CN103415603B - Grease composition - Google Patents
Grease composition Download PDFInfo
- Publication number
- CN103415603B CN103415603B CN201280009920.9A CN201280009920A CN103415603B CN 103415603 B CN103415603 B CN 103415603B CN 201280009920 A CN201280009920 A CN 201280009920A CN 103415603 B CN103415603 B CN 103415603B
- Authority
- CN
- China
- Prior art keywords
- alkyl
- cyclohexyl
- lubricant composition
- formula
- thickening agent
- 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.)
- Active
Links
Classifications
-
- 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
- C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
- C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
-
- 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
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
- C10M2203/0206—Well-defined aliphatic compounds 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
- 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
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
- C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids 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
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; 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
-
- 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
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides a grease composition which comprises a thickening agent and a base oil, wherein the thickening agent is a diurea compound represented by formula (1) and the proportion of the thickening agent in the grease composition is 3-20 mass%. (In formula (1), R2 represents a diphenylmethane group. R1 and R3 may be the same or different and each represent a cyclohexyl group or a linear or branched C8-22 alkyl group. In formula (1), the proportion of the number of moles of cyclohexyl groups to the total number of moles of cyclohexyl groups and alkyl groups [{(number of cyclohexyl groups)/((number of cyclohexyl groups)+(number of alkyl groups))}100] is 70-80 mol%.)
Description
Technical field
The present invention relates to one kind can be used for rolling bearing, gear, ball-screw, linear motion bearing, cam and joint
Etc. the lubricant composition of the lubrication of various machine components.
Background technology
In recent years, from from the viewpoint of cutting down and consume the energy, with automobile as representative, electrical equipment used in each industry or
Machine components seek high efficiency, carry out the various researchs such as lightweight, the improvement of structure of part.Particularly with rotary body
Machine components due to stir lubricant, therefore, its resistance causes energy loss.Therefore, seek a kind of low lubrication of stirring resistance
Agent.
For example in engine oil and gear box oil, in order to reduce the stirring resistance of lubricating oil, proposition has lowering viscousity (non-
Patent documentation 1 and 2).However, these countermeasures cause the oil film breakdown of the lowering viscousity due to oil, lubrication portion surface is caused
Damage.
Even if due to grease have can long-time without can also lubricate to fat, sealing device is simple, requirement is few, let out
What dew caused is stained few grade aspect more excellent than lubricating oil, therefore, can be used for many machine components with rotary body.However,
As grease is the lubricant of the semi-solid containing base oil and thickening agent, therefore compared with lubricating oil, apparent viscosity height,
Stirring resistance is big.
So far, in order to reduce the stirring resistance of grease, will reduce as much as possible in the same manner as the situation of lubricating oil
The kinematic viscosity of base oil is used as common method.For example in patent documentation 1, proposition has a kind of use containing ad hoc structure
The lubricant composition of the base oil of diester oil, it is 20.16mm that the kinematic viscosity at 40 DEG C is recorded in embodiment2The two of/s
Ester oil.
But, if the kinematic viscosity of grease base plinth oil declines, although stirring resistance is reduced, and with regard to lubricating oil
It is described similarly to produce oil film breakdown, it is impossible to meet the sufficient life-span, for example peel off life-span, the life-span of killing (seizure
Life), the base oil that can be used is limited.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2009-132754 publications
Non-patent literature
Non-patent literature 1：Distant mountain, big gloomy, cylinder well, Yamamoto：《Low friction gasoline engine machine oil-lowering viscousity and friction are adjusted
Whole dose of effect》, central authorities of Toyota institute R ＆ D summaries, Vol.32, No.4 (1997.12)
Non-patent literature 2：Jin Ben, u'eno, piece mountain, assistant rattan：《The technology trend and exploitation commodity of transmission commodity》, NTN
TECHNICAL REVIEW, No.75 (2007)
The content of the invention
Invention problem to be solved
The invention solves the problems that problem be, there is provided it is a kind of reduce stirring resistance lubricant composition.
In addition, the problem of the present invention is, there is provided a kind of machine components for having enclosed the lubricant composition.
Means for solving the problems
The present inventor etc. are solved by for the appropriate thickening agent of above-mentioned project selection.
That is, according to the present invention, there is provided lubricant composition below and machine components：
1. a kind of lubricant composition, which contains thickening agent and base oil, and the thickening agent is two shown in following formula (1)
The ratio of the amounts of thickener in carbamide compound, and lubricant composition is 3～20 mass %.
[chemical formula 1]
Formula (1)
In formula (1), R2Represent diphenylmethyl alkyl.R1And R3Cyclohexyl or carbon number 8 can be represented with identical or different
～22 straight or branched alkyl.In formula (1), the molal quantity of cyclohexyl is relative to cyclohexyl and the ratio of the total mole number of alkyl
((hexamethylene radix)/(hexamethylene radix+alkyl number) × 100) are 70～80 moles of %.
