DE102004035587A1 - Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces - Google Patents
Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces Download PDFInfo
- Publication number
- DE102004035587A1 DE102004035587A1 DE200410035587 DE102004035587A DE102004035587A1 DE 102004035587 A1 DE102004035587 A1 DE 102004035587A1 DE 200410035587 DE200410035587 DE 200410035587 DE 102004035587 A DE102004035587 A DE 102004035587A DE 102004035587 A1 DE102004035587 A1 DE 102004035587A1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- ring
- rings
- bevel gear
- bearings
- 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
- 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
- F16C19/16—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 a single row of balls
- F16C19/163—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 a single row of balls with angular contact
- F16C19/166—Four-point-contact 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
- 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
- F16C19/36—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 a single row of rollers
- F16C19/361—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 a single row of rollers with cylindrical rollers
- F16C19/362—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 a single row of rollers with cylindrical rollers the rollers being crossed within the single row
-
- 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
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/55—Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Anwendungsgebiet der ErfindungField of application of the invention
Die Erfindung betrifft ein Mehrringlager, insbesondere Dreiringlager, mit konzentrisch ineinander angeordneten Lagerringen, zwischen denen auf zugehörigen Laufbahnen Wälzkörper abrollen.The The invention relates to a multi-ring bearing, in particular three-ring bearing, with concentrically arranged bearing rings between which on associated Roll raceways rolling elements.
Hintergrund der Erfindungbackground the invention
Derartige
Mehrringlager, die wenigstens aus drei konzentrisch ineinander angeordneten
Lagerringen bestehen, zwischen denen auf zugehörigen Laufbahnen Wälzkörper abrollen,
sind schon seit längerem
vorbekannt. Sie wurden als Sonderlager für besondere Anwendungsfälle speziell
entwickelt und weichen von genormten oder Standard- Lagern maßlich ab
oder beziehen zusätzliche
Elemente und Funktionen der Einbaustelle in die Wälzlagerbaueinheit
mit ein. So gibt es Sonderlager mit Flanschen, integrierten Naben,
Sonderabdichtungen, integrierten Riemenscheiben und Ummantelungen
unterschiedlichster Art. Derartige Mehrringlager sind beispielsweise
aus nachstehenden Vorveröffentlichungen
bekannt geworden:
In diesem Zusammenhang ist es auch bekannt, dass speziell in Industrierobotern derartige Mehrringlager in Gelenken eingesetzt werden. Sie dienen zur eindeutigen räumlichen Positionierung von Roboterarmen, beispielsweise zur Positionierung von Sprühpistolen in Lackieranlagen oder zur Positionierung von Schweißelektroden in automatischen Schweißanlagen. Dabei werden verzahnte Kegelräder unterschiedlicher Größe konzentrisch ineinander drehbar über Wälzlager angeordnet, wobei jedes der verzahnten Kegelräder über einen getrennten Stellantrieb bewegbar ist. Durch das Zusammenwirken der Kegelräder mit den Stellantrieben und den notwendigen Anschlussteilen wird eine genaue räumliche Positionierung eines damit verbundenen Werkzeuges erreicht.In In this context it is also known that especially in industrial robots Such multi-ring bearings are used in joints. They serve to the clear spatial Positioning of robot arms, for example for positioning of spray guns in paint shops or for the positioning of welding electrodes in automatic welding systems. This will be toothed bevel gears different size concentric rotatable about each other roller bearing arranged, each of the toothed bevel gears via a separate actuator is movable. Due to the interaction of the bevel gears with the actuators and the necessary connection parts is a exact spatial Positioning of an associated tool achieved.
Die Verbindung von mehreren verzahnten Kegelrädern mit handelsüblichen Wälzlagern zu einer Baueinheit ist jedoch mit mehreren Nachteilen behaftet. Erstens sind zur Verbindung von Kegelrädern und Wälzlagern Verbindungselemente, beispielsweise Befestigungsschrauben, erforderlich, die den Montageaufwand erhöhen. Zweitens werden aus Platzgründen oftmals Dünnringlager eingesetzt, die im Verhältnis zum Lagerdurchmesser einen sehr kleinen Querschnitt aufweisen. Diese Dünnringlager erfordern jedoch einen aufwendige mechanische Bearbeitung der entsprechenden Lagersitze an den Kegelrädern, damit sie exakt arbeiten. Drittens sind schließlich zur genauen Einstellung der Kegelradverzahnungen zueinander unterschiedlich ausgelegte Passscheiben erforderlich, die die gesamte Baueinheit nochmals komplizieren und damit verteuern.The Connection of several toothed bevel gears with commercial ones roller bearings to a unit but has several disadvantages. Firstly, connecting elements of bevel gears and rolling bearings are For example, fixing screws, required, the installation cost increase. Second, for reasons of space often thin ring bearings used that in proportion have a very small cross-section to the bearing diameter. These Thin section bearings However, require a complex mechanical processing of the corresponding Bearing seats on the bevel gears, so they work exactly. Third, finally, to the exact setting the bevel gears to each other differently designed shims required, which complicate the entire unit again and make it more expensive.
