JPH09324189A - Grease composition for constant velocity joint - Google Patents
Grease composition for constant velocity jointInfo
- Publication number
- JPH09324189A JPH09324189A JP8142787A JP14278796A JPH09324189A JP H09324189 A JPH09324189 A JP H09324189A JP 8142787 A JP8142787 A JP 8142787A JP 14278796 A JP14278796 A JP 14278796A JP H09324189 A JPH09324189 A JP H09324189A
- Authority
- JP
- Japan
- Prior art keywords
- calcium salt
- weight
- constant velocity
- content
- component
- 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.)
- Granted
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- 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
- C10M169/06—Mixtures of thickeners and additives
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- C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
- C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
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- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/24—Lubricating compositions characterised by the thickener being a macromolecular compound containing nitrogen
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- C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
-
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
- C10M2219/089—Overbased salts
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- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
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- 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
- C10N2010/12—Groups 6 or 16
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- 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
-
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- 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
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- 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
- C10N2040/32—Wires, ropes or cables lubricants
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- 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
- C10N2040/34—Lubricating-sealants
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- 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
- C10N2040/36—Release agents or mold release agents
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- 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
- C10N2040/38—Conveyors or chain belts
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- 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
- C10N2040/40—Generators or electric motors in oil or gas winning field
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- 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
- C10N2040/42—Flashing oils or marking oils
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- 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
- C10N2040/44—Super vacuum or supercritical use
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/50—Medical uses
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/04—Oxidation, e.g. ozonisation
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- Lubricants (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、等速ジョイント用
グリース組成物、特にプランジング型等速ボールジョイ
ント用または固定型等速ボールジョイント用グリース組
成物に関するものである。潤滑される等速ジョイント部
分には、極めて高い面圧が発生し、ジョイント部分は、
複雑なころがりすべり作用を受ける。このため、異常摩
耗や金属疲労が発生し、ハクリ現象、すなわち、ジョイ
ントのフレーキングが発生する。本発明は、このような
等速ジョイントを潤滑し、ジョイントの摩耗を効果的に
低減し、潤滑部分のフレーキングの発生を効果的に防止
することのできる等速ジョイント用グリース組成物に関
するものである。TECHNICAL FIELD The present invention relates to a grease composition for a constant velocity joint, and more particularly to a grease composition for a plunging type constant velocity ball joint or a fixed type constant velocity ball joint. Extremely high surface pressure is generated in the lubricated constant velocity joint part, and the joint part
It receives a complicated rolling and sliding action. As a result, abnormal wear and metal fatigue occur, causing a peeling phenomenon, that is, flaking of the joint. The present invention relates to a grease composition for a constant velocity joint that can lubricate such a constant velocity joint, effectively reduce the wear of the joint, and effectively prevent the occurrence of flaking in the lubricated portion. is there.
【0002】[0002]
【従来の技術】従来、このような等速ジョイントに用い
られている潤滑グリースとしては、二硫化モリブデンを
含有しリチウム石けんを増ちょう剤とした極圧グリース
や、二硫化モリブデンに硫黄−リン系極圧剤やナフテン
酸の鉛塩を添加しリチウム石けんを増ちょう剤とした極
圧グリースが挙げられる。しかしながらこれらの等速ジ
ョイント用グリースは、近年の高性能自動車において発
生する厳しい作用条件の下では、必ずしも満足なものと
はいえない。最近、4輪駆動(FFタイプ)自動車の数
が急激に増加している。これらの自動車に使用する等速
ジョイントはできるだけ軽量かつ小型のものにすること
が必要である。プランジング型等速ボールジョイントと
して用いられているダブルオフセット型等速ジョイント
やクロスグルーブ型等速ジョイント等、また固定型等速
ボールジョイントとして用いられているバーフィールド
ジョイント等は、いずれも6個のボールでトルクを伝達
する構造を持つ。これらの等速ジョイントでは、回転時
高面圧下で複雑なころがりすべりの往復運動により、ボ
ールおよびボールと接触する金属表面に繰り返し応力が
加わり、金属疲労によるフレーキング現象が発生し易
い。近年のエンジンの高出力化により、従来のエンジン
と比較して面圧が高くなり、また燃費向上のため自動車
が軽量化され、ジョイントのサイズも小さくなってきて
いる。このため、相対的に高面圧となり、従来のグリー
スではフレーキング現象を充分に防止することができな
い。また、グリースの耐熱性向上も必要になってきてい
る。2. Description of the Related Art Conventionally, lubricating greases used in such constant velocity joints include extreme pressure greases containing molybdenum disulfide and using lithium soap as a thickener, and molybdenum disulfide containing sulfur-phosphorus-based grease. Examples of extreme pressure grease include lithium soap as a thickener by adding an extreme pressure agent or a lead salt of naphthenic acid. However, these constant velocity joint greases are not always satisfactory under the severe working conditions generated in recent high-performance automobiles. Recently, the number of four-wheel drive (FF type) automobiles has been rapidly increasing. The constant velocity joints used in these automobiles must be as light and small as possible. Double offset constant velocity joints and cross groove constant velocity joints used as plunging constant velocity ball joints, and bar field joints used as fixed constant velocity ball joints, etc. Has a structure that transmits torque with a ball. In these constant velocity joints, the ball and the metal surface in contact with the ball are repeatedly subjected to stress by the reciprocating motion of the rolling and sliding under a high surface pressure during rotation, and a flaking phenomenon due to metal fatigue is likely to occur. Due to the higher output of engines in recent years, the surface pressure is higher than that of conventional engines, the weight of automobiles is reduced to improve fuel efficiency, and the size of joints is becoming smaller. For this reason, the surface pressure becomes relatively high, and the conventional grease cannot sufficiently prevent the flaking phenomenon. In addition, it has become necessary to improve the heat resistance of grease.
【0003】[0003]
【発明が解決しようとする課題】従って、本発明の目的
は、フレーキング防止性能及び耐熱性に優れた等速ジョ
イント用の新規なグリース組成物を提供することであ
る。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a novel grease composition for constant velocity joints, which has excellent anti-flaking performance and heat resistance.
