WO2015058759A1 - Bague de palier à roulement - Google Patents

Bague de palier à roulement Download PDF

Info

Publication number
WO2015058759A1
WO2015058759A1 PCT/DE2014/200523 DE2014200523W WO2015058759A1 WO 2015058759 A1 WO2015058759 A1 WO 2015058759A1 DE 2014200523 W DE2014200523 W DE 2014200523W WO 2015058759 A1 WO2015058759 A1 WO 2015058759A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling bearing
bearing ring
coating
rolling
nickel
Prior art date
Application number
PCT/DE2014/200523
Other languages
German (de)
English (en)
Inventor
Wolfgang Braun
Vasilios Bakolas
Peter Schuster
Original Assignee
Schaeffler Technologies AG & Co. 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 Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2015058759A1 publication Critical patent/WO2015058759A1/fr

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
    • F16C33/30—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
    • F16C33/583—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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/20—Thermal properties
    • F16C2202/28—Shape memory 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/52—Alloys based on nickel, e.g. Inconel
    • 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
    • F16C2326/00—Articles relating to transporting
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/30—Ships, e.g. propelling shafts and bearings therefor
    • 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

Definitions

  • the invention relates to a rolling bearing ring, which has a coated raceway for rolling elements, that is to say a coating in the region of the rolling contact.
  • a roller bearing ring with a coated raceway is known, for example, from DE 10 201 1075 497 A1.
  • a further coating in a surface section of the bearing ring provided for receiving a seal is provided in this case, which improves the resistance to aggressive media as a special coating.
  • coated bearing rings are disclosed in DE 10 2010 015 155 A1 and in DE 10 2007 042 372 A1.
  • different coatings are used for electrical insulation or to prevent fretting corrosion.
  • the coatings are in both cases in surface areas of the bearing rings outside of the rolling contact.
  • a rolling bearing is known, which is particularly intended for use at higher temperatures. At least one of the two bearing rings of this rolling bearing has a phosphating, in particular a manganese phosphating on.
  • the rolling elements can also have a coating, for example a chrome plating or an oxide-ceramic coating.
  • uncoated components made of suitable metallic or non-metallic materials can be used instead of coated components.
  • Conventional hybrid bearings have ceramic rolling elements and steel bearing rings, for example corrosion-resistant steel.
  • the object of the invention is to further develop a roller bearing in relation to the cited prior art, in particular with regard to the possible applications under unfavorable environmental conditions.
  • This object is achieved by a rolling bearing ring with the features of claim 1.
  • This rolling bearing ring has a coating made of a nickel-titanium alloy in the region of its race intended for contacting rolling elements.
  • the rolling bearing ring is particularly suitable for use in a lack-lubricated, in particular water-lubricated, for example seawater lubricated, rolling bearing.
  • the rolling elements, in particular balls, of a bearing ring according to the invention having rolling bearing are made according to a possible embodiment of a ceramic material.
  • the nickel-titanium alloy Compared to a ceramic material as a material of a bearing ring, the nickel-titanium alloy has the advantage of a much lower modulus of elasticity, that is, a higher elastic compliance. As a result, a larger surface portion for power transmission between the bearing ring and a rolling element, such as a ball, used, which is synonymous with a reduced contact pressure. At the same time nickel-titanium alloys are characterized by a high corrosion resistance. Depending on the application and base material of the bearing ring and the non-magnetic properties of nickel-titanium alloys may be beneficial.
  • the coating has, according to an advantageous embodiment, a nickel content of more than 50%. Percentages of the coating are always to be understood as percent by weight.
  • Nitinol 60 (60% Ni, 40% Ti) is preferably used as the nickel-titanium alloy. It is a material with shape memory properties. The surface hardness of this material is in a preferred embodiment of the rolling bearing ring at least 58 HRC. A surface hardness up to 62 HRC is achievable.
  • the coated rolling bearing ring can be subjected to a heat treatment to increase its hardness.
  • the nickel-titanium alloy is applied in the form of a metal strip on the base material of the bearing ring. This can be done in the form of a press-fitting of a thin ring of nickel-titanium alloy in a steel body.
  • the nickel-titanium coating is a metal layer formed by powder metallurgy.
  • the production of such a layer can be effected, for example, by sintering powder metallurgical nitinol ( ⁇ 60) onto a steel base body.
  • gleitersvon is a metal powder injection molding into consideration, with which a near-net shape shaping on a steel base body is possible.
  • pre-alloyed Ni-Ti powder is compacted by hot isostatic pressing on the steel base body.
  • the application of the nickel-titanium coating on the base material is also possible by friction welding.
  • a coating is produced by means of transfer by plastic deformation under temperature and friction stress.
  • the use of a titanium-containing alloy for friction coating is known in principle, for example, from DE 10 2006 055 994 A1.
  • Another method for friction coating is disclosed in DE 10 2012 001 779 A1.