Zwar sind dem Fachmann in diesem Zusammenhang auch schon mit einer Verzahnung versehene Lagerringe vorbekannt. Diese werden in sog. Wälzlager-Drehverbindungen, d.h., in Großlagern eingesetzt. Solche Wälzlager-Drehverbindungen werden als Schwenklager für die Abstützung von Baggern, Kränen, im Fahrzeugbau für Gelenkbusse bzw. Straßenbahnen und in Windkraftanlagen eingesetzt, d. h., in Einsatzgebieten, bei denen bei begrenztem Einbauraum hohe Belastungen auftreten und die eine hohe Betriebssicherheit verlangen. Diese Drehverbindungen können Axialkräfte, Radialkräfte und Kippmomente aufnehmen.Though are the expert in this context even with a toothing provided bearing rings previously known. These are in so-called. Rolling bearing slewing, that is, used in large-scale warehouses. Such rolling bearing slewing rings are as a pivot bearing for the support of excavators, cranes, in vehicle construction for Articulated buses or trams and used in wind turbines, d. h., in applications, at which occur in a limited installation space high loads and the require a high level of operational safety. These rotary joints can be axial, radial and Take up tilting moments.
Eine
solche Drehverbindung geht aus der
Zusammenfassung der ErfindungSummary the invention
Ausgehend von den Mängeln des bekannten Standes der Technik liegt der Erfindung daher die Aufgabe zugrunde, ein Mehrringlager bereitzustellen, welches sich im Zusammenspiel mit Kegelrädern einfach herstellen und montieren lässt.outgoing from the defects of the known prior art, the invention is therefore the task to provide a multi-ring bearing, which interacts with bevel gears easy to manufacture and assemble.
Erfindungsgemäß wird diese Aufgabe nach dem kennzeichnenden Teil von Anspruch 1 in Verbindung mit dessen Oberbegriff dadurch gelöst, dass wenigstens einer der Lagerringe an einer Stirnseite mit einer Kegelradverzahnung versehen ist.According to the invention this Task according to the characterizing part of claim 1 in conjunction solved with the preamble in that at least one of Bearing rings on one end face provided with bevel gear teeth is.
Das Verbinden von Lagerring mit Kegelradverzahnung, d. h., die Bildung einer einstückigen Baueinheit hat nachstehende Vorteile:
- – wenige Bauteile bedeuten weniger Fugen und weniger Schraubverbindungen.
- – Das aufwendige mechanische Bearbeiten von Lagersitzen ist entbehrlich.
- – Das exakte Einstellen der Kegelradverzahnung durch Passscheiben unterschiedlicher Ausdehnung kann entfallen.
- – Durch die Baueinheit von Lagerring und Kegelverzahnung wird die Formstabilität des Bauteils und damit auch der Anschlußkonstruktion vergrößert.
- - few components mean fewer joints and fewer screw connections.
- - The complex mechanical machining of bearing seats is unnecessary.
- - The exact adjustment of the bevel gear by shims of different dimensions can be omitted.
- - Through the assembly of bearing ring and conical toothing, the dimensional stability of the component and thus also the connecting structure is increased.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 bis 7 beschrieben.Further advantageous embodiments of the invention are in the dependent claims 2 to 7 described.
So ist nach Anspruch 2 vorgesehen, dass wenigstens einer der Lagerringe mit einer axialen Verlängerung versehen ist, an der die Kegelradverzahnung angeordnet ist. Durch diese Verlängerung lässt sich die Verzahnung in einfacher Weise am entsprechenden Lagerring anbringen.So is provided according to claim 2, that at least one of the bearing rings with an axial extension is provided, on which the bevel gear is arranged. By this extension can be attach the teeth in a simple manner to the corresponding bearing ring.
Nach einem weiteren Merkmal der Erfindung gemäß Anspruch 3 soll der Innen- und/oder der Außenring mit einem radialen Flansch versehen sein, in dem Durchbrüche zur Verbindung mit einer Anschlusskonstruktion angeordnet sind. Auf diese Weise ist es möglich, den entsprechenden Lagerring einschließlich Kegelradverzahnung in einfacher Weiser mit einer Anschlusskonstruktion zu verbinden.To a further feature of the invention according to claim 3, the inner and / or the outer ring be provided with a radial flange in the openings for Connection are arranged with a connecting structure. On this way it is possible the corresponding bearing ring including bevel gear teeth in easy way to connect with a connecting structure.
