DE20306004U1 - Sealed rolling element bearing, for e.g. fuel pump, includes running surfaces with wear-resistant coating lubricated by grease which is not soluble in fuel - Google Patents
Sealed rolling element bearing, for e.g. fuel pump, includes running surfaces with wear-resistant coating lubricated by grease which is not soluble in fuelInfo
- Publication number
- DE20306004U1 DE20306004U1 DE20306004U DE20306004U DE20306004U1 DE 20306004 U1 DE20306004 U1 DE 20306004U1 DE 20306004 U DE20306004 U DE 20306004U DE 20306004 U DE20306004 U DE 20306004U DE 20306004 U1 DE20306004 U1 DE 20306004U1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- inner ring
- grease
- wear
- outer ring
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/50—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing halogen
- C10M105/54—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing halogen containing carbon, hydrogen, halogen and oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/38—Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
-
- 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
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the 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
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
-
- 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
- F16C33/64—Special methods of manufacture
-
- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6633—Grease properties or compositions, e.g. rheological properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/06—Perfluorinated compounds
- C10M2211/063—Perfluorinated compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/0606—Perfluoro polymers used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/34—Lubricating-sealants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
-
- 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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Paints Or Removers (AREA)
Abstract
Description
• ··
• ··
AB SKF Schweinfurt, 11.4. 2003AB SKF Schweinfurt, 11.4. 2003
DE 03 008 DE STP-go.neDE 03 008 DE STP-go.ne
BeschreibungDescription
Die Erfindung betrifft eine Lageranordnung, die ein Lager umfasst, bestehend aus einem Innenring mit einer Laufbahn für Wälzkörper, einem Außenring mit einer Laufbahn für Wälzkörper und zwischen den Ringen angeordneten Wälzkörpern, sowie eine Dichtungsanordnung, die den Raum zwischen Innenring und Außenring gegen die Umgebung abdichtet.The invention relates to a bearing arrangement comprising a bearing consisting of an inner ring with a raceway for rolling elements, an outer ring with a raceway for rolling elements and rolling elements arranged between the rings, as well as a sealing arrangement which seals the space between the inner ring and the outer ring against the environment.
Wälzlager für spezielle Anwendungen, z. B. für Benzinpumpen etc., müssen in einer aggressiven Umgebung zuverlässig arbeiten können. Die aggressive Umgebung kann dadurch entstehen, dass sich Treibstoffe wie Benzin, Diesel, Kerosin etc., nicht vom Lagerbereich fernhalten lassen; das Lager muss daher möglichst resistent gegen die aggressiven Medien sein.Rolling bearings for special applications, e.g. for petrol pumps etc., must be able to work reliably in an aggressive environment. The aggressive environment can arise because fuels such as petrol, diesel, kerosene etc. cannot be kept away from the bearing area; the bearing must therefore be as resistant as possible to the aggressive media.
Im Stand der Technik hinlänglich bekannt sind daher abgedichtete Wälzlager. Der Raum zwischen Innenring und Außenring, in dem die Wälzkörper angeordnet sind, wird hier durch Dichtscheiben abgedichtet, die an den beiden axialen Enden der Lagerringe angeordnet sind. Hierdurch kann zwar der Lagerinnenraum durchaus effizient gegen diverse Verunreinigungen abgedichtet werden, allerdings ist dies nicht möglich, wenn das Lager in derSealed rolling bearings are therefore well known in the state of the art. The space between the inner ring and the outer ring, in which the rolling elements are arranged, is sealed by sealing disks that are arranged at the two axial ends of the bearing rings. This means that the interior of the bearing can be sealed efficiently against various contaminants, but this is not possible if the bearing is in the
Umgebung eines leicht flüchtigen Mediums, wie beispielsweise Benzin, arbeiten muss. Es ist dann meist nicht zu verhindern, dass das aggressive Medium ins Lagerinnere eindringt.environment of a highly volatile medium, such as petrol. It is then usually impossible to prevent the aggressive medium from penetrating the interior of the bearing.
Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Lageranordnung derart weiterzubilden, dass das Lager eine erhöhte Resistenz gegen aggressive Medien, insbesondere gegen Treibstoffe (Benzin, Diesel, Kerosin etc.), aufweist. Damit soll einer Lageranordnung, die im Einflussbereich eines solch aggressiven Mediums arbeiten muss, eine höhere Standzeit verliehen werden.The invention is based on the object of developing a generic bearing arrangement in such a way that the bearing has increased resistance to aggressive media, in particular to fuels (petrol, diesel, kerosene, etc.). This is intended to give a bearing arrangement that has to work in the area of influence of such an aggressive medium a longer service life.
Die Lösung dieser Aufgabe durch die Erfindung ist durch eine gattungsgemäße Lagerkonzeption mit einer Dichtungsanordnung, die den Raum zwischen Innenring und Außenring gegen die Umgebung abdichtet, gekennzeichnet, bei der weiterhin vorgesehen ist, dass die Oberflächen der Laufbahnen des Innenrings und des Außenrings mit einer verschleißmindernden Schicht versehen sind und dass im Raum zwischen dem Innenring und dem Außenring als Schmiermittel ein Fett angeordnet ist, das in Treibstoffen, insbesondere in Benzin, Kerosin und Dieselöl, unlöslich ist. Bevorzugt ist das Fett ein solches auf der Basis von Perfluoralkylether (PFAE).The solution to this problem by the invention is characterized by a generic bearing concept with a sealing arrangement that seals the space between the inner ring and the outer ring against the environment, in which it is further provided that the surfaces of the raceways of the inner ring and the outer ring are provided with a wear-reducing layer and that a grease that is insoluble in fuels, in particular in gasoline, kerosene and diesel oil, is arranged as a lubricant in the space between the inner ring and the outer ring. The grease is preferably one based on perfluoroalkyl ether (PFAE).
Es hat sich in überraschender Weise gezeigt, dass die Kombination der drei MaßnahmenIt has been surprisingly shown that the combination of the three measures
- Abdichtung des Innenraums des Lagers gegen die Umgebung,- Sealing the interior of the warehouse against the environment,
- Versehen der Laufbahnoberflächen mit einer verschleißmindernden Schicht und- Providing the raceway surfaces with a wear-reducing layer and
- Einbringen von Fett vorzugsweise auf der Basis von Perfluoralkylether in den Raum zwischen dem Innenring und dem Außenring,- Introduction of grease, preferably based on perfluoroalkyl ether, into the space between the inner ring and the outer ring,
eine besonders hohe Resistenz des Lagers gegen leicht flüchtige und aggressive Medien wie Treibstoffe zur Folge hat.This results in the bearing being particularly resistant to volatile and aggressive media such as fuels.
Gemäß einer ersten Weiterbildung ist vorgesehen, dass die Dichtungsanordnung am Außen- oder Innenring befestigt ist und mit einer oder mehreren Dichtlippen am Innen- oder Außenring berührend anliegt; insoweit handelt es sich um eine reibende Dichtungsanordnung. Alternativ dazu kann auch vorgesehen werden, dass die Dichtungsanordnung am Außenoder Innenring befestigt ist und einen Spalt zum Innen- oder Außenring bildet; in diesem Falle reibt die Dichtung also nicht, sondern schafft den Dichteffekt über ein "Labyrinth". Die Dichtung muss das Schmiermittel im Lager halten; im übrigen dichtet sie auch gegen Umwelteinflüsse ab.According to a first development, the sealing arrangement is attached to the outer or inner ring and is in contact with the inner or outer ring with one or more sealing lips; in this respect, it is a friction sealing arrangement. Alternatively, the sealing arrangement can also be attached to the outer or inner ring and forms a gap to the inner or outer ring; in this case, the seal does not rub, but creates the sealing effect via a "labyrinth". The seal must keep the lubricant in the bearing; it also seals against environmental influences.
