DE4142313C2 - Radial or axial roller bearings made of steel - Google Patents

Radial or axial roller bearings made of steel

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Publication number
DE4142313C2
DE4142313C2 DE4142313A DE4142313A DE4142313C2 DE 4142313 C2 DE4142313 C2 DE 4142313C2 DE 4142313 A DE4142313 A DE 4142313A DE 4142313 A DE4142313 A DE 4142313A DE 4142313 C2 DE4142313 C2 DE 4142313C2
Authority
DE
Germany
Prior art keywords
radial
coating
zinc
counter surface
corrosion
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
Application number
DE4142313A
Other languages
German (de)
Other versions
DE4142313A1 (en
Inventor
Karl-Ludwig Dipl Ing Grell
Reiner Woltmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
INA Waelzlager Schaeffler OHG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6447716&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE4142313(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Priority to DE4142313A priority Critical patent/DE4142313C2/en
Priority to DE9117069U priority patent/DE9117069U1/en
Priority to CS923700A priority patent/CZ283740B6/en
Priority to KR1019920024439A priority patent/KR100242577B1/en
Priority to JP4336964A priority patent/JP2886013B2/en
Priority to RU9292004600A priority patent/RU2079740C1/en
Priority to BR9205068A priority patent/BR9205068A/en
Priority to RO92-01584A priority patent/RO109771B1/en
Publication of DE4142313A1 publication Critical patent/DE4142313A1/en
Publication of DE4142313C2 publication Critical patent/DE4142313C2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16C33/34—Rollers; Needles
    • 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
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7826—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring
    • 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
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • 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
    • F16C33/72—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
    • 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
    • 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
    • F16C19/04—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
    • F16C19/08—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 two or more rows of 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
    • F16C19/22—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
    • F16C19/24—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 radial load mainly
    • F16C19/28—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 radial load mainly with two or more rows of 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/50—Alloys based on zinc
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/60—Thickness, e.g. thickness of coatings
    • 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
    • F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
    • F16C2300/42—Application independent of particular apparatuses related to environment, i.e. operating conditions corrosive, i.e. with aggressive media or harsh conditions
    • 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
    • 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
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage

Description

Die Erfindung bezieht sich auf ein Radial- oder Axialwälzlager aus Stahl nach dem Oberbegriff des Anspruchs 1.The invention relates to a radial or axial roller bearing stole according to the preamble of claim 1.

Radial- oder Axialwälzlager der vorgenannten Gattung sind allgemein bekannt. Werden derartige Wälzlager in Antriebselementen eingesetzt, die der Einwirkung von Säuren oder Salzwasser ausgesetzt sind, so tritt nach relativ kurzer Zeit an den wälzkörper- und dichtungsführen­ den Flächen Korrosion auf, die zur Zerstörung des Wälzlagers führt.Radial or axial roller bearings of the aforementioned type are general known. If such rolling bearings are used in drive elements, which are exposed to the effects of acids or salt water, so occurs after a relatively short time on the rolling element and seal guides corrosion on the surfaces, which leads to the destruction of the rolling bearing.

