DE102008026562A1 - Ball and roller bearing for e.g. crankshaft of motor vehicle, has slots formed between profiled pin sections, which are extended in middle regions radial to extent of outer diameter of ring sections - Google Patents
Ball and roller bearing for e.g. crankshaft of motor vehicle, has slots formed between profiled pin sections, which are extended in middle regions radial to extent of outer diameter of ring sections Download PDFInfo
- Publication number
- DE102008026562A1 DE102008026562A1 DE102008026562A DE102008026562A DE102008026562A1 DE 102008026562 A1 DE102008026562 A1 DE 102008026562A1 DE 102008026562 A DE102008026562 A DE 102008026562A DE 102008026562 A DE102008026562 A DE 102008026562A DE 102008026562 A1 DE102008026562 A1 DE 102008026562A1
- Authority
- DE
- Germany
- Prior art keywords
- sections
- rolling elements
- cage
- rolling
- bearing 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.)
- Ceased
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
- F16C33/46—Cages for rollers or needles
- F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
- F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
- F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
- F16C33/545—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part rolled from a band
-
- 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
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/463—Needle bearings with one row or needles consisting of needle rollers held in a cage, i.e. subunit without race 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
-
- 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
- F16C33/46—Cages for rollers or needles
- F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
- F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft ein Wälzlager mit zylindrischen Wälzkörpern und einem Käfig, welcher aus zwei die axiale Erstreckung des Käfigs definierenden Seitenringabschnitten besteht, die an ihrem Außendurchmesser über eine Vielzahl von sich axial erstreckenden, profilierten Stegabschnitten miteinander verbunden sind, wobei die Wälzkörper in zwischen den Stegabschnitten gebildeten Taschen platziert sind und eine radial nach außen gerichtete Bewegung der Wälzkörper mittels Anformungen, welche im Verbindungsbereich der Stegabschnitte mit dem jeweiligen Seitenringabschnitt ausgebildet sind und die Wälzkörper radial übergreifen, unterbindbar ist.The The invention relates to a rolling bearing with cylindrical rolling elements and a cage, which consists of two the axial extent the cage defining side ring sections, the at their outer diameter over a variety connected by axially extending, profiled web portions are, wherein the rolling elements in between the web sections formed pockets are placed and a radially outward directed movement of the rolling elements by means of projections, which in the connecting region of the web sections with the respective Side ring portion are formed and the rolling elements radially overlap, can be prevented.
Hintergrund der ErfindungBackground of the invention
Die in Kraftfahrzeugen im Bereich des Getriebes oder der Kurbelwelle zum Einsatz kommenden Lager sind aufgrund der auftretenden Drehzahlen an diesen Stellen sehr hohen Belastungen unterworfen. Insbesondere bei sehr hochdrehenden Motoren und Getrieben, bei welchen eine große Übersetzung ins Schnelle stattfindet, kann es aufgrund dieser Belastung verstärkt zu Ausfällen kommen. Die Ursache hierfür ist, dass der Käfig der verwendeten Lager aufgrund der durch die hohen Drehzahlen hervorgerufenen Fliehkräfte so stark belastet wird, dass sich die Wälzkörperinnenhalterungen elastisch nach außen durchbiegen. Die Folge ist ein Abbremsen der Wälzkörper und unter Umständen ein Blockieren, was den Ausfall des Lagers hervorruft. Diese Effekte treten insbesondere bei Wälzlagern mit sehr langen Wälzkörpern auf.The in motor vehicles in the area of the transmission or the crankshaft used bearings are due to the speeds occurring subjected to very high loads at these points. Especially in very high-speed engines and gearboxes, where a large translation It can be accelerated due to this load come to failures. The cause of this is that the cage of the bearings used due to the the high speeds caused centrifugal forces so strong is loaded, that the Wälzkörperinnenhalterungen bend elastically outwards. The result is a slowdown the rolling elements and possibly a Blocking, which causes the failure of the camp. These effects occur especially in rolling bearings with very long rolling elements on.