【0004】[0004]
【課題を解決するための手段】本発明者等は等速ジョイ
ントの摩耗を最適化し、異常な摩耗と金属疲労によるジ
ョイントのフレーキングの問題を解消し、かつ耐熱性に
優れたグリース組成物を開発するため種々の研究を行っ
た。上記のような高面圧での複雑なころがりすべり往復
運動を伴う潤滑条件で使用するグリースの性能評価を、
振動摩擦摩耗試験機として知られるSRV(Schwingung
Reibung und Verschleiss) 試験機を用いて行い、各種
極圧添加剤、固体潤滑剤または各添加剤の組合せによる
潤滑特性(摩擦係数、摩耗)について検討した。その結
果本発明者等は、基油、ウレア系増ちょう剤、二硫化モ
リブデン、特定の化合物のカルシウム塩又は過塩基性カ
ルシウム塩、金属を含まない硫黄−リン系極圧剤、及び
モリブデンジチオカーバメートからなるグリースが、低
摩擦係数、低摩耗等の望ましい潤滑特性を示すことを見
出し、さらに、実際の等速ジョイントを用いた耐久性能
試験においても、従来の等速ジョイント用グリースとは
異なり、フレーキング現象の発生を防止し得ることを確
認し、本発明を完成するに至った。The present inventors have optimized the wear of constant velocity joints to solve the problem of joint flaking due to abnormal wear and metal fatigue, and provide a grease composition having excellent heat resistance. Various studies were conducted to develop it. Performance evaluation of grease used under the lubrication condition with complicated rolling and sliding reciprocating motion under high surface pressure as described above,
SRV (Schwingung) known as a vibration friction wear tester
Reibung und Verschleiss) testing machine was used to examine the lubrication characteristics (friction coefficient, wear) of various extreme pressure additives, solid lubricants or combinations of each additive. As a result, the inventors have found that base oils, urea thickeners, molybdenum disulfide, calcium salts or overbased calcium salts of specific compounds, metal-free sulfur-phosphorus extreme pressure agents, and molybdenum dithiocarbamate. It has been found that the grease consisting of the following shows desirable lubrication characteristics such as low friction coefficient and low wear.In addition, in the durability performance test using an actual constant velocity joint, unlike the conventional constant velocity joint grease, After confirming that the occurrence of the king phenomenon can be prevented, the present invention has been completed.
【0005】本発明の上記目的は以下の成分からなる等
速ジョイント用グリース組成物により効果的に達成する
ことができる。 (a) 基油、(b) ウレア系増ちょう剤、(c) 二硫化モリブ
デン、(d) 酸化ワックスのカルシウム塩、石油スルホン
酸のカルシウム塩、アルキル芳香族スルホン酸のカルシ
ウム塩、サリシレートのカルシウム塩、フェネートのカ
ルシウム塩、酸化ワックスの過塩基性カルシウム塩、石
油スルホン酸の過塩基性カルシウム塩、アルキル芳香族
スルホン酸の過塩基性カルシウム塩、サリシレートの過
塩基性カルシウム塩、及びフェネートの過塩基性カルシ
ウム塩からなる群から選択される少なくとも1種のカル
シウム塩、(e) 金属を含まない硫黄−リン系極圧剤、及
び(f) モリブデンジチオカーバメート。The above object of the present invention can be effectively achieved by a grease composition for constant velocity joints comprising the following components. (a) Base oil, (b) Urea thickener, (c) Molybdenum disulfide, (d) Calcium salt of oxidized wax, calcium salt of petroleum sulfonic acid, calcium salt of alkylaromatic sulfonic acid, calcium salicylate Salt, phenate calcium salt, oxidized wax overbased calcium salt, petroleum sulfonic acid overbased calcium salt, alkyl aromatic sulfonic acid overbased calcium salt, salicylate overbased calcium salt, and phenate overbased calcium salt. At least one calcium salt selected from the group consisting of basic calcium salts, (e) a metal-free sulfur-phosphorus extreme pressure agent, and (f) molybdenum dithiocarbamate.
【0006】[0006]
【発明の実施の形態】本発明に使用する(a) 成分の基油
としては、鉱物油、エステル系合成油、エーテル系合成
油、炭化水素系合成油等の普通に使用されている潤滑油
またはそれらの混合油が挙げられるが、これらに限定さ
れるものではない。本発明に使用する(b) 成分のウレア
系増ちょう剤としては、例えば、ジウレア化合物、ポリ
ウレア化合物が挙げられるが、特に限定されるものでは
ない。ジウレア化合物は、例えば、ジイソシアネートと
モノアミンとの反応で得られる。ジイソシアネートとし
ては、フェニレンジイソシアネート、ジフェニルジイソ
シアネート、フェニルジイソシアネート、ジフェニルメ
タンジイソシアネート、オクカデカンジイソシアネー
ト、デカンジイソシアネート、ヘキサンジイソシアネー
ト等が挙げられ、モノアミンとしては、オクチルアミ
ン、ドデシルアミン、ヘキサデシルアミン、オクタデシ
ルアミン、オレイルアミン、アニリン、p−トルイジ
ン、シクロヘキシルアミン等が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION As the base oil of the component (a) used in the present invention, commonly used lubricating oils such as mineral oil, ester synthetic oil, ether synthetic oil and hydrocarbon synthetic oil are used. Or a mixed oil thereof, but is not limited thereto. Examples of the urea thickener as the component (b) used in the present invention include, but are not limited to, diurea compounds and polyurea compounds. The diurea compound is obtained, for example, by reacting a diisocyanate with a monoamine. Examples of the diisocyanate include phenylene diisocyanate, diphenyl diisocyanate, phenyl diisocyanate, diphenylmethane diisocyanate, octadecane diisocyanate, decane diisocyanate, and hexane diisocyanate.As the monoamine, octylamine, dodecylamine, hexadecylamine, octadecylamine, oleylamine Aniline, p-toluidine, cyclohexylamine and the like can be mentioned.
