EP1819931A1 - Wälzlagereinheit - Google Patents
WälzlagereinheitInfo
- Publication number
- EP1819931A1 EP1819931A1 EP05814815A EP05814815A EP1819931A1 EP 1819931 A1 EP1819931 A1 EP 1819931A1 EP 05814815 A EP05814815 A EP 05814815A EP 05814815 A EP05814815 A EP 05814815A EP 1819931 A1 EP1819931 A1 EP 1819931A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing unit
- rolling bearing
- unit according
- ring
- inner 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.)
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/768—Sealings of ball or roller bearings between relatively stationary parts, i.e. static seals
-
- 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
- F16C33/7859—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 further sealing element
-
- 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
- F16C33/80—Labyrinth sealings
-
- 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
Definitions
- the invention relates to a rolling bearing unit.
- seals are used both to protect the bearing before the entry of solids such as dust and / or liquids such as water and to protect the environment of the bearing against the escape of lubricant from an interior of the bearing.
- the seals act between an intended stationary and a moving part of the bearing. A distinction is made between non-contact and abrasive seals.
- An object of the invention is to provide a rolling bearing unit, which is formed in dense and dense installation in a predetermined installation environment is.
- a roller bearing unit comprises the following features: an inner ring, an outer ring and rolling elements arranged therebetween, sealing means for limiting a space between the inner and outer ring, which includes the rolling elements, at least one radially encircling groove on the outer surface of the outer ring for receiving an O ring shaped sealing ring and at least one, attached to one of the two end faces of the inner ring slinger.
- the rolling bearing unit sealing means for limiting the rolling body-containing space between the inner and outer ring and on at least one of the end faces of the rolling bearing unit this sealing means comprises a directly upstream, attached to the end face of the inner ring slinger is a simple and compact design a Self-sealing rolling bearing provided, on the one hand prevents leakage of lubricant, which is provided for example in the rolling body-containing space and / or on one side of the rolling bearing unit, and on the other hand, an entry, for example, from grinding dust in the lubricated area inside.
- the centrifugal disc reinforces the sealing effect of the sealant without causing additional friction moments.
- centrifugal disc acts as an additional wear protection for the sealant, since, for example dirt particles are kept away from the sealing means by the centrifugal disc, which is particularly advantageous when forming the sealant as a contact fitting sealing washers. Furthermore, prevents in the radially on the outer surface of the outer ring circumferential
- the outer ring of a bearing steel and the housing is formed of an aluminum alloy.
- the rolling bearing unit is essentially completely deliverable without any loss of items and assembled without further assembly. Also, the inserted into the corresponding groove of the outer ring O-shaped sealing ring can be supplied so captive.
- the sealing means and the centrifugal disc are axially spaced so tightly spaced on at least one of the bearing faces, that between the sealing means and the centrifugal disc additionally a kind of labyrinth seal effect is achieved, whereby advantageously the seal is additionally improved.
- the groove is arranged offset with respect to a radially extending center plane of the rolling bearing unit.
- the outer ring is advantageously free of mechanical weakening in the region in which the force transmission between the rolling elements and the outer ring takes place.
- Figure 1 is an upper half of a longitudinal section through a rolling bearing unit with two centrifugal discs, with an O-shaped sealing ring in a groove of the
- Roller bearing outer ring and two cover plates as a sealant for a rolling body-containing space between the two rolling bearing rings and
- Figure 2 is an upper half of a longitudinal section through a rolling bearing unit with two centrifugal discs, with an O-shaped sealing ring in a groove of the rolling bearing outer ring and two sealing washers for sealing a rolling body-containing space between the two rolling bearing rings.
- FIG. 1 shows, as an embodiment of the invention, an upper half of a longitudinal section through a roller bearing unit designed essentially as a deep groove ball bearing.
- the rolling bearing unit comprises an inner ring 10 and an outer ring 20, between which are designed as balls and guided in a cage 40 rolling elements 30 for rolling between the two rings 10 and 20 are arranged.
- a respective disk-shaped cover disk 50 for example formed from a steel sheet, is arranged axially on both sides of the rolling bodies 30 as sealing means. Said space may be at least partially filled with a lubricant, such as a grease.
- a lubricant such as a grease.