Nach einem weiteren Merkmal gemäß Anspruch 4 ist vorgesehen, dass das Mehrringlager als ein Vierpunktlager oder als ein Kreuzrollenlager ausgebildet ist.To a further feature according to claim 4 it is envisaged that the multi-ring bearing as a four-point bearing or is designed as a cross roller bearing.
Vierpunktlager haben am Innenring und am Außenring je zwei kreisbogenförmige Laufbahnen, deren Krümmungsmittelpunkte so gegeneinander versetzt sind, dass die Kugeln die Laufringe bei radialer Belastung in vier Punkten berühren. Diese Lager sind insbesondere für wechselnde, rein axiale Belastung oder überwiegende Axiallast geeignet. Dabei berühren die Kugel den Innen- und Außenring nur an je einen Punkt, wie in einem axial belasteten einreihigen Schrägkugellager. Die Druckwinkel des Vierpunktlagers sind gewöhnlich groß, so dass es hohe axiale Kräfte in beiden Richtungen aufnehmen kann. Kreuzrollenlager bestehen aus einem Innenring, einem Außenring und dazwischen auf zugehörigen Laufbahnen abwälzenden Zylinderrollen, von denen jeweils auf einander folgende unter 90° zueinander gekreuzte Achsen aufweisen. Solche Lager nehmen beidseitig axiale Kräfte so wie radiale Kräfte und Kippmomente auf.Four point contact bearings have on the inner ring and on the outer ring two circular arc-shaped each Raceways whose centers of curvature are offset from each other so that the balls at the races Touch radial load in four points. These bearings are particular for changing, purely axial load or predominant Axial load suitable. Touch it the ball the indoor and outer ring only one point at a time, as in an axially loaded one-row Angular contact ball bearings. The pressure angles of the four-point bearing are usually large, so that there are high axial forces in both Can accommodate directions. Cross roller bearings consist of an inner ring, an outer ring and in between on related careers rolling off Cylindrical rollers, of which each subsequent to each other at 90 ° crossed Have axes. Such bearings take on both sides axial forces as well radial forces and overturning moments.
Aus Anspruch 5 geht hervor, dass wenigstens einer der Lagerringe mit einer Referenzfläche zur Bearbeitung der Wälzkörperlaufbahn und der Kegelradverzahnung versehen ist, wobei nach Anspruch 6 vorgesehen ist, dass diese Referenzfläche eine innere Mantelfläche und eine Stirnfläche eines Lagerringes ist. Diese Referenzflächen werden als Ausgangspunkt für die getrennte Fertigung der Wälzkörperlaufbahnen und der Kegelverzahnung genutzt, so dass das Teil in gleicher Aufspannung kostengünstig und präzise bearbeitet werden kann.Out Claim 5 shows that at least one of the bearing rings with a reference surface for Machining the rolling element raceway and the bevel gear, is provided according to claim 6 is that this reference surface is a inner jacket surface and an end face a bearing ring is. These reference areas are used as a starting point for the separate production of Wälzkörperlaufbahnen and the bevel gear used so that the part in the same clamping economical and precise can be edited.
Schließlich ist nach einem letzten Merkmal gemäß Anspruch 7 vorgesehen, dass das Mehrringlager paarweise in einem Gelenk für einen Industrieroboter, beispielsweise in einem Armgelenk für Spritzpistolen eines Lackierautomaten, eingesetzt ist.Finally is according to a last feature according to claim 7 provided that the multi-ring bearing in pairs in a joint for a Industrial robots, for example in a wrist joint for spray guns a Lackierautomaten, is used.
Die Erfindung wird an nachstehenden Ausführungsbeispielen näher erläutert.The Invention will be explained in more detail in the following embodiments.