【0007】ポリウレア化合物は、例えば、ジイソシア
ネートとジアミンとの反応で得られる。ジイソシアネー
トとしては、ジウレア化合物の生成に用いられるものと
同様のものが挙げられ、ジアミンとしては、エチレンジ
アミン、プロパンジアミン、ブタンジアミン、ヘキサン
ジアミン、オクタンジアミン、フェニレンジアミン、ト
リレンジアミン、キシレンジアミン等が挙げられる。特
に好ましいウレア系増ちょう剤は、アニリン、p−トル
イジン等の芳香族系アミン、シクロヘキシルアミン、又
はこれらの混合物と、ジイソシアネート化合物との反応
によって得られる、ジウレア化合物であり、ジウレア化
合物中のアリール基が6又は7個の炭素原子を有し、ジ
ウレア化合物中のアリール基対シクロヘキシル基の割合
が、100〜0%のものが好ましい。The polyurea compound is obtained, for example, by the reaction of diisocyanate and diamine. Examples of the diisocyanate include those similar to those used for producing a diurea compound, and examples of the diamine include ethylenediamine, propanediamine, butanediamine, hexanediamine, octanediamine, phenylenediamine, tolylenediamine, and xylenediamine. Can be A particularly preferred urea thickener is a diurea compound obtained by reacting an aromatic amine such as aniline and p-toluidine, cyclohexylamine, or a mixture thereof with a diisocyanate compound, and an aryl group in the diurea compound. Preferably has 6 or 7 carbon atoms and the ratio of the aryl group to the cyclohexyl group in the diurea compound is 100 to 0%.
【0008】本発明に使用する(c) 成分である二硫化モ
リブデンは、一般に極圧添加剤として広く用いられ、そ
の潤滑機構としては、層状格子構造を持つことから、す
べり運動下で薄層状に容易にせん断し、摩擦を低減させ
る他、ジョイントの焼け付き防止にも効果がある。種々
の粒径の二硫化モリブデンが知られており、フィッシャ
ー法として知られる、Fisher Sub-sieve sizerによる平
均粒径で、0.25〜10μmの粒径を有するもの、特に
0.55〜0.85μmの平均粒径を有するものが適してい
る。Molybdenum disulfide, which is the component (c) used in the present invention, is generally widely used as an extreme pressure additive, and since its lubrication mechanism has a layered lattice structure, it forms a thin layer under sliding motion. It easily shears, reduces friction, and is effective in preventing seizure of joints. Molybdenum disulfide having various particle diameters is known, and an average particle diameter by Fisher Sub-sieve sizer known as the Fischer method is 0.25 to 10 μm, especially
Those having an average particle size of 0.55 to 0.85 μm are suitable.
【0009】本発明に使用する(d)成分である、カルシ
ウム塩又は過塩基性カルシウム塩としては、エンジン油
等の潤滑油に用いられる金属系清浄分散剤や防錆剤とし
て知られている、酸化ワックスのカルシウム塩、潤滑油
留分中の芳香族炭化水素成分のスルホン化によって得ら
れる石油スルホン酸のカルシウム塩、ジノニルナフタレ
ンスルホン酸やアルキルベンゼンスルホン酸のような合
成スルホン酸のカルシウム塩、サリシレートのカルシウ
ム塩、フェネートのカルシウム塩、酸化ワックスの過塩
基性カルシウム塩、石油スルホン酸の過塩基性カルシウ
ム塩、アルキル芳香族スルホン酸の過塩基性カルシウム
塩、サリシレートの過塩基性カルシウム塩、及びフェネ
ートの過塩基性カルシウム塩が挙げられる。The calcium salt or the overbased calcium salt, which is the component (d) used in the present invention, is known as a metal-based detergent-dispersant and a rust preventive used for lubricating oil such as engine oil, Calcium salt of oxidized wax, calcium salt of petroleum sulfonic acid obtained by sulfonation of aromatic hydrocarbon component in lubricating oil fraction, calcium salt of synthetic sulfonic acid such as dinonylnaphthalene sulfonic acid and alkylbenzene sulfonic acid, salicylate Calcium salt, phenate calcium salt, oxidized wax overbased calcium salt, petroleum sulfonic acid overbased calcium salt, alkyl aromatic sulfonic acid overbased calcium salt, salicylate overbased calcium salt, and phenate The overbased calcium salt of.
【0010】本発明に使用する(e)成分である、金属を
含まない硫黄−リン系極圧剤として好ましいものは、硫
黄分15〜35重量%及びリン分0.5〜3重量%のもの
であり、硫黄成分とリン成分の比率を調整することによ
り、優れた摩耗防止性能や焼け付き防止性能を発揮させ
ることができる。硫黄成分が上記範囲より多いとジョイ
ントが腐食し易くなり、リン成分が上記範囲より多いと
ジョイントの摩耗防止効果が得られなくなる。また両者
とも上記範囲より少ない場合は、目的とする摩耗防止性
能や焼け付き防止性能を十分に発揮させることが困難に
なる。The component (e) used in the present invention, which is preferable as the metal-free sulfur-phosphorus extreme pressure agent, has a sulfur content of 15 to 35% by weight and a phosphorus content of 0.5 to 3% by weight. Therefore, by adjusting the ratio of the sulfur component and the phosphorus component, it is possible to exhibit excellent antiwear property and anti-burn property. If the sulfur component is more than the above range, the joint is likely to corrode, and if the phosphorus component is more than the above range, the effect of preventing the joint from being worn cannot be obtained. On the other hand, if both are less than the above range, it becomes difficult to sufficiently exert the desired wear prevention performance and seizure prevention performance.
【0011】本発明に使用する(f)成分である、モリブ
デンジチオカーバメートの好ましい例としては下記の式
で表されるものが挙げられる。 (R1R2N-CS-S)2Mo2OmSn (式中、R1及びR2は、それぞれ独立して、炭素数1〜2
4、好ましくは3〜18のアルキル基を表し、mは0〜
3、nは4〜1であり、m+n=4である。) 本発明の等速ジョイント用グリース組成物には、上記成
分に加えて、酸化防止剤、防錆剤、防食剤等を含有させ
ることができる。Preferred examples of molybdenum dithiocarbamate which is the component (f) used in the present invention include those represented by the following formula. (R 1 R 2 N-CS-S) 2 Mo 2 OmSn (In the formula, R 1 and R 2 each independently have 1 to 2 carbon atoms.
4, preferably 3 to 18 alkyl groups, m is 0 to
3, n is 4-1 and m + n = 4. In addition to the above components, the grease composition for constant velocity joints of the present invention may contain an antioxidant, a rust preventive, an anticorrosive, and the like.