Ein Radialwälzlager ist aus der DE-GBM 90 05 328 bekannt. Dieses Radialwälzlager weist Bordscheiben beider­ seits der Wälzkörperreihen auf, wobei der am äußeren Laufring befe­ stigte Radialdichtring mit seiner Dichtlippe am äußeren Umfang der jeweiligen Bordscheibe anliegt. Darüberhinaus kann die Dichtlippe bei einer geänderten Ausbildung des Radialwälzlagers, die in dieser Druck­ schrift nicht dargestellt ist, bekanntlich auch unmittelbar am äußeren Umfang des inneren Laufrings anliegen. Ist dieses Radialwälzlager an seinem äußeren Flüssigkeiten ausgesetzt, die Korrosion der aus Stahl hergestellten Teile hervorrufen, so treten insbesondere dann Probleme auf, wenn an dem jeweiligen Abschnitt Korrosion auftritt, an dem die Dichtlippe des Radialdichtrings anliegt. Dann nämlich kann die Radial­ dichtung nicht mehr ihre Funktion erfüllen und es tritt nach relativ kurzer Zeit ein Lagerschaden auf.A radial roller bearing is from DE-GBM 90 05 328 known. This radial roller bearing has flanges of both on the part of the rolling element rows, the befe on the outer race radial seal with its sealing lip on the outer circumference of the the respective flanged washer. In addition, the sealing lip can a changed design of the radial roller bearing in this pressure Scripture is not shown, as is well known directly on the outside Fit the circumference of the inner race. Is this radial roller bearing on exposed to its external fluids, the corrosion of steel cause produced parts, then problems occur in particular if corrosion occurs on the section where the Sealing lip of the radial sealing ring rests. Then namely the radial seal no longer perform its function and it occurs after relative bearing damage in a short time.

Aus der älteren deutschen Anmeldung DE 41 25 585 A1 ist es in diesem Zusammenhang auch bekannt, ein Bauteil mit einer Korrosionsschutz­ schicht aus einer Zinklegierung zu versehen, wobei die Korrosions­ schutzschicht eine Dicke von 0.1 bis 3.0 µm aufweist. Ist dieses Bauteil als ein Wälzlagerbauteil ausgebildet, so bleibt die tribologi­ sche Beanspruchung, die Wälzkörperüberrollung, ohne negative Folgen für die Lebensdauer, da die Legierung in das Rauhigkeitsprofil der Laufbahn eingedrückt wird und dort festhaftet.From the older German application DE 41 25 585 A1 it is in this Context also known, a component with a corrosion protection To provide a layer of zinc alloy, the corrosion protective layer has a thickness of 0.1 to 3.0 µm. Is this The component is designed as a roller bearing component, so the tribology remains stress, rolling element rollover, without negative consequences for the life, since the alloy in the roughness profile of the Career is indented and stuck there.

Aus der JP 63-88321 (A) ist ein nach beiden Seiten abgedichtetes Radiallager bekannt. dessen aus rostfreiem Stahl bestehende Laufringe mit einer Schutzschicht aus Nickel versehen sind. Neben einem Korro­ sionsschutz soll die Nickelschicht vermutlich auch zur Verbesserung der Laufeigenschaften des Lagers beitragen.JP 63-88321 (A) is a sealed on both sides Radial bearings known. its stainless steel races are provided with a protective layer made of nickel. In addition to a corro The nickel layer is probably also intended to improve protection contribute to the running properties of the bearing.

Die Aufgabe der Erfindung besteht darin, Korrosion an der Gegenfläche der Dichtung zu verhindern, wobei die Korrosionsschutz­ maßnahme eine hohe Standzeit haben soll.The object of the invention is corrosion on the Prevent mating surface of the seal, taking the corrosion protection measure should have a long service life.

Erfindungsgemäß soll die Aufgabe dabei nach dem kennzeichnenden Teil des Anspruchs 1 gelöst werden. According to the invention, the task according to the characterizing part of the Claim 1 to be solved.  

Gemäß den Ansprüchen 2, 3 und 4 kann die Zink-Legierung alternativ als Zink-Nickel-, als Zink-Eisen- oder als Zink-Kobalt-Verbindung herge­ stellt sein.According to claims 2, 3 and 4, the zinc alloy can alternatively as Zinc-nickel, zinc-iron or zinc-cobalt compound poses.