- Each of the cover plates 50 is used for attachment to the outer ring 20 with its radially outer edge region in a ring on the inner surface of the outer ring 20 circumferential groove.
- the cover plates 50 and the inner ring 10 are designed such that each cover plate 50 between a radially inner edge region of the cover plate 50th and an outer jacket of the inner ring 10, a ring-like gap predeterminable radial thickness is formed.
- each of the two end faces of the inner ring 10 are each a disc-like centrifugal disc 60, for example, from a steel sheet, secured by welding the centrifugal disc 60 with the end face of the designated intended for rotation inner ring 10.
- the centrifugal disks 60 are formed with an inner diameter greater than a maximum inner diameter of the inner ring 10 and with an outer diameter approximately corresponding to a diameter of the WälzSystemteilnikes.
- the centrifugal disk 60 and the cover disk 50 are spaced so short in the axial direction that thereby a kind of labyrinth seal effect is achieved, which again produces an additional sealing effect.
- annular circumferential groove 25 is incorporated on the outer surface of the outer ring 20, in which a correspondingly formed O-shaped sealing ring 70 is inserted. It is a function of the sealing ring 70 to achieve sealing in an installation of the rolling bearing unit in a housing, not shown, between the outer shell of the outer ring 20 and a surface of the housing opposite the outer surface. This prevents that from a first space, which adjoins one of the end faces of the rolling bearing unit, occurring there first material, for example, said sanding dust, nor from a second adjoining the other end room space there inserted second material, such as a lubricant into which each other room can enter.
- first material for example, said sanding dust
- the outer ring 20 and the housing are formed from materials of different thermal expansion coefficients - which is usually the case - because otherwise due to the Thermal expansion would arise depending on the temperature between the outer shell of the outer ring 20 and the opposite surface of the housing, a gap could pass through the aforementioned substances.
- the outer ring 20 is typically formed of a bearing steel and the housing, for example, of an aluminum alloy.
- FIG. 2 shows, as a further exemplary embodiment of the invention, an upper half of a longitudinal section through a further rolling bearing unit, wherein this rolling bearing unit of FIG. 2 differs essentially from the rolling bearing unit of FIG. 1 in that sealing disks 50 'are used instead of the cover disks 50, wherein each of the sealing washers 50 'comprises a support body 54' and an elastomeric body 52 'cast thereon.
- the sealing discs 50 'with respect to the inner ring 10' arranged free of contact, so that between the sealing disks 50 'and the inner ring 10' annular gaps of predeterminable thickness are formed.
- sealing washers are formed with one or more sealing lips for abrading abutment on substantially radially and / or axially extending surfaces of the inner ring.
- sealing disks shown in the SKF General Catalog of June 2003 on pages 229 and 293.
- FIG. 2 wherein components of FIG. 2 corresponding to components of FIG. 1 are designated by the same reference numerals supplemented by a hyphen.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004058904A DE102004058904A1 (de) | 2004-12-07 | 2004-12-07 | Wälzlagereinheit |
PCT/EP2005/012454 WO2006061096A1 (de) | 2004-12-07 | 2005-11-22 | Wälzlagereinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1819931A1 true EP1819931A1 (de) | 2007-08-22 |
Family
ID=36178039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05814815A Ceased EP1819931A1 (de) | 2004-12-07 | 2005-11-22 | Wälzlagereinheit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1819931A1 (de) |
DE (1) | DE102004058904A1 (de) |
WO (1) | WO2006061096A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008009301A1 (en) * | 2006-07-19 | 2008-01-24 | Ab Skf | Bearing arrangement for a bicycle |
