserted into the bore of the bearing bracket with a slight sliding fit. The snap ring required has several major disadvantages. First of all, it represents an additional part. In addition, it is difficult to handle when mounting the bearing in the bearing bracket. It must namely be snapped into the additional groove of the bearing bracket in a very narrow space with additional aids. Both the groove and the snap ring are subject to high accuracy requirements, because the outer ring fastened with a sliding seat must never be axially seated in the carrier. The latter would include soon lead to bearing failure.
Es ist daher Aufgabe der Erfindung eine Radlagerung nach dem Oberbegriff des Anspruchs 1 so weiter zu verbessern, daß die oben genannten Nachteile nicht eintreten und sich mit einfachen Mitteln eine einfache Montage des Außenrings mit sicherem Sitz ergibt. Die Lösung dieser Aufgabe ist im kennzeichnenden Teil des Anspruchs angegeben.It is therefore an object of the invention to improve a wheel bearing according to the preamble of claim 1 so that the disadvantages mentioned above do not occur and simple assembly results in simple assembly of the outer ring with a secure fit. The solution to this problem is specified in the characterizing part of the claim.
Da sich gemäß der Erfindung die Befestigungslöcher im Be¬ reich des Außenrings befinden, erfüllen diese noch eine weitere Funktion. Durch sie können nämlich Druckstempel eines Montagewerkzeugs hindurchgeführt werden, die an den Stirnseiten des Außenrings bei der Montage angesetzt werden und den mit Übermaß versehenen Außenring in die Bohrung des Lagerträgers einschieben. Die dabei auftretenden hohen Kräfte werden direkt auf den Außenring ausgeübt. Damit wird eine Beschädigung der Wälzkörper und Laufbahnen vermieden, die dann auftreten würden, wenn die Montagekräfte über den Innenring und die Wälzkörper zum Außenring geführt werden müßten.Since, according to the invention, the fastening holes are located in the area of the outer ring, they perform a further function. This is because pressure stamps of an assembly tool can be passed through them, which are attached to the end faces of the outer ring during assembly and push the oversized outer ring into the bore of the bearing bracket. The high forces that occur are exerted directly on the outer ring. This prevents damage to the rolling elements and raceways that would occur if the assembly forces had to be guided to the outer ring via the inner ring and the rolling elements.
Eine montageraäßig günstige Konstellation ergibt sich noch dadurch, daß die Stirnflächen des Außenrings und des La¬ gerträgers nach der Montage in einer Ebene liegen. Dadurch ist nämlich ohne zusätzlichen Aufwand immer eine genaue axiale Zuordnung von Außenring und Lagerträger sicherge¬ stellt, und zwar weil diese Position sich automatisch da¬ durch ergibt, daß die Stirnseiten der Montagestempel an der Stirnseite des Lagerträgers zur Anlage kommen und so den Außenring nicht weiter verschieben können.A favorable configuration in terms of assembly results from the fact that the end faces of the outer ring and the bearing support lie in one plane after assembly. This means that an exact axial assignment of the outer ring and bearing bracket is always ensured without any additional effort, because this position automatically results from the fact that the end faces of the assembly stamp come into contact with the end face of the bearing bracket and so the outer ring does not move any further can move.
Die Erfindung wird an Hand einer Figur näher erläutert. Diese zeigt einen Teilquerschnitt durch die erfindungsgemä¬ ße Lagerung. Das Radlager besteht aus einem Innenring 1, mit dem sowohl das Außenteil 2 eines Gelenkes als auch ein Befestigungs- flansch 3 integriert ist, aus den beiden Kugelreihen 4 und dem Außenring 5. Letzterer besitzt eine glatt durchgehende zylindrische Mantelfläche 5' und ist mit hohem Preßsitz in der schulterlosen Bohrungsfläche 6' des Lagerträgers 6 be¬ festigt.The invention is illustrated by a figure. This shows a partial cross section through the storage according to the invention. The wheel bearing consists of an inner ring 1, with which both the outer part 2 of a joint and a fastening flange 3 are integrated, the two rows of balls 4 and the outer ring 5. The latter has a smooth, continuous cylindrical outer surface 5 'and has a high interference fit fastened in the shoulderless bore surface 6 'of the bearing bracket 6.
Die gewünschte einfache Montage dieser Teile erfolgt da¬ durch, daß durch die bereits vorhandenen am Umfang verteil¬ ten Befestigungslöcher 3' am Flansch 3 nur angedeutete axi¬ al gerichtete Druckstempel 7 eines Montagewerkzeugs einge¬ führt werden. Da diese Löcher 3 und damit auch die Stempel 7 im Bereich der Mantelfläche 5' des Außenrings 5 angeord¬ net sind, wird mit ihnen zunächst der Außenring 5 in die Bohrungsfläche 6' des Lagerträgers 6 eingepreßt, und zwar so lange bis die Stirnfläche 5" des Außenrings 5 in der gleichen Ebene 8 liegt wie die Stirnfläche 6" des Lagerträ¬ gers 6. Damit wird offensichtlich eine einfache Montage bei genauer Positionierung des Außenrings 5 im Lagerträger 6 erreicht. Beschädigungen der anderen Lagerteile sind nicht zu befürchten, da die hohen Montagekräfte sie nicht bela¬ sten. The desired simple assembly of these parts is achieved by introducing through the already existing fastening holes 3 'on the flange 3 distributed around the circumference only indicated axially directed pressure stamps 7 of an assembly tool. Since these holes 3 and thus also the punches 7 are arranged in the area of the outer surface 5 'of the outer ring 5, the outer ring 5 is first pressed with them into the bore surface 6' of the bearing bracket 6, and so long until the end face 5 " of the outer ring 5 lies in the same plane 8 as the end face 6 "of the bearing carrier 6. Obviously, simple assembly is thereby achieved with precise positioning of the outer ring 5 in the bearing carrier 6. There is no fear of damage to the other bearing parts, since the high assembly forces do not put a strain on them.