Kurze Beschreibung der ZeichnungenShort description the drawings
Die
Ausführliche Beschreibung der ZeichnungenFull Description of the drawings
Das
in
Das
in
- 11
- DreiringlagerThree-ring bearing
- 22
- LagerinnenringBearing inner ring
- 2.12.1
- axiale Verlängerungaxial renewal
- 2.22.2
- Kegelradverzahnungbevel gear
- 2.32.3
- radialer Flanschradial flange
- 2.42.4
- Durchbruchbreakthrough
- 2.52.5
- Stirnflächeface
- 2.62.6
- innere Mantelflächeinner lateral surface
- 33
- LageraußenringBearing outer ring
- 3.13.1
- axiale Verlängerungaxial renewal
- 3.23.2
- Kegelradverzahnungbevel gear
- 3.33.3
- radialer Flanschradial flange
- 3.43.4
- Durchbruchbreakthrough
- 3.53.5
- Stirnflächeface
- 3.63.6
- innere Mantelflächeinner lateral surface
- 44
- Zwischenringintermediate ring
- 4.14.1
- axiale Verlängerungaxial renewal
- 4.24.2
- Kegelradverzahnungbevel gear
- 4.34.3
- Durchbruchbreakthrough
- 55
- KäfigCage
- 66
- KäfigCage
- 77
- Lagerkugelbearing ball
- 88th
- Lagerkugelbearing ball
- 99
- Achseaxis
- 1010
- DreiringlagerThree-ring bearing
- 1111
- Zylinderrollecylindrical roller
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410035587 DE102004035587A1 (en) | 2004-07-22 | 2004-07-22 | Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410035587 DE102004035587A1 (en) | 2004-07-22 | 2004-07-22 | Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004035587A1 true DE102004035587A1 (en) | 2006-02-09 |
Family
ID=35612923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410035587 Ceased DE102004035587A1 (en) | 2004-07-22 | 2004-07-22 | Bearing has three rings, between which ball bearings or rollers are mounted, rings having bevel gear toothing on their faces |
Country Status (1)
Country | Link |
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DE (1) | DE102004035587A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007122181A1 (en) * | 2006-04-21 | 2007-11-01 | Schaeffler Kg | Handling device |
DE102007013826A1 (en) * | 2007-03-22 | 2008-09-25 | Rolls-Royce Deutschland Ltd & Co Kg | Thrust bearing with a radially inner and a radially outer rolling bearing |
WO2009053270A1 (en) * | 2007-10-23 | 2009-04-30 | Schaeffler Kg | Manipulator having a three-ring bearing between two outer pivot arms and a platform |
WO2010037370A1 (en) * | 2008-09-30 | 2010-04-08 | Schaeffler Kg | Rotational connection, in particular rolling bearing comprising three concentric bearing rings and rolling body rows with intersecting bearing lines, or four-point contact ball bearings, for a wind turbine |
WO2015057126A1 (en) * | 2013-10-17 | 2015-04-23 | Aktiebolaget Skf | Wind turbine rotor bearing arrangement |
US11035405B2 (en) | 2019-04-30 | 2021-06-15 | Aktiebolaget Skf | Rolling bearing comprising three concentric rings |
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---|---|---|---|---|
DE107885C (en) * | ||||
DD49729A (en) * | ||||
DE402575C (en) * | 1922-08-27 | 1924-09-16 | Erich Pansegrau Dipl Ing | Thrust bearing with two or more rows of balls |
FR975720A (en) * | 1948-12-01 | 1951-03-08 | Speed multiplier mechanism for reciprocating bicycle wheel hub | |
DD59440A (en) * | 1965-07-03 | 1967-12-20 | Hermann Klemt | BEARING ARRANGEMENT |
DE1622154A1 (en) * | 1968-01-19 | 1970-12-03 | Vni Kt I | Rolling bearings for suspension axes of precision mechanical devices, especially gyroscopes |
DD120524A1 (en) * | 1975-08-18 | 1976-06-12 | ||
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DE3740805A1 (en) * | 1986-12-18 | 1988-06-30 | Skf Gmbh | Multi-ring bearing consisting of at least two rolling bearings arranged radially one above the other |
JPH05231424A (en) * | 1992-02-24 | 1993-09-07 | Shinagawa Tsushin Keiso Service:Yugen | Bearing mechanism for fine turning angle |
DE9410511U1 (en) * | 1994-06-29 | 1994-08-11 | Skf Gmbh | Three ring bearing |
DE19603701A1 (en) * | 1996-02-02 | 1997-08-07 | Fag Aircraft Gmbh | Three-ring rolling contact bearing with straddled rotating intermediate ring |
DE19608672A1 (en) * | 1996-03-06 | 1997-09-11 | Skf Gmbh | Rolling bearings for rollers |
JPH1137151A (en) * | 1997-07-22 | 1999-02-09 | Ntn Corp | Multistage bearing unit |
