CN110036098A - Lubricant composition and rolling bearing - Google Patents

Lubricant composition and rolling bearing Download PDF

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Publication number
CN110036098A
CN110036098A CN201780073888.3A CN201780073888A CN110036098A CN 110036098 A CN110036098 A CN 110036098A CN 201780073888 A CN201780073888 A CN 201780073888A CN 110036098 A CN110036098 A CN 110036098A
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China
Prior art keywords
thickener
mass
soap
lubricant composition
urea
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Granted
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CN201780073888.3A
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CN110036098B (en
Inventor
浅井佑介
榎本祐介
高田真太郎
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MinebeaMitsumi Inc
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MinebeaMitsumi Inc
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Priority claimed from PCT/JP2017/043140 external-priority patent/WO2018101432A1/en
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    • 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
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
    • C10M2205/163—Paraffin waxes; Petrolatum, e.g. slack wax 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
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
    • C10M2207/1236—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic 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
    • C10M2207/10—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
    • C10M2207/127—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 polycarboxylic
    • C10M2207/1276—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 polycarboxylic 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
    • C10M2207/10—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
    • C10M2207/128—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 containing hydroxy groups; Ethers thereof
    • C10M2207/1285—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 containing hydroxy groups; Ethers thereof used as thickening agents
    • 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/0606—Perfluoro polymers 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • C10M2213/0626—Polytetrafluoroethylene [PTFE] used as thickening agents
    • 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
    • C10M2215/08—Amides
    • C10M2215/0813—Amides used as thickening agents
    • 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
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2290/00—Mixtures of base materials or thickeners or additives
    • C10M2290/10—Thickener
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • 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
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • 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
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2030/08—Resistance to extreme temperature
    • 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
    • C10N2030/76—Reduction of noise, shudder, or vibrations
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

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  • 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

A kind of lubricant composition and the rolling bearing for being sealed with the lubricant composition, the lubricant composition is to mix fluorine system lubricating grease, urea system lubricating grease and soap system lubricating grease (calcium complex soap grease, calcium soap grease, barium soap lubricating grease, magnesium soap lubricating grease or sodium soap grease).

Description

Lubricant composition and rolling bearing
Technical field
This disclosure relates to not only under high temperature and high speed, i.e., a kind of lubricant composition and rolling bearing are specifically related to Make to be connected in the lubricant composition that excellent noise properties are also able to achieve under high load capacity environment and the rolling suitable for miniature motor Bearing.
Background technique
As the rolling bearing used in the miniature motors such as fan motor, high-speed motor towards automobile, such as have outer Diameter 22mm so-called path ball bearing below.Since such path ball bearing requires the durability under hot environment, because This is used as lubricant in the past, uses heat resistance, the fluorine system lubricating grease of excellent in oxidation resistance or fluorine system lubricating grease and heat resistance always The mixed grease etc. of excellent urea system lubricating grease.
Such as in patent document 1, in order to realize high temperature durability and low temperature torque, a kind of rolling bearing is disclosed, In enclosed and contain fluororesin particle, specific aspartate as thickener in fluorine system base oil (perfluoro polyether oil) It is the lubricating grease of antirust agent and oiliness improver.
In addition, it is also proposed that have a kind of perfluoropolyether basis oil and specific carboxylic metallic salt as thickener of being combined with Lubricant composition to realize the improvement relative to the wear resistance of subject material, resistance to leakage, cleaning etc., and is also examined Cost (patent document 2) is considered.
Existing technical literature
Patent document
Patent document 1: No. 4239514 bulletins of Japanese Patent No.
Patent document 2: No. 4505954 bulletins of Japanese Patent No.
Summary of the invention
Although known above-mentioned fluorine system lubricating grease, particularly oily fluorine system lubricating grease heat resistance based on perfluoropolyether are excellent It is different, but under high loads or because under the excess load caused by accidentally assembling in use, based on oily fluorocarbon oil (perfluoropolyether) point Solution, resulting fluoric acid and cause to corrode in metal surfaces such as the transfer faces of bearing.In the face of transfer, the metal erosion of generation will An important factor for deterioration and malrotation as noise properties occur.
Therefore, urgent expectation is able to suppress rolling when use under high loads not only under high temperature and high speed environment The lubricating grease that the generation of malrotation in dynamic bearing and noise are got higher.
The disclosure is given this situation to carry out, and it is an object of the present invention to provide one kind can be under high temperature and high speed environment Make resistance to thermal noise with the lubricant composition for inhibiting noise to get higher under high load capacity and by the application of the lubricant composition Characteristic and load resistance noise properties become excellent rolling bearing.
Further investigation is repeated in present inventors etc. to achieve the goals above, as a result, it has been found that by by fluorine system The soaps system such as thickener, urea system thickener and calcium complex soap thickener this 3 kinds of thickeners of thickener are matched with base respectively with specific quantity Plinth oil, the then noise being able to suppress in high temperature and high speed test and high load capacity test are got higher, and can become heat resistance and load resistance Excellent lubricant composition, so as to complete the disclosure.
That is a form of the disclosure is related to a kind of lubricant composition, oily fluorine system base oil and non-based on containing Fluorine system base oil, the fluorine system thickener as thickener and urea system thickener and selected from calcium complex soap thickener, calcium soap thicken At least one of agent, barium soap thickener, magnesium soap thickener and soda soap thickener soap system thickener.
Wherein, as the ideal form of the disclosure, preferably above-mentioned urea system thickener contains aliphatic-aromatic race urea, alicyclic ring- At least one of aliphatic urea and aliphatic urea.
Also, it is preferred that above-mentioned urea system thickener includes the form for the double urea compound that the following general formula (1) indicates.
R1-NHCONH-R2-NHCONH-R3···(1)
(in formula, R1And R3Each independently represent the virtue of the aliphatic alkyl of monovalence, the alicyclic type hydrocarbon of monovalence or monovalence Fragrant race's alkyl, and R1And R3At least one of indicate monovalence aliphatic alkyl or monovalence alicyclic type hydrocarbon, R2Indicate divalent Aromatic hydrocarbyl.)
Additionally, it is preferred that the total amount (100 mass %) relative to lubricant composition, containing adding up to 70~90 mass %'s Fluorine system base oil and non-fluorine system base oil, the fluorine system thickener of 9~18 mass %, 0.5~7 mass % urea system thickener and The calcium complex soap thickener of 0.3~3 mass %.Further preferred above-mentioned calcium complex soap thickener is aliphatic dicarboxylic acid and single acyl The calcium compound soap of amine monocarboxylic acid.
Alternatively, containing the fluorine system base oil for adding up to 70~90 mass % preferably with respect to the total amount of lubricant composition With non-fluorine system base oil, the fluorine system thickener of 9~18 mass %, the urea system thickener of 0.5~7 mass % and 0.3~3 mass % Calcium soap thickener.
Alternatively, containing the fluorine system base oil for adding up to 70~90 mass % preferably with respect to the total amount of lubricant composition With non-fluorine system base oil, the fluorine system thickener of 9~18 mass %, the urea system thickener of 0.5~7 mass % and 0.6~3.6 matter Measure the barium soap thickener of %.
Alternatively, containing the fluorine system base oil for adding up to 70~90 mass % preferably with respect to the total amount of lubricant composition With non-fluorine system base oil, the fluorine system thickener of 9~18 mass %, the urea system thickener of 0.5~7 mass % and 0.6~3.6 matter Measure the magnesium soap thickener of %.
Alternatively, containing the fluorine system base oil for adding up to 70~90 mass % preferably with respect to the total amount of lubricant composition With non-fluorine system base oil, the fluorine system thickener of 9~18 mass %, the urea system thickener of 0.5~7 mass % and 0.6~3.6 matter Measure the soda soap thickener of %.
Additionally, it is preferred that above-mentioned non-fluorine system base oil is selected from hydrocarbon system synthetic oil, ether system synthetic oil, ester system synthetic oil and organic One or more of silicon systems synthetic oil.
The disclosure is in addition also to be sealed with the rolling bearing of foregoing grease composition as object.
According to the disclosure, it is capable of providing a kind of by that there will be the lubricant composition of above-mentioned composition to be applied to rolling bearing And it realizes under high temperature and good noise properties under high load capacity, heat resistance and the excellent rolling bearing of load resistance.
Detailed description of the invention
Fig. 1 is the schematic diagram being illustrated to the structure of the rolling bearing of the disclosure.
Fig. 2 is indicated in this 3 kinds mixed grease of fluorine system lubricating grease, urea system lubricating grease and calcium complex soap grease, The result that the heat-resistance test carried out using Andrew's instrument and load resistance when changing the content of calcium complex soap thickener are tested The figure of (Andrew's value of M frequency band).
Fig. 3 is indicated in this 3 kinds mixed grease of fluorine system lubricating grease, urea system lubricating grease and calcium soap grease, is changed The result of the heat-resistance test carried out using Andrew's instrument and load resistance test when the content of calcium soap thickener be (M frequency band Andrew's value) figure.
Fig. 4 is indicated in fluorine system lubricating grease, urea system lubricating grease and barium soap lubricating grease this 3 kinds mixed grease, is changed The result of the heat-resistance test carried out using Andrew's instrument and load resistance test when the content of barium soap thickener be (M frequency band Andrew's value) figure.
Fig. 5 is indicated in this 3 kinds mixed grease of fluorine system lubricating grease, urea system lubricating grease and magnesium soap lubricating grease, is changed The result of the heat-resistance test carried out using Andrew's instrument and load resistance test when the content of magnesium soap thickener be (M frequency band Andrew's value) figure.
Fig. 6 is indicated in this 3 kinds mixed grease of fluorine system lubricating grease, urea system lubricating grease and sodium soap grease, is changed The result of the heat-resistance test carried out using Andrew's instrument and load resistance test when the content of soda soap thickener be (M frequency band Andrew's value) figure.
Fig. 7 is indicated in this 3 kinds mixed grease of fluorine system lubricating grease, urea system lubricating grease and Lithium soap grease, is changed The result of the heat-resistance test carried out using Andrew's instrument and load resistance test when the content of lithium soap-thickened agent be (M frequency band Andrew's value) figure.
Specific embodiment
As described above, in fluorine system lubricating grease, there are the following problems: fluorocarbon oil (base oil) point in use under high loads Solution, generate fluoric acid, thus occur metal surface corrosion, especially will in fluorocarbon oil with linear chain structure perfluoropolyether as The problem is easy to produce in lubricating grease obtained by base oil.
In order to solve this problem, present inventor etc. is to keeping heat resistance and be also equipped with the lubricating grease group of load resistance The composition for closing object is studied, as a result, it has been found that in the fluorine system lubricating grease of excellent heat resistance and the mixed grease of urea system lubricating grease In cooperation further containing soap system lubricating grease of soaps system thickener such as calcium complex soap thickeners as thickener, can become high The countermeasure of the corrosion of sliding surface under load circumstance.
Then, firstly, present inventor etc. 3 kinds (fluorine system lubricating grease, urea system lubricating grease, as soap system lubricating grease Example calcium complex soap grease) mixed grease in, keep the use level of fluorine system lubricating grease constant and exclude fluorine system lubrication On the basis of the influence of rouge, various change is carried out to the use level of urea system lubricating grease and calcium complex soap grease, they are matched How the variation of resultant influences the heat resistance of mixed grease, load resistance compares research.It should be noted that the disclosure In, make after being rotated under high temperature and high speed environment or under high load capacity environment using the bearing of mixed grease, uses Andrew's instrument (AnderonMeter) noise properties are measured, using obtained Andrew's value as the index of heat resistance and load resistance.Therefore, As described later, in the disclosure, after load resistance test (load resistance evaluation) refers to and makes bearing rotary under high load capacity environment Noise valuation test, heat-resistance test (Evaluation of Heat Tolerance) refer to the noise valuation after making bearing rotary under high temperature environment try It tests.
It has thereby confirmed that if the content of calcium complex soap thickener is more than specific quantity, it can in load resistance test Realize the inhibition got higher with the noise that Andrew's value is evaluated, noise valuation becomes desired result with the increase of content.
On the other hand, in heat-resistance test, although the content of calcium complex soap thickener can be real when being specific quantity or less The inhibition that existing noise is got higher, but got higher once noise occurs more than specific quantity.
Based on these opinions, also implement same evaluation in the case where further changing the use level of fluorine system lubricating grease, Establish the use level that good noise properties are all obtained in load resistance test and heat-resistance test.
In addition, being employed as the calcium soap grease of soap system lubricating grease, barium soap lubricating grease, magnesium soap lubricating grease and sodium soap grease And implement same evaluation, it has also discovered in these soap system lubricating grease and is obtained in load resistance test and heat-resistance test The use level of good noise properties.
As an example, it is shown in FIG. 2 at 3 kinds (fluorine system lubricating grease, urea system lubricating grease, calcium complex soap grease) In mixed grease (lubricant composition), make the use level of fluorine system lubricating grease, urea system lubricating grease and calcium complex soap grease into Row various changes when using Andrew's instrument carry out heat-resistance test (precompressed 39N, 180 DEG C of test temperature, rotation speed 21000rpm, 200 hours) and load resistance test (precompressed 500N, test temperature: room temperature, rotation speed 3000rpm, 100 is small When) result (detailed content of detailed step and result is referring to aftermentioned embodiment).
Specifically, Fig. 2 is directed to makes the use level of fluorine system lubricating grease in 90~49 mass % in 3 kinds of mixed grease (content of the fluorine system thickener relative to 100 mass % of mixed grease total amount: 17.8~9.8 mass %) carries out various changes Change, making the use level of urea system lubricating grease in 0~48 mass %, (the urea system relative to 100 mass % of mixed grease total amount thickens The content of agent: 0~7.2 mass %) it carries out various change, keep the use level of calcium complex soap grease (opposite in 0~29 mass % In the use level of the calcium complex soap thickener of 100 mass % of mixed grease total amount: 0~4.3 mass %) carry out various change and Lubricating grease, respective Andrew's value after heat-resistance test and load resistance test is measured, it is opposite by this time It is shown in horizontal axis in the content (quality %) of the calcium complex soap thickener of 3 kinds of mixed grease total amount, by M frequency after the test Andrew's value of band is shown in the longitudinal axis.It should be noted that indicate Andrew's value in horizontally-parallel dotted line: 15 (due in this reality in figure Under the experimental condition for applying example, Andrew's value sees significant abrasion when being 15 or more, therefore will be evaluated as ideal less than 15).
As shown in Figure 2, it is thus identified that the content of calcium complex soap thickener is more than that specific quantity (is about 0.3 matter in the case of figure 2 Measure %, especially 0.5 mass %) when, in load resistance test (high load capacity test: ■ (black box)), it can be realized with peace The inhibition that the noise of De Lu value evaluation is got higher, with the increase of content, noise valuation result becomes ideal.
On the other hand, in heat-resistance test (high temperature and high speed test: ◇ (diamond shape)), although calcium complex soap thickener contains It can be realized the inhibition that noise is got higher when measuring as specific quantity (being in the case of figure 2 about 3 mass %) below, but one is more than specific Amount just occurs noise and gets higher.
As shown in these results of Fig. 2, can be confirmed fluorine system lubricating grease, urea system lubricating grease and calcium complex soap grease this In 3 kinds of mixed grease, make the calcium complex soap thickener relative to mixed grease total amount 0.3~3 mass % of content, Especially 0.5~3 mass % (use level of the calcium complex soap grease relative to mixed grease total amount be 2~20 mass %, Especially 4~20 mass %) when, good noise properties are all obtained in load resistance test and heat-resistance test.In Fig. 2 In, the Range Representation indicated with the arrow parallel with horizontal axis all obtains good make an uproar after load resistance test and heat-resistance test The content range of the calcium complex soap thickener of sound characteristic (Andrew value: less than 15).
Moreover, present inventors etc. are based on shown in Figure 2 as a result, matching to this 3 kinds of lubricating grease (3 kinds of thickeners) The upper and lower bound of composition and division in a proportion example is studied, so as to complete the invention of the disclosure.
The feature of the lubricant composition (hreinafter referred to as " lubricant composition ") of the enclosed rolling bearing of the disclosure exists In: it is that a group merging cooperates made of specific thickener described below.Hereinafter, being specifically described.
[rolling bearing]
Firstly, being described in detail referring to preferred embodiment of the attached drawing to the rolling bearing of the disclosure.It should be noted that this Invention disclosed is not limited to the following embodiments and the accompanying drawings.
Fig. 1 is the radial sectional view of the rolling bearing (ball bearing) 10 of the preferred embodiment of the disclosure.
Rolling bearing 10 has in the identical basic structure of rolling bearing of the prior art, has cricoid inner ring 11, outer Circle 12, multiple rotors 13, retainer 14 and annular seal member 15 (15a, 15b).
Inner ring 11 is the columnar structural body being coaxially disposed with the central axis of axis.
Outer ring 12 is to carry out the columnar structural body of arranged coaxial in the peripheral side of inner ring 11 and inner ring 11.
Multiple rotors 13, which are respectively, is configured at bearing space (the cricoid sky being formed between inner ring 11 and outer ring 12 Between) sphere (ball) of track in 16.That is, the rolling bearing 10 in present embodiment is ball bearing.
Lubricant composition G is enclosed in bearing space 16 as lubricant.Annular seal member 15 (15a, 15b) is for example It is formed by steel plate, bearing space 16 is isolated from the outside world by 11 lateral process of inward-facing circle of the inner circumferential from outer ring 12.It should be noted that The enclosed volume of lubricant composition G inside bearing space 16 is, for example, the 5~50% of its volume.In order to have both moment properties and Life performance, preferably 25~35% or so amount.
Circumferential direction of the inner peripheral surface along outer ring 12 in outer ring 12 is formed with the recess portion 12a that section is arc-shaped.In addition, in inner ring 11 outer peripheral surface is formed with the recess portion 11a that section is arc-shaped along the circumferential direction of inner ring 11.Recess portion 11a and recess portion 12a draws circumferentially Lead multiple rotors 13.
Retainer 14 keeps the multiple rotors 13 of configuration in orbit.Retainer 14 is coaxial with the progress of the central axis of axis The ring bodies of setting, has the following structure: the side on the direction of central axis has for keeping the multiple recessed of rotor 13 Portion, and rotor 13 is contained in each recess portion.It should be noted that the shape (crown, waveform etc.) of retainer 14, material (steel plate System or resin etc.) it is arbitrary, it is not limited to specific shape or material.
In having the rolling bearing 10 constituted above, lubricant composition G, which is played, reduces rotor 13 and retainer 14 Between and friction between rotor 13 and inner ring 11 or outer ring 12 effect.The composition according to shown in Fig. 1 is it is found that enclosed To rolling bearing 10 lubricant composition G invaded when rolling bearing 10 rotates rotor 13 and inner ring 11 or outer ring 12 it Between.
[lubricant composition]
Next, the lubricant composition enclosed in rolling bearing to the disclosure is illustrated.
< base oil >
In the lubricant composition of present embodiment enclosed in rolling bearing, based on oil, use fluorine system basis Oily and non-fluorine system base oil.
As fluorine system base oil, such as the fluorine system base oil with perfluoropolyether (PFPE) for principal component can be enumerated.It should say Bright, PFPE is general formula: RfO (CF2O)p(C2F4O)q(C3F6O)rThe chemical combination that Rf (Rf: perfluro lower alkyl, p, q, r: integer) is indicated Object.
It should be noted that perfluoropolyether is roughly divided into straight chain type and side chain type, and compared with side chain type, the dynamic viscosity of straight chain type Temperature dependency it is small.This means that viscosity is low compared with side chain type at low ambient temperatures for straight chain type, under high temperature environment with side Chain is big compared to viscosity.Especially assume that under high temperature environment in use, from inhibit lubricating grease from application site flow out and with From the viewpoint of exhaustion occurs together in this, preferably viscosity is higher in a high temperauture environment, that is, it is poly- that it is preferable to use the perfluors of straight chain type Ether.
It as non-fluorine system base oil, is not particularly limited, is used generally as grease base oil, it can independent or mixing Use the ethers system synthetic oils such as hydrocarbon system synthetic oil, alkyl ether oil or alkyl diphenyl base ether oil, ester system synthetic oil, organic silicon-type synthetic oil Deng.
As above-mentioned hydrocarbon system synthetic oil, such as normal paraffin hydrocarbons, isoparaffin, polybutene, polyisobutene, 1- decene can be enumerated The poly alpha olefins (PAO) such as oligomer, 1- decene ethylene low polymer.
As ester system synthetic oil, such as can to enumerate dibutyl sebacate, Diisooctyl Sebacate, decanedioic acid two pungent Ester, dioctyl adipate, diisodecyl adipate (DIDA), adipic acid two (tridecyl) ester, glutaric acid two (tridecyl) ester, acetyl The diester oils such as base methyl ricinolcic acid, trioctyl trimellitate (TOTM), tri trimellitate -2- ethylhexyl, tri trimellitate last of the ten Heavenly stems ester, Aromatic ester oils, trimethylolpropane caprylate, the three hydroxyl first such as four monooctyl ester of benzene tetracarboxylic acid, four -2- ethylhexyl of Pyromellitic Acid The polyalcohols ester oils such as base propane pelargonate, pentaerythrite -2 ethyl hexanoic acid ester, pentaerythrite pelargonate, carbonic acid ester oil etc..
As alkyl diphenyl base ether oil, monoalkyl diphenyl ether, dialkyl diphenyl ether, poly- alkyl diphenyl base ether can be enumerated Deng.
Wherein, optimization aromatic ester oil can be used alone or as a mixture.
The mixing ratio of above-mentioned fluorine system base oil and non-fluorine system base oil is not particularly limited, such as relative to base oil 100 mass % of total amount can be fluorine system base oil: the non-fluorine system base oil=95~5 mass % of mass %:5~95, for example, Fluorine system base oil: non-fluorine system base oil=95~40 mass of mass %:5~60 % etc..
In addition, the total amount relative to lubricant composition of the invention, fluorine system base oil and non-fluorine system base oil are carried out The ratio of total base oil entirety can be 70~90 mass %, such as can be 75~95 mass %, 75~85 mass %.
< thickener >
In lubricant composition of the invention, as thickener, adds fluorine system thickener and urea system thickener and be selected from At least one of calcium complex soap thickener, calcium soap thickener, barium soap thickener, magnesium soap thickener and soda soap thickener soap system increases Thick dose.
Wherein, preferably with respect to the total amount of lubricant composition, the fluorine system thickener containing 9~18 mass %, 0.5~7 The calcium complex soap thickener of the urea system thickener of quality % and 0.3~3 mass %.
Alternatively, preferably with respect to the total amount of lubricant composition, the fluorine system thickener containing 9~18 mass %, 0.5~7 The calcium soap thickener of the urea system thickener of quality % and 0.3~3 mass %.
Alternatively, preferably with respect to the total amount of lubricant composition, the fluorine system thickener containing 9~18 mass %, 0.5~7 The barium soap thickener of the urea system thickener of quality % and 0.6~3.6 mass %.
Alternatively, preferably with respect to the total amount of lubricant composition, the fluorine system thickener containing 9~18 mass %, 0.5~7 The magnesium soap thickener of the urea system thickener of quality % and 0.6~3.6 mass %.
Alternatively, preferably with respect to the total amount of lubricant composition, the fluorine system thickener containing 9~18 mass %, 0.5~7 The soda soap thickener of the urea system thickener of quality % and 0.6~3.6 mass %.
It should be noted that fluorine system thickener and urea system thickener and be selected from calcium complex soap thickener, calcium soap thickener, barium The total amount (thickener total amount) of at least one of soap thickener, magnesium soap thickener and soda soap thickener soap system thickener is excellent Apolegamy synthesis is 10~30 mass %, particularly 10~20 mass % relative to the total amount of lubricant composition.
< fluorine system thickener >
As fluorine system thickener, preferably fluororesin particle, such as it is preferable to use the particles of polytetrafluoroethylene (PTFE) (PTFE).PTFE For the polymer of tetrafluoroethene, with general formula: [C2F4]n(n: the degree of polymerization) is indicated.
In addition, as adoptable fluorine system thickener, such as perfluoroethylene-propylene copolymer (FEP), ethylene-can be enumerated TFE copolymer (ETFE), tetrafluoroethylene-perfluoroalkyl vinyl ether co-polymer (PFA).
The size of above-mentioned PTFE particle is not particularly limited, such as it is preferable to use poly- four that average grain diameter is 0.5~100 μm Vinyl fluoride.In addition, the shape of PTFE particle is not particularly limited, it can be spherical, polyhedral shape, needle-shaped etc..
Above-mentioned fluorine system thickener relative to the amount that the total amount of lubricant composition is 9~18 mass % preferably to use.
< urea system thickener >
Carbamide compound is since heat resistance, water resistance are all excellent, especially having good stability under high temperature, therefore preferably in height Application site under warm environment, uses as thickener.
As urea system thickener, the carbamide compounds such as double urea compound, three carbamide compounds, polyurea compound can be used.It is special It is not, it is preferable to use double urea compound from the aspect of heat resistance and noise properties (quietness).In addition, as urea chemical combination The type of object preferably comprises aliphatic-aromatic race urea, alicyclic ring-at least one of aliphatic urea and aliphatic urea.
As these urea system thickeners, known carbamide compound can be used.
Wherein, as urea system thickener of the invention is suitable for, the double urea compound of the following general formula (1) expression can be enumerated.
R1-NHCONH-R2-NHCONH-R3···(1)
In above-mentioned formula (1), R1And R3Each independently represent the aliphatic alkyl of monovalence, the alicyclic type hydrocarbon of monovalence or one The aromatic hydrocarbyl of valence, and R1And R3At least one of indicate monovalence aliphatic alkyl or monovalence alicyclic type hydrocarbon.
In addition, R2Indicate the aromatic hydrocarbyl of divalent.
As the aliphatic alkyl of above-mentioned monovalence, such as the straight-chain of carbon atom number 6~26 or satisfying for branched can be enumerated And/or unsaturated alkyl.
As the alicyclic type hydrocarbon of above-mentioned monovalence, such as the naphthenic base of carbon atom number 5~12 can be enumerated.
In addition, as above-mentioned aromatic hydrocarbyl, such as the monovalence of carbon atom number 6~20 or the aromatic hydrocarbon of divalent can be enumerated Base.
As the carbamide compound that urea system thickener uses, amine compounds can be used and isocyanate compound is closed At.
As amine compounds as used herein, in addition to hexylamine, octylame, dodecyl amine, cetylamine, octadecylamine, hard Rouge amine, oleyl amine etc. are the aliphatic amine of representative or other than ester ring type amine that cyclohexylamine etc. is representative, also can be used with aniline, right Toluidines, phenetidine etc. are the aromatic amine of representative.
In addition, can be used phenylene diisocyanate, toluene di-isocyanate(TDI), diphenyl two different as isocyanate compound The aromatic diisocyanates such as cyanate, methyl diphenylene diisocyanate, octadecane diisocyanate, decane diisocyanate Ester, hexamethylene diisocyanate aliphatic diisocyanate etc..
Wherein, it is preferable to use aliphatic-aromatic race double urea compound, can be used aliphatic amine and aromatic amine as amine original Material, is synthesized into using it with aromatic diisocyanate.
It should be noted that will be double as aromatic series obtained from amine raw material using aromatic series monoamine and aromatic diisocyanate Carbamide compound is as urea system thickener in use, being possible to generate extraordinary noise, it is therefore desirable to be used for being inquired into.
Above-mentioned urea system thickener relative to the amount that the total amount of lubricant composition is 0.5~7 mass % preferably to use.
The thickener > of < soap system
In the present invention, other than above-mentioned fluorine system thickener and urea system thickener, soap system thickener is also used.
As soap system thickener, in the present invention, calcium complex soap thickener, calcium soap thickener, barium soap thickener, magnesium soap are used Thickener, soda soap thickener.
< calcium complex soap thickener >
, it is preferable to use further improving the calcium compound soap of heat resistance in the present invention, higher fatty acids can be used for example With the calcium compound soap of lower fatty acid, the calcium compound soap being made of the calcium salt of binary acid and fatty acid etc..
Wherein, as the calcium complex soap thickener used in lubricant composition of the invention, it is preferable to use aliphatic The calcium compound soap of dicarboxylic acids and monoamides monocarboxylic acid.
As above-mentioned aliphatic dicarboxylic acid, it is 2~20 saturated or unsaturated dicarboxylic acids that carbon atom number, which can be used,.
As saturated dicarboxylic acid, for example, can enumerate oxalic acid, malonic acid, succinic acid, methylsuccinic acid, glutaric acid, adipic acid, Pimelic acid, suberic acid, azelaic acid, decanedioic acid, nine methylene dicarboxylic acids, decamethylene dicarboxylic acids, heneicosanedioic acid, dodecane two Acid, astrotone, tetracosandioic acid, pentacosandioic acid, hexadecandioic acid (hexadecane diacid), heptadecane diacid, octadecane diacid etc., preferably Use adipic acid, pimelic acid, suberic acid, azelaic acid, decanedioic acid, nine methylene dicarboxylic acids, decamethylene dicarboxylic acids, hendecane two Acid, dodecanedioic acid, tridecandioic acid, tetracosandioic acid, pentacosandioic acid, hexadecandioic acid (hexadecane diacid), heptadecane diacid, octadecane two Acid etc..
In addition, as unsaturated dicarboxylic, such as maleic acid, fumaric acid, 2- methene succinic acid, 2- ethylidene can be used Alkenyl succinic acids such as succinic acid, 2- methyleneglutaric acid etc..
These saturated or unsaturated dicarboxylic acids may be used singly or as a mixture of two or more.
As above-mentioned monoamides monocarboxylic acid, it can enumerate and the carboxyl of the side in above-mentioned aliphatic dicarboxylic acid is subjected to amidation Obtained by monoamides monocarboxylic acid.
At this point, as by the amine of carboxy amidation, such as butylamine, amylamine, hexylamine, heptyl amice, octylame, nonyl amine, the last of the ten Heavenly stems can be enumerated The Armeen of amine, lauryl amine, nutmeg amine, palmitamide, stearylamine, docosane amine etc., di-n-propylamine, diisopropylamine, two Butylamine, diamylamine, dilaurylamine (DLA), monomethyl lauryl amine, distearyl amine, monomethyl stearylamine, two nutmeg amine, two palmitamides etc. Secondary aliphatic amine, the aliphatic unsaturated amines such as allylamine, diallylamine, oleyl amine, two oleyl amines, cyclopropylamine, ring butylamine, cyclopentamine, The ester ring types amine such as cyclohexylamine, the aromatic amines such as aniline, methylaniline, ethyl aniline, benzylamine, dibenzylamine, diphenylamines, alpha-naphthylamine Deng.
Wherein, it is preferable to use hexylamine, heptyl amice, octylame, nonyl amine, decyl amine, lauryl amine, nutmeg amine, palmitamide, stearylamine, Docosane amine, dibutyl amine, diamylamine, monomethyl lauryl amine, monomethyl stearylamine, oleyl amine etc..
It is above-mentioned that calcium complex soap thickener can it is preferable to use commercially available products.
Alternatively, it is also possible to calcium complex soap thickener obtained by using in the following manner, that is, in non-fluorine system base oil plus Enter aliphatic dicarboxylic acid and monoamides monocarboxylic acid, be heated to belong to temperature capable of stirring and belong to the temperature effectively reacted and Belong to the temperature (for example, about 80~180 DEG C) for the deterioration that base oil does not occur and be stirred, wherein calcium hydroxide is added, is formed Calcium complex soap thickener obtained by calcium compound soap.
Above-mentioned calcium complex soap thickener relative to the amount that the total amount of lubricant composition is 0.3~3 mass % preferably to make With.
< calcium soap thickener, barium soap thickener, magnesium soap thickener, soda soap thickener >
As above-mentioned calcium soap thickener, barium soap thickener, magnesium soap thickener, soda soap thickener, aliphatic list can be used The metal salt of carboxylic acid, that is, calcium salt, barium salt, magnesium salts, the sodium salt of aliphatic monocarboxylic acid.
Above-mentioned aliphatic carboxylic acid can be straight-chain aliphatic carboxylic acid, branched aliphatic carboxylic acid, representative examples of saturated aliphatic carboxylic, insatiable hunger Any one of with aliphatic carboxylic acid, the fat of carbon atom number 2~30 or so, such as carbon atom number 12~24 generally can be used Acid.Specifically, butyric acid, caproic acid, octanoic acid, n-nonanoic acid, capric acid, lauric acid, myristic acid, palmitinic acid, stearic acid, behenyl can be enumerated The saturated fatty acids such as acid, the unsaturated fatty acids such as oleic acid, linoleic acid, linolenic acid, ricinoleic acid (ricinoleic acid).
Wherein, as above-mentioned calcium soap thickener, barium soap thickener, magnesium soap thickener, soda soap thickener, tristearin can be enumerated Acid, lauric acid, the calcium salt of ricinoleic acid, barium salt, magnesium salts, sodium salt are as representative examples.
Above-mentioned calcium soap thickener, barium soap thickener, magnesium soap thickener, soda soap thickener can it is preferable to use commercially available products.
Above-mentioned calcium soap thickener relative to the amount that the total amount of lubricant composition is 0.3~3 mass % preferably to use.
In addition, above-mentioned barium soap thickener, magnesium soap thickener, soda soap thickener are preferably with respect to the total of lubricant composition Amount, uses barium soap thickener with 0.6~3.6 mass %, magnesium soap thickener is used with 0.6~3.6 mass %, with 0.6~3.6 matter It measures % and uses soda soap thickener.
The other additive > of <
In addition, other than above-mentioned essential component, also can according to need in lubricant composition and do not damaging this hair The range of obvious results fruit contains usually used additive in lubricant composition.
As the example of such additive, it is (wear-resisting that antioxidant, extreme pressure agent, matal deactivator, antiwear agents can be enumerated Damage agent), antirust agent, oiliness enhancer, viscosity index improving agent, tackifier etc..
When comprising these other additives, additive amount (total amount) is usually relative to the total amount of lubricant composition 0.1~10 mass %.
As above-mentioned antioxidant, such as octadecyl -3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid can be enumerated Ester, pentaerythrite four [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic ester], 2,4- be bis--just pungent sulfenyl -6- (hydroxyl -3 4-, 5- di-tert-butyl amido) -1,3,5- triazine, 1,3,5- trimethyl -2,4,6- three (3,5- di-tert-butyl-4-hydroxyl benzyl) Benzene, triethylene glycol-bis- [3- (3- tert-butyl -5- methyl -4- hydroxy phenyl) propionic esters], the bis- [3- (3,5- bis- of 1,6-HD - Tert-butyl-hydroxy phenyl) propionic ester], 2,2- it is thio-di ethylene bis [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid Ester], N, the hindered phenolics antioxidant such as N '-hexamethylene bis (3,5- di-t-butyl -4- hydroxyhydrocinnamamide), 2,6- bis- Tert-butyl-4-methyl-Phenol and 4, the phenolic antioxidants such as 4- di-2-ethylhexylphosphine oxide (2,6- DI-tert-butylphenol compounds), triphenylamine, benzene Amine antioxidants such as base-alpha-naphthylamine, alkylation phenyl-α-naphthylamine, phenthazine, alkylated phenthazine etc..
In addition, as extreme pressure agent, such as the phosphorus series compounds such as phosphate, phosphite ester, phosphate amine salt can be enumerated, vulcanize The chalcogenide compounds such as species, disulfides, the chlorine based compound such as chlorinated paraffin, chlorinated biphenyl, zinc dialkyl dithiophosphate, The metal salt etc. of the chalcogenide compounds such as molybdenum dialkyldithiocarbamacompositions.
As matal deactivator, benzotriazole, sodium nitrite etc. can be enumerated.
In addition, wear-resistant dose can enumerate tricresyl phosphate, macromolecule ester.
As above-mentioned macromolecule ester, such as the ester of 1 yuan of carboxylic acid and 2 yuan of carboxylic acids and polyalcohol of aliphatic can be enumerated.As upper The concrete example of macromolecule ester is stated, such as PRIOLUBE (registered trademark) series that Croda Japan company can be enumerated etc., but unlimited Due to this.
Lubricant composition of the invention can be by as defined in becoming above-mentioned various base oils and various thickeners The mode of ratio mixes, and cooperates other additives as needed and obtain.
Alternatively, it is also possible to will be made of fluorine system base oil and fluorine system thickener fluorine system lubricating grease, by non-fluorine system base oil With the urea system lubricating grease of urea system thickener composition and by non-fluorine system base oil and soap system thickener (calcium complex soap thickener, calcium Soap thickener, barium soap thickener, magnesium soap thickener or soda soap thickener) constitute soap system lubricating grease (calcium complex soap grease, calcium Soap lubricating grease, barium soap lubricating grease, magnesium soap lubricating grease or sodium soap grease) this 3 kinds of basic lubricating greases other add with as needed Agent cooperation is added to obtain, it can also be by a kind or 2 kinds in above-mentioned basic lubricating grease and remaining base oil and thickener and root It is manufactured according to other additives cooperation of needs.
In general, the content of the thickener relative to basic lubricating grease is 10~30 mass % or so, such as in above-mentioned 3 kinds of bases In plinth lubricating grease, the content of each thickener relative to each basic lubricating grease can be respectively fluorine system thickener: 15~30 matter Measure %, urea system thickener: 10~20 mass % and soap system thickener (calcium complex soap thickener, calcium soap thickener, the thickening of barium soap Agent, magnesium soap thickener, soda soap thickener): 10~20 mass %.
Miniature motor (example of the rolling bearing of present embodiment particularly preferable as automobile, household electrical appliance, information equipment etc. Such as, brushless motor, fan motor) rolling bearing use.
The invention of the disclosure is not limited to the embodiment recorded in this specification or specific embodiment, can be special It makes various changes, deform in the range of technical idea documented by sharp claims.
For example, in the above-described embodiment, as rolling bearing, ball bearing has been enumerated, but the present invention is not limited to This, can be used for other rolling bearings, such as roller bearing.
Embodiment
Hereinafter, the invention of the disclosure is described in detail using embodiment.But the present invention is not limited to This.
(evaluation of lubricant composition)
It is prepared according to use level shown in following each tables in 1~comparative example of 1~embodiment of embodiment 66 and comparative example Lubricant composition used in 51.
It should be noted that be used to prepare each ingredient of lubricating grease details and its referred to as it is as follows.
(a) base oil
(a1) fluorine system base oil: linear perfluoropolyether (PFPE)
(a2) non-fluorine system base oil: the miscella of synthetic oil 1 poly & Alpha ,-olefin oil and ester oil
(a3) non-fluorine system base oil: 2 poly & Alpha ,-olefin oil of synthetic oil
(b) thickener
(b1) fluorine system thickener: PTFE (polytetrafluoroethylene (PTFE), 10~25 μm of partial size)
(b2-1) urea system thickener: the carbamide compound comprising aliphatic-aromatic race urea
(b2-2) urea system thickener: include alicyclic ring-aliphatic urea carbamide compound
(b2-3) urea system thickener: the carbamide compound comprising aliphatic urea
(b3-1) Ca complex soap thickener: the calcium compound soap of aliphatic dicarboxylic acid and monoamides monocarboxylic acid
(b3-2) Ca soap thickener: 12OHCa soap (12- hydroxy stearic acid calcium)
(b3-3) Ba soap thickener: 12OHBa soap (12- hydroxy stearic acid barium)
(b3-4) Mg soap thickener: 12OHMg soap (12- hydroxy stearic acid magnesium)
(b3-5) Na soap thickener: 12OHNa soap (12- hydroxyl sodium stearate)
(b3-6) Li soap thickener: 12OHLi soap (12- hydroxy lithium stearate)
It should be noted that general, urea system thickener (b2-1~b2-3) is with relative to including the urea system thickener and non-fluorine system Base oil: the basic lubricating grease total amount of synthetic oil 1 (a2) is that 10~20 mass % are added, in addition, Ca complex soap thickener (b3-1), Ca soap thickener (b3-2), Ba soap thickener (b3-3), Mg soap thickener (b3-4), Na soap thickener (b3-5) or Li soap thickener (b3-6) with relative to include the Ca complex soap thickener, Ca soap thickener, Ba soap thickener, Mg soap thickening Agent, Na soap thickener or the Li soap thickener and non-fluorine system base oil: the basic lubricating grease total amount of synthetic oil 2 (a3) is 10~20 Quality % is added.
(c) other additive antioxidants: amine antioxidant extreme pressure agent: phosphorus system EP agent
It should be noted that other additives are with each lubricant composition (gross mass) relative to embodiment and comparative example, on State antioxidant, extreme pressure agent adds up to the mode of 3 mass % and is added.
Characteristic for obtained lubricant composition carries out heat-resistance test using following steps and load resistance is tested Afterwards, noise properties are evaluated.
1. heat-resistance test of < test method >
Lubricant composition will be tested and be sealing into the ball bearing with protection steel cage with the 25%~35% of bearing volume In (internal diameter 8mm, outer diameter 22mm, width 7mm).The ball bearing is installed in shell, the pre- of 39N is applied from axial to outer ring After pressure, it is inserted into axis to bearing bore diameter, by axis with test in conjunction with the rotary shaft of motor, so that ball bearing carries out inner ring rotation.
Next, above-mentioned shell is heated to 180 DEG C, its rotation is made with 180 DEG C of test temperature, rotation speed 21000rpm After 200 hours, noise valuation test is carried out as steps described below.To the test lubricating grease of each embodiment and comparative example respectively respectively into Row 3 times tests, find out average value.
2. load resistance is tested
Lubricant composition will be tested and be sealing into the ball bearing with protection steel cage with the 25%~35% of bearing volume In (internal diameter 8mm, outer diameter 22mm, width 7mm).The ball bearing is installed in shell, 500N's is applied from axial to outer ring After precompressed, it is inserted into axis to bearing bore diameter, by axis with test in conjunction with the rotary shaft of motor, so that ball bearing carries out inner ring rotation Turn.
Next, at room temperature, after rotating it 100 hours with rotation speed 3000rpm, making an uproar as steps described below Sound evaluation test.It is each to the test lubricating grease difference of each embodiment and comparative example to carry out 3 tests, find out average value.
< noise valuation >
M frequency band is measured by using noise properties of Andrew's instrument to the ball bearing for using each test lubricant composition Andrew's value of (300~1800Hz) and evaluate.
Specifically, after making each ball bearing rotation stipulated time according to above-mentioned steps, in precompressed, temperature condition and revolving speed In the case where remaining unchanged, contact velocity profile pick-up with the periphery of the outer ring of ball bearing in radial direction, detection is transmitted to outer The mechanical oscillation of circle and calculate Andrew's value, noise properties (the peace moral in measurement in each test is evaluated according to following benchmark The maximum value of Shandong value: 50).It should be noted that the frequency of M frequency band: 300~1800Hz is harsh noise for people.
< evaluation criteria >
Since under the experimental condition of the present embodiment, Andrew's value sees significant abrasion when being 15 or more, therefore will be small It is evaluated as in 15 ideal.
A: average Andrew's value is less than 15
N: average Andrew's value is 15 or more
Show the result in 1~table of table 9 and Fig. 2~Fig. 7.It should be noted that the use level in table: quality % is relative to group Close the value of the gross mass of object.
Table 9
As previously mentioned, Fig. 2 be the fluorine system thickener of the total amount relative to lubricant composition content be 17.8~9.8 Quality % (use level of the fluorine system lubricating grease relative to lubricant composition total amount: 90~49 mass %), the urea system thickener Content be 0~7.2 mass % (use level of the urea system lubricating grease: 0~48 mass %), the content of the calcium complex soap thickener For 0~4.3 mass % (use level of the calcium complex soap grease: 0~29 mass %) lubricant composition (embodiment 1~ Embodiment 15,11~comparative example of comparative example 13, comparative example 15, comparative example 17 and comparative example 18) in heat-resistance test and resistance to negative The result of Andrew's value of respective M frequency band after the test of lotus property.The horizontal axis of coordinate diagram shown in Figure 2 is relative to lubricating grease The content (quality %) of the calcium complex soap thickener of total composition, the longitudinal axis are Andrew's value of M frequency band after the test.It answers Give explanation, in Fig. 2, the parallel dotted line with horizontal axis indicates Andrew's value: 15, the range table indicated with the arrow parallel with horizontal axis Show the calcium complex soap thickener content range that good noise properties are all obtained after load resistance test and heat-resistance test.
As shown in Fig. 2, can be confirmed the total amount calcium complex soap thickener relative to lubricant composition content be 0.3~ When 3 mass %, in load resistance test (in figure, high load capacity is tested: ■ (black box), same as below) and heat-resistance test Good noise properties are all obtained in (in figure, high temperature and high speed is tested: ◇ (diamond shape), same as below).After load resistance test Noise properties become smaller than 0.3 mass % and Andrew's value is sharply got higher with the content of calcium complex soap thickener, on the other hand, Greater than 0.3 mass % then Andrew's value less than 15 when be stable at good state.In addition, noise properties after heat-resistance test with The content of calcium complex soap thickener become greater than 3 mass % and Andrew's value is sharply got higher, on the other hand, less than 3 mass % Then Andrew's value less than 15 when be stable at good state.Therefore, compound with the calcium of fluorine system thickener and urea system thickener The content of soap thickener all obtains good in the range of 0.3~3 mass % in load resistance test and heat-resistance test Noise properties.
Equally, it is 0~4.3 mass % (phase that Fig. 3, which is the content of the calcium soap thickener of the total amount relative to lubricant composition, For the use level of the calcium soap grease of the total amount of lubricant composition: 0~29 mass %) lubricant composition (embodiment 16~embodiment 30,11~comparative example of comparative example 13, comparative example 20, comparative example 22 and comparative example 23) in heat-resistance test and The result of Andrew's value of respective M frequency band after load resistance test.The horizontal axis of coordinate diagram shown in Fig. 3 is relative to profit The content (quality %) of the calcium soap thickener of grease composition total amount, the longitudinal axis are Andrew's value of M frequency band after the test.It answers Give explanation, in Fig. 3, the dotted line parallel with horizontal axis indicates Andrew's value: 15, the Range Representation indicated with the arrow parallel with horizontal axis The calcium soap amount of thickener range of good noise properties is all obtained after load resistance test and heat-resistance test.
Fig. 4 be the barium soap thickener of the total amount relative to lubricant composition content be 0~5.4 mass % (relative to The use level of the barium soap lubricating grease of the total amount of lubricant composition: 0~36 mass %) lubricant composition (embodiment 31~ Embodiment 42,11~comparative example of comparative example 13, comparative example 24 and 26~comparative example of comparative example 30) in heat-resistance test and resistance to negative The result of Andrew's value of respective M frequency band after the test of lotus property.The horizontal axis of coordinate diagram shown in Fig. 4 is relative to lubricating grease The content (quality %) of the barium soap thickener of total composition, the longitudinal axis are Andrew's value of M frequency band after the test.It should say Bright, in Fig. 4, the dotted line parallel with horizontal axis indicates Andrew's value: 15, the Range Representation indicated with the arrow parallel with horizontal axis is resistance to negative The barium soap amount of thickener range of good noise properties is all obtained after the test of lotus property and heat-resistance test.
Fig. 5 be the magnesium soap thickener of the total amount relative to lubricant composition content be 0~5.4 mass % (relative to The use level of the magnesium soap lubricating grease of the total amount of lubricant composition: 0~36 mass %) lubricant composition (embodiment 43~ Embodiment 54,11~comparative example of comparative example 13, comparative example 31 and 33~comparative example of comparative example 37) in heat-resistance test and resistance to negative The result of Andrew's value of respective M frequency band after the test of lotus property.The horizontal axis of coordinate diagram shown in fig. 5 is relative to lubricating grease group The content (quality %) of the magnesium soap thickener of object total amount is closed, the longitudinal axis is Andrew's value of M frequency band after the test.It should say Bright, in Fig. 5, the dotted line parallel with horizontal axis indicates Andrew's value: 15, the Range Representation indicated with the arrow parallel with horizontal axis is resistance to The magnesium soap amount of thickener range of good noise properties is all obtained after load test and heat-resistance test.
Fig. 6 be the soda soap thickener of the total amount relative to lubricant composition content be 0~5.4 mass % (relative to The use level of the sodium soap grease of the total amount of lubricant composition: 0~36 mass %) lubricant composition (embodiment 55~ Embodiment 66,11~comparative example of comparative example 13, comparative example 38 and 40~comparative example of comparative example 44) in heat-resistance test and resistance to negative The result of Andrew's value of respective M frequency band after the test of lotus property.The horizontal axis of coordinate diagram shown in Fig. 6 is relative to lubricating grease The content (quality %) of the soda soap thickener of total composition, the longitudinal axis are Andrew's value of M frequency band after the test.It should say Bright, in Fig. 6, the dotted line parallel with horizontal axis indicates Andrew's value: 15, the Range Representation indicated with the arrow parallel with horizontal axis is resistance to The content range of the soda soap thickener of good noise properties is all obtained after load test and heat-resistance test.
Shown in Fig. 3~Fig. 6, it is thus identified that relative to the total amount of lubricant composition, the content of calcium soap thickener is 0.3~3 Quality %, barium soap thickener content be 0.6~3.6 mass %, the content of magnesium soap thickener be 0.6~3.6 mass % and When the content of soda soap thickener is 0.6~3.6 mass %, good make an uproar all is obtained in load resistance test and heat-resistance test Sound characteristic.Their noise properties are shown and the noise of the lubricant composition using calcium complex soap thickener in Fig. 2 spy The same trend of property.
On the other hand, be shown in FIG. 7 the lithium soap-thickened agent of the total amount relative to lubricant composition content be 0~ The lubricating grease group of 4.3 mass % (use level of the Lithium soap grease of the total amount relative to lubricant composition: 0~29 mass %) It closes each after heat-resistance test and load resistance in object (11~comparative example of comparative example 13,45~comparative example of comparative example 51) are tested From M frequency band Andrew's value result.The horizontal axis of coordinate diagram shown in Fig. 7 is the lithium relative to lubricant composition total amount The content (quality %) of soap thickener, the longitudinal axis are Andrew's value of M frequency band after the test.It should be noted that in Fig. 7, with cross The parallel dotted line of axis indicates Andrew's value: 15.
Shown in Fig. 7, it is thus identified that because and use lithium soap-thickened agent as thickener, the noise properties for testing load resistance deteriorate, And the increase of the content with lithium soap-thickened agent, the noise properties of heat-resistance test also deteriorate.After load resistance test Noise properties, the content regardless of lithium soap-thickened agent, Andrew's value is all kept above 15.In addition, for heat-resistance test Noise properties afterwards, as long as the content of lithium soap-thickened agent, less than 0.6 mass %, Andrew's value is less than 15, if it is greater than 0.6 matter % is measured, then Andrew's value is higher than 15.Lithium soap-thickened agent and fluorine system thickener and urea system thickener are used in combination thus, it is possible to confirm When, it all cannot get good noise properties in load resistance test and heat-resistance test.
As shown in table 1, the result of test is by fluorine system thickener, urea system thickener and calcium complex soap thickener with specific ratio Lubricant composition obtained by example cooperation, that is, relative to lubricant composition total amount with the content of fluorine system thickener for 9~18 matter Amount %, urea system thickener are 0.5~7 mass %, calcium complex soap thickener is lubricating grease group obtained by 0.3~3 mass % cooperation Close object, heat-resistance test (with 180 DEG C, 21000rpm, precompressed 39N rotate 200 hours) and load resistance test (with room temperature, 3000rpm, precompressed 500N rotate 100 hours) in it is all good lower than 15, noise properties for average Andrew's value.
In addition, it is same, as shown in table 2, relative to lubricant composition total amount with the content of fluorine system thickener for 9~18 matter Amount %, urea system thickener are 0.5~7 mass %, calcium soap thickener is lubricant composition obtained by 0.3~3 mass % cooperation； As shown in table 3, be 9~18 mass % with the content of fluorine system thickener relative to lubricant composition total amount, urea system thickener is 0.5~7 mass %, barium soap thickener are lubricant composition obtained by 0.6~3.6 mass % cooperation；As shown in table 4, relatively In lubricant composition total amount with the content of fluorine system thickener be 9~18 mass %, urea system thickener is 0.5~7 mass %, magnesium Soap thickener is lubricant composition obtained by 0.6~3.6 mass % cooperation；And as shown in table 5, relative to lubricating grease group Close that object total amount with the content of fluorine system thickener is 9~18 mass %, urea system thickener is 0.5~7 mass %, soda soap thickener is Lubricant composition obtained by 0.6~3.6 mass % cooperation is average in above-mentioned heat-resistance test and load resistance test Andrew's value is good lower than 15, noise properties.
On the other hand, as shown in table 6, (1~comparative example of comparative example 10), only fluorine system thickening when only cooperating a kind of thickener When agent (comparative example 1), relevant to load resistance noise properties deteriorate, only urea system thickener (2~comparative example of comparative example 4) or Only soap system thickener (5~comparative example of comparative example 10) when, relevant to heat resistance noise properties deteriorate.
In addition, being only combined with (comparative example 11~ratio when fluorine system thickener and urea system thickener and unmated soap system thickener Compared with example 13), although having obtained heat resistance, noise properties relevant to load resistance deteriorate.
In addition, when mismatch urea system thickener and only cooperate fluorine system thickener and calcium complex soap thickener (comparative example 14~ Comparative example 16), mismatch urea system thickener and only cooperate fluorine system thickener and calcium soap thickener (19~comparative example of comparative example 21), It mismatches urea system thickener and only cooperates fluorine system thickener and barium soap thickener (comparative example 24 and comparative example 25), mismatches urea system Thickener and only cooperate fluorine system thickener and magnesium soap thickener (comparative example 31 and comparative example 32) and mismatch urea system thickener And when only cooperating fluorine system thickener and soda soap thickener (comparative example 38 and comparative example 29), although having obtained load resistance, with The relevant noise properties of heat resistance deteriorate (referring to table 7 and table 8).
In addition, even if the case where being combined with fluorine system thickener, urea system thickener and this 3 kinds of thickeners of soap system thickener Under, (comparative example 17 when (excessive) outside the range of the specified amount specified in the use level present invention for making calcium complex soap thickener With comparative example 18), (comparative example 22 and comparative example 23) when keeping the use level of calcium soap thickener excessive, the cooperation for making barium soap thickener (comparative example 29 and comparative example 30) when measuring excessive, (comparative example 36 and comparative example when also making the use level of magnesium soap thickener excessive 37) when and keeping the use level of soda soap thickener excessive (comparative example 43 and comparative example 44), although being to have obtained load resistance Property, but noise properties relevant to heat resistance deteriorate.On the other hand, even if in the case where being combined with 3 kinds of thickeners, make barium (26~comparative example of comparative example 28) when the use level of soap thickener is range outer (very few) of specified amount specified in the present invention, make When the use level of magnesium soap thickener is very few (33~comparative example of comparative example 35) and when keeping the use level of soda soap thickener very few (40~comparative example of comparative example 42), although being to have obtained heat resistance, noise properties relevant to load resistance deteriorate (reference Table 7 and table 8).
It should be noted that as soap system thickener and with (45~comparative example of comparative example comparative example 51) when lithium soap-thickened agent, It is related to heat resistance when the use level of lithium soap-thickened agent is more than 1.3 mass % for noise properties relevant to load resistance deterioration Noise properties also deteriorate (referring to table 9, Fig. 7).
In summary, it is thus identified that added with fluorine system thickener, urea system thickener and be selected from calcium complex soap thickener, calcium The lubricating grease of the invention of one of soap thickener, barium soap thickener, magnesium soap thickener and soda soap thickener soap system thickener Composition, even if (such as 500N) use is also able to suppress under (such as 180 DEG C or more) and high load capacity environment under high temperature environment Noise is got higher, and heat resistance (high temperature and high speed characteristic) and load resistance (high load characteristics) are good.
It should be noted that in the present embodiment, as an example, using the path ball bearing of the standard of outer diameter 22mm come into The evaluations of noise properties is gone, but the rolling bearing as object of the disclosure is not limited to the size, the rolling of the disclosure The size of bearing can be arbitrarily selected, and the type of rolling bearing can also be selected arbitrarily.
More than, optimal embodiment is described in detail, but the invention of the disclosure is not limited to above-mentioned embodiment party Formula, deformation, improvement in the range of can be realized the goal of the invention of the disclosure etc. are contained in the present invention.
The application is based on Japanese patent application (Japanese Patent Application 2016-233443) and 2017 filed on November 30th, 2016 Japanese patent application (Japanese Patent Application 2017-220393) filed on November 15, in, and its content is introduced in the form of reference In this.
Symbol description
G ... lubricant composition, 10 ... rolling bearings, 11 ... inner rings, 11a ... recess portion, 12 ... outer rings, 12a ... recess portion, 13 ... rotors, 14 ... retainers, 15 (15a, 15b) ... annular seal member, 16 ... bearing spaces.
Claims (according to the 19th article of modification of treaty)
1. a kind of lubricant composition,
Containing oil based on fluorine system base oil and non-fluorine system base oil, also,
Containing fluorine system thickener and urea system thickener and it is selected from calcium complex soap thickener, calcium soap thickener, barium soap thickener, magnesium At least one of soap thickener and soda soap thickener soap system's thickener as thickener,
Relative to the total amount of lubricant composition, contain the fluorine system base oil for adding up to 70~90 mass % and non-fluorine system basis The urea system thickener of oil, the fluorine system thickener of 9~18 mass %, 0.5~7 mass %.
2. lubricant composition according to claim 1, wherein urea system thickener includes aliphatic-aromatic race urea, rouge Ring-at least one of aliphatic urea and aliphatic urea.
3. lubricant composition according to claim 2, wherein urea system thickener is indicated comprising the following general formula (1) Double urea compound,
R1-NHCONH-R2-NHCONH-R3···(1)
In formula, R1And R3Each independently represent the aromatic hydrocarbon of the aliphatic alkyl of monovalence, the alicyclic type hydrocarbon of monovalence or monovalence Base, and R1And R3At least one of indicate monovalence aliphatic alkyl or monovalence alicyclic type hydrocarbon,
R2Indicate the aromatic hydrocarbyl of divalent.
4. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the calcium complex soap thickener containing 0.3~3 mass %.
5. lubricant composition according to claim 4, wherein the calcium complex soap thickener be aliphatic dicarboxylic acid and The calcium compound soap of monoamides monocarboxylic acid.
6. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the calcium soap thickener containing 0.3~3 mass %.
7. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the barium soap thickener containing 0.6~3.6 mass %.
8. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the magnesium soap thickener containing 0.6~3.6 mass %.
9. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the soda soap thickener containing 0.6~3.6 mass %.
10. lubricant composition described according to claim 1~any one of 9, wherein the non-fluorine system base oil be selected from One or more of hydrocarbon system synthetic oil, ether system synthetic oil, ester system synthetic oil and organic silicon-type synthetic oil.
11. a kind of rolling bearing is sealed with lubricant composition according to any one of claims 1 to 10.

Claims (11)

1. a kind of lubricant composition,
Containing oil based on fluorine system base oil and non-fluorine system base oil, also,
Containing fluorine system thickener and urea system thickener and it is selected from calcium complex soap thickener, calcium soap thickener, barium soap thickener, magnesium At least one of soap thickener and soda soap thickener soap system thickener are as thickener.
2. lubricant composition according to claim 1, wherein urea system thickener includes aliphatic-aromatic race urea, rouge Ring-at least one of aliphatic urea and aliphatic urea.
3. lubricant composition according to claim 2, wherein urea system thickener is indicated comprising the following general formula (1) Double urea compound,
R1-NHCONH-R2-NHCONH-R3···(1)
In formula, R1And R3Each independently represent the aromatic hydrocarbon of the aliphatic alkyl of monovalence, the alicyclic type hydrocarbon of monovalence or monovalence Base, and R1And R3At least one of indicate monovalence aliphatic alkyl or monovalence alicyclic type hydrocarbon,
R2Indicate the aromatic hydrocarbyl of divalent.
4. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the fluorine system thickener containing the fluorine system base oil and non-fluorine system base oil, 9~18 mass % that add up to 70~90 mass %, The calcium complex soap thickener of the urea system thickener of 0.5~7 mass %, 0.3~3 mass %.
5. lubricant composition according to claim 4, wherein the calcium complex soap thickener be aliphatic dicarboxylic acid and The calcium compound soap of monoamides monocarboxylic acid.
6. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the fluorine system thickener containing the fluorine system base oil and non-fluorine system base oil, 9~18 mass % that add up to 70~90 mass %, The calcium soap thickener of the urea system thickener of 0.5~7 mass %, 0.3~3 mass %.
7. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the fluorine system thickener containing the fluorine system base oil and non-fluorine system base oil, 9~18 mass % that add up to 70~90 mass %, The barium soap thickener of the urea system thickener of 0.5~7 mass %, 0.6~3.6 mass %.
8. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the fluorine system thickener containing the fluorine system base oil and non-fluorine system base oil, 9~18 mass % that add up to 70~90 mass %, The magnesium soap thickener of the urea system thickener of 0.5~7 mass %, 0.6~3.6 mass %.
9. lubricant composition described in any one of claim 1 to 3, wherein relative to the total of lubricant composition Amount, the fluorine system thickener containing the fluorine system base oil and non-fluorine system base oil, 9~18 mass % that add up to 70~90 mass %, The soda soap thickener of the urea system thickener of 0.5~7 mass %, 0.6~3.6 mass %.
10. lubricant composition described according to claim 1~any one of 9, wherein the non-fluorine system base oil be selected from One or more of hydrocarbon system synthetic oil, ether system synthetic oil, ester system synthetic oil and organic silicon-type synthetic oil.
11. a kind of rolling bearing is sealed with lubricant composition according to any one of claims 1 to 10.
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