Diese Schichtdicken von 0,1 bis 3,0 µm bewegen sich in der Größenordnung der Oberflächenrauhigkeit an Wälzlagerbauteilen. Dadurch wird erreicht, daß sich bei Inbetriebnahme des Wälzlagers die galvanische Schicht völlig in das Rauhheitsprofil der Oberfläche einarbeitet und damit keinen negativen Einfluß auf die Toleranzen der Bauteile ausüben kann. Durch den feinsten Abrieb innerhalb der Rauhigkeitstiefe der Wälz­ lagerlaufbahn werden Schichtpartikel eingewalzt, die den Rostschutz der Laufbahn und somit des Wälzlagers erhöhen und eine Art Notlauf bzw. Trockenschmierung darstellen. Aufgrund der geringen Schichtdicken läßt sich auch die Umweltbelastung reduzieren.These layer thicknesses of 0.1 to 3.0 µm are in the order of magnitude Surface roughness on rolling bearing components. This ensures that the galvanic layer is present when the rolling bearing is started up completely incorporated into the roughness profile of the surface and thus cannot have a negative influence on the tolerances of the components. Due to the finest abrasion within the roughness depth of the roller Layer is rolled into the bearing raceway, which protects against rust increase the track and thus the rolling bearing and a kind of emergency run or dry lubrication. Because of the thin layers the environmental impact can also be reduced.

Schließlich soll die Korrosionsschutz­ beschichtung als obere Schicht eine Gelb-Chromatierung aufweisen. Durch den Nickel- oder Eisenanteil in der Zinkbeschichtung und die Verwendung dieser chromatierten Ausführung werden deren Festigkeit und Härte von ca. 60 HV auf ca. 300 HV erhöht, also deren Abriebfestigkeit um ein Mehrfaches gesteigert.Finally, the corrosion protection have a yellow chromate coating as the upper layer. Due to the nickel or iron content in the zinc coating and the Using this chromated version, its strength and Hardness increased from approx. 60 HV to approx. 300 HV, i.e. their abrasion resistance increased by a multiple.

Zur Erläuterung der Erfindung wird auf die Zeichnung verwiesen, in der drei unterschiedliche Ausgestaltungsbeispiele vereinfacht dargestellt sind. Es zeigen: To explain the invention reference is made to the drawing in which three different design examples are shown in simplified form are. Show it:  

Fig. 1 eine Teilansicht eines einreihigen Radialkugellager, im Längsschnitt dessen innerer und äußerer Laufring mit einer Korrosionsschutzbeschichtung versehen sind, Fig. 1 is a partial view of a single-row radial ball bearing are provided in longitudinal section, the inner and outer race with a corrosion protective coating,

Fig. 2 einen Längsschnitt durch ein Zylinderrollenlager mit winkelförmigen Bordscheiben und Fig. 2 shows a longitudinal section through a cylindrical roller bearing with angular flanges and

Fig. 3 eine Teilansicht eines zweireihigen Radialkugellagers im Längsschnitt mit stirnseitiger Abdichtung über Radi­ aldichtringe. Fig. 3 is a partial view of a double-row radial ball bearing in longitudinal section with sealing on the front side using radial sealing rings.

In der Fig. 1 ist mit 1 ein einreihiges Radialkugellager bezeichnet, das aus einem inneren Laufring 2, einem äußeren Laufring 3, einem Wälzkörperkranz 4 und einem Käfig 5 besteht. Die Wälzkörper des Wälz­ körperkranzes 4 rollen dabei zwischen einander zugewandten rillenför­ migen Laufflächen 7 und 8 des inneren und äußeren Laufrings 2 und 3 ab. Es sind sowohl der innere Laufring 2 als auch der äußere Laufring 3 an ihrer gesamten Oberfläche mit einer Korrosions­ schutzbeschichtung 6 aus einer Zink-Verbindung versehen. Diese vor­ zugsweise aus Zink-Nickel, Zink-Eisen oder Zink-Kobalt hergestellte Korrosionsschutzbeschichtung 6 ist auch innerhalb der rillenförmigen Laufflächen 7 und 8 angeordnet und kann eine Schichtdicke von etwa 0.1 bis. 3,0 µm aufweisen.In Fig. 1, 1 denotes a single-row radial ball bearing, which consists of an inner race 2 , an outer race 3 , a roller ring 4 and a cage 5 . The rolling elements of the rolling body ring 4 roll between facing rillenför shaped treads 7 and 8 of the inner and outer races 2 and 3 . There are both the inner race 2 and the outer race 3 on their entire surface with a corrosion protection coating 6 made of a zinc compound. This preferably made of zinc-nickel, zinc-iron or zinc-cobalt corrosion protection coating 6 is also arranged within the groove-shaped treads 7 and 8 and can have a layer thickness of about 0.1 to. 3.0 µm.