Aus
der
Nachteilhaft an einer derartigen Ausführung eines Käfigs ist, dass ab einer bestimmten Wälzkörperlänge und höheren Drehzahlen ein Nachaußenbiegen des Mittelbereichs der Stegabschnitte stattfindet, was zu dem besagten Abbremsen der Wälzkörper und somit einem Blockieren des Wälzlagers führen kann.disadvantageous to such an embodiment of a cage, that from a certain rolling element length and higher speeds an outward bending of the Midregion of the web sections takes place, resulting in the said Braking the rolling elements and thus blocking of the rolling bearing can lead.
In
der
Zwar wird durch eine derartige Gestaltung der Mittelbereiche die Biegung bei sehr hohen Drehzahlen in gewissem Maße reduziert, aber nicht weitestgehend verhindert, so dass auch bei einer derartigen Ausführungsform ein Abbremsen der Wälzkörper auftreten kann.Though By such a design of the central areas the bend reduced to a certain extent at very high speeds, but not largely prevented, so that even in such a Embodiment, a braking of the rolling elements can occur.
Aufgabe der ErfindungObject of the invention
Ausgehend von den dargelegten Nachteilen des Standes der Technik liegt der Erfindung deshalb die Aufgabe zu Grunde, ein Wälzlager mit einem Käfig zu schaffen, welcher derart ausgestaltet ist, dass ein Nachaußenbiegen der Stegabschnitte aufgrund hoher Fliehkraftbelastung nahezu vollständig verhindert wird.outgoing Of the stated disadvantages of the prior art is the Invention therefore the object of a rolling bearing to create with a cage, which designed in such a way is that an outward bending of the web sections due to high Centrifugal load is almost completely prevented.
Beschreibung der ErfindungDescription of the invention
Die Aufgabe wird ausgehend vom Oberbegriff des Anspruchs 1 in Verbindung mit dessen kennzeichnenden Merkmalen gelöst. Die darauf folgenden, abhängigen Ansprüche geben vorteilhafte Weiterbildungen der Erfindung wieder.The The object is based on the preamble of claim 1 in conjunction solved with its characterizing features. The on it The following, dependent claims give advantageous Further developments of the invention.
Die Erfindung umfasst die technische Lehre, dass die Stegabschnitte sich in ihrem Mittelbereich radial auf das Maß des Außendurchmessers der Seitenringabschnitte erstrecken. Dadurch kann bei sehr hohen Fliehkraftbelastungen ein Abstützen des Mittelbereichs am Außenring des Wälzlagers erfolgen und somit ein Biegen der Stegabschnitte auf einen verschwindend geringen Anteil minimiert werden. Des Weiteren wird durch diese Maßnahme auch eine Verbesserung der Torsionssteifigkeit des Käfigs erreicht.The Invention includes the technical teaching that the web sections in its central region radially to the extent of the outer diameter the side ring sections extend. This can be done at very high Centrifugal loads supporting the mid-range take place on the outer ring of the bearing and thus bending the web sections to a negligible proportion be minimized. Furthermore, by this measure also an improvement of the torsional rigidity of the cage reached.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung verfügen die Stegabschnitte auch in dem sich erstreckenden Mittelbereich über Anformungen zur Stabilisierung der Wälzkörper. Vorteilhaft ist hierbei, dass durch diese Stabilisierung eine geringere Verschränkung der Wälzkörper auftritt und somit der Verbindungsbereich der Stegabschnitte mit dem jeweiligen Seitenringab schnitt entlastet wird. Zudem wirkt sich eine derartige Gestaltung vorteilhaft auf den Bereich aus, an welchem der Wälzkörper die Lastzone verlässt. In Weiterbildung der Erfindung sind pro Tasche jeweils zwei Wälzkörper koaxial zueinander angeordnet. Dies hat den Vorteil, dass eine Tragzahlsteigerung ähnlich wie bei der Verwendung zweier Einzelkäfigen erreicht werden kann, wobei der Herstellungsaufwand gegenüber Einzelkäfigen reduziert ist. Des Weiteren verbessert sich die Zuführung von Schmiermittel zum Lager, da vorgesehene Schmierlochbohrungen nicht mehr frequentiell abgedichtet werden.According to a further advantageous embodiment of the invention, the web sections also have in the extending central region on projections for stabilizing the rolling elements. The advantage here is that by this stabilization a smaller entanglement of the rolling elements occurs and thus the connection area of the web sections with the respective Seitenringab cut relieved becomes. In addition, such a configuration has an advantageous effect on the region at which the rolling element leaves the load zone. In a further development of the invention, two rolling bodies are arranged coaxially with each other per pocket. This has the advantage that a Tragzahlsteigerung can be achieved similar to the use of two individual cages, the production cost is reduced compared to individual cages. Furthermore, the supply of lubricant to the bearing improves, since intended lubrication holes are no longer frequently sealed.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung weisen die Anformungen jeweils auf ihren radialen Innenseiten gewölbte Konturen auf. Durch diese Maßnahme kann eine gute Führung der Wälzkörper erreicht werden.According to one further advantageous embodiment of the invention, the projections each on its radial inner sides curved contours on. This measure can be a good guide the rolling elements can be achieved.
