WO2008138281A1 - Ensemble d'étanchéité pour palier à roulement - Google Patents

Ensemble d'étanchéité pour palier à roulement Download PDF

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Publication number
WO2008138281A1
WO2008138281A1 PCT/DE2007/001112 DE2007001112W WO2008138281A1 WO 2008138281 A1 WO2008138281 A1 WO 2008138281A1 DE 2007001112 W DE2007001112 W DE 2007001112W WO 2008138281 A1 WO2008138281 A1 WO 2008138281A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
sealing
arrangement according
rolling bearing
sealing arrangement
Prior art date
Application number
PCT/DE2007/001112
Other languages
German (de)
English (en)
Inventor
Ernst Masur
Etienne Rueff
Gottfried Ruoff
Original Assignee
Schaeffler Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2008138281A1 publication Critical patent/WO2008138281A1/fr

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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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
    • F16C33/6625—Controlling or conditioning the grease supply
    • 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
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
    • 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
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • 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
    • F16C33/7853—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 with one or more sealing lips to contact the inner race
    • F16C33/7856—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 with one or more sealing lips to contact the inner race with a single sealing lip

Definitions

  • the invention relates to a sealing arrangement for a grease-lubricated rolling bearing, with at least one bearing outer ring, at least one bearing nenring and between the same run in rolling elements, wherein the roller bearing is assigned at least one end side at least one, a stiffening ring having sealing disc such that only further lubricant , preferably lubricating oil, can penetrate in small quantities from the outside into the rolling bearing.
  • magnetic fluid seals are known, by means of which, for example, rolling bearings of spindle motors for disk storage should be as tight as possible in order to effectively prevent the escape of lubricating oil from the bearings in a clean air space.
  • this type of sealing arrangement consists of two metal disks spaced apart from one another, between which a permanent magnet disk is arranged. Radially inside a gap is formed, which in turn is filled by ferromagnetic fluid. The ferromagnetic fluid is held in position by the permanent magnet.
  • US Pat. No. 4,948,277 A discloses an annular, rotating seal with integrated magnetic encoder, in particular for rolling bearings with transducers, and with a lip seal set between two rings into which the transducers and the encoder are inserted , With such a seal, the whole of the transmitter with the associated encoder is to be isolated from contamination outside and inside the bearing.
  • EP 1 159 542 B1 discloses a magnetic seal arrangement for rolling bearings for the greatest possible sealing thereof with a so-called dynamic sealing means in the form of a sealing lip of a sealing ring, which is pressed against a corresponding support surface by means of magnetic forces.
  • a magnetic disc or an encoder is arranged on a rotating armor whose magnetic field lines act on a ferromagnetic ring of the sealing ring.
  • the sealing ring has a thinned cross section, which allows the pressing movement of the sealing lip against the support surface.
  • rolling bearings for oil-lubricated motor vehicle transmissions are known, which are used under the name "Clean Bearing” by means of special seals as sealed, grease-lubricated bearings, in particular as main shaft bearings (cf "Die Wälzlagerpraxis", Bäderlein, Eschmann, Hasbargen, Weigand, vernier suverlage GmbH, Mainz, 2002, 3rd edition, p. 389 - 390).
  • These seals have the task of protecting the rolling bearing against contamination, such as abrasion, wear and other impurities.
  • the invention has the object of developing a seal assembly for a grease-lubricated bearings such that on the one hand the inflow of other lubricant, in particular of oil, although in small quantities in the rolling bearing is possible, but on the other hand with simple and inexpensive means the simultaneous penetration of Dirt and metallic particles in the bearing inside is effectively prevented. Summary of the invention
  • the invention is based on the finding that when using a generic rolling bearing in a transmission in the same disturbing and therefore fernetzhaltenden particles consistently consist of such metals that can be pulled out by means of a magnet from the penetrating into the rolling bearing oil flow. Accordingly, it is sufficient for the solution of the task per se to arrange a magnet on the roller bearing such that in the leading into the rolling bearing oil particles metal particles are deposited on this magnet.
  • the invention is therefore based on a seal assembly for a grease-lubricated roller bearing, with at least one bearing outer ring, at least one bearing inner ring and between see the same run in rolling elements, wherein the rolling bearing on at least one end face at least one, a stiffening ring having gasket is assigned such that only further lubricant, preferably lubricating oil, can penetrate in small amounts from the outside into the rolling bearing.
  • This sealing arrangement is additionally characterized in that the sealing disc has at least one permanent-magnetic means for detaching ferromagnetic particles from the further lubricant and / or from the grease already present in the rolling bearing and for fixing the ferromagnetic particles directly to the sealing disc or adjacent thereto.
  • the permanent magnetic means may be formed by the stiffening ring of the sealing disc, which at least in selected areas of a permanent magnetic