2. the lubricant composition as described in above-mentioned 1, wherein, thickening agent is that alkyl is carbon number 16～20 in formula (1)
Straight chained alkyl two carbamide compounds.
3. the lubricant composition as described in above-mentioned 1 or 2, which is used for rolling bearing, gear, ball-screw, linear motion
Bearing, cam and joint.
4. a kind of machine components, which has enclosed the lubricant composition any one of above-mentioned 1～3.
Invention effect
According to the present invention it is possible to provide a kind of lubricant composition for reducing stirring resistance.The grease group of the present invention
Compound will not reduce the kinematic viscosity of base oil, can suppress the generation of oil film breakdown and fully meet the long-life.
Specific embodiment
Thickening agent
As the thickening agent of grease, it is however generally that, more using the lubricating life and two ureas with versatility for showing length
Type grease.In the present invention, the two urea types manufactured by coordinating cycloaliphatic amines and aliphatic amine with specific molar ratio are selected
Grease.This two ureas type grease is represented by following formula (1)：
[chemical formula 2]
In formula (1), R2Represent diphenylmethyl alkyl.It is preferred that 4,4- diphenyl methanes.R1And R3Can be with identical or different, table
Show cyclohexyl or carbon number 8～22, the preferably straight or branched alkyl of preferred carbon number 16～20, direct-connected alkyl.Formula (1)
In, ratio ((hexamethylene radix)/(the hexamethylene radix+alkyl of the molal quantity of cyclohexyl relative to cyclohexyl and the total mole number of alkyl
Number) × 100) it is 70～80 moles of %.
By using above-mentioned thickening agent, the amount of thickening agent can be reduced.By in base oil containing the above-mentioned of specified quantitative
Thickening agent, can reduce the stirring resistance of grease.Specifically, grease composition of the content of thickening agent relative to the present invention
The quality of thing be 3～20 mass %, preferably 5～15 mass %.
In addition, metal soap, bentonite, silica gel are unsatisfactory for thermostability, that is, the bearing lubrication life-span being unsatisfactory under high temperature.Separately
Outward, although fluorine system thickening agent meets thermostability but very expensive, shortage versatility.
Base oil
The species and kinematic viscosity of the base oil in the present invention is not particularly limited.Base oil is selected as needed can
Species and kinematic viscosity.But, the kinematic viscosity as base oil contained in the grease as rolling bearing at 40 DEG C,
Preferably 10～200mm2/ s, more preferably 15～100mm2/s.Base oil can be used alone one kind, it is also possible to and with 2 kinds with
On.
As the species of the base oil that can be used in the present invention, substantially there are mineral oil, artificial oil.As the example of artificial oil
Son, can enumerate the synthesis hydrocarbon representated by ester system artificial oil representated by diester oil, polyol ester, poly-alpha-olefin, polybutene
Ether system artificial oil, the polyglycols system artificial oil representated by polypropylene glycol, silicone-based synthesis representated by oil, alkyl diphenyl base ether
Oil, fluorine system artificial oil.Wherein, due to artificial oil excellent heat resistance, therefore it is preferred that.More preferably synthetic hydrocarbon oil and ester system artificial oil.If
Containing these base oils, then the stirring resistance under low temperature can be further reduced.As synthetic hydrocarbon oil, preferred poly-alpha-olefin.Make
For ester system artificial oil, preferred pentaerythritol ester, trihydroxymethylpropanyl ester.
Additive
The lubricant composition of the present invention can contain all kinds of additives as needed.As an example, amine can be enumerated
The inorganic passivants such as the antioxidant representated by system, phenol system, sodium nitrite, sulfonate system, succinic acid system, amine system, carboxylate institute
The antirust agent of representative.Corrosion inhibitor for metal representated by benzotriazole, oiliness improver representated by fatty acid, fatty acid ester, phosphate ester,
Anti-wear agent, extreme pressure agent representated by phosphorus system, sulfur system, organic metal system, the solid profit representated by oxidized metal salt and molybdenum bisuphide
Lubrication prescription etc..The usage amount of these compositions is usually 0.1～20 mass % or so, preferably 0.5～10 mass %.
Mixing consistency
The mixing denseness of the lubricant composition of the present invention can be adjusted according to application target, and preferably 200～440.
When being particularly used for bearing, if excessively soft, worry leakage, it is therefore preferable that being 200～350.