DE102008012488A1 (de) | 2008-03-04 | 2009-09-17 | Schaeffler Kg | Teilelement für ein Dichtelement eines Lagers |
DE102009051355A1 (de) * | 2009-10-30 | 2011-05-05 | Aktiebolaget Skf | Dichtungsbauteil einer Lageranordnung und Verfahren zum Montieren eines Bauteils |
EP2750910A1 (de) * | 2011-09-01 | 2014-07-09 | Schaeffler Technologies GmbH & Co. KG | Lageranordnung für eine antriebsvorrichtung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004308839A (ja) * | 2003-04-09 | 2004-11-04 | Koyo Seiko Co Ltd | 転がり軸受 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3212976A1 (de) * | 1982-04-07 | 1983-10-13 | Robert Bosch Gmbh, 7000 Stuttgart | Waelzlager |
JPS6165915A (ja) * | 1984-09-07 | 1986-04-04 | エスカーエフ ゲーエムベーハー | 転がり軸受のシール装置 |
DE19700135A1 (de) * | 1997-01-03 | 1998-07-09 | Fritz Guettler | Rillenkugellager mit Einfach- und Mehrfachabdichtung und davor axial ortsfest fixiert angeordneter Schleuderscheibe |
JP2000337391A (ja) * | 1999-05-28 | 2000-12-05 | Minebea Co Ltd | 軸受装置 |
WO2001020184A1 (en) * | 1999-09-10 | 2001-03-22 | Nsk Ltd. | Sealed roller bearing |
IT1320472B1 (it) * | 2000-06-30 | 2003-11-26 | Skf Ind Spa | Cuscinetto a rotolamento per un motore elettrico. |
JP2003021226A (ja) * | 2001-07-06 | 2003-01-24 | Kubota Corp | 作業機の動力伝達装置 |
DE20304998U1 (de) * | 2003-03-27 | 2003-08-21 | Minebea Co., Ltd., Miyota, Kitasaku | Elektromotor mit einem Motorgehäuse und einem Zugangsteil |
-
2004
- 2004-12-07 DE DE102004058904A patent/DE102004058904A1/de not_active Withdrawn
-
2005
- 2005-11-22 EP EP05814815A patent/EP1819931A1/de not_active Ceased
- 2005-11-22 WO PCT/EP2005/012454 patent/WO2006061096A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004308839A (ja) * | 2003-04-09 | 2004-11-04 | Koyo Seiko Co Ltd | 転がり軸受 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2006061096A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004058904A1 (de) | 2006-06-22 |
WO2006061096A1 (de) | 2006-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102012206659B4 (de) | Vormontiert einpressbare Wälzlagereinheit | |
DE112006001275T5 (de) | Dichtungsvorrichtung | |
DE112006001263T5 (de) | Dichtungsvorrichtung mit Polrad | |
DE102016008824A1 (de) | Wälzlageranordnung und Röntgenröhrenlagerung | |
WO2009156260A1 (de) | Kassettendichtung | |
DE3219156C2 (de) | ||
DE102017218011A1 (de) | Radlageranordnung für ein Fahrzeugrad | |
DE2850891A1 (de) | Dichtung | |
WO2006061096A1 (de) | Wälzlagereinheit | |
EP2618032B1 (de) | Wellendichtung, insbesondere Radialwellendichtung | |
DE102013219118B4 (de) | Flanschlager-Gehäuseeinheit | |
DE102012206892A1 (de) | Wälzlager mit Dichtscheibe | |
DE2942480A1 (de) | Dichtung fuer waelzlager, insbesondere fuer foerderbandrollen | |
DE102006017443B4 (de) | Wälzlageranordnung | |
DE102014205095A1 (de) | Abdichtung einer Radlagereinheit | |
DE102012207745A1 (de) | Pendelrollenlager mit Dichtscheibe | |
WO2015018383A1 (de) | Ausrücklageranordnung | |
DE2940199C2 (de) | Lagersystem für die Durchführung der Welle eines Absperrventils | |
DE68905357T2 (de) | Dichtungsvorrichtung mit Doppelschutz und damit ausgestattetes Wälzlager. | |
WO2011018315A1 (de) | Wälzlager | |
EP2464881A1 (de) | Wälzlager | |
EP2350482A1 (de) | Wälzlager mit dichtelementen | |
DE102012211853B4 (de) | Dichtring mit Dichtlippenentkopplung, Kassettendichtung mit einem solchen Dichtring und Wälzlager mit einem solchen Dichtring oder einer solchen Kassettendichtung | |
EP2861897B2 (de) | Gleitringdichtung | |
WO2022073548A1 (de) | Dichtungsanordnung für radlager und radlagereinheit mit dichtungsanordnung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20070531 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20080303 |
|
APBK | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOSNREFNE |
|
APBN | Date of receipt of notice of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA2E |
|
APBR | Date of receipt of statement of grounds of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA3E |
|
APAF | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
APBT | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9E |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20140114 |