In Weiterbildung der Erfindung sind im Bereich der Anformungen auf den radialen Innenseiten der Stegabschnitte Konturen vorgesehen, welche tangential zu den Querschnitten der Wälzkörper ausgebildet sind. Durch diese tangentiale Konturen kann die Krafteinleitung in den Käfig und somit dessen Belastung reduziert werden.In Development of the invention are in the field of moldings provided the radial inner sides of the web portions contours, which tangential to the cross sections of the rolling elements are formed. Due to these tangential contours, the introduction of force be reduced in the cage and thus its burden.
Gemäß einer weiteren Ausführungsform der Erfindung besteht der Käfig aus Stahl. Durch diese Maßnahme wird eine robuste Ausführung des Käfigs erreicht.According to one Another embodiment of the invention is the cage from steel. This measure becomes a robust design reached the cage.
In Weiterbildung der Erfindung ist der Käfig ein geschweißtes Stanzbiegeteil. Dies hat den Vorteil, dass der Käfig mit niedrigem Herstellungsaufwand produziert werden kann.In Further development of the invention, the cage is a welded Stamped and bent part. This has the advantage that the cage with low production costs can be produced.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung bevorzugter Ausführungsbeispiele der Erfindung anhand der zugehörigen Figuren näher dargestellt. Dabei zeigen:Further, The measures improving the invention will be described below together with the description of preferred embodiments the invention with reference to the accompanying figures shown in more detail. Showing:
Ausführliche Beschreibung der ZeichnungenDetailed description the drawings
In
In
- 11
- Außenringouter ring
- 22
- Innenringinner ring
- 3, 3'3, 3 '
- KäfigCage
- 44
- Wälzkörperrolling elements
- 5a, 5b5a, 5b
- SeitenringabschnitteSide ring sections
- 6, 6'6 6 '
- Stegabschnittweb section
- 77
- Taschebag
- 8a, 8b, 8a', 8b'8a, 8b, 8a ', 8b'
- Anformungenprojections
- 9, 9'9 9 '
- Mittelbereichthe central region
- 10a, 10b10a, 10b
- gewölbte Konturdomed contour
- 1111
- Anformungconformation
- 12a–12d12a-12d
- tangentiale Konturtangential contour
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1262256 B1 [0003] - EP 1262256 B1 [0003]
- - DE 10223432 A1 [0005] - DE 10223432 A1 [0005]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026562A DE102008026562A1 (en) | 2008-06-03 | 2008-06-03 | Ball and roller bearing for e.g. crankshaft of motor vehicle, has slots formed between profiled pin sections, which are extended in middle regions radial to extent of outer diameter of ring sections |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026562A DE102008026562A1 (en) | 2008-06-03 | 2008-06-03 | Ball and roller bearing for e.g. crankshaft of motor vehicle, has slots formed between profiled pin sections, which are extended in middle regions radial to extent of outer diameter of ring sections |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008026562A1 true DE102008026562A1 (en) | 2009-12-10 |
Family
ID=41268677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008026562A Ceased DE102008026562A1 (en) | 2008-06-03 | 2008-06-03 | Ball and roller bearing for e.g. crankshaft of motor vehicle, has slots formed between profiled pin sections, which are extended in middle regions radial to extent of outer diameter of ring sections |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008026562A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011085716A1 (en) | 2011-11-03 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Radial cage e.g. needle bearing cage for cylindrical rolling elements, has profile rollers and side rings that are arranged, such that material thicknesses of rollers are smaller than thickness of side portions of axial webs |
