EP3642500A1 - Wälzlager mit schmiermittel - Google Patents
Wälzlager mit schmiermittelInfo
- Publication number
- EP3642500A1 EP3642500A1 EP18732639.2A EP18732639A EP3642500A1 EP 3642500 A1 EP3642500 A1 EP 3642500A1 EP 18732639 A EP18732639 A EP 18732639A EP 3642500 A1 EP3642500 A1 EP 3642500A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- ring
- vanadium
- molybdenum
- rolling bearing
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 48
- 239000000314 lubricant Substances 0.000 title claims abstract description 43
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 20
- 239000011733 molybdenum Substances 0.000 claims abstract description 20
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 20
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011651 chromium Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000000470 constituent Substances 0.000 claims abstract description 3
- 239000002199 base oil Substances 0.000 claims description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 238000005275 alloying Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920013639 polyalphaolefin Polymers 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 239000010696 ester oil Substances 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/02—Mixtures of base-materials and thickeners
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- F16C33/32—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
- 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
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6633—Grease properties or compositions, e.g. rheological properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
- C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
-
- 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
- F16C2204/40—Alloys based on refractory metals
- F16C2204/44—Alloys based on chromium
-
- 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
- F16C2204/40—Alloys based on refractory metals
- F16C2204/46—Alloys based on molybdenum
-
- 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
- F16C2204/60—Ferrous alloys, e.g. steel alloys
-
- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
-
- 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
- F16C2362/00—Apparatus for lighting or heating
- F16C2362/52—Compressors of refrigerators, e.g. air-conditioners
Definitions
- the invention relates to a rolling bearing with an inner ring and an outer ring and with spatially arranged therebetween rolling elements and lubricant for lubricating and cooling a Wälzcardes between the rolling elements and the respective bearing ring.
- Fast rotating are speeds in excess of one million revolutions per minute, where n * dm, where n is the speed and dm is the mean bearing diameter is.
- fast-rotating means 10,000 revolutions per minute with a mean bearing diameter of 100 mm.
- the object of the present invention is to develop a rolling bearing and in particular to increase the service life of the lubricant contained therein. Description of the invention
- the roller bearing according to the invention comprises an inner ring and an outer ring, which are formed from a ring material, wherein the inner ring on an outer peripheral surface and the outer ring on an inner peripheral surface each have a raceway for guiding rolling elements, wherein the rolling elements roll on the respective track, and wherein a lubricant is arranged spatially between the inner ring and the outer ring, which contacts at least the inner ring and / or the outer ring, wherein the ring material comprises at least the alloying constituents iron, carbon, chromium, molybdenum and vanadium, and wherein a ratio of the weight fractions of Chromium to molybdenum to vanadium 1 to at least 0.8 to at most 1, 5 to at least 0.5 to at most 1, 3.
- a ratio of the weight proportions of molybdenum to vanadium is at least 1 to at most 3.
- the weight fractions of Cr: Mo: V 1: 0.8-1.5: 0.5-1.3.
- the weight fractions of Mo: V 1: 3.
- Oxidation is to be understood as meaning an increase in the flowability of the lubricant or of the base oil contained therein.
- the oxidation of the lubricant is an undesirable process, since the oxidation of the lubricant would lead to a faster bleeding of the lubricant.
- Bleeding is the release of the base oil from the lubricant.
- the targeted formulation of chromium, vanadium and molybdenum within the ring material the oxidation of the lubricant is controlled, whereby hardening is avoided and at the same time a slow and targeted bleeding of the lubricant is realized.
- the lubricant contacts the ring material.
- the ratio of the weight proportions of chromium to molybdenum to vanadium is 1 to at least 1, 1 to at most 1.3, at least 0.65 to at most 0.85.
- the weight fractions of Cr: Mo: V 1: 1, 1 -1, 3: 0.65-0.85.
- This preferred ratio of chromium to molybdenum to vanadium weight ratios further increases the useful life of the lubricant.
- the ratio of the proportions by weight of molybdenum to vanadium is preferably at least 1.25 to at most 1.8.
- the rolling elements are formed from a ceramic material or the annular material.
- the combination of the inner ring and outer ring, which are formed from the annular material according to the invention, with rolling elements made of a ceramic material the need for lubricant is reduced, since the pairing metal-ceramic compared to metal-metal the same geometry and load forms smaller contact surfaces.
- adhesive and abrasive wear processes are inhibited by the material combination of metal-ceramic.
- the invention includes the technical teaching that the lubricant comprises as a base oil a poly- ⁇ -olefin or an ester oil.
- the lubricant preferably comprises as thickener a polyarylurea, a lithium complex soap or a barium complex soap.
- the lubricant is a spindle bearing grease with the specification KEHC3K-50 according to DIN 51825.
- a service temperature range is -50 to 120 ° C. according to DIN 51825.
- a base oil viscosity at 40 ° C. is 22 mm 2 / s according to DIN 51562- 1 .
- the mill penetration (1/10 mm) according to DIN ISO 2137 is 220-250.
- the NLGI grade according to DIN 51818 is 3.
- a dropping point according to DIN ISO 2176 is above 250 ° C.
- the lubricant is a spindle bearing grease with specification KPHC2 / 3K-40 according to DIN 51825.