In der Fig. 2 ist mit 9 ein zweireihiges Zylinderrollenlager bezeich­ net, welches aus einem inneren Laufring 10 und einem dazu konzentrisch angeordneten äußeren Laufring 11 besteht. Die beiden Laufringe 10 und 11 weisen einander gegenüberliegende Laufflächen 12 und 13 auf, zwi­ schen denen zwei Reihen zylindrischer Wälzkörper 14 angeordnet sind. Zur Führung der zylindrischen Wälzkörper 14 sind im äußeren Laufring 11 Borde 15 und 16 vorgesehen, während die beiden Reihen von Wälzkör­ pern im inneren Laufring 10 durch winkelförmige Bordscheiben 17 und 18 geführt sind. Diese Bordscheiben 17 und 18 bilden an ihrem äußeren Umfang eine Gegenfläche 19 für Radialdichtringe 20 und 21. Jeder dieser Radialdichtringe 20 und 21 ist an seinem äußeren Umfang dich­ tend in den äußeren Laufring 11 eingesetzt und weist jeweils eine Dichtlippe 22 auf, die elastisch vorgespannt auf der Gegenfläche 19 der jeweiligen Bordscheibe 17 bzw. 18 gleitet. Erfindungsgemäß ist die Gegenfläche 19 mit einer Korrosionsschutzbeschichtung 23 aus einer Zink-Nickel-Legierung versehen, die ebenfalls eine Schichtdicke von 0,1 bis 3,0 µm aufweisen soll.In Fig. 2, 9 is a two-row cylindrical roller bearing, which consists of an inner race 10 and an outer race 11 arranged concentrically therewith. The two races 10 and 11 have opposing treads 12 and 13 , between which two rows of cylindrical rolling elements 14 are arranged. To guide the cylindrical rolling elements 14 11 ribs 15 and 16 are provided in the outer race, while the two rows of Wälzkör pern in the inner race 10 are guided by angular flanges 17 and 18 . These flanges 17 and 18 form on their outer circumference a counter surface 19 for radial sealing rings 20 and 21 . Each of these radial sealing rings 20 and 21 is inserted in its outer circumference in the outer race 11 and each has a sealing lip 22 which slides elastically biased on the counter surface 19 of the respective flanged plate 17 and 18 , respectively. According to the invention, the counter surface 19 is provided with a corrosion protection coating 23 made of a zinc-nickel alloy, which should also have a layer thickness of 0.1 to 3.0 μm.

Mit dieser Schutzbeschichtung an der Gegenfläche wird ein Unterrosten der Radialdichtringe 20 und 21 verhindert, das andernfalls die Abdichtung des zweireihigen Zylin­ derrollenlagers zerstören würde. Die auf die Gegenfläche 19 aufge­ brachte z. B. Zink-Nickel-Beschichtung bietet einen guten Korrosions­ schutz und weist eine lange Lebensdauer auf.With this protective coating on the counter surface, rusting of the radial sealing rings 20 and 21 is prevented, which would otherwise destroy the seal of the double-row cylinder roller bearing. The brought up on the counter surface 19 z. B. Zinc-nickel coating offers good corrosion protection and has a long service life.