Hinsichtlich der speziellen Behandlung der Laufbahnoberfläche, mit der diese resistent gegen Verschleiß gemacht werden kann, ist weiterbildungsgemäß vorgesehen, dass die Laufbahnoberfläche carburiert oder carbonitriert ist. Weiterhin ist es möglich, dass die Oberflächen der Laufbahnen eine Diamant-Beschichtung aufweisen.With regard to the special treatment of the raceway surface, which can make it resistant to wear, the further development provides for the raceway surface to be carburized or carbonitrided. It is also possible for the raceway surfaces to have a diamond coating.
Mit dem erfindungsgemäßen Vorschlag wird in besonders einfacher Weise ein gegen aggressive Medien resistentes Lager geschaffen, das sich in preiswerter Weise realisieren lässt.The proposal according to the invention creates a bearing that is resistant to aggressive media in a particularly simple manner and can be implemented in a cost-effective manner.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:An embodiment of the invention is shown in the drawing. It shows:
Figur 1 den Schnitt durch ein Kugellager undFigure 1 shows the section through a ball bearing and
Figur 2 den Lagerinnenring mit der Laufbahn für die Kugeln im Detail.Figure 2 shows the bearing inner ring with the raceway for the balls in detail.
Das Lager 1 weist einen Innenring 2 und einen Außenring 5 auf, zwischen denen Wälzkörper 4 in Form von Kugeln angeordnet sind. Für den präzisen Lauf der Wälzkörper 4 zwischen den Laufbahnen 2, 5 weisen sowohl der Innenring 2 und als auch der Außenring 5 Laufbahnen 3 bzw. 6 auf.The bearing 1 has an inner ring 2 and an outer ring 5, between which rolling elements 4 in the form of balls are arranged. For the precise running of the rolling elements 4 between the raceways 2, 5, both the inner ring 2 and the outer ring 5 have raceways 3 and 6, respectively.
Das Lager 1 weist ferner eine Dichtungsanordnung 7 auf; diese besteht aus zwei scheibenförmigen Dichtungen, die im axialen Endbereich der Ringe 2, 5 angeordnet sind. Dabei ist vorliegend die Dichtscheibe im axialen Endbereich des Außenrings 5 festgelegt; im Kontaktbereich der Dichtung 7 mit dem Innenring 2 weist die Dichtungsanordnung 7 Dichtlippen 9 auf, die den Innenring 2 entweder kontaktieren oder diesen mit engem Spalt umgeben. Im Ausführungsbeispiel ist zu erkennen, dass ein Teil der Dichtlippe 9 reibend am Innenring 2 anliegt und ein anderer Teil der Dichtlippe 9 mit geringem Spalt zum Innenring 2 verläuft. Vorgesehen kann auch sein, dass die Dichtungsanordnung oder die Lagerringe eine Einrichtung zum Druckausgleich zwischen Lagerinnerem und Umgebung U aufweisen, beispielsweise eine Bohrung in der Dichtungsanordnung 7 oder in den Lagerringen 2, 5.The bearing 1 also has a sealing arrangement 7; this consists of two disk-shaped seals that are arranged in the axial end region of the rings 2, 5. In this case, the sealing disk is fixed in the axial end region of the outer ring 5; in the contact area of the seal 7 with the inner ring 2, the sealing arrangement 7 has sealing lips 9 that either contact the inner ring 2 or surround it with a narrow gap. In the exemplary embodiment, it can be seen that part of the sealing lip 9 rests against the inner ring 2 in a frictional manner and another part of the sealing lip 9 runs with a small gap to the inner ring 2. It can also be provided that the sealing arrangement or the bearing rings have a device for pressure equalization between the interior of the bearing and the environment U, for example a bore in the sealing arrangement 7 or in the bearing rings 2, 5.