  • the stiffening ring can be connected to the sealing disc or arranged thereon such that at least one end face of the stiffening ring is in direct contact with the adjacent medium inside or outside of the bearing in the form of lubricating oil and / or lubricating grease.
  • stiffening ring may also be connected to the sealing disc in such a way that direct contact with the adjacent medium located inside and / or outside of the bearing in the form of lubricating oil and / or lubricating grease is avoided.
  • the permanent magnetic means may also be formed by the sealing disk itself, which consists of a permanent magnetic material at least in selected areas or has permanent magnetic components.
  • the permanent magnetic means may be formed by a magnetic element which is fixed to the sealing disc.
  • a magnetic element which is fixed to the sealing disc.
  • Commercially available permanent magnets for example magnets based on neodymium-iron-boron (NdFeB), come into consideration as the magnetic element.
  • NdFeB neodymium-iron-boron
  • Such magnetic elements are physically small, in large numbers inexpensive commercially available, so that there is the advantage of retrofitting existing seals by simply supplementing the seal with the magnetic element.
  • the attachment of the magnetic element to the seal by gluing for example by means of a commercial adhesive, can be carried out quickly and easily.
  • the magnetic element is adhesively secured to the stiffening ring of the seal, resulting in the advantage that the stiffening ring provides the magnetic element with a rigid base. Furthermore, it proves to be advantageous that the metallic stiffening ring Screen of the magnetic element shields and prevents leakage of the magnetic field in the area outside the camp. If the magnetic field exits the region of the bearing at least partially outwards, for example into the region of the supply line of the lubricant, there is a risk that the magnetic field will transfer ferromagnetic particles into the region of the bearing, that is between the inner ring and the inner ring the outer ring located area in which the rolling elements are, pulls.
  • the stiffening ring and / or the sealing disc can have one or more axial recesses or pockets for receiving adhering ferromagnetic particles.
  • single row or multi-row roller bearings may be formed in the form of a fixed bearing or a floating bearing with the seal assembly according to the invention.
  • a sealing arrangement is particularly suitable for dirt-protected rolling bearings of a motor vehicle transmission.
  • FIG. 1 is a partial axial section through an equipped with a seal assembly according to the invention rolling bearing, 2 shows the detail "Z" according to FIG. 1 in the form of a sealing disk of the sealing arrangement, FIG.
  • Fig. 10a the sealing disc according to the third embodiment in a sectional view taken along the line B-B of Fig. 9, and
  • FIG. 10b shows the sealing disk from FIG. 10a with an enlarged view of the section "Z" in FIG.
  • Fig. 1 shows a single-row roller bearing 1 in the form of a grease-lubricated deep groove ball bearing, which is installed for example in a motor vehicle transmission not shown in detail.
  • this rolling bearing 1 has a bearing outer ring 2, a bearing inner ring 3 and between the same in raceways 4, 5 of the bearing rings 2, 3 guided rolling elements 6.
  • the rolling bearing 1 is sealed at its two end faces by means of a respective sealing disk 7, which is manufactured using a non-metallic material.
  • the sealing discs 7 have sealing lips 8 and 9, which at the radial inner circumferential surface of the bearing outer ring 2 or 3 sealingly abut against the radially outer surface of the bearing inner ring 3.
  • the radially outer sealing lip 8 has at least one ventilation groove 10 (see FIGS. 2 and 3), via which oil can penetrate from the outside into the rolling bearing 1 and can flow out of it.
  • the sealing disk 7 is supported by a stiffening ring 11, which is preferably connected to the sealing disk 7 by positive locking, for example, snapped into the same or cast in the manufacture of a sealing disc 7 made of plastic or vulcanized to this.
  • a stiffening ring 11 which is preferably connected to the sealing disk 7 by positive locking, for example, snapped into the same or cast in the manufacture of a sealing disc 7 made of plastic or vulcanized to this.
  • any other known joining measures, such as gluing are applicable and accordingly covered by the invention.
  • the ventilation groove 10 on the radially outer sealing lip 8 of the sealing disc 7 is designed according to the requirement for low friction, good lubrication and the retention of dirt particles. Although, as already mentioned, a narrow ventilation and venting groove 10 permits the penetration and outflow of further lubricant, in this case gear oil, into the roller bearing 1 from the outside in small amounts, but retains particles.
  • the sealing disc 7 according to the invention, at least one permanent magnetic means for dissolving out the ferromagnetic particles from the other lubricant, in this case the transmission oil, and / or the in the rolling bearing 1 already located grease and for fixing these particles directly on the sealing disc 7 or adjacent to the same.
  • the permanent magnetic means is formed by the stiffening ring 11 itself, which consists at least in selected areas of a permanent magnetic material or permanent magnetic components.
  • Permanent magnet materials are widely known. For example, steel, ferrites, aluminum-nickel-cobalt (AINiCo) compounds, samarium-cobalt (SmCo) compounds or neodymium-iron-boron (NdFeB) compounds, for example also bound in plastic, can be used. It is further understood that from the aforementioned compounds exemplified also the magnetic element may exist, which has been proposed as a further embodiment of the magnetic means as a third embodiment (Fig. 9, 10a, 10b).