Schließlich ist noch in Fig. 3 ein zweireihiges Radialkugellager 24 dargestellt, das einen äußeren Laufring 25 und einen inneren Laufring 26 mit dazwischen angeordneten Wälzkörperkränzen 27 und 28 aufweist. Diese Wälzkörperkränze 27 und 28 rollen in rillenförmigen Laufflächen 29 und 30 ab. Jeweils stirnseitig ist im äußeren Laufring 25 ein Radialdichtring 31 bzw. 32 befestigt, dessen beiden Dichtlippen 33 und 34 auf Gegenflächen 35 und 36 des inneren Laufrings 26 gleiten. Diese Gegenflächen 35 und 36 des inneren Laufrings 26 sind erfindungssgemäß mit einer Korrosionsschutzbeschichtung 37 aus einer Zink-Verbindung versehen. Auch in diesem Fall wird ein Unterrosten des Dichtverbands, der andernfalls zum Eindringen von Schmutz in das Innere des Radialku­ gellagers führen würde, verhindert.Finally, a double-row radial ball bearing 24 is shown in FIG. 3, which has an outer race 25 and an inner race 26 with rolling element rings 27 and 28 arranged between them. These rolling element rings 27 and 28 roll in groove-shaped running surfaces 29 and 30 . A radial sealing ring 31 and 32 , the two sealing lips 33 and 34 of which slide on mating surfaces 35 and 36 of the inner race 26, are fastened on each end in the outer race 25 . According to the invention, these counter surfaces 35 and 36 of the inner race 26 are provided with a corrosion protection coating 37 made of a zinc compound. In this case too, rusting of the sealing bandage, which would otherwise lead to the penetration of dirt into the interior of the radial ball bearing, is prevented.

BezugszeichenlisteReference list

11

einreihiges Radialkugellager
single row radial ball bearing

22nd

innerer Laufring
inner race

33rd

äußerer Laufring
outer race

44th

Wälzkörperkranz
Rolling ring

55

Käfig
Cage

66

Korrosionsschutzbeschichtung
Corrosion protection coating

77

Lauffläche von Tread from

22nd

88th

Lauffläche von Tread from

33rd

99

zweireihiges Zylinderrollenlager
double row cylindrical roller bearing

1010th

innerer Laufring
inner race

1111

äußerer Laufring
outer race

1212th

Lauffläche von Tread from

1010th

1313

Lauffläche von Tread from

1111

1414

Reihen von Wälzkörpern
Rows of rolling elements

1515

Bord von On board

1111

1616

Bord von On board

1111

1717th

Bordscheibe
Flanged wheel

1818th

Bordscheibe
Flanged wheel

1919th

Gegenfläche
Counter surface

2020th

Radialdichtring
Radial sealing ring

2121

Radialdichtring
Radial sealing ring

2222

Dichtlippe
Sealing lip

2323

Korrosionsschutzbeschichtung
Corrosion protection coating

2424th

zweireihiges Radialkugellager
double row radial ball bearing

2525th

äußerer Laufring
outer race

2626

innerer Laufring
inner race

2727

Wälzkörperkranz
Rolling ring

2828

Wälzkörperkranz
Rolling ring

2929

Lauffläche
Tread

3030th

Lauffläche
Tread

3131

Radialdichtring
Radial sealing ring

3232

Radialdichtring
Radial sealing ring

3333

Dichtlippe
Sealing lip

3434

Dichtlippe
Sealing lip

3535

Gegenfläche
Counter surface

3636

Gegenfläche
Counter surface

3737

Korrosionsschutzbeschichtung
Corrosion protection coating

Claims (4)