【0012】本発明の等速ジョイント用グリース組成物
は、好ましくは、グリース組成物の全重量に対して、
(a) 成分の基油:52〜97.8重量%、(b) 成分のウ
レア系増ちょう剤:1〜25重量%、(c) 成分の二硫化
モリブデン:0.5〜5重量%、(d) 成分のカルシウム塩
又は過塩基性カルシウム塩:0.5〜15重量%、(e) 成
分の金属を含まない硫黄−リン系極圧剤:0.1〜3重量
%、(f) 成分のモリブデンジチオカーバメート:0.1〜
5重量%を含んでいる。(b) 成分の含有量が1重量%未
満では、増ちょう効果が少なくなり、グリース化しにく
くなり、25重量%より多いと、得られた組成物が硬く
なり過ぎ、所期の効果が得られにくくなる。(c) 成分の
含有量が0.5重量%未満、(d) 成分の含有量が0.5
重量%未満、(e) 成分の含有量が0.1重量%未満、又
は(f) 成分の含有量が0.1重量%未満では、所期の効
果を得ることが困難になり、一方(c) 成分の含有量が5
重量%より多く、(d) 成分の含有量が15重量%より多
く、(e) 成分の含有量が3重量%より多く、又は(f) 成
分の含有量が5重量%より多い場合にも、効果の増大は
なく、フレーキング防止効果においては、むしろ逆効果
である。The grease composition for constant velocity joints of the present invention preferably contains, based on the total weight of the grease composition,
(a) component base oil: 52 to 97.8% by weight, (b) component urea-based thickener: 1 to 25% by weight, (c) component molybdenum disulfide: 0.5 to 5% by weight, (d) Calcium salt or overbased calcium salt as component: 0.5 to 15% by weight, (e) metal-free sulfur-phosphorus extreme pressure agent: 0.1 to 3% by weight, (f) Ingredient molybdenum dithiocarbamate: 0.1-
It contains 5% by weight. When the content of the component (b) is less than 1% by weight, the thickening effect is reduced and it becomes difficult to form a grease. When the content is more than 25% by weight, the obtained composition becomes too hard and the desired effect is obtained. It gets harder. The content of component (c) is less than 0.5% by weight, and the content of component (d) is 0.5.
If the content is less than 0.1% by weight, the content of the component (e) is less than 0.1% by weight, or the content of the component (f) is less than 0.1% by weight, it is difficult to obtain the desired effect. c) The content of ingredients is 5
When the content of the component (d) is more than 15% by weight, the content of the component (e) is more than 3% by weight, or the content of the component (f) is more than 5% by weight. The effect is not increased, and the anti-flaking effect is rather the opposite effect.
【0013】[0013]
【実施例】次に本発明を実施例及び比較例により説明す
る。 〔実施例1〜9、比較例1〜3〕容器に基油4100g
とジフェニルメタン−4,4′−ジイソシアネート10
12gをとり、混合物を70〜80℃に加熱した。別容
器に基油4100gとシクロヘキシルアミン563g、
アニリン225gをとり、70〜80℃に加熱後、先の
容器に加えた。混合物をよく攪拌しながら、30分間反
応させ、その後攪拌しながら、160℃まで昇温し、放
冷し、ベースウレアグリースを得た。このベースグリー
スに、表1に示す配合で、添加剤を添加し、適宜基油を
加え、得られる混合物を、三段ロールミルにて、ちょう
度No. 1 グレードに調整した。EXAMPLES Next, the present invention will be described with reference to Examples and Comparative Examples. [Examples 1 to 9 and Comparative Examples 1 to 3] 4100 g of base oil in a container
And diphenylmethane-4,4'-diisocyanate 10
12 g were taken and the mixture was heated to 70-80 ° C. In a separate container, 4100 g of base oil and 563 g of cyclohexylamine,
225 g of aniline was taken, heated to 70 to 80 ° C., and added to the above container. The mixture was allowed to react for 30 minutes with good stirring, and then the temperature was raised to 160 ° C. with stirring and allowed to cool to obtain a base urea grease. Additives were added to this base grease in the composition shown in Table 1, and a base oil was added as appropriate. The resulting mixture was adjusted to a consistency No. 1 grade using a three-roll mill.
【0014】〔実施例10〕容器に基油440gとジフ
ェニルメタン−4,4′−ジイソシアネート58.9gを
とり、混合物を70〜80℃に加熱した。別容器に基油
440gとオクチルアミン61.1gをとり、70〜80
℃に加熱後、先の容器に加え、よく攪拌しながら、30
分間反応させた。その後攪拌しながら、160℃まで昇
温し、放冷後、ベース脂肪族アミンウレアグリースを得
た。このベースグリースに、表1に示す配合で、添加剤
を添加し、適宜基油を加え、得られる混合物を、三段ロ
ールミルにて、ちょう度No. 1 グレードに調整した。上
記実施例及び比較例において、グリースの基油として、
以下の特性を有する鉱油を使用した。 粘度 40℃ 157 mm2/s 100℃ 14 mm2/s 粘度指数 88 また、二硫化モリブデンに硫黄−リン系極圧剤とナフテ
ン酸の鉛塩を含有する市販リチウムグリースを比較例4
のグリースとした。Example 10 440 g of base oil and 58.9 g of diphenylmethane-4,4'-diisocyanate were placed in a container, and the mixture was heated to 70-80 ° C. In a separate container, take 440 g of base oil and 61.1 g of octylamine, and add 70-80
After heating to 0 ° C, add to the previous container and stir well.
Allowed to react for minutes. Thereafter, while stirring, the temperature was raised to 160 ° C., and after standing to cool, a base aliphatic amine urea grease was obtained. Additives were added to this base grease in the composition shown in Table 1, and a base oil was added as appropriate. The resulting mixture was adjusted to a consistency No. 1 grade using a three-roll mill. In the above examples and comparative examples, as the base oil of grease,
A mineral oil having the following properties was used. Viscosity 40 ° C. 157 mm 2 / s 100 ° C. 14 mm 2 / s Viscosity index 88 Further, a commercially available lithium grease containing a sulfur-phosphorus extreme pressure agent and a lead salt of naphthenic acid in molybdenum disulfide is used as Comparative Example 4
Grease.