DE102011085713A1 (en) | 2011-11-03 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Radial cage for cylindrical rolling body, particularly needle ring cage, has two side rings defining axial extension of radial cage and multiple profiled axial bars connected with each other at outer diameters of side rings |
US8926191B2 (en) | 2010-05-03 | 2015-01-06 | Schaeffler Technologies AG & Co. KG | Axial cage for cylindrical rolling elements |
JP2015064108A (en) * | 2009-06-15 | 2015-04-09 | コーヨー ベアリングス ノース アメリカ エルエルシー | Cage for bearing assembly |
CN104541078A (en) * | 2012-08-31 | 2015-04-22 | Skf公司 | Rolling bearing cage for controlling the position of rolling elements between an inner and an outer raceway in a rolling bearing and method for manufacturing a rolling bearing cage |
JP2015092088A (en) * | 2013-10-04 | 2015-05-14 | 日本精工株式会社 | Cage for radial roller bearing, and radial roller bearing |
DE102014224211A1 (en) * | 2014-11-27 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | Rolling bearing cage |
EP3693626A4 (en) * | 2017-09-20 | 2021-09-22 | NTN Corporation | Retainer for rolling bearing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223432A1 (en) | 2002-05-25 | 2003-12-04 | Ina Schaeffler Kg | Cage for needle bearing has end rings connected by axial bars which have raised end and central sections connected by lowered sections and sloping sections |
EP1262256B1 (en) | 2001-05-30 | 2004-07-07 | INA- Schaeffler KG | Roller bearing cage |
-
2008
- 2008-06-03 DE DE102008026562A patent/DE102008026562A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1262256B1 (en) | 2001-05-30 | 2004-07-07 | INA- Schaeffler KG | Roller bearing cage |
DE10223432A1 (en) | 2002-05-25 | 2003-12-04 | Ina Schaeffler Kg | Cage for needle bearing has end rings connected by axial bars which have raised end and central sections connected by lowered sections and sloping sections |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015064108A (en) * | 2009-06-15 | 2015-04-09 | コーヨー ベアリングス ノース アメリカ エルエルシー | Cage for bearing assembly |
US8926191B2 (en) | 2010-05-03 | 2015-01-06 | Schaeffler Technologies AG & Co. KG | Axial cage for cylindrical rolling elements |
DE102011085716A1 (en) | 2011-11-03 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Radial cage e.g. needle bearing cage for cylindrical rolling elements, has profile rollers and side rings that are arranged, such that material thicknesses of rollers are smaller than thickness of side portions of axial webs |
CN103089820A (en) * | 2011-11-03 | 2013-05-08 | 谢夫勒科技股份两合公司 | Radial cage for cylindrical roller body, especially needle bearing cage |
DE102011085713A1 (en) | 2011-11-03 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Radial cage for cylindrical rolling body, particularly needle ring cage, has two side rings defining axial extension of radial cage and multiple profiled axial bars connected with each other at outer diameters of side rings |
US8702315B2 (en) | 2011-11-03 | 2014-04-22 | Schaeffler Technologies AG & Co. KG | Radial cage for cylindrical roller bodies |
US8714833B2 (en) | 2011-11-03 | 2014-05-06 | Schaeffler Technologies AG & Co. KG | Radial cage for cylindrical roller bodies |
CN103089820B (en) * | 2011-11-03 | 2017-12-19 | 舍弗勒技术股份两合公司 | For the radial direction retainer of cylindrical rolling element, especially needle bearing cage |
CN104541078A (en) * | 2012-08-31 | 2015-04-22 | Skf公司 | Rolling bearing cage for controlling the position of rolling elements between an inner and an outer raceway in a rolling bearing and method for manufacturing a rolling bearing cage |
JP2015092088A (en) * | 2013-10-04 | 2015-05-14 | 日本精工株式会社 | Cage for radial roller bearing, and radial roller bearing |
DE102014224211A1 (en) * | 2014-11-27 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | Rolling bearing cage |
EP3693626A4 (en) * | 2017-09-20 | 2021-09-22 | NTN Corporation | Retainer for rolling bearing |
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