1. Radial- oder Axialwälzlager (9, 24) aus Stahl mit konzentrisch ineinander oder parallel zueinander angeordneten Laufringen (10, 11 bzw. 25, 26) bzw. -scheiben, zwischen deren einander zugewandten Laufflächen (12, 13 bzw. 29, 30) Wälzkörper (14 bzw. 27, 28) abrollen, wobei zumindest einerseits der Wälzkörper (14 bzw. 27, 28) am äußeren Laufring (11 bzw. 25) oder an einer der Laufscheiben ein Dichtring (20, 21 bzw. 31, 32) vorgesehen ist, dessen Dichtlippe (22 bzw. 33, 34) mit einer Gegenfläche (35, 36) des inneren Laufringes (26), mit einer Gegenfläche (19) einer mit dem inneren Laufring (10) verbundenen Bordscheibe (17, 18) oder mit einer Gegenfläche der gegenüerliegenden Laufscheibe zusammenwirkt, wobei die Gegenfläche mit einer Korrosions­ schutzbeschichtung versehen ist, dadurch gekennzeichnet, daß die Gegenfläche (19 bzw. 35, 36) mit einer Korrosionsschutzbeschichtung (23 bzw. 37) aus einer galvanischen Zink -Legierung versehen ist, wobei die Korrosionsschutzbeschichtung (23, 27) eine Schichtdicke aufweist, die in der Größenordnung der Oberflächenrauhigkeit des Wälzlagerbauteils liegt, wobei sie eine Schichtdicke von 0,1 bis 3,0 µm aufweist und daß die Korrosionsschutzbeschichtung (23, 37) eine Chromatierung aufweist.1. Radial or axial roller bearing ( 9 , 24 ) made of steel with concentrically arranged one inside or parallel to the other races ( 10 , 11 or 25 , 26 ) or disks, between their facing treads ( 12 , 13 or 29 , 30 ) Roll the rolling elements ( 14 or 27 , 28 ), whereby at least on the one hand the rolling elements ( 14 or 27 , 28 ) on the outer race ( 11 or 25 ) or on one of the running disks a sealing ring ( 20 , 21 or 31 , 32 ) is provided, the sealing lip ( 22 or 33 , 34 ) of which has a counter surface ( 35 , 36 ) of the inner race ( 26 ), a counter surface ( 19 ) of a flanged disc ( 17 , 18 ) connected to the inner race ( 10 ) or cooperates with a counter surface of the opposing running disc, the counter surface being provided with a corrosion protection coating, characterized in that the counter surface ( 19 or 35 , 36 ) with a corrosion protection coating ( 23 or 37 ) made of a galvanic zinc alloy rsehen, the corrosion protection coating ( 23 , 27 ) has a layer thickness which is in the order of the surface roughness of the rolling bearing component, wherein it has a layer thickness of 0.1 to 3.0 microns and that the corrosion protection coating ( 23 , 37 ) has a chromate coating having. 2. Radial- oder Axialwälzlager nach Anspruch 1, dadurch gekennzeich­ net, daß die Korrosionsschutzbeschichtung (23, 37) aus einer Zink- Eisen-Legierung hergestellt ist.2. Radial or axial roller bearing according to claim 1, characterized in that the anti-corrosion coating ( 23 , 37 ) is made of a zinc-iron alloy. 3. Radial- oder Axialwälzlager nach Anspruch 1, dadurch gekennzeich­ net, daß die Korrosionsschutzbeschichtung (23, 37) aus einer Zink- Nickel-Legierung hergestellt ist.3. Radial or axial roller bearing according to claim 1, characterized in that the anti-corrosion coating ( 23 , 37 ) is made of a zinc-nickel alloy. 4. Radial- oder Axialwälzlager nach Anspruch 1, dadurch gekennzeich­ net, daß die Korrosionsschutzbeschichtung (23, 37) aus einer Zink- Kobalt-Legierung hergestellt ist.4. Radial or axial roller bearing according to claim 1, characterized in that the anti-corrosion coating ( 23 , 37 ) is made of a zinc-cobalt alloy.
DE4142313A 1991-12-20 1991-12-20 Radial or axial roller bearings made of steel Expired - Lifetime DE4142313C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE4142313A DE4142313C2 (en) 1991-12-20 1991-12-20 Radial or axial roller bearings made of steel
DE9117069U DE9117069U1 (en) 1991-12-20 1991-12-20 Radial roller bearings made of steel
CS923700A CZ283740B6 (en) 1991-12-20 1992-12-16 Radial or thrust rolling-contact bearing
KR1019920024439A KR100242577B1 (en) 1991-12-20 1992-12-16 Steel radial rolling bearing
JP4336964A JP2886013B2 (en) 1991-12-20 1992-12-17 Radial or thrust rolling bearings made of steel
RU9292004600A RU2079740C1 (en) 1991-12-20 1992-12-18 Steel rolling bearing
BR9205068A BR9205068A (en) 1991-12-20 1992-12-18 STEEL RADIAL OR AXIAL BEARING BEARING
RO92-01584A RO109771B1 (en) 1991-12-20 1992-12-18 Anticorrosive coating for steel radial or axial ball-bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4142313A DE4142313C2 (en) 1991-12-20 1991-12-20 Radial or axial roller bearings made of steel