【0015】これらのグリースにつき以下に示す試験方
法で物性の評価を行い、得られた結果を表1に併記す
る。 <ちょう度> ISO 2137 による <滴 点> ISO 2176 による <SRV試験> テストピース ボール 直径 10mm (SUJ-2) 円筒プレート 直径 24mm × 7.85mm (SUJ-2) 評価条件 荷重 500 N 周波数 15 Hz 振幅 3000μm 時間 10分 試験温度 25℃ 測定項目 最大摩擦係数 試験後のボール平均摩耗痕径 (mm) 試験後のプレート最大摩耗深さ(μm)The physical properties of these greases were evaluated by the following test methods, and the obtained results are also shown in Table 1. <Consistency> According to ISO 2137 <Drop point> According to ISO 2176 <SRV test> Test piece Ball diameter 10 mm (SUJ-2) Cylindrical plate Diameter 24 mm × 7.85 mm (SUJ-2) Evaluation conditions Load 500 N Frequency 15 Hz Amplitude 3000 μm Time 10 minutes Test temperature 25 ℃ Measurement item Maximum friction coefficient Ball average wear scar diameter after test (mm) Maximum plate wear depth after test (μm)
【0016】<実ジョイント台上耐久試験>下記条件に
て、実ジョイントでの台上耐久試験を行い、フレーキン
グ等の発生の有無を評価した。 試験条件 回転数 1000rpm トルク 392N・m ジョイント角度 8゜ 運転時間 100 時間 ジョイントタイプ バーフィールドジョイント クロスグルーブジョイント 測定項目 運転後のジョイント各部のフレーキング発生の有無<Actual joint bench endurance test> Under the following conditions, an actual joint bench endurance test was performed to evaluate whether flaking or the like occurred. Test conditions Rotation speed 1000 rpm Torque 392 N ・ m Joint angle 8 ° Operating time 100 hours Joint type Barfield joint Cross groove joint Measurement item Flaking of joint parts after operation
【0017】[0017]
【発明の効果】以上説明してきたように、本発明の等速
ジョイント用グリース組成物は、(a)基油、(b) ウレア
系増ちょう剤、(c) 二硫化モリブデン、(d) 酸化ワック
スのカルシウム塩、石油スルホン酸のカルシウム塩、ア
ルキル芳香族スルホン酸のカルシウム塩、サリシレート
のカルシウム塩、フェネートのカルシウム塩、酸化ワッ
クスの過塩基性カルシウム塩、石油スルホン酸の過塩基
性カルシウム塩、アルキル芳香族スルホン酸の過塩基性
カルシウム塩、サリシレートの過塩基性カルシウム塩、
及びフェネートの過塩基性カルシウム塩からなる群から
選択される少なくとも1種のカルシウム塩、(e) 金属を
含まない硫黄−リン系極圧剤、及び(f) モリブデンジチ
オカーバメートを配合したことにより、表1に示す実施
例および比較例の結果からもわかるように、優れた摩耗
防止効果およびフレーキング防止効果を奏する。As described above, the grease composition for a constant velocity joint of the present invention comprises (a) a base oil, (b) a urea thickener, (c) molybdenum disulfide, and (d) an oxidation agent. Wax calcium salt, petroleum sulfonic acid calcium salt, alkyl aromatic sulfonic acid calcium salt, salicylate calcium salt, phenate calcium salt, oxidized wax overbased calcium salt, petroleum sulfonic acid overbased calcium salt, Alkyl aromatic sulfonic acid overbased calcium salt, salicylate overbased calcium salt,
And by blending at least one calcium salt selected from the group consisting of overbased calcium salts of phenates, (e) a metal-free sulfur-phosphorus extreme pressure agent, and (f) molybdenum dithiocarbamate, As can be seen from the results of the examples and comparative examples shown in Table 1, the excellent effects of preventing wear and flaking are exhibited.
【0018】[0018]
【表1】 表1 実 施 例 1 2 3 4 5 1) ジウレアグリース 94.0 94.0 93.5 93.5 94.0 2) ジウレアグリース − − − − − 3) 二硫化モリブデン 3.0 3.0 3.0 3.0 3.0 4) 酸化ワックスCa 2.0 − − − − 5) 石油スルホン酸Ca − 2.0 − − − 6) ナフタレンスルホン酸Ca − − 2.0 − − 7) カルシウムサリシレート − − − 2.0 − 8) カルシウムフェネート − − − − 2.0 9) カルシウムスルホネート − − − − − 10) カルシウムスルホネート − − − − − 11) 硫黄−リン系極圧剤 0.5 0.5 0.5 0.5 0.5 12) MDC 0.5 0.5 − − 0.5 13) MDC − − 1.0 1.0 − 14) ちょう度 60w 321 327 335 326 329 15) 滴点(℃) 260< 260< 260< 260< 260< 16) SRV 試験 最大摩擦係数 0.06 0.06 0.06 0.06 0.06 17) ボール平均摩耗痕径(mm) 0.62 0.63 0.59 0.61 0.61 18) プレート最大摩耗深さ(μm) 0.4 0.4 0.4 0.4 0.4 19) 台上耐久試験 ○ ○ ○ ○ ○ 20) 台上耐久試験 ○ ○ ○ ○ ○ [Table 1] Table 1 Example 1 2 3 4 5 1) Diurea grease 94.0 94.0 93.5 93.5 94.0 2) Diurea grease − − − − − 3) Molybdenum disulfide 3.0 3.0 3.0 3.0 3.0 4) Oxide wax Ca 2.0 − − − − 5) Petroleum sulfonate Ca − 2.0 − − − 6) Naphthalene sulfonate Ca − − 2.0 − − 7) Calcium salicylate − − − 2.0 − 8) Calcium phenate − − − − 2.0 9) Calcium sulfonate − − − − − 10) Calcium sulfonate − − − − − 11) Sulfur-phosphorus extreme pressure agent 0.5 0.5 0.5 0.5 0.5 12) MDC 0.5 0.5 − − 0.5 13) MDC − − 1.0 1.0 − 14) Consistency 60w 321 327 335 326 329 15) Drop point (℃) 260 <260 <260 <260 <260 < 16) SRV test maximum friction coefficient 0.06 0.06 0.06 0.06 0.06 17) Ball average wear scar diameter (mm) 0.62 0.63 0.59 0.61 0.61 18) Plate maximum wear Depth (μm) 0.4 0.4 0.4 0.4 0.4 19) Durability test on bench ○ ○ ○ ○ ○ 20) Endurance test on bench ○ ○ ○ ○ ○