- a service temperature range is -40 to 120 ° C according to DIN 51825.
- a base oil viscosity at 40 ° C is 25 mm 2 / s according to DIN 51562 -1 .
- the mill penetration (1/10 mm) according to DIN ISO 2137 is 250 - 265.
- the NLGI class according to DIN 51818 is 2 or 3.
- a dropping point according to DIN ISO 2176 is above 220 ° C.
- Figure 1 is a schematic perspective view of a rolling bearing according to the invention, and a schematic partial sectional view of a bearing assembly with the rolling bearing according to Figure 1 and with a shaft.
- an inventive rolling bearing 1 for a - not shown here - machine tool comprises an inner ring 2 and an outer ring 3 and radially between the inner ring 2 and the outer ring 3 arranged balls as rolling elements 6.
- the rolling elements 6 are guided by a cage 8.
- the rolling bearing 1 is designed as a deep groove ball bearing.
- the rolling bearing 1 of Figure 1 supports a shaft 9.
- the shaft 9 is presently designed as a spindle shaft of the machine tool.
- the inner ring 2 has on an outer circumferential surface a raceway 4 for guiding the Wälzkör- per 6.
- the outer ring 3 on an inner circumferential surface on a raceway 5 for guiding the rolling elements 6.
- the rolling elements 6 roll on the respective raceway 4, 5 between the inner ring 2 and the outer ring 3, wherein the rolling elements 6 are formed of a ceramic material.
- a lubricant 7 is arranged spatially between the inner ring 2 and the outer ring 3 for lubricating and cooling the rolling contact between the inner ring 2 and the rolling elements 6 as well as between the outer ring 3 and the rolling elements 6.
- the lubricant 7 contacts both the inner ring 2 and the outer ring 3 and the rolling elements 6.
- the inner ring 2 and the outer ring 3 are formed from a ring material, wherein the ring material comprises at least the alloying elements iron, carbon, chromium, molybdenum and vanadium.
- a ratio of the proportions by weight of chromium to molybdenum to vanadium is 1 to at least 0.8 to at most 1.5, at least 0.5 to at most 1.3.
- a ratio of the weight proportions of molybdenum to vanadium is at least 1 to at most 3.
- the lubricant 7 comprises as base oil a poly- ⁇ -olefin and as thickener a polyaryl urea.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Rolling Contact Bearings (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017113704.1A DE102017113704A1 (de) | 2017-06-21 | 2017-06-21 | Wälzlager mit Schmiermittel |
| PCT/DE2018/100356 WO2018233746A1 (de) | 2017-06-21 | 2018-04-16 | Wälzlager mit schmiermittel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3642500A1 true EP3642500A1 (de) | 2020-04-29 |
Family
ID=62684556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18732639.2A Ceased EP3642500A1 (de) | 2017-06-21 | 2018-04-16 | Wälzlager mit schmiermittel |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3642500A1 (de) |
| JP (1) | JP6884236B2 (de) |
| CN (1) | CN110785571B (de) |
| DE (1) | DE102017113704A1 (de) |
| WO (1) | WO2018233746A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017113701A1 (de) * | 2017-06-21 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Geräusch- und verschleißoptimiertes Wälzlager zur Lagerung einer Welle |
| DE102020114015B3 (de) * | 2020-05-26 | 2021-06-10 | Schaeffler Technologies AG & Co. KG | Turbomaschine für einen Verbrennungsmotor |
| DE102020117116A1 (de) | 2020-06-30 | 2021-12-30 | Schaeffler Technologies AG & Co. KG | Verfahren zur Herstellung eines Lagerringes für ein Spindellager und Spindellager |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001018273A1 (en) * | 1999-09-03 | 2001-03-15 | Nsk Ltd. | Rolling bearing |
| JP2001323939A (ja) * | 2000-05-18 | 2001-11-22 | Nsk Ltd | 転がり軸受 |
| JP2006169565A (ja) * | 2004-12-14 | 2006-06-29 | Nsk Ltd | 転がり支持装置 |
| JP2008057691A (ja) * | 2006-08-31 | 2008-03-13 | Nsk Ltd | 玉軸受 |
| JP2014009714A (ja) * | 2012-06-28 | 2014-01-20 | Nsk Ltd | 転がり軸受 |
| DE102014221305B4 (de) * | 2014-10-21 | 2016-11-03 | Schaeffler Technologies AG & Co. KG | Wälzlager |
-
2017
- 2017-06-21 DE DE102017113704.1A patent/DE102017113704A1/de not_active Withdrawn
-
2018
- 2018-04-16 WO PCT/DE2018/100356 patent/WO2018233746A1/de not_active Ceased
- 2018-04-16 JP JP2019571057A patent/JP6884236B2/ja active Active
- 2018-04-16 EP EP18732639.2A patent/EP3642500A1/de not_active Ceased
- 2018-04-16 CN CN201880041411.1A patent/CN110785571B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020528524A (ja) | 2020-09-24 |
| WO2018233746A1 (de) | 2018-12-27 |
| DE102017113704A1 (de) | 2018-12-27 |
| CN110785571A (zh) | 2020-02-11 |
| CN110785571B (zh) | 2021-07-20 |
| JP6884236B2 (ja) | 2021-06-09 |
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