The lubricant composition of the present invention can be enclosed various machine components and be used.As various machine components, can
To enumerate：Rolling bearing, gear, ball-screw, linear motion bearing, cam and joint etc..Specifically, industry can be enumerated
Machinery various motor, the various motor of office equipment, the various motor of automobile, car electrics part or subsidiary engine part
Gear used in decelerator or accelerator of rolling bearing Deng used in, windmill or robot, automobile etc. etc., it is electronic
Ball-screw used in servo steering system or work mechanism etc., the straight line used in industry machine or electronic equipment etc.
Motion bearings, cam or joint.
Embodiment 1
Test preparation of greases
The lubricant composition of embodiment and comparative example is prepared using the thickening agent shown in table 1 and base oil.Specifically,
The amine reaction of 4,4- methyl diphenylene diisocyanates and regulation is made in base oil, after intensification, cooling, is kneaded with 3 roller mills,
Obtain the lubricant composition of embodiment 1 and 2 and comparative example 1～9.Based on oil, using surveying according to JIS K222023.
The fixed kinematic viscosity at 40 DEG C is 70.2mm2The synthetic hydrocarbon oil of/s is poly-alpha-olefin oil or the kinematic viscosity at 40 DEG C
For 11.6mm2The diester oil of/s is di-n-octyl sebacate.Amounts of thickener is with the mixing denseness (test method of lubricant composition
JIS K22207.) it is that 300 mode is adjusted.
Compositionss made above are evaluated by following test methods.Show the result in table 1.
Test method
Stirring resistance (flow graph)
Test carries out surveying foot using the determination of viscoelasticity device Physica MCR301 of Anton Paar company systems.
The coated test grease between the plate of regulation, after being set as the distance between plates for specifying, it is unnecessary that removing is oozed out
Grease.Then, read shear stress when being rotated with following shown shear rates.
Experimental condition is as follows.
Shear rate：1～104s-1
Test temperature：25℃
Distance between plates：0.2mm
Board diameter：25mm
Evaluate
Calculate shear rate 1～104s-1When shear stress meansigma methodss as measurement result.
It is qualified less than 2000Pa
More than 2000Pa is unqualified
Table 1
The shear stress (=stirring resistance) of the lubricant composition of the embodiment 1 and 2 of the two urea thickening agents containing the present invention
It is low and good, on the other hand, it is not that the shear stress of the comparative example 1～9 of two ureas thickening agent of the invention is high.In addition, comparative example 9 with
Oil based on low viscous diester oil, the two urea thickening agents due to not being the present invention, therefore, shear stress is high.
Claims (3)
1. a kind of lubricant composition, which contains thickening agent and base oil, and the thickening agent is two ureas shown in following formula (1)
The ratio of the amounts of thickener in compound, and lubricant composition is 3～20 mass %, and the base oil is from by Ji Wusi
The artificial oil selected in the group of alcohol ester, trihydroxymethylpropanyl ester and their mixture composition,
In formula (1), R2Represent diphenylmethyl alkyl, R1And R3The straight of cyclohexyl or carbon number 18 can be represented with identical or different
Alkyl group, in formula (1), the molal quantity of cyclohexyl relative to cyclohexyl and the ratio of the total mole number of alkyl, i.e. (hexamethylene radix)/
(hexamethylene radix+alkyl number) × 100 are 70～80 moles of %.
2. a kind of lubricant composition in rolling bearing, gear, ball-screw, linear motion bearing, cam or joint should
With, the lubricant composition contains thickening agent and base oil, and the thickening agent is two carbamide compounds shown in following formula (1),
And the ratio of the amounts of thickener in lubricant composition be 3～20 mass %, the base oil be from by pentaerythritol ester,
The artificial oil selected in the group of trihydroxymethylpropanyl ester and their mixture composition,
In formula (1), R2Represent diphenylmethyl alkyl, R1And R3The straight of cyclohexyl or carbon number 18 can be represented with identical or different
Alkyl group, in formula (1), the molal quantity of cyclohexyl relative to cyclohexyl and the ratio of the total mole number of alkyl, i.e. (hexamethylene radix)/
(hexamethylene radix+alkyl number) × 100 are 70～80 moles of %.