Claims

PatentanspruchClaim
Radlager für Kraftfahrzeuge, bestehend aus einem zweireihi¬ gen Schrägwälzlager, wobei der Außenring eine zylindrische Mantelfläche besitzt, die in eine zumindest einseitig ab¬ satzlose Bohrung des Lagerträgers eingesetzt ist, und wobei der Innenring auf der Montageseite mit einem radial nach außen gerichteten Befestigungsflansch versehen ist, dadurch g e k e n n z e i c h n e t, daß sich die Befestigungslö¬ cher (3') des Flansches (3), wie an sich bekannt, im Be¬ reich der Mantelfläche (5') des mit Preßsitz im Lagerträger (6) sitzenden Außenrings (5) befinden und die Stirnflächen des Außenrings (5) und des Lagerträgers (6) in einer Ebene (8) liegen. Wheel bearing for motor vehicles, consisting of a double row angular contact roller bearing, the outer ring has a cylindrical outer surface which is inserted into a bore of the bearing bracket at least on one side without a shoulder, and the inner ring is provided on the mounting side with a radially outwardly directed fastening flange , characterized in that the fastening holes (3 ') of the flange (3), as is known per se, are located in the region of the outer surface (5') of the outer ring (5) which is press-fitted in the bearing bracket (6) and the end faces of the outer ring (5) and the bearing bracket (6) lie in one plane (8).
PCT/EP1994/001216 1993-04-21 1994-04-19 Wheel bearing for motor vehicles WO1994023959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960700012A KR960703662A (en) 1994-04-19 1996-01-04 DEVICE FOR MANUFACTURING PASTILLES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4312933A DE4312933A1 (en) 1993-04-21 1993-04-21 Wheel bearings for motor vehicles
DEP4312933.1 1993-04-21

Publications (1)

Publication Number Publication Date
WO1994023959A1 true WO1994023959A1 (en) 1994-10-27

Family

ID=6485948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/001216 WO1994023959A1 (en) 1993-04-21 1994-04-19 Wheel bearing for motor vehicles

Country Status (2)

Country Link
DE (1) DE4312933A1 (en)
WO (1) WO1994023959A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1292328B1 (en) * 1997-05-23 1999-01-29 Skf Ind Spa PROCEDURE FOR THE ASSEMBLY OF A BEARING-HUB ASSEMBLY IN THE POST OF THE SUSPENSION OF A MOTOR VEHICLE.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917168A1 (en) * 1968-04-10 1969-10-23 Skf Svenska Kullagerfab Ab Storage device for wheels of a motor vehicle
US4427242A (en) * 1982-01-26 1984-01-24 Atlantic Richfield Company Unitized tapered roller bearing
DE8800630U1 (en) * 1988-01-20 1989-05-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
FR2631402A1 (en) * 1988-05-13 1989-11-17 Roulements Soc Nouvelle Rolling bearing mounted in vehicle stub-axle support - uses duplex bearing whose outer race is grooved for e.g. rectangular or tapered circlips, which retain it axially in support bore
EP0537043A1 (en) * 1991-10-09 1993-04-14 S.N.R. Roulements Bearing mounting with an outer bearing ring secured in a bore

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010726C2 (en) * 1980-03-20 1982-05-19 Uni-Cardan Ag, 5200 Siegburg Device for fastening a vehicle wheel to a wheel hub which can be driven via a constant velocity swivel joint and is mounted on a wheel carrier
DE3421188A1 (en) * 1984-06-07 1985-12-12 SKF GmbH, 8720 Schweinfurt FASTENING A ROLLER BEARING IN A HOUSING OR THE LIKE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917168A1 (en) * 1968-04-10 1969-10-23 Skf Svenska Kullagerfab Ab Storage device for wheels of a motor vehicle
US4427242A (en) * 1982-01-26 1984-01-24 Atlantic Richfield Company Unitized tapered roller bearing
DE8800630U1 (en) * 1988-01-20 1989-05-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
FR2631402A1 (en) * 1988-05-13 1989-11-17 Roulements Soc Nouvelle Rolling bearing mounted in vehicle stub-axle support - uses duplex bearing whose outer race is grooved for e.g. rectangular or tapered circlips, which retain it axially in support bore
EP0537043A1 (en) * 1991-10-09 1993-04-14 S.N.R. Roulements Bearing mounting with an outer bearing ring secured in a bore

Also Published As

Publication number Publication date
DE4312933A1 (en) 1994-10-27

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