Wie insbesondere in Figur 2 zu erkennen ist, ist die Oberfläche der Laufbahnen 3, 6 von Innen- bzw. Außenring 2, 5 mit einer verschleißmindernden Schicht 8 versehen. Diese kann durch einenAs can be seen in particular in Figure 2, the surface of the raceways 3, 6 of the inner and outer rings 2, 5 is provided with a wear-reducing layer 8. This can be achieved by a
Wärmebehandlungsvorgang oder durch eine separate Maßnahme hergestellt werden. Im erstgenannten Fall kann beispielsweise eine Carbonitrierung oder Carburierung des Oberflächenbereichs der Laufbahn durchgeführt werden. Geeignet für eine Behandlung der Oberfläche der Laufbahn ist auch ein unter der Bezeichnung SQS (Sequential Quenching Stabilisation) bekannter Wärmebehandlungsprozess. Möglich ist es auch, die Verschleißresistenz der Oberfläche der Laufbahnen durch Beschichtung derselben mit einer dünnen Diamantschicht zu bewerkstelligen. Die jeweiligen Maßnahmen sind im Stand der Technik hinlänglich bekannt und bedürfen daher hier keiner weiteren Ausführung.Heat treatment process or by a separate measure. In the former case, for example, carbonitriding or carburizing of the surface area of the raceway can be carried out. A heat treatment process known as SQS (Sequential Quenching Stabilization) is also suitable for treating the surface of the raceway. It is also possible to make the surface of the raceways wear-resistant by coating it with a thin layer of diamond. The respective measures are well known in the state of the art and therefore do not require any further explanation here.
Der Raum zwischen Innenring 2, Außenring 5 und Dichtungsanordnung 7 ist mit Schmierfett auf der Basis von Perfluoralkylether (PFAE) zumindest teilweise gefüllt. Derartiges Fett ist im Stand der Technik ebenfalls bekannt.The space between inner ring 2, outer ring 5 and sealing arrangement 7 is at least partially filled with lubricating grease based on perfluoroalkyl ether (PFAE). Such grease is also known in the prior art.
Im Zusammenwirken der vorgeschlagenen Maßnahmen ergibt sich eine einfach aufgebaute und preiswerte Lagerung, die insbesondere gegen Benzin und Diesel sowie andere leicht flüchtige Treibstoffe besonders resistent ist.The combination of the proposed measures results in a simple and inexpensive storage facility that is particularly resistant to petrol and diesel as well as other volatile fuels.
AB SKF Schweinfurt, 11.4. 2003AB SKF Schweinfurt, 11.4. 2003
DE 03 008 DE STP-go.neDE 03 008 DE STP-go.ne
U UmgebungU Environment
PFAE PerfluoralkyletherPFAE Perfluoroalkyl ethers
Claims (7)
ein Lager (1), bestehend aus einem Innenring (2) mit einer Laufbahn (3) für Wälzkörper (4), einem Außenring (5) mit einer Laufbahn (6) für Wälzkörper (4) und zwischen den Ringen angeordneten Wälzkörpern (4), sowie
eine Dichtungsanordnung (7), die den Raum zwischen Innenring (2) und Außenring (5) gegen die Umgebung (U) abdichtet,
wobei die Oberflächen der Laufbahnen (3, 6) des Innenrings (2) und des Außenrings (5) mit einer verschleißmindernden Schicht (8) versehen sind und
wobei im Raum zwischen dem Innenring (2) und dem Außenring (5) als Schmiermittel ein Fett angeordnet ist, das in Treibstoffen, insbesondere in Benzin, Kerosin und Dieselöl, unlöslich ist. 1. Bearing arrangement comprising:
a bearing ( 1 ) comprising an inner ring ( 2 ) with a raceway ( 3 ) for rolling elements ( 4 ), an outer ring ( 5 ) with a raceway ( 6 ) for rolling elements ( 4 ) and rolling elements ( 4 ) arranged between the rings, and
a sealing arrangement ( 7 ) which seals the space between the inner ring ( 2 ) and the outer ring ( 5 ) against the environment (U),
wherein the surfaces of the raceways ( 3 , 6 ) of the inner ring ( 2 ) and the outer ring ( 5 ) are provided with a wear-reducing layer ( 8 ) and