【0019】[0019]
【表2】 (続き) 実 施 例 6 7 8 9 10 1) ジウレアグリース 94.0 93.5 94.0 92.5 − 2) ジウレアグリース − − − − 93.5 3) 二硫化モリブデン 3.0 3.0 3.0 3.0 3.0 4) 酸化ワックスCa − − − − − 5) 石油スルホン酸Ca − − − − − 6) ナフタレンスルホン酸Ca − − 2.0 2.0 2.0 7) カルシウムサリシレート − − − − − 8) カルシウムフェネート − − − − − 9) カルシウムスルホネート 2.0 − − − − 10) カルシウムスルホネート − 2.0 − − − 11) 硫黄−リン系極圧剤 0.5 0.5 0.5 0.5 0.5 12) MDC 0.5 − − − − 13) MDC − 1.0 0.5 2.0 1.0 14) ちょう度 60w 332 325 328 324 317 15) 滴点(℃) 260< 260< 260< 260< 260< 16) SRV 試験 最大摩擦係数 0.06 0.06 0.06 0.06 0.06 17) ボール平均摩耗痕径(mm) 0.60 0.60 0.61 0.61 0.62 18) プレート最大摩耗深さ(μm) 0.4 0.4 0.4 0.4 0.4 19) 台上耐久試験 ○ ○ ○ ○ ○ 20) 台上耐久試験 ○ ○ ○ ○ ○ [Table 2] (continued) Example 6 7 8 9 10 1) Diurea grease 94.0 93.5 94.0 92.5 − 2) Diurea grease − − − − 93.5 3) Molybdenum disulfide 3.0 3.0 3.0 3.0 3.0 4) Oxide wax Ca − − − − − 5) Petroleum sulfonate Ca − − − − − 6) Naphthalene sulfonate Ca − − 2.0 2.0 2.0 7) Calcium salicylate − − − − − 8) Calcium phenate − − − − − 9) Calcium sulfonate 2.0 − − − − 10) Calcium sulfonate − 2.0 − − − 11) Sulfur-phosphorus extreme pressure agent 0.5 0.5 0.5 0.5 0.5 12) MDC 0.5 − − − − 13) MDC − 1.0 0.5 2.0 1.0 14) Consistency 60w 332 325 328 324 317 15) Dropping point (℃) 260 <260 <260 <260 <260 < 16) SRV test maximum friction coefficient 0.06 0.06 0.06 0.06 0.06 17) Ball average wear scar diameter (mm) 0.60 0.60 0.61 0.61 0.62 18) Plate maximum wear depth (μm) 0.4 0.4 0.4 0.4 0.4 19) Bench durability test ○ ○ ○ ○ 20) Bench endurance test ○ ○ ○ ○ ○
【0020】[0020]
【表3】 比 較 例 1 2 3 4 1) ジウレアグリース 97.0 98.0 98.0 2) ジウレアグリース − − − 3) 二硫化モリブデン 3.0 − − 4) 酸化ワックスCa − − − 5) 石油スルホン酸Ca − − − 6) ナフタレンスルホン酸Ca − 2.0 − 7) カルシウムサリシレート − − − 8) カルシウムフェネート − − − 9) カルシウムスルホネート − − 2.0 10) カルシウムスルホネート − − − 11) 硫黄−リン系極圧剤 − − − 12) MDC − − −13) MDC − − − 14) ちょう度 60w 324 321 321 280 15) 滴点(℃) 260< 260< 260< 190 16) SRV 試験 最大摩擦係数 0.15< 0.09 0.15< 0.15< 17) ボール平均摩耗痕径(mm) 測定不可 0.63 測定不可 測定不可18) プレート最大摩耗深さ(μm) 測定不可 0.6 測定不可 測定不可 19) 台上耐久試験 × × × ×20) 台上耐久試験 × × × × [Table 3] Comparative example 1 2 3 4 1) Diurea grease 97.0 98.0 98.0 2) Diurea grease − − − 3) Molybdenum disulfide 3.0 − − 4) Oxidized wax Ca − − − 5) Petroleum sulfonate Ca − − − 6) Naphthalene sulfonic acid Ca − 2.0 − 7) Calcium salicylate − − − 8) Calcium phenate − − − 9) Calcium sulfonate − − 2.0 10) Calcium sulfonate − − − 11) Sulfur-phosphorus extreme pressure agent − − − 12) MDC − − − 13) MDC − − − 14) Consistency 60w 324 321 321 280 15) Drop point (° C) 260 <260 <260 <190 16) SRV test maximum friction coefficient 0.15 <0.09 0.15 <0.15 <17 ) Ball average wear scar diameter (mm) Not measurable 0.63 Not measurable Not measurable 18) Maximum plate wear depth (μm) Not measurable 0.6 Not measurable Not measurable 19) Bench top durability test × × × × 20) Bench top durability test × × × ×
【0021】1) モノアミンとして、シクロヘキシルア
ミンとアニリンを混合使用したジウレア化合物を用いた
ジウレアグリース 2) モノアミンとして、オクチルアミンを使用したジウ
レア化合物を用いたジウレアグリース 3) 二硫化モリブデン(商品名:Molysulfide CLIMAX M
OLYBDENUM COMPANY 製平均粒径0.7 μm) 4) 酸化ワックスカルシウム塩(商品名:Alox 165 Alo
x Corporation 製) 5) 石油スルホン酸カルシウム塩(商品名:スルホール
Ca-45 株式会社松村石油研究所製) 6) ジノニルナフタレンスルホン酸カルシウム塩(商品
名:NA-SUL 729 KING INDUSTRIES社製) 7) カルシウムサリシレート(商品名:OSCA423 オスカ
化学株式会社製) 8) カルシウムフェネート(商品名:OLOA 218A オロナ
イトジャパン株式会社製) 9) 過塩基性カルシウムスルホネート(商品名:Lubr
izol 5283 日本ルーブリゾール(Lubrizol)社製) 10) 過塩基性カルシウムスルホネート(商品名:Bryt
on C-400C Witco Corporation 製) 11) 硫黄−リン系極圧剤(商品名:Anglamol 99 日本
ルーブリゾール(Lubrizol)社製) 12) MDC:モリブデンジチオカーバメート(商品
名:Molyvan A R.T.Vanderbilt 社製) 13) MDC:モリブデンジチオカーバメート(商品