  • FIGS. 4 and 5 show that the magnetic stiffening ring 11 is connected to the sealing disk 7 or arranged thereon such that at least one end face of the stiffening ring 11 is in direct contact with the adjacent, on the inside of the bearing in the form of grease and lubricating oil or the medium located outside on the bearing in the form of oil or gear oil.
  • FIG. 4 shows that the stiffening ring 11 with an axial end side directly adjoins the grease space of the rolling bearing 1 formed between the two bearing rings 2, 3, whereas the stiffening ring 11 according to FIG. 5 is the opposite axial end side of the sealing arrangement 7, 11 forms.
  • stiffening ring 11 it is also possible to arrange the stiffening ring 11 in such a way that both end faces of the same are in direct contact with the mentioned media, by threading the sealing disk 7 onto the stiffening ring 11, as it were, or connected to it in a form-locking manner. vulcanized (not shown in detail).
  • stiffening ring 11 it may also be useful and is therefore also covered by the invention, to connect the stiffening ring 11 with the sealing disc 7 such that direct contact with the media in the form of lubricating oil and / or grease is avoided, wherein the stiffening ring 11 of the sealing disc 7, for example, is completely enclosed in plastic.
  • Such axial recesses or pockets may also be formed in the exposed surface of the stiffening ring 11 according to the first-mentioned embodiment.
  • the desired magnetism can advantageously be limited to the region thereof or substantially increased in these regions, whereby undesired adhesions to the sealing lips 8, 9 and accordingly increased wear be effectively avoided.
  • the above embodiments are essentially based on a permanent magnet 11 or provided with permanent magnetic components stiffening ring.
  • the permanent magnetic means by the sealing disc 7 itself form by the same consists of a permanent magnetic material or at least permanent magnetic components (not shown in detail).
  • a sealing disk 7 made of plastic can have permanent-magnetic admixtures in pulverulent form, which can be introduced at predetermined locations of the sealing disk 7, preferably at a distance from the radial ends of the sealing lips 8 and 9, and in a defined amount without a to hinder certain desired flexibility of the sealing disc 7.
  • the permanent-magnetic means may be formed by a magnetic element 12 (FIGS. 9, 10a, 10b), or comprise a plurality of magnetic elements.
  • the magnetic element is a permanent magnet made of a neodymium-iron-boron (NdFeB) compound previously separately obtained from the sealing disk 7, as are commercially available cheaply and in large quantities.
  • the magnetic element 12 is glued by means of a commercially available adhesive to the metallic stiffening ring 11 of the sealing disc 7, namely on the in the installed position of the seal inwardly facing side 13 of the stiffening ring 11, the area of the bearing in which the rolling elements (in FIG 9, 10a and 10b are not recognizable).
  • the magnetic element 12 may also be attached to the side of the seal facing away from the rolling elements, but at a point in which the magnetic field of the magnetic element 12 can reach inwardly into the bearing , for example, in the region of sealing lips 14 (FIG. 10b), which are made of plastic and therefore of a very little magnetizing effect. ren material exist.
  • the sketched arrangement of the magnetic element 12 outside of the bearing to the outwardly facing side of the seal has the advantage of being able to retrofit an existing, in mounting position bearing in a simple manner, without having to open the seal of the bearing.
  • the magnetic element 12 is arranged on the inwardly facing side 13 of the sealing disk 7 or the stiffening ring 11 of the sealing disk 7, it can additionally be provided that the magnetic element 12 is arranged in a recess or pocket, as a result of which the magnetic element 12 not itself, but only its magnetic field extends into the interior of the bearing and it can be further ensured that the trapped by the magnetic element 12 ferromagnetic particles are removed from the interior of the bearing and guided along the sealing disc 7 lubricant trapped on the magnetic element 12th Do not take particles with you and tear loose.
  • Compared to the previously described embodiments with a substantially flat magnetized sealing disc 7 and a flat magnetized stiffening ring 11 are magnetic elements 12 comparatively punctiform magnetic fields, which exert a strong, locally concentrating effect on the magnetic
  • the magnetic member 12 was adhesively bonded to the stiffening ring 11 of the sealing washer 7. It is understood that the magnetic element 12 can be held only by magnetic forces between the magnetic element 12 and the metallic stiffening ring 11 on the latter. Further, the magnetic member 12 may be disposed not only on the outside of the sealing washer 7 but may be received in the sealing washer 7, for example, by injecting the magnetic member 12 into an elastomeric layer of the gasket, or if the magnetic member 12 is received in the reinforcing ring 11 of the gasket is. In the case of the magnetic element 12 received in the stiffening ring 11, it is not necessary for the stiffening ring 11 to be metallic in turn or magnetic properties.
  • seal assembly in question is not only suitable for the above-mentioned single row deep groove ball bearing in the form of a so-called "clean bearing" within a gear assembly
  • Fixed or floating bearing apply, if there is a need to weed out ferromagnetic particles from a rolling bearing lubricant.
  • roller bearings 1 are shown by way of example only, in this order a single row deep groove ball bearings, a double row angular contact ball bearings in O arrangement and finally a double row angular contact ball bearings in X arrangement, which are equipped with the inventively designed seal assembly.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