  • the thickness of the nickel-titanium alloy depending on the depth of the introduced during operation of the rolling bearing pressure can be interpreted. Typical layer thicknesses of the nickel-titanium alloy are in the range between 0.5 mm and 5 mm.
  • the nickel-titanium layer is relatively thin in any case.
  • the thickness of the nickel-titanium coating is not more than 5% of the underlying thickness of the base material.
  • either rolling elements made of steel or rolling elements made of ceramic can roll on the roller bearing ring.
  • rolling elements made of steel or rolling elements made of ceramic can roll on the roller bearing ring.
  • a ceramic material from which the rolling elements can be produced is, for example, silicon nitride.
  • the modulus of elasticity of the ceramic rolling elements used in the rolling bearing is more than twice as large, in particular more than 2.5 times as large as the modulus of elasticity of the coating of the rolling bearing ring.
  • the rolling bearing ring is thus in any case suitable for use under unfavorable lubrication conditions.
  • the at least one designed according to the invention rolling bearing ring having rolling bearing can either have a cage for guiding the rolling elements or be designed as a full complement bearing.
  • a roller bearing cage may optionally be made of metal, in particular of corrosion-resistant steel, or of plastic, in particular a suitable for use at higher temperatures plastic such as PEEK (polyetheretherketone).
  • a preferred field of application of the rolling bearing ring is also so-called media-lubricated bearings.
  • Media lubrication generally refers to contacting the rolling contact surfaces with a medium which is not primarily intended for lubrication. This may be, for example, a fluid which is conveyed in a pump equipped with the roller bearing or a compressor.
  • a roller bearing under water, especially in seawater, which is not or only partially sealed, is also considered to be the medium-lubricated operation of a roller bearing.
  • Applications of the rolling bearing ring are given for example in the chemical and pharmaceutical industries, in the medical field, as well as in the food industry.
  • FIG. 1 shows a cross section through a coated with a nickel-titanium alloy rolling bearing ring
  • Fig. 2 shows another embodiment of a nickel-titanium-coated rolling bearing ring in a representation analogous to Figure 1 Detailed Description of the drawing
  • a rolling bearing ring 1 of a rolling bearing not shown is made up of a base body 2 made of steel and a coating 3 applied thereon made of a nickel-titanium alloy, namely nitinol 60.
  • the surface of the coating 3 forms a raceway 4 for rolling elements, not shown, namely cylindrical rollers in the embodiment of Figure 1 or balls in the embodiment of Figure 2.
  • the base body 2 is produced by machining, for example, from a common bearing steel such as 100Cr6 or from a stainless steel such as that available under the name Cronidur 30 (X 30 CrMoN 15 1) available steel with the material number 1 .4108. Notwithstanding the examples outlined in FIGS. 1 and 2, the main body 2 can also be produced by non-cutting shaping, in particular from sheet metal.
  • the rolling bearing ring 1 can not only, as in the two embodiments, be a bearing ring of a radial bearing, but also a component of another rolling bearing type, for example an angular contact ball bearing, a tapered roller bearing, or a thrust bearing. Equipped with the rolling bearing ring 1 bearing can be designed as a single or multi-row bearing.
  • the nickel-titanium alloy used for producing the coating 3, namely nitinol 60 initially exists as a metal strip. Between this metal ring in the form of a thin ring band and the base body 2 made of steel, a press fit is produced. This can be done, for example, by - in the case of the formation of the rolling bearing ring 1 as an inner ring - of the coating 3 forming nickel-titanium ring is pressed or - if the roller bearing ring 1 is an outer ring - the nickel-titanium ring is pressed. Post-processing of the raceway 4 after assembly of the rolling bearing ring 1 is not required.
  • the coating 3 of the roller bearing ring 1 according to FIG. 1 is designed as a friction coating.
  • the application of the coating 3 to the base body 2 takes place, for example, by means of a rotating, vibrating and / or vibrating, typically pin-shaped applicator element, which contacts the base body 2 with a defined contact pressure.
  • the coating 3 which is also formed here from nitinol 60, produced by metal powder injection molding. After the application of the coating 3 on the base body 2, a finish machining is required at best, which has only a minimal influence on the contours of the rolling bearing ring 1.
  • an inner ring as a rolling bearing ring 1
  • a shaft in the form of a solid shaft or a hollow shaft, on which the coating 3 is located directly
  • a housing may be provided in which there is a bore, the wall of which is coated directly with the coating 4 of the nickel-titanium alloy Nitinol 60 forming the raceway 4.
  • the rolling elements rolling on the roller bearing ring 1, namely cylindrical rollers, are made of steel, for example.
  • rolling on the roller bearing ring 1 for example, ceramic balls.
  • the ceramic balls of the roller bearing having the rolling bearing ring 1 are made of silicon nitride, for example, and have a modulus of elasticity of at least 300 GPa, for example, 310 GPa.
  • the steel used in comparison to conventionally used roller bearing rings provides a low modulus of elasticity of the nickel-titanium alloy forming the coating 3 (approximately 14 GPa) for low pressures in the rolling contact, even with approximately punctiform contact between the rolling element and the rolling bearing ring 1 , And thus for a reliable operation and low wear even with unfavorable lubrication conditions and / or extreme speeds of the rolling bearing ring 1 having rolling bearing.