名:Molyvan 822 R.T.Vanderbilt 社製) 14) ちょう度 60W 15)滴点(℃) 16) 最大摩擦係数 17) 試験後のボール平均摩耗痕径(mm) 18) 試験後のプレート最大摩耗深さ(μm ) 19) 台上耐久試験:バーフィールドジョイント 20) 台上耐久試験:クロスグルーブジョイント (フレーキングの発生 有:×,無:○)* 市販二硫化モリブデン、硫黄−リン系極圧剤、ナフ
テン酸鉛入りグリース1) Diurea grease using a diurea compound using a mixture of cyclohexylamine and aniline as a monoamine 2) Diurea grease using a diurea compound using an octylamine as a monoamine 3) Molybdenum disulfide (trade name: Molysulfide CLIMAX M
OLYBDENUM COMPANY average particle size 0.7 μm) 4) Oxidized wax calcium salt (Product name: Alox 165 Alo)
x Corporation) 5) Petroleum sulfonate calcium salt (trade name: Thulhol
Ca-45 Matsumura Petroleum Institute Co., Ltd.) 6) Calcium salt of dinonylnaphthalene sulfonate (Product name: NA-SUL 729 KING INDUSTRIES) 7) Calcium salicylate (Product name: OSCA423 Osca Chemical Co., Ltd.) 8) Calcium phenate (product name: OLOA 218A Oronite Japan Co., Ltd.) 9) Overbased calcium sulfonate (product name: Lubr
izol 5283 Lubrizol Japan 10) Overbased calcium sulfonate (trade name: Bryt
on C-400C Witco Corporation) 11) Sulfur-phosphorus extreme pressure agent (trade name: Anglamol 99, Lubrizol Japan) 12) MDC: molybdenum dithiocarbamate (trade name: Molyvan A RT Vanderbilt) 13 ) MDC: Molybdenum dithiocarbamate (Product name: Molyvan 822 RT Vanderbilt) 14) Consistency 60W 15) Drop point (° C) 16) Maximum friction coefficient 17) Ball average wear scar diameter after test (mm) 18) After test Plate maximum wear depth (μm) 19) Benchtop durability test: Barfield joint 20) Benchtop durability test: Cross groove joint (with flaking: ×, No: ○) * Commercially available molybdenum disulfide, sulfur − Grease containing phosphorus-based extreme pressure agent and lead naphthenate
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 C10M 159:20 159:22 159:24 137:14 139:00) C10N 10:12 30:04 30:06 40:04 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location C10M 159: 20 159: 22 159: 24 137: 14 139: 00) C10N 10:12 30:04 30 : 06 40:04
Claims (4)
(c) 二硫化モリブデン、(d) 酸化ワックスのカルシウム
塩、石油スルホン酸のカルシウム塩、アルキル芳香族ス
ルホン酸のカルシウム塩、サリシレートのカルシウム
塩、フェネートのカルシウム塩、酸化ワックスの過塩基
性カルシウム塩、石油スルホン酸の過塩基性カルシウム
塩、アルキル芳香族スルホン酸の過塩基性カルシウム
塩、サリシレートの過塩基性カルシウム塩、及びフェネ
ートの過塩基性カルシウム塩からなる群から選択される
少なくとも1種のカルシウム塩、(e) 金属を含まない硫
黄−リン系極圧剤、及び(f) モリブデンジチオカーバメ
ートを含有する等速ジョイント用グリース組成物。(1) a base oil, (b) a urea thickener,
(c) Molybdenum disulfide, (d) Calcium salt of oxidized wax, calcium salt of petroleum sulfonic acid, calcium salt of alkylaromatic sulfonic acid, calcium salt of salicylate, calcium salt of phenate, overbased calcium salt of oxidized wax. At least one selected from the group consisting of an overbased calcium salt of petroleum sulfonic acid, an overbased calcium salt of an alkyl aromatic sulfonic acid, an overbased calcium salt of salicylate, and an overbased calcium salt of a phenate. A grease composition for a constant velocity joint, comprising a calcium salt, (e) a metal-free sulfur-phosphorus extreme pressure agent, and (f) molybdenum dithiocarbamate.
量が、1〜25重量%、二硫化モリブデンの含有量が0.
5〜5重量%、カルシウム塩又は過塩基性カルシウム塩
の含有量が0.5〜15重量%、硫黄−リン系極圧剤の含
有量が0.1〜3重量%、モリブデンジチオカーバメート
の含有量が0.1〜5重量%である、請求項1記載の等速
ジョイント用グリース組成物。2. The total composition has a urea thickener content of 1 to 25% by weight and a molybdenum disulfide content of 0.
5 to 5% by weight, the content of calcium salt or overbased calcium salt is 0.5 to 15% by weight, the content of sulfur-phosphorus extreme pressure agent is 0.1 to 3% by weight, the content of molybdenum dithiocarbamate The grease composition for constant velocity joints according to claim 1, wherein the amount is 0.1 to 5% by weight.
が、硫黄分15〜35重量%およびリン分0.5〜3重量
%である、請求項1記載の等速ジョイント用グリース組
成物。3. The grease composition for a constant velocity joint according to claim 1, wherein the sulfur-phosphorus extreme pressure agent containing no metal has a sulfur content of 15 to 35% by weight and a phosphorus content of 0.5 to 3% by weight. Stuff.