L'invention concerne un ensemble d'étanchéité pour un palier à roulement (1) lubrifié à la graisse, comprenant au moins une bague externe (2), au moins une bague interne (3) et, entre elles, des corps roulants (6) guidés dans des chemins de roulement (4, 5), le palier à roulement (1) étant associé, au niveau d'au moins une face frontale, d'au moins un disque d'étanchéité (7) présentant un anneau de renforcement (11) de sorte que seulement un autre lubrifiant, de préférence de l'huile lubrifiante puisse pénétrer dans le palier à roulement (1) en faibles quantités depuis l'extérieur. Le but de l'invention est de remédier aux effets négatifs que les particules ferromagnétiques se trouvant dans le lubrifiant ont sur le palier à roulement (1) et ce, de manière efficace et économique. A cet effet, le disque d'étanchéité (7) présente au moins un moyen à aimantation permanente pour éliminer les particules ferromagnétiques de l'autre lubrifiant et/ou de la graisse lubrifiante déjà dans le palier à roulement (1) et pour fixer les particules ferromagnétiques directement au niveau du disque d'étanchéité (7) ou au voisinage de ce dernier.
PCT/DE2007/001112 2007-05-15 2007-06-23 Ensemble d'étanchéité pour palier à roulement WO2008138281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007022675A DE102007022675A1 (de) 2007-05-15 2007-05-15 Dichtungsanordnung für ein Wälzlager
DE102007022675.8 2007-05-15