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

Abstract

Bague (1) de palier à roulement qui comporte un corps de base (2) sur lequel se trouve un revêtement (3) formant un chemin de roulement (4), constitué d'un alliage nickel-titane. La bague (1) de palier à roulement pourvue d'un tel revêtement (3) présente, par rapport à une bague de palier à roulement en acier exempte de revêtement, des avantages tant en ce qui concerne l'élasticité du chemin de roulement (4) qu'en ce qui concerne la protection contre la corrosion.
PCT/DE2014/200523 2013-10-25 2014-09-30 Bague de palier à roulement WO2015058759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310221687 DE102013221687A1 (de) 2013-10-25 2013-10-25 Wälzlagerring
DE102013221687.4 2013-10-25

Publications (1)

Publication Number Publication Date
WO2015058759A1 true WO2015058759A1 (fr) 2015-04-30

Family

ID=51903742

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200523 WO2015058759A1 (fr) 2013-10-25 2014-09-30 Bague de palier à roulement

Country Status (2)

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DE (1) DE102013221687A1 (fr)
WO (1) WO2015058759A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11389870B2 (en) * 2019-12-20 2022-07-19 SKF Aerospace France S.A.S Ring for a connection element, a connection element and corresponding manufacturing method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179488B (zh) * 2015-07-15 2017-11-10 柳州市双铠工业技术有限公司 无密封式轴承装配方法
CN105065471B (zh) * 2015-07-15 2017-11-10 柳州市双铠工业技术有限公司 一种无密封式轴承装配方法
CN108411160B (zh) * 2018-03-28 2020-09-29 清华大学 具有自适应特性的自润滑轴承及其制备方法
DE102022117033A1 (de) * 2022-07-08 2024-01-11 Schaeffler Technologies AG & Co. KG Dünnringlager und Computertomograph mit einem solchen Dünnringlager