DE19746987A1 (en) * | 1997-10-24 | 1999-05-06 | Fag Oem & Handel Ag | Four-ring eccentric bearings for printing press rollers |
WO2000057071A1 (en) * | 1999-03-23 | 2000-09-28 | General Scanning, Inc. | Long-lived rotary ball bearing for reciprocating applications and method of lubricating same |
JP2004028111A (en) * | 2002-06-10 | 2004-01-29 | Rigaku Industrial Co | Bearing mechanism for analyzer |
-
2004
- 2004-07-22 DE DE200410035587 patent/DE102004035587A1/en not_active Ceased
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Publication number | Priority date | Publication date | Assignee | Title |
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DE107885C (en) * | ||||
DD49729A (en) * | ||||
DE402575C (en) * | 1922-08-27 | 1924-09-16 | Erich Pansegrau Dipl Ing | Thrust bearing with two or more rows of balls |
FR975720A (en) * | 1948-12-01 | 1951-03-08 | Speed multiplier mechanism for reciprocating bicycle wheel hub | |
DD59440A (en) * | 1965-07-03 | 1967-12-20 | Hermann Klemt | BEARING ARRANGEMENT |
DE1497256B2 (en) * | 1965-07-22 | 1977-05-18 | Sperry Rand Corp., New York, N.Y. (V-StA.) | DEVICE FOR PERIODIC REVERSAL OF THE DIRECTION OF ROTATION OF A ROTARY DRIVE FOR THE MIDDLE OF THREE CONCENTRICALLY NEXT RING RINGS OF A ROLLER BEARING |
DE1622154A1 (en) * | 1968-01-19 | 1970-12-03 | Vni Kt I | Rolling bearings for suspension axes of precision mechanical devices, especially gyroscopes |
DD120524A1 (en) * | 1975-08-18 | 1976-06-12 | ||
DE2648144C2 (en) * | 1976-10-23 | 1984-07-05 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Center-free rolling bearing slewing ring |
DE3436242A1 (en) * | 1984-10-03 | 1986-04-03 | Heyligenstaedt & Co, Werkzeugmaschinenfabrik Gmbh, 6300 Giessen | Rolling bearing and a double facing lathe fitted with such a bearing |
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DE3740805A1 (en) * | 1986-12-18 | 1988-06-30 | Skf Gmbh | Multi-ring bearing consisting of at least two rolling bearings arranged radially one above the other |
JPH05231424A (en) * | 1992-02-24 | 1993-09-07 | Shinagawa Tsushin Keiso Service:Yugen | Bearing mechanism for fine turning angle |
DE9410511U1 (en) * | 1994-06-29 | 1994-08-11 | Skf Gmbh | Three ring bearing |
DE19603701A1 (en) * | 1996-02-02 | 1997-08-07 | Fag Aircraft Gmbh | Three-ring rolling contact bearing with straddled rotating intermediate ring |
DE19608672A1 (en) * | 1996-03-06 | 1997-09-11 | Skf Gmbh | Rolling bearings for rollers |
JPH1137151A (en) * | 1997-07-22 | 1999-02-09 | Ntn Corp | Multistage bearing unit |
DE19746987A1 (en) * | 1997-10-24 | 1999-05-06 | Fag Oem & Handel Ag | Four-ring eccentric bearings for printing press rollers |
WO2000057071A1 (en) * | 1999-03-23 | 2000-09-28 | General Scanning, Inc. | Long-lived rotary ball bearing for reciprocating applications and method of lubricating same |
JP2004028111A (en) * | 2002-06-10 | 2004-01-29 | Rigaku Industrial Co | Bearing mechanism for analyzer |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007122181A1 (en) * | 2006-04-21 | 2007-11-01 | Schaeffler Kg | Handling device |
DE102007013826A1 (en) * | 2007-03-22 | 2008-09-25 | Rolls-Royce Deutschland Ltd & Co Kg | Thrust bearing with a radially inner and a radially outer rolling bearing |
WO2009053270A1 (en) * | 2007-10-23 | 2009-04-30 | Schaeffler Kg | Manipulator having a three-ring bearing between two outer pivot arms and a platform |
US8628290B2 (en) | 2007-10-23 | 2014-01-14 | Schaeffler Technologies AG & Co. KG | Manipulator having a three-ring bearing between two outer pivot arms and a platform |
WO2010037370A1 (en) * | 2008-09-30 | 2010-04-08 | Schaeffler Kg | Rotational connection, in particular rolling bearing comprising three concentric bearing rings and rolling body rows with intersecting bearing lines, or four-point contact ball bearings, for a wind turbine |
WO2015057126A1 (en) * | 2013-10-17 | 2015-04-23 | Aktiebolaget Skf | Wind turbine rotor bearing arrangement |
US11035405B2 (en) | 2019-04-30 | 2021-06-15 | Aktiebolaget Skf | Rolling bearing comprising three concentric rings |
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