Publications (1)

Publication Number Publication Date
WO2008138281A1 true WO2008138281A1 (fr) 2008-11-20

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DE (1) DE102007022675A1 (fr)
WO (1) WO2008138281A1 (fr)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
WO2013001329A1 (fr) * 2011-06-28 2013-01-03 Aktiebolaget Skf Ensemble roulement étanche avec aimant sur le disque d'étanchéité pour attirer les particules métalliques
WO2013110334A1 (fr) * 2012-01-26 2013-08-01 Aktiebolaget Skf Ensemble de palier à roulement possédant des éléments magnétiques et/ou électroniques
US20140199011A1 (en) * 2011-03-24 2014-07-17 Jean-Baptiste Magny Rolling bearing, notably used in a wind turbine
DE102013021748A1 (de) * 2013-12-20 2015-06-25 Sew-Eurodrive Gmbh & Co Kg Dichtanordnung für ein Wälzlager und Getriebe mit einer Dichtanordnung für ein Wälzlager des Getriebes
WO2015167708A1 (fr) * 2014-05-01 2015-11-05 Schaeffler Technologies AG & Co. KG Joint de roulement axial-radial à double lèvre
CN107327496A (zh) * 2017-08-11 2017-11-07 南通山口精工机电有限公司 一种微型轴承密封防尘盖
ES2705440R1 (es) * 2016-04-06 2019-04-11 Laulagun Bearings S L Dispositivo para limpieza de particulas ferromagneticas de rodamientos y procedimiento de limpieza

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Publication number Priority date Publication date Assignee Title
DE102010019442A1 (de) 2010-05-05 2011-11-10 Schaeffler Technologies Gmbh & Co. Kg Wälzlager mit integrierter Abdichtung
DE102016222544A1 (de) * 2016-11-16 2018-05-17 Schaeffler Technologies AG & Co. KG Dichtungsscheibe mit einer superhydrophoben Oberfläche

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WO2013110334A1 (fr) * 2012-01-26 2013-08-01 Aktiebolaget Skf Ensemble de palier à roulement possédant des éléments magnétiques et/ou électroniques
DE102013021748A1 (de) * 2013-12-20 2015-06-25 Sew-Eurodrive Gmbh & Co Kg Dichtanordnung für ein Wälzlager und Getriebe mit einer Dichtanordnung für ein Wälzlager des Getriebes
WO2015167708A1 (fr) * 2014-05-01 2015-11-05 Schaeffler Technologies AG & Co. KG Joint de roulement axial-radial à double lèvre
US9528554B2 (en) 2014-05-01 2016-12-27 Schaeffler Technologies AG & Co. KG Double lip axial radial bearing seal
ES2705440R1 (es) * 2016-04-06 2019-04-11 Laulagun Bearings S L Dispositivo para limpieza de particulas ferromagneticas de rodamientos y procedimiento de limpieza
CN107327496A (zh) * 2017-08-11 2017-11-07 南通山口精工机电有限公司 一种微型轴承密封防尘盖

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