DE20215271U1 - Roller bearing with several parallel arranged axial paths, comprising more curved inner path and less curved outer path - Google Patents
Roller bearing with several parallel arranged axial paths, comprising more curved inner path and less curved outer path Download PDFInfo
- Publication number
- DE20215271U1 DE20215271U1 DE2002215271 DE20215271U DE20215271U1 DE 20215271 U1 DE20215271 U1 DE 20215271U1 DE 2002215271 DE2002215271 DE 2002215271 DE 20215271 U DE20215271 U DE 20215271U DE 20215271 U1 DE20215271 U1 DE 20215271U1
- Authority
- DE
- Germany
- Prior art keywords
- bearing unit
- raceways
- rolling bearing
- ring
- unit 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 - Lifetime
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
- F16C33/30—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
-
- 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
-
- 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
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
-
- 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
Abstract
Description
Die Erfindung betrifft eine mehrreihige Wälzlagereinheit gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a multi-row rolling bearing unit according to the generic term of claim 1.
Mehrreihige Wälzlagereinheiten sind in vielfältigen Bauformen bekannt. So ist aus der WO 99/31398 ein zweireihiges Kegelrollenlager bekannt, bei dem der Innenring durch eine Achse ausgebildet ist und das zwei Außenringe aufweist, die durch einen zweigeteilten Ring auf einen axialen Abstand zueinander gehalten werden. Zwischen den Außenringen und der Achse rollen zwei Sätze von Kegelrollen ab. Insbesondere wenn man von der in der WO 99/31398 dargestellten Geometrie der Wälzlagereinheit derart abweicht, dass die Achse im Bereich der Übergänge zwischen den Wälzkörperlaufbahnen und den seitlichen Führungsborden nicht so massiv ausgebildet ist, wie dies gemäß der WO 99/31398 der Fall ist und wenn die Achse zudem sehr stark auf Biegung beansprucht wird, kann es zu Problemen kommen. Diese resultieren daraus, dass es jeweils durch den abrupten Übergang zwischen der Laufbahn und dem seitlichen Führungsbord zu Spannungskonzentrationen kommt, die letztendlich zu einer Rissbildung führen können. Diese Problematik wird dadurch noch verschärft, wenn in diesem Übergangsbereich, wie dies bei Kegelrollenlagern häufig der Fall ist, zudem eine umlaufende radiale Vertiefung ausgebildet ist. Diese Schwachstelle der Achse kann durch Verwendung eines separaten Innenrings vermieden werden, der auf die Achse aufgezogen wird, wobei sich allerdings die Anzahl der Einzelteile der Wälzlagereinheit und der Montageaufwand erhöhen.Multi-row roller bearing units are available in a wide range of designs known. WO 99/31398 is a double row tapered roller bearing known in which the inner ring is formed by an axis and that two outer rings has an axial distance through a two-part ring are held to each other. Roll between the outer rings and the axle two sentences from tapered rollers. Especially when one of the in WO 99/31398 illustrated geometry of the rolling bearing unit deviates such that the axis in the area of the transitions between the rolling element raceways and the side guides is not as massive as is the case according to WO 99/31398 and if the axis is also very heavily used for bending problems may arise. These result from the fact that it through the abrupt transition between the raceway and the lateral guide board to stress concentrations comes, which can ultimately lead to cracking. This problem will exacerbated by if in this transition area, as is often the case with tapered roller bearings the case is also formed a circumferential radial recess is. This weak point of the axis can be solved by using a separate one Avoid inner ring that is pulled onto the axle, however, the number of individual parts of the rolling bearing unit and increase the assembly effort.
Der Erfindung liegt daher die Aufgabe zugrunde, eine mehrreihige Wälzlagereinheit so auszubilden, dass sie zum einen leicht zu montieren ist und zum anderen hohe Belastungen aufnehmen kann.The invention is therefore the object based on a multi-row rolling bearing unit to be designed so that it is easy to assemble on the one hand and others can take high loads.
Diese Aufgabe wird durch eine mehrreihige Wälzlagereinheit mit der Merkmalskombination gemäß Anspruch 1 gelöst.This task is accomplished through a multi-row rolling bearing unit with the combination of features according to claim 1 solved.