wherein in the space between the inner ring ( 2 ) and the outer ring ( 5 ) a grease is arranged as a lubricant, which is insoluble in fuels, in particular in gasoline, kerosene and diesel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20306004U DE20306004U1 (en) | 2003-04-15 | 2003-04-15 | Sealed rolling element bearing, for e.g. fuel pump, includes running surfaces with wear-resistant coating lubricated by grease which is not soluble in fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20306004U DE20306004U1 (en) | 2003-04-15 | 2003-04-15 | Sealed rolling element bearing, for e.g. fuel pump, includes running surfaces with wear-resistant coating lubricated by grease which is not soluble in fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20306004U1 true DE20306004U1 (en) | 2003-07-03 |
Family
ID=7981504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20306004U Expired - Lifetime DE20306004U1 (en) | 2003-04-15 | 2003-04-15 | Sealed rolling element bearing, for e.g. fuel pump, includes running surfaces with wear-resistant coating lubricated by grease which is not soluble in fuel |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE20306004U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006029612A1 (en) * | 2006-06-26 | 2007-12-27 | Grammer Ag | Interior fitting body for use in head rest of vehicle, has film applied on storage part of surface of supporting rod frame and/or storage body, and frame provided with movable storage area, where film contains Perfluoroalkylether |
| WO2012152453A1 (en) * | 2011-05-09 | 2012-11-15 | Schaeffler Technologies AG & Co. KG | Method for improving corrosion protection in rolling bearings and rolling bearings produced according to said method |
| WO2013018865A1 (en) | 2011-08-03 | 2013-02-07 | 日本精工株式会社 | Rolling bearing with seal ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69004191T2 (en) | 1989-08-22 | 1994-03-03 | Nippon Oil Co Ltd | Grease composition for a smooth high-speed bearing. |
| DE4406252C2 (en) | 1993-02-26 | 1998-10-22 | Nsk Ltd | roller bearing |
| DE10041874A1 (en) | 1999-08-25 | 2001-07-05 | Nsk Ltd | Ball-and-roller bearing for alternator, compressor, has sealing up boards with elastomer containing copolymers for enclosing grease |
| DE10222695A1 (en) | 2001-05-23 | 2003-02-20 | Harmonic Drive Systems | Lubrication-free shaft gear device |
-
2003
- 2003-04-15 DE DE20306004U patent/DE20306004U1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69004191T2 (en) | 1989-08-22 | 1994-03-03 | Nippon Oil Co Ltd | Grease composition for a smooth high-speed bearing. |
| DE4406252C2 (en) | 1993-02-26 | 1998-10-22 | Nsk Ltd | roller bearing |
| DE10041874A1 (en) | 1999-08-25 | 2001-07-05 | Nsk Ltd | Ball-and-roller bearing for alternator, compressor, has sealing up boards with elastomer containing copolymers for enclosing grease |
| DE10222695A1 (en) | 2001-05-23 | 2003-02-20 | Harmonic Drive Systems | Lubrication-free shaft gear device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006029612A1 (en) * | 2006-06-26 | 2007-12-27 | Grammer Ag | Interior fitting body for use in head rest of vehicle, has film applied on storage part of surface of supporting rod frame and/or storage body, and frame provided with movable storage area, where film contains Perfluoroalkylether |
| DE102006029612B4 (en) * | 2006-06-26 | 2009-12-17 | Grammer Ag | Interior trim body of vehicles, in particular vehicle headrest |
| WO2012152453A1 (en) * | 2011-05-09 | 2012-11-15 | Schaeffler Technologies AG & Co. KG | Method for improving corrosion protection in rolling bearings and rolling bearings produced according to said method |
| WO2013018865A1 (en) | 2011-08-03 | 2013-02-07 | 日本精工株式会社 | Rolling bearing with seal ring |
| US9316259B2 (en) | 2011-08-03 | 2016-04-19 | Nsk Ltd. | Rolling bearing with seal ring |
| EP3018376A1 (en) | 2011-08-03 | 2016-05-11 | NSK Ltd. | Rolling bearing with seal ring |
| US9523390B2 (en) | 2011-08-03 | 2016-12-20 | Nsk Ltd. | Rolling bearing with seal ring |
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Legal Events
| Date | Code | Title | Description |
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| R207 | Utility model specification |
Effective date: 20030807 |
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| R163 | Identified publications notified |
Effective date: 20040127 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20061101 |