3. a kind of machine components, which has enclosed the lubricant composition described in the claims 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011035734A JP2012172066A (en) | 2011-02-22 | 2011-02-22 | Grease composition |
| JP2011-035734 | 2011-02-22 | ||
| PCT/JP2012/054256 WO2012115141A1 (en) | 2011-02-22 | 2012-02-22 | Grease composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103415603A CN103415603A (en) | 2013-11-27 |
| CN103415603B true CN103415603B (en) | 2017-04-26 |
Family
ID=46720917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280009920.9A Active CN103415603B (en) | 2011-02-22 | 2012-02-22 | Grease composition |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130310292A1 (en) |
| JP (1) | JP2012172066A (en) |
| KR (1) | KR20130118936A (en) |
| CN (1) | CN103415603B (en) |
| DE (1) | DE112012000940T5 (en) |
| WO (1) | WO2012115141A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009270058A (en) * | 2008-05-09 | 2009-11-19 | Kyodo Yushi Co Ltd | Grease composition for constant-velocity joint and constant-velocity joint |
| JP6268642B2 (en) | 2014-03-12 | 2018-01-31 | 協同油脂株式会社 | Grease composition and grease bearing wheel bearing |
| JP6348050B2 (en) * | 2014-11-05 | 2018-06-27 | 日本グリース株式会社 | Biodegradable grease composition for wind power generator |
| WO2016125859A1 (en) | 2015-02-05 | 2016-08-11 | 出光興産株式会社 | Grease and method for manufacturing grease |
| JP6750215B2 (en) * | 2015-12-17 | 2020-09-02 | 日本精工株式会社 | Telescopic shaft for vehicle steering shaft and electric power steering device |
| WO2017171020A1 (en) * | 2016-03-31 | 2017-10-05 | 出光興産株式会社 | Lubricating oil composition, and precision reduction gear using same |
| JP6885686B2 (en) | 2016-07-26 | 2021-06-16 | 協同油脂株式会社 | Grease composition |
| JP2018065971A (en) * | 2016-10-21 | 2018-04-26 | 株式会社ジェイテクト | A grease composition and a roller bearing filled with grease composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952401A (en) * | 2008-02-22 | 2011-01-19 | 协同油脂株式会社 | Grease composition and bearings |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2979274B2 (en) * | 1992-06-29 | 1999-11-15 | 日本精工株式会社 | Grease composition for high-speed rolling bearings |
| JP2008286230A (en) * | 2007-05-15 | 2008-11-27 | Nsk Ltd | Rolling bearing for motor |
| JP2009108263A (en) * | 2007-10-31 | 2009-05-21 | Nsk Ltd | Grease composition and rolling bearing |
| JP5191219B2 (en) * | 2007-11-28 | 2013-05-08 | コスモ石油ルブリカンツ株式会社 | Grease composition |
| JP5330773B2 (en) * | 2008-07-07 | 2013-10-30 | 昭和シェル石油株式会社 | Grease composition for resin lubrication |
-
2011
- 2011-02-22 JP JP2011035734A patent/JP2012172066A/en active Pending
-
2012
- 2012-02-22 KR KR1020137020084A patent/KR20130118936A/en not_active Application Discontinuation
- 2012-02-22 DE DE112012000940T patent/DE112012000940T5/en not_active Ceased
- 2012-02-22 US US13/983,665 patent/US20130310292A1/en not_active Abandoned
- 2012-02-22 WO PCT/JP2012/054256 patent/WO2012115141A1/en active Application Filing
- 2012-02-22 CN CN201280009920.9A patent/CN103415603B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952401A (en) * | 2008-02-22 | 2011-01-19 | 协同油脂株式会社 | Grease composition and bearings |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130310292A1 (en) | 2013-11-21 |
| WO2012115141A1 (en) | 2012-08-30 |
| DE112012000940T5 (en) | 2013-11-21 |
| JP2012172066A (en) | 2012-09-10 |
| CN103415603A (en) | 2013-11-27 |
| KR20130118936A (en) | 2013-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103415603B (en) | Grease composition | |
| EP2489721B1 (en) | Use of a grease composition for bearing of wind power generator | |
| JP5646859B2 (en) | Lubricating oil composition for continuously variable transmission | |
| EP1930400B1 (en) | Lubricant composition | |
| EP2687584B1 (en) | Grease composition | |
| CN101952401B (en) | Grease composition and bearings | |
| CN107406793B (en) | Grease composition | |
| EP3078729A1 (en) | Grease composition for constant velocity joints and constant velocity joint in which said grease composition is sealed | |
| CN103210070B (en) | Grease composition | |
| JP2009029876A (en) | Grease composition and rolling bearing | |
| EP3178910B1 (en) | Grease composition | |
| JP6857985B2 (en) | Lithium composite soap-based grease composition | |
| JPH09157679A (en) | Grease composition | |
| JP2006316082A (en) | Grease composition and grease-sealed rolling bearing | |
| KR102312591B1 (en) | Hybrid Lubricant Composition | |
| JP6940454B2 (en) | Grease composition for rolling bearings | |
| WO2023182532A1 (en) | Grease composition | |
| JP6887758B2 (en) | Grease composition | |
| JP2016020481A (en) | Grease composition | |
| JP2008298221A (en) | Rolling bearing for fuel injection control device | |
| JP2008298222A (en) | Rolling bearing for electric fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |