CN101636477A - 润滑脂组合物以及轴承 - Google Patents

润滑脂组合物以及轴承 Download PDF

Info

Publication number
CN101636477A
CN101636477A CN200780052363A CN200780052363A CN101636477A CN 101636477 A CN101636477 A CN 101636477A CN 200780052363 A CN200780052363 A CN 200780052363A CN 200780052363 A CN200780052363 A CN 200780052363A CN 101636477 A CN101636477 A CN 101636477A
Authority
CN
China
Prior art keywords
oil
ester
grease composition
bearing
cyclohexyl
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.)
Pending
Application number
CN200780052363A
Other languages
English (en)
Inventor
远藤敏明
大贯裕次
今井裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyodo Yushi Co Ltd
Original Assignee
Kyodo Yushi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyodo Yushi Co Ltd filed Critical Kyodo Yushi Co Ltd
Publication of CN101636477A publication Critical patent/CN101636477A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00Lubricating 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
    • C10M169/02Mixtures of base-materials and thickeners
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32Esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M115/00Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
    • C10M115/08Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/66Special parts or details in view of lubrication
    • F16C33/6603Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6633Grease properties or compositions, e.g. rheological properties
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/0406Ethers; Acetals; Ortho-esters; Ortho-carbonates used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125Carboxylix 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
    • C10M2207/128Carboxylix 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
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/2805Esters used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/283Esters of polyhydroxy compounds
    • C10M2207/2835Esters of polyhydroxy compounds used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/30Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
    • C10M2207/301Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064Di- and triaryl amines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/10Amides of carbonic or haloformic acids
    • C10M2215/102Ureas; Semicarbazides; Allophanates
    • C10M2215/1026Ureas; Semicarbazides; Allophanates used as thickening material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02Pour-point; Viscosity index
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08Resistance to extreme temperature
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/02Bearings
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10Semi-solids; greasy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本发明提供一种改善了润滑脂对于润滑部位的流入性,并且即使高温环境下轴承寿命也长的轴承用润滑脂。该润滑脂组合物,其特征在于,含有基油和增稠剂,其中基油包含酯系合成油,酯系合成油的含量为基油全体的20质量%以上,并且增稠剂包含下述通式(I)所表示的二脲化合物:(I)R1-NHCONH-R2-NHCONH-R3,式中,R2表示碳数为6~15的2价芳香族烃基,R1和R3为相同或不同的基团,它们表示环己基、或碳数为8~22的直链或支化烷基,并且环己基的摩尔数相对于环己基和碳数为8~22的直链或支化烷基的总摩尔数的比例为60~95%。

Description

润滑脂组合物以及轴承
技术领域
本发明涉及润滑脂组合物以及轴承,特别是涉及适合用于汽车电气装置·辅助机器用滚动轴承的润滑脂组合物,以及装入了该润滑脂组合物的汽车电气装置·辅助机器用滚动轴承。
背景技术
润滑汽车电气装置·辅助机器用滚动轴承等的高温·高速化显著的部位的润滑脂,要求有长润滑寿命。为了对润滑脂赋予长润滑寿命,耐热性是必然要求的,并且还要求润滑脂顺利流入润滑部位的性质。在所用的轴承为外圈转动轴承时,特别强烈地要求该润滑脂的流入性。其原因是由于离心力作用等,而导致润滑脂难以流入润滑部位。另一方面,如果流入性过好,则润滑脂软化,并且从轴承中渗漏出来,因而寿命短。因此,要求一种能够取得耐热性和流入性平衡的润滑脂。
作为外圈转动的汽车电气装置·辅助机器用滚动轴承,包括汽车空调用电磁离合器、中间滑轮、空转轮滑轮、张力滑轮等中所用的轴承,同样,内圈转动轴承包括交流发电机等中所用的轴承。
另外,在外圈转动时作为长寿命的润滑脂,由于如上述那样取得了平衡,因此不仅可用于外圈转动,而且还可以用于内圈转动的轴承。
作为汽车电气装置·辅助机器用滚动轴承中所用的润滑脂,一直使用主要以合成烃油或苯醚系合成油为基油的二脲润滑脂。在二脲润滑脂中,由于高温耐久性优异这样的原因,而多使用芳香族二脲润滑脂。然而,当这种润滑脂用于外圈转动轴承时,润滑脂对于润滑部位的流入性不足,因而轴承寿命绝对无法满足。
另一方面,作为使用增稠剂而提高流入性的例子,在专利文献1中,记载了在包含超过50质量%的量的酯系合成油的基油中,使用下述通式所表示的二脲化合物作为增稠剂的润滑脂组合物,
R1-NHCONH-R2-NHCONH-R3
式中,R1表示碳数为6~15的2价芳香族烃基,R1和R3为相同或不同的基团,它们表示环己基、碳数为7~12的环己基衍生基团、或碳数为8~20的烷基,并且环己基及其衍生基团的摩尔数相对于环己基、碳数为7~12的环己基衍生基团和碳数为8~20的烷基的总摩尔数的比例为50~100%。
然而,该润滑脂组合物中,基油和增稠剂的相容性不足,流入性欠缺,因而轴承寿命无法满足。
专利文献1:日本专利第2979274号
发明内容
发明要解决的问题
本发明的目的在于提供一种润滑脂组合物以及轴承。
本发明的其它目的在于提供一种改善了润滑脂对于润滑部位的流入性,并且即使高温环境下轴承寿命也长的轴承用润滑脂。
用于解决问题的手段
本发明提供以下的润滑脂组合物以及轴承。
1.一种润滑脂组合物,其特征在于,含有基油和增稠剂,其中基油包含酯系合成油,酯系合成油的含量为基油全体的20质量%以上,并且增稠剂包含下述通式(I)所表示的二脲化合物,
(I)R1-NHCONH-R2-NHCONH-R3
式中,R2表示碳数为6~15的2价芳香族烃基,R1和R3为相同或不同的基团,它们表示环己基、或碳数为8~22的直链或支化烷基,并且环己基的摩尔数相对于环己基和碳数为8~22的直链或支化烷基的总摩尔数的比例为60~95%。
2.如上述1所述的润滑脂组合物,其中酯系合成油是在分子内具有3元以上酯基的酯系合成油。
3.如上述1或2所述的润滑脂组合物,其中酯系合成油是选自三羟甲基丙烷酯油、偏苯三酸酯油、均苯四酸酯油、季戊四醇酯油、二季戊四醇酯油、以及复合酯油中的至少一种。
4.如上述1~3中任一项所述的润滑脂组合物,其用于轴承。
5.如上述4所述的润滑脂组合物,其中轴承是汽车电气装置·辅助机器用滚动轴承。
6.如上述5所述的润滑脂组合物,其中汽车电气装置·辅助机器用滚动轴承是外圈转动轴承。
7.封入了上述1~6任一项所述的润滑脂组合物的轴承。
发明效果
本发明的润滑脂组合物,改善了润滑脂对于润滑部位的流入性,并且即使高温环境下轴承寿命也长。因此,其用于轴承,特别是用于汽车电气装置辅助机器用滚动轴承,尤其用于汽车电气装置·辅助机器用滚动轴承的外圈转动中所用的轴承,发挥了优异的效果。
具体实施方式
如前所述,为了得到长寿命,对于润滑部位的流入性是必要的,但另一方面,如果流入性过高,则润滑脂软化,并且从轴承中渗漏出来,因而寿命短,因此,取得耐热性和流入性的平衡是很重要的。
本发明特征在于,提高了上述二脲化合物的环己基比例,从而确保了耐热性,并同时抑制了流入性,另一方面,通过使用因具有极性而和增稠剂具有亲和性的酯系合成油,而提高了润滑脂的流入性,因此取得了耐热性和流入性的平衡。
作为通常用于润滑脂组合物的增稠剂,可以列举含有Li或Na等的金属皂类、膨润土(ベントン、Bentone)、硅胶、二脲化合物、以聚四氟乙烯为代表的氟系增稠剂等非皂类。然而,金属皂类、膨润土、硅胶,无法满足耐热性,即无法满足高温下的轴承润滑寿命。此外,氟系增稠剂,虽然满足了耐热性,但非常昂贵,因此通用性不足。
因此,本发明的润滑脂组合物,特征在于使用通式(I)所表示的特定的二脲系增稠剂。
在通式(I)中,R1和R3所表示的环己基的摩尔数相对于环己基和碳数为8~22的直链或支化烷基的总摩尔数的比例为60~95%,并进一步优选为70~90%。
当该比例不到60%时,流入性变高,润滑脂软化,并且从轴承中渗漏出来,因而寿命短。此外,当其超过95%时,润滑脂变硬,流入性差,寿命短。
本发明的润滑脂组合物中所使用的基油包含酯系合成油。作为酯系合成油,可以列举以二-2-乙基己基己二酸酯(DOA)、二-2-乙基己基癸二酸酯(DOS)、二异癸基己二酸酯(DIDA)等为代表的二酯油、以偏苯三酸酯油等为代表的芳香族酯油、以三羟甲基丙烷酯油或季戊四醇酯油等为代表的多元醇酯油等。
特别优选的是在分子内具有3元以上的酯基的酯系合成油,例如,三羟甲基丙烷酯油、偏苯三酸酯油、均苯四酸酯油、季戊四醇酯油或二季戊四醇酯油,以及多元醇(例如,季戊四醇)与1元脂肪酸(例如,辛酸)和多元酸(例如,壬二酸)所合成的复合酯油等。
酯系合成油相对于基油全体的比例,优选为20质量%以上,进一步优选为50质量%以上,并最优选为100质量%。为了充分满足耐热性和流入性,优选含有20质量%以上。其原因是由于酯系合成油极性大,和增稠剂的亲和性大,因此有助于润滑脂对于润滑部位的流入性。
本发明的润滑脂组合物中所用的基油,还可以含有除酯系合成油以外的其它基油。作为其它基油,有矿物油、合成油。作为合成油的例子,可以列举二酯油、以聚α-烯烃为代表的合成烃油、以烷基二苯醚为代表的醚系合成油、以聚丙二醇为代表的聚二醇系合成油、聚硅氧烷系合成油、氟系合成油。
在本发明的润滑脂组合物中,可以根据需要使用在通常的润滑脂组合物中所用的任意添加剂。例如,可以列举以胺系、酚系为代表的抗氧化剂,亚硝酸钠等无机钝化剂,以磺酸盐系、琥珀酸系、胺系、羧酸盐为代表的防锈剂,以苯并三唑为代表的金属防腐蚀剂,以脂肪酸、脂肪酸酯、磷酸酯为代表的油性剂,以磷系、硫系、有机金属系为代表的耐磨剂或极压剂、以氧化金属盐、二硫化钼为代表的固体润滑剂等。
实施例
试验润滑脂的制备
在基油中,使规定量的胺(环己胺、硬脂胺、对甲苯胺)与芳香族二异氰酸酯(二苯基甲烷二异氰酸酯)反应,并用基油稀释至混合稠度为280,制成基础润滑脂。在该润滑脂中加入添加剂,制备实施例1~4和比较例1~4的润滑脂组合物。
环己基(CH)的含有率(%)=[{(环己基的摩尔数)/(环己基的摩尔数+烷基的摩尔数)}×100]
增稠剂A1~A5:脂环式·脂肪族二脲(使用环己胺和/或硬脂胺)
增稠剂B:芳香族二脲(使用对甲苯胺)
增稠剂C:Li皂(12-羟基硬脂酸锂)
基油
酯油A:三羟甲基丙烷酯油(40℃的运动粘度:24.5mm2/s)
酯油B:季戊四醇酯油(40℃的运动粘度:30.8mm2/s)
酯油C:二季戊四醇烷酯油(40℃的运动粘度:209mm2/s)
酯油D:复合酯油(40℃的运动粘度:102mm2/s)
矿物油:40℃的运动粘度:102mm2/s
合成烃油:40℃的运动粘度:63.3mm2/s
苯醚油:二烷基二苯基醚油(40℃的运动粘度:100mm2/s)
添加剂A:胺系抗氧化剂(烷基二苯胺)
添加剂B:磺酸盐系防锈剂(二壬基萘磺酸锌)
润滑脂组合物的试验方法
混合稠度(JIS K2220):稠度统一为280。
外圈转动试验
评价高温下轴承寿命的外圈转动试验。在下述条件下运转,判断发动机的过电流、振动异常,或者比规定温度上升+15℃时的寿命。
轴承形式:6203橡胶封口
试验温度:160℃
转动数:16000rpm
试验荷重:径向荷重800N
轴承润滑寿命试验(根据ASTM D3336)
评价高温下轴承寿命的内圈转动试验。在下述条件下运转,判断发动机的过电流或者比规定温度上升+15℃时的寿命。
轴承形式:6204金属封口
试验温度:180℃
转动数:10000rpm
试验荷重:轴向荷重66.7N
          径向荷重66.7N
综合评价
外圈转动试验合格:500小时以上  不合格:不到500小时
轴承润滑试验合格:500小时以上  不合格:不到500小时
在两项试验中合格的情况:○,其它:×
结果示于表1。
[表1]
  成分   实施例1   实施例2   实施例3   实施例4   比较例1   比较例2   比较例3   比较例4
  增稠剂A1   14.0
  增稠剂A2   14.0
  增稠剂A3   14.0
  增稠剂A4   14.0   14.0
  增稠剂A5   14.0
  增稠剂B   23.0
  增稠剂C   9.0
  酯油A   20.5
  酯油B   45.1   45.1   87.0
  酯油C   73.8   36.9   36.9
  酯油D   49.2   8.2   73.0
  矿物油   8.2
  合成烃油   61.5
  苯醚油   32.8   73.8
  添加剂A   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0
  添加剂B   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0
  混合稠度   280   280   280   280   280   280   280   280
  增稠剂中的CH率   70   75   87   90   50   90   0   0
基油中的酯油率 90 25 100 60 100 10 100 100
  外圈转动试验(H)   520   550   1020   770   300   390   240   20
  轴承润滑寿命试验(H)   600   610   1000   810   330   370   515   28
  综合评价   ○   ○   ○   ○   ×   ×   ×   ×
环己基(CH)量为60~95%的通式(I)的增稠剂,并且基油中的酯系合成油的含量为基油全体的20质量%以上的实施例1~4的润滑脂组合物,其外圈转动试验和轴承润滑寿命试验的结果都为500小时以上,可知耐热性和流入性优异。
相反,使用环己基(CH)量为50%的通式(I)的增稠剂的比较例1,基油中的酯系合成油的含量为基油全体的10质量%的比较例2,使用不含有环己基(CH)的通式(I)的增稠剂的比较例3和4的润滑脂组合物,外圈转动试验、轴承润滑寿命试验或两者不到500小时,可知未达到本发明的目的。

Claims (7)

1.一种润滑脂组合物,其特征在于,含有基油和增稠剂,其中基油包含酯系合成油,酯系合成油的含量为基油全体的20质量%以上,并且增稠剂包含下述通式(I)所表示的二脲化合物,
(I)R1-NHCONH-R2-NHCONH-R3
式中,R2表示碳数为6~15的2价芳香族烃基,R1和R3为相同或不同的基团,它们表示环己基、或碳数为8~22的直链或支化烷基,并且环己基的摩尔数相对于环己基和碳数为8~22的直链或支化烷基的总摩尔数的比例为60~95%。
2.如权利要求1所述的润滑脂组合物,其中,酯系合成油是在分子内具有3元以上酯基的酯系合成油。
3.如权利要求1或2所述的润滑脂组合物,其中,酯系合成油是选自三羟甲基丙烷酯油、偏苯三酸酯油、均苯四酸酯油、季戊四醇酯油、二季戊四醇酯油、以及复合酯油中的至少一种。
4.如权利要求1~3任一项所述的润滑脂组合物,其用于轴承。
5.如权利要求4所述的润滑脂组合物,其中,轴承是汽车电气装置·辅助机器用滚动轴承。
6.如权利要求5所述的润滑脂组合物,其中,汽车电气装置·辅助机器用滚动轴承是外圈转动轴承。
7.装入了权利要求1~6任一项所述的润滑脂组合物的轴承。
CN200780052363A 2007-03-26 2007-04-24 润滑脂组合物以及轴承 Pending CN101636477A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007079734A JP2008239706A (ja) 2007-03-26 2007-03-26 グリース組成物及び軸受
JP079734/2007 2007-03-26

Publications (1)

Publication Number Publication Date
CN101636477A true CN101636477A (zh) 2010-01-27

Family

ID=39788220

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780052363A Pending CN101636477A (zh) 2007-03-26 2007-04-24 润滑脂组合物以及轴承

Country Status (6)

Country Link
US (2) US9085744B2 (zh)
EP (1) EP2135927A4 (zh)
JP (1) JP2008239706A (zh)
KR (1) KR101265168B1 (zh)
CN (1) CN101636477A (zh)
WO (1) WO2008117478A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103140578A (zh) * 2011-09-30 2013-06-05 日本精工株式会社 滚动轴承用润滑脂组合物及滚动轴承
CN103403137A (zh) * 2011-03-04 2013-11-20 协同油脂株式会社 润滑脂组合物及封入润滑脂的滚动轴承
CN103732729A (zh) * 2011-07-28 2014-04-16 日本精工株式会社 Ev、hev驱动电动机轴承用润滑脂组合物以及ev、hev驱动电动机轴承
CN105008738A (zh) * 2012-12-03 2015-10-28 日本精工株式会社 润滑脂封入轴承
CN106103675A (zh) * 2014-03-12 2016-11-09 协同油脂株式会社 润滑脂组合物及封入润滑脂的车轮用轴承
CN107406793A (zh) * 2015-03-18 2017-11-28 Ntn株式会社 润滑脂组合物

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008239706A (ja) 2007-03-26 2008-10-09 Kyodo Yushi Co Ltd グリース組成物及び軸受
JP5756587B2 (ja) * 2008-12-03 2015-07-29 協同油脂株式会社 アンギュラ玉軸受用グリース組成物及びそれを用いたアンギュラ玉軸受
JP5367511B2 (ja) * 2009-08-28 2013-12-11 コスモ石油ルブリカンツ株式会社 グリース組成物
JP5664890B2 (ja) * 2009-10-15 2015-02-04 協同油脂株式会社 風力発電機軸受用グリース組成物
JP5214649B2 (ja) 2010-02-26 2013-06-19 協同油脂株式会社 アンギュラ玉軸受を使用したハブユニット軸受用グリース組成物及びハブユニット軸受
JP5766425B2 (ja) * 2010-10-20 2015-08-19 協同油脂株式会社 グリース組成物
CN103097504B (zh) * 2011-08-26 2014-06-18 日本精工株式会社 润滑脂组合物和滚动装置
JP5930343B2 (ja) * 2011-09-15 2016-06-08 クリューバー リュブリケーション ミュンヘン ソシエタス ヨーロピア ウント コンパニー コマンディートゲゼルシャフトKlueber Lubrication Muenchen SE & Co.KG 耐熱グリース
JP5895723B2 (ja) * 2011-09-26 2016-03-30 日本精工株式会社 車輪支持用転がり軸受ユニット
JP6041202B2 (ja) * 2012-10-26 2016-12-07 協同油脂株式会社 グリース組成物
JP5991477B2 (ja) * 2012-10-31 2016-09-14 協同油脂株式会社 ハブユニット軸受用グリース組成物
JP6071061B2 (ja) * 2013-06-05 2017-02-01 協同油脂株式会社 グリース組成物
JP6704805B2 (ja) * 2015-07-08 2020-06-03 住鉱潤滑剤株式会社 非延焼性グリース組成物
WO2017047347A1 (ja) * 2015-09-15 2017-03-23 富士フイルム株式会社 グリース組成物
JP2017171717A (ja) * 2016-03-22 2017-09-28 住鉱潤滑剤株式会社 非延焼性グリース組成物
JP6870894B2 (ja) * 2017-01-24 2021-05-12 住鉱潤滑剤株式会社 難燃性グリース組成物
JP6905921B2 (ja) * 2017-11-22 2021-07-21 コスモ石油ルブリカンツ株式会社 グリース組成物
WO2021054328A1 (ja) * 2019-09-18 2021-03-25 株式会社ジェイテクト グリース組成物および転がり軸受

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820815A (en) * 1954-04-08 1958-01-21 Exxon Research Engineering Co Synthetic lubricating compositions and process for their preparation
DE3340680A1 (de) * 1983-11-10 1985-05-23 Henkel Kgaa Verfahren zur erhoehung der viskositaet von oelen
JP2576898B2 (ja) * 1989-03-04 1997-01-29 日本石油株式会社 グリース組成物
JPH07796B2 (ja) * 1989-08-22 1995-01-11 日本精工株式会社 高速ころがり軸受用グリース組成物
JP2979274B2 (ja) 1992-06-29 1999-11-15 日本精工株式会社 高速ころがり軸受用グリース組成物
JP3337593B2 (ja) * 1995-06-22 2002-10-21 日本精工株式会社 転がり軸受用グリース組成物
JPH0959661A (ja) 1995-08-21 1997-03-04 Nippon Seiko Kk グリース組成物
JP2001107073A (ja) * 1999-10-08 2001-04-17 Kyodo Yushi Co Ltd グリース組成物
JP2001304281A (ja) 2000-04-20 2001-10-31 Nsk Ltd 転がり軸受ユニット
JP2002021859A (ja) 2000-07-07 2002-01-23 Koyo Seiko Co Ltd 玉軸受
JP2003306687A (ja) * 2002-04-16 2003-10-31 Nsk Ltd 生分解性グリース組成物
JP2005180575A (ja) 2003-12-19 2005-07-07 Ntn Corp 密封型転がり軸受
EP1719813A4 (en) * 2004-02-23 2010-11-03 Nsk Ltd LUBRICANT COMPOSITION AND ROLLING DEVICE
WO2006109541A1 (ja) * 2005-03-31 2006-10-19 Nippon Oil Corporation 一方向クラッチ用グリース組成物
JP2008239706A (ja) 2007-03-26 2008-10-09 Kyodo Yushi Co Ltd グリース組成物及び軸受

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403137A (zh) * 2011-03-04 2013-11-20 协同油脂株式会社 润滑脂组合物及封入润滑脂的滚动轴承
CN103732729A (zh) * 2011-07-28 2014-04-16 日本精工株式会社 Ev、hev驱动电动机轴承用润滑脂组合物以及ev、hev驱动电动机轴承
CN103732729B (zh) * 2011-07-28 2016-06-22 日本精工株式会社 Ev、hev驱动电动机轴承用润滑脂组合物以及ev、hev驱动电动机轴承
US9567545B2 (en) 2011-07-28 2017-02-14 Nsk Ltd. Grease composition for EV/HEV driving motor bearing and EV/HEV driving motor bearing
CN103140578A (zh) * 2011-09-30 2013-06-05 日本精工株式会社 滚动轴承用润滑脂组合物及滚动轴承
CN105008738A (zh) * 2012-12-03 2015-10-28 日本精工株式会社 润滑脂封入轴承
CN106103675A (zh) * 2014-03-12 2016-11-09 协同油脂株式会社 润滑脂组合物及封入润滑脂的车轮用轴承
CN106103675B (zh) * 2014-03-12 2019-02-15 协同油脂株式会社 润滑脂组合物及封入润滑脂的车轮用轴承
US10584750B2 (en) 2014-03-12 2020-03-10 Kyodo Yushi Co., Ltd. Grease composition and grease-filled wheel bearing
CN107406793A (zh) * 2015-03-18 2017-11-28 Ntn株式会社 润滑脂组合物
CN107406793B (zh) * 2015-03-18 2021-02-26 Ntn株式会社 润滑脂组合物

Also Published As

Publication number Publication date
US20150225668A1 (en) 2015-08-13
EP2135927A1 (en) 2009-12-23
US9085744B2 (en) 2015-07-21
US10005980B2 (en) 2018-06-26
KR20090106659A (ko) 2009-10-09
US20100093567A1 (en) 2010-04-15
WO2008117478A1 (ja) 2008-10-02
KR101265168B1 (ko) 2013-05-27
EP2135927A4 (en) 2012-10-31
JP2008239706A (ja) 2008-10-09

Similar Documents

Publication Publication Date Title
CN101636477A (zh) 润滑脂组合物以及轴承
JP3337593B2 (ja) 転がり軸受用グリース組成物
EP1930400B1 (en) Lubricant composition
US20050250653A1 (en) Grease composition and rolling bearing
EP2264132B1 (en) Grease composition and bearings
EP2687584B1 (en) Grease composition
JP5738712B2 (ja) グリース組成物
KR101654116B1 (ko) 허브 유닛 베어링용 그리스 조성물
JPWO2013015413A1 (ja) Ev,hev駆動モータ軸受用グリース組成物及びev,hev駆動モータ軸受
CN103415603A (zh) 润滑脂组合物
JP2008222739A (ja) グリース組成物及び機械部材
CN109563432A (zh) 润滑脂组合物
KR20130073977A (ko) 그리스 조성물
JP4434685B2 (ja) グリース組成物および該グリース封入軸受
EP3428254A1 (en) Grease composition
JP2013253257A (ja) グリース組成物及び軸受
JP5753993B2 (ja) グリース組成物及び軸受
EP3178910B1 (en) Grease composition
JP2008121748A (ja) インバータ駆動モータ用グリース封入軸受
JP2006316082A (ja) グリース組成物およびグリース封入転がり軸受
JP2007217521A (ja) グリース組成物および該グリース封入軸受

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20100127