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324441A (en) * 1980-10-24 1982-04-13 Rouverol William S Rolling contact element
JP2006083894A (ja) * 2004-09-14 2006-03-30 Ntn Corp ロケットターボポンプ用軸受
DE102006055994A1 (de) 2006-11-28 2008-05-29 Mahle International Gmbh Verfahren zum Aufbringen einer Beschichtung auf ein Bauteil sowie Bauteil
DE102007042372A1 (de) 2007-09-06 2009-04-02 Schaeffler Kg Lagerring
DE102008024055A1 (de) * 2008-05-16 2009-11-19 Schaeffler Kg Lagerring und Lager mit funktionsbezogenem Werkstoffverbund
WO2011120866A1 (fr) * 2010-04-01 2011-10-06 Aktiebolaget Skf Bague d'un palier lisse ou d'un palier à roulement
DE102010015155A1 (de) 2010-04-16 2011-10-20 Schaeffler Technologies Gmbh & Co. Kg Elektrisch isolierender Lagerring, insbesondere für ein Wälzlager
US8182741B1 (en) * 2009-08-20 2012-05-22 The United States Of America As Represented By The National Aeronautics And Space Administration Ball bearings comprising nickel-titanium and methods of manufacture thereof
DE102011075497A1 (de) 2011-05-09 2012-11-15 Schaeffler Technologies AG & Co. KG Verfahren zur Verbesserung des Korrosionsschutzes bei Wälzlagern und nach diesem Verfahren hergestelltes Wälzlager
DE102011080132A1 (de) 2011-07-29 2013-01-31 Schaeffler Technologies AG & Co. KG Wälzlager, insbesondere für den Einsatz bei höheren Temperaturen
DE102012001779A1 (de) 2012-01-31 2013-08-01 Hochschule Für Angewandte Wissenschaften - Fachhochschule Kempten Verfahren und Vorrichtung zum Reibauftragsbeschichten einer Oberfläche eines Werkstücks

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
WO2001012359A1 (fr) * 1999-08-19 2001-02-22 Nitinol Technologies, Inc. Element de roulement a billes en nitinol et son procede de fabrication
US8377373B1 (en) * 2009-08-20 2013-02-19 The United States Of America Compositions comprising nickel-titanium, methods of manufacture thereof and articles comprising the same
DE102010006423A1 (de) * 2010-02-01 2011-08-04 Schaeffler Technologies GmbH & Co. KG, 91074 Wälzlager

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324441A (en) * 1980-10-24 1982-04-13 Rouverol William S Rolling contact element
JP2006083894A (ja) * 2004-09-14 2006-03-30 Ntn Corp ロケットターボポンプ用軸受
DE102006055994A1 (de) 2006-11-28 2008-05-29 Mahle International Gmbh Verfahren zum Aufbringen einer Beschichtung auf ein Bauteil sowie Bauteil
DE102007042372A1 (de) 2007-09-06 2009-04-02 Schaeffler Kg Lagerring
DE102008024055A1 (de) * 2008-05-16 2009-11-19 Schaeffler Kg Lagerring und Lager mit funktionsbezogenem Werkstoffverbund
US8182741B1 (en) * 2009-08-20 2012-05-22 The United States Of America As Represented By The National Aeronautics And Space Administration Ball bearings comprising nickel-titanium and methods of manufacture thereof
WO2011120866A1 (fr) * 2010-04-01 2011-10-06 Aktiebolaget Skf Bague d'un palier lisse ou d'un palier à roulement
DE102010015155A1 (de) 2010-04-16 2011-10-20 Schaeffler Technologies Gmbh & Co. Kg Elektrisch isolierender Lagerring, insbesondere für ein Wälzlager
DE102011075497A1 (de) 2011-05-09 2012-11-15 Schaeffler Technologies AG & Co. KG Verfahren zur Verbesserung des Korrosionsschutzes bei Wälzlagern und nach diesem Verfahren hergestelltes Wälzlager
DE102011080132A1 (de) 2011-07-29 2013-01-31 Schaeffler Technologies AG & Co. KG Wälzlager, insbesondere für den Einsatz bei höheren Temperaturen
DE102012001779A1 (de) 2012-01-31 2013-08-01 Hochschule Für Angewandte Wissenschaften - Fachhochschule Kempten Verfahren und Vorrichtung zum Reibauftragsbeschichten einer Oberfläche eines Werkstücks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11389870B2 (en) * 2019-12-20 2022-07-19 SKF Aerospace France S.A.S Ring for a connection element, a connection element and corresponding manufacturing method

Also Published As

Publication number Publication date
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