Publications (2)

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DE4142313A1 DE4142313A1 (en) 1993-06-24
DE4142313C2 true DE4142313C2 (en) 1998-10-29

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DE4142313A Expired - Lifetime DE4142313C2 (en) 1991-12-20 1991-12-20 Radial or axial roller bearings made of steel
DE9117069U Expired - Lifetime DE9117069U1 (en) 1991-12-20 1991-12-20 Radial roller bearings made of steel

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DE9117069U Expired - Lifetime DE9117069U1 (en) 1991-12-20 1991-12-20 Radial roller bearings made of steel

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JP (1) JP2886013B2 (en)
KR (1) KR100242577B1 (en)
BR (1) BR9205068A (en)
CZ (1) CZ283740B6 (en)
DE (2) DE4142313C2 (en)
RO (1) RO109771B1 (en)
RU (1) RU2079740C1 (en)

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DE19855539A1 (en) * 1998-12-02 2000-06-08 Schaeffler Waelzlager Ohg Wheelset bearings
US7390128B2 (en) 2000-03-16 2008-06-24 Nsk Ltd. Rolling sliding member, process for the production thereof and rolling sliding unit
DE10258241A1 (en) * 2002-12-13 2004-06-24 Ina-Schaeffler Kg Radial bearing comprising inner and outer sleeve prepared with galvanic layer of particular material for being kept safely in position
DE102007003859A1 (en) * 2007-01-26 2008-07-31 Schaeffler Kg Insert roller bearing for e.g. agricultural machinery, has adapter and outer rings made of light metal, and sealing rings arranged between outer ring and adapter rings, where one of adapter ring and clamping ring has holes to insert pins
DE202009012622U1 (en) 2009-09-18 2011-02-10 Hqm Sachsenring Gmbh ball joint
DE102010037586A1 (en) 2009-09-18 2011-03-24 Hqm Sachsenring Gmbh Spherical joint for use in chassis of motor vehicle, has ball supported in swivelable manner in housing or in bearing shell arranged in housing, and component comprising coating made of zinc at ball
DE102010037586B4 (en) * 2009-09-18 2020-11-19 HQM SCHERDEL GmbH Ball joint and process for its manufacture
CN103154543A (en) * 2010-10-07 2013-06-12 开利公司 Clutch bearing, electromagnetic clutch and transport refrigeration unit

Also Published As

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DE9117069U1 (en) 1995-07-20
RO109771B1 (en) 1995-05-30
KR930013510A (en) 1993-07-22
CZ370092A3 (en) 1993-07-14
DE4142313A1 (en) 1993-06-24
JPH05240256A (en) 1993-09-17
JP2886013B2 (en) 1999-04-26
KR100242577B1 (en) 2000-03-02
CZ283740B6 (en) 1998-06-17
BR9205068A (en) 1993-06-22
RU2079740C1 (en) 1997-05-20

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