が、硫黄分15〜35重量%およびリン分0.5〜3重量
%である、請求項2記載の等速ジョイント用グリース組
成物。4. The grease composition for a constant velocity joint according to claim 2, wherein the sulfur-phosphorus extreme pressure agent containing no metal has a sulfur content of 15 to 35% by weight and a phosphorus content of 0.5 to 3% by weight. Stuff.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14278796A JP3320611B2 (en) | 1996-06-05 | 1996-06-05 | Grease composition for constant velocity joints |
DE69708974T DE69708974T2 (en) | 1996-06-05 | 1997-05-15 | Grease composition for constant velocity joints |
EP97303319A EP0811675B1 (en) | 1996-06-05 | 1997-05-15 | Grease composition for constant velocity joints |
ES97303319T ES2164991T3 (en) | 1996-06-05 | 1997-05-15 | COMPOSITION OF FAT FOR HOMOCINETIC COUPLING JOINTS. |
CN97113570A CN1069691C (en) | 1996-06-05 | 1997-06-04 | Grease composition for constant velocity joints |
TW086107739A TW349118B (en) | 1996-06-05 | 1997-06-05 | Grease composition for constant velocity joints |
KR1019970023290A KR100410724B1 (en) | 1996-06-05 | 1997-06-05 | Grease composition for constant velocity joints |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14278796A JP3320611B2 (en) | 1996-06-05 | 1996-06-05 | Grease composition for constant velocity joints |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09324189A true JPH09324189A (en) | 1997-12-16 |
JP3320611B2 JP3320611B2 (en) | 2002-09-03 |
Family
ID=15323603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14278796A Expired - Lifetime JP3320611B2 (en) | 1996-06-05 | 1996-06-05 | Grease composition for constant velocity joints |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0811675B1 (en) |
JP (1) | JP3320611B2 (en) |
KR (1) | KR100410724B1 (en) |
CN (1) | CN1069691C (en) |
DE (1) | DE69708974T2 (en) |
ES (1) | ES2164991T3 (en) |
TW (1) | TW349118B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002053884A (en) * | 2000-08-10 | 2002-02-19 | Kyodo Yushi Co Ltd | Grease composition |
WO2006004035A1 (en) * | 2004-07-01 | 2006-01-12 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints and constant velocity joints prelubricated with the same |
JP2006096949A (en) * | 2004-09-30 | 2006-04-13 | Toyoda Mach Works Ltd | Grease composition for ball type constant velocity joint and ball type constant velocity joint |
JP2006283830A (en) * | 2005-03-31 | 2006-10-19 | Ntn Corp | Constant velocity universal joint |
JP2007224134A (en) * | 2006-02-23 | 2007-09-06 | Nippon Koyu Ltd | Flame-retardant lubricating grease composition |
JP2008231310A (en) * | 2007-03-22 | 2008-10-02 | Nsk Ltd | Diurea grease composition |
CN103052820A (en) * | 2010-08-05 | 2013-04-17 | Ntn株式会社 | Fixed-type constant-velocity universal joint |
US9567548B2 (en) | 2012-10-05 | 2017-02-14 | Kyodo Yushi Co., Ltd. | Grease composition |
JP2018168221A (en) * | 2017-03-29 | 2018-11-01 | 新日鐵住金株式会社 | Grease composition for rolling bearing |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6432889B1 (en) | 1998-07-15 | 2002-08-13 | Nippon Mitsubishi Oil Corporation | Grease composition |
JP4524007B2 (en) * | 1999-06-29 | 2010-08-11 | 協同油脂株式会社 | Grease composition for constant velocity joints |
CN1100131C (en) * | 2000-04-29 | 2003-01-29 | 中国石油化工集团公司 | Grease lubricant for constant-velocity universal joint and its preparation method |
TW200624549A (en) | 2004-11-08 | 2006-07-16 | Thk Co Ltd | Grease composition conforming to vibration and guide employing the same |
WO2008040383A1 (en) * | 2006-10-07 | 2008-04-10 | Gkn Driveline International Gmbh | Grease composition for use in constant velocity joints comprising at least one tri-nuclear molybdenum compound and a urea derivative thickener |
JP5399203B2 (en) * | 2009-10-22 | 2014-01-29 | Ntn株式会社 | Fixed type constant velocity universal joint |
CN116410813A (en) * | 2021-12-31 | 2023-07-11 | 朗盛特殊化学品有限公司 | Polyurea/calcium sulfonate complex grease composition for use in constant velocity joints |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07796B2 (en) * | 1989-08-22 | 1995-01-11 | 日本精工株式会社 | Grease composition for high-speed rolling bearings |
JP2915611B2 (en) * | 1991-04-01 | 1999-07-05 | 協同油脂株式会社 | Grease composition for constant velocity joints |
JP2989311B2 (en) * | 1991-04-30 | 1999-12-13 | 協同油脂株式会社 | Grease composition for constant velocity joints |
JP3519417B2 (en) * | 1991-10-04 | 2004-04-12 | 協同油脂株式会社 | Grease composition for bearings with excellent low starting torque for high temperature, high speed and high load application |
JP3001171B2 (en) * | 1993-05-25 | 2000-01-24 | 昭和シェル石油株式会社 | Urea grease composition |
EP0719316B1 (en) * | 1994-07-15 | 1999-12-22 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints |
EP0773280B1 (en) * | 1995-11-13 | 2002-10-09 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints |
-
1996
- 1996-06-05 JP JP14278796A patent/JP3320611B2/en not_active Expired - Lifetime
-
1997
- 1997-05-15 EP EP97303319A patent/EP0811675B1/en not_active Expired - Lifetime
- 1997-05-15 DE DE69708974T patent/DE69708974T2/en not_active Expired - Lifetime
- 1997-05-15 ES ES97303319T patent/ES2164991T3/en not_active Expired - Lifetime
- 1997-06-04 CN CN97113570A patent/CN1069691C/en not_active Expired - Lifetime
- 1997-06-05 TW TW086107739A patent/TW349118B/en not_active IP Right Cessation
- 1997-06-05 KR KR1019970023290A patent/KR100410724B1/en not_active IP Right Cessation
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002053884A (en) * | 2000-08-10 | 2002-02-19 | Kyodo Yushi Co Ltd | Grease composition |
JP4641336B2 (en) * | 2000-08-10 | 2011-03-02 | 協同油脂株式会社 | Grease composition |
WO2006004035A1 (en) * | 2004-07-01 | 2006-01-12 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joints and constant velocity joints prelubricated with the same |
JP2006016481A (en) * | 2004-07-01 | 2006-01-19 | Kyodo Yushi Co Ltd | Grease composition for constant velocity joint and constant velocity joint sealed with the same |
US7910526B2 (en) | 2004-07-01 | 2011-03-22 | Kyodo Yushi Co., Ltd. | Grease composition for constant velocity joint and constant velocity joint containing the composition sealed therein |
JP2006096949A (en) * | 2004-09-30 | 2006-04-13 | Toyoda Mach Works