Die erfindungsgemäße Wälzlagereinheit weist einen Innenring auf, der über mehrere axial nebeneinander angeordnete innere Laufbahnen verfügt und einteilig mit einem Achsstummel ausgebildet ist. Weiterhin weist die erfindungsgemäße Wälzlagereinheit mehrere axial nebeneinander angeordnete Außenringe mit je einer äußeren Laufbahn und einer Vielzahl von Wälzkörpern auf, die korrespondierend zu den inneren und äußeren Laufbahnen zu Wälzkörperreihen zusammengefasst sind und zwischen den inneren und den äußeren Laufbahnen abrollen. Die erfindungsgemäße Wälzlagereinheit zeichnet sich dadurch aus, dass die inneren Laufbahnen, die äußeren Laufbahnen und die Wälzkörper jeweils ein Profil aufweisen, an das durch Überlagerung einer balligen Form und einer Kegelform gebildet ist.The rolling bearing unit according to the invention has one Inner ring on the over has several axially arranged inner raceways and in one piece is formed with an axle stub. Furthermore, the rolling bearing unit according to the invention several axially adjacent outer rings, each with an outer raceway and a variety of rolling elements, which correspond to the inner and outer raceways to rows of rolling elements are summarized and between the inner and outer raceways roll. The rolling bearing unit according to the invention is characterized by the fact that the inner raceways, the outer raceways and the rolling elements each have a profile to which by superimposing a spherical shape and a cone shape is formed.
Die erfindungsgemäße Wälzlagereinheit hat den Vorteil, dass sie sehr einfach zu montieren ist und für den Einsatz unter hohen Belastungen geeignet ist. Durch die Kegelform der Wälzkörper kann die Wälzlagereinheit sehr steif ausgebildet werden. Gleichzeitig kann durch die überlagerte Balligkeit auf die Ausbildung von Borden als Axialanschlag verzichtet werden, so dass Schwachpunkte im Übergangsbereich zwischen den Laufbahnen und den Borden vermieden werden können.The rolling bearing unit according to the invention has the advantage that it is very easy to assemble and for use under high loads suitable is. Due to the conical shape of the rolling elements, the rolling bearing unit can be very stiff. At the same time can be overlaid by the Crownedness dispenses with the formation of rims as an axial stop so that weak points in the transition area between the Races and the shelves can be avoided.
Der Krümmungsradius der Balligkeit der äußeren Laufbahnen ist bevorzugt größer als der maximale Radius der äußeren Laufbahnen. Diese Geometrie hat den Vorteil, dass die Eigenschaften der Radlagereinheit weiter verbessert werden und insbesondere auch die zulässige maximale Belastung gesteigert werden kann. Die beiden Außenringe können in O-Anordnung zueinander positioniert sein, um eine hohe Steifigkeit zu erzielen und Axialkräfte optimal aufnehmen zu können. Zur Herstellung eines definierten Abstands der Außenringe zueinander kann axial zwischen den Außenringen ein Zwischenring angeordnet sein. Der Zwischenring kann in Umfangsrichtung wenigstens einmal geteilt sein. Weiterhin kann der Zwischenring einen in Radialrichtung federnden Federring zur axialen Fixierung des Zwischenrings in einem Gehäuse aufweisen.The radius of curvature of the crown the outer raceways is preferably greater than the maximum radius of the outer raceways. This geometry has the advantage that the properties of the wheel bearing unit be further improved and in particular also the permissible maximum Load can be increased. The two outer rings can be in an O arrangement to each other be positioned to achieve high rigidity and optimally absorb axial forces to be able to. To create a defined distance between the outer rings an intermediate ring can be arranged axially between the outer rings his. The intermediate ring can at least once in the circumferential direction be shared. Furthermore, the intermediate ring can one in the radial direction resilient spring ring for axially fixing the intermediate ring in one casing exhibit.
Die Erfindung wird nachstehend anhand des in der einzigen Figur dargestellten Ausführungsbeispiels erläutert, das sich auf eine Radlagereinheit bezieht.The invention is illustrated below of the embodiment illustrated in the single figure explains that refers to a wheel bearing unit.
Die in der Figur dargestellte Radlagereinheit weist
einen Innenring
Ein wesentlicher Aspekt der Erfindung
besteht in der Formgebung der inneren Laufbahnen
Die beiden axial benachbarten inneren
Laufbahnen
Um eine Montage der Radlagereinheit
zu ermöglichen,
ist der Zwischenring
Bezugszeichen
- 1
- Innenring
- 2
- Bohrung (Innenring 1)
- 3
- Bolzen
- 4
- innere Laufbahn
- 5
- Wälzkörper
- 6
- Außenring
- 7
- äußere Laufbahn
- 8
- Gehäuse
- 9
- Zwischenring
- 10
- Nut (Zwischenring)
- 11
- Federring
- 12
- Nut (Gehäuse)
- 13
- Flansch
- 14
- Bohrung (Flansch 13)
- 1
- inner ring
- 2
- Bore (inner ring 1)
- 3
- bolt
- 4
- inner career
- 5
- rolling elements
- 6
- outer ring
- 7
- outer career
- 8th
- casing
- 9
- intermediate ring
- 10
- Groove (intermediate ring)
- 11
- spring washer
- 12
- Groove (housing)
- 13
- flange
- 14
- Bore (flange 13)
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002215271 DE20215271U1 (en) | 2002-10-08 | 2002-10-08 | Roller bearing with several parallel arranged axial paths, comprising more curved inner path and less curved outer path |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002215271 DE20215271U1 (en) | 2002-10-08 | 2002-10-08 | Roller bearing with several parallel arranged axial paths, comprising more curved inner path and less curved outer path |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20215271U1 true DE20215271U1 (en) | 2004-02-26 |
Family
ID=31969812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002215271 Expired - Lifetime DE20215271U1 (en) | 2002-10-08 | 2002-10-08 | Roller bearing with several parallel arranged axial paths, comprising more curved inner path and less curved outer path |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20215271U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006050940A1 (en) * | 2006-10-28 | 2008-04-30 | Schaeffler Kg | Roller bearing for use in wheel bearing of motor vehicle, has outer ring defining outer path, and inner and outer paths formed and arranged such that ling body axis is bent towards bearing axis under angle of incidence |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE331454C (en) * | 1919-02-27 | 1921-01-07 | Skf Svenska Kullagerfab Ab | Self-adjusting roller bearing |
US1789007A (en) * | 1928-03-07 | 1931-01-13 | Leon Karl Oskar | Self-adjusting roller bearing |
DE1080050B (en) * | 1957-09-18 | 1960-04-21 | Demag Ag | Storage, especially for the rolls of a rolling mill |
US4828404A (en) * | 1988-05-16 | 1989-05-09 | Nippon Seiko Kabushiki Kaisha | Self-aligning roller bearing |
JPH11148513A (en) * | 1997-11-17 | 1999-06-02 | Nippon Seiko Kk | Double row roller bearing device |
WO1999031398A1 (en) * | 1997-12-17 | 1999-06-24 | Skf Engineering And Research Centre B.V. | Angular contact bearing unit with one piece inner bearing element |
JP2001132762A (en) * | 1999-11-05 | 2001-05-18 | Aisin Ai Co Ltd | Bearing fixing structure |
-
2002
- 2002-10-08 DE DE2002215271 patent/DE20215271U1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE331454C (en) * | 1919-02-27 | 1921-01-07 | Skf Svenska Kullagerfab Ab | Self-adjusting roller bearing |
US1789007A (en) * | 1928-03-07 | 1931-01-13 | Leon Karl Oskar | Self-adjusting roller bearing |
DE1080050B (en) * | 1957-09-18 | 1960-04-21 | Demag Ag | Storage, especially for the rolls of a rolling mill |
US4828404A (en) * | 1988-05-16 | 1989-05-09 | Nippon Seiko Kabushiki Kaisha | Self-aligning roller bearing |
JPH11148513A (en) * | 1997-11-17 | 1999-06-02 | Nippon Seiko Kk | Double row roller bearing device |
WO1999031398A1 (en) * | 1997-12-17 | 1999-06-24 | Skf Engineering And Research Centre B.V. | Angular contact bearing unit with one piece inner bearing element |
JP2001132762A (en) * | 1999-11-05 | 2001-05-18 | Aisin Ai Co Ltd | Bearing fixing structure |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006050940A1 (en) * | 2006-10-28 | 2008-04-30 | Schaeffler Kg | Roller bearing for use in wheel bearing of motor vehicle, has outer ring defining outer path, and inner and outer paths formed and arranged such that ling body axis is bent towards bearing axis under angle of incidence |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20040401 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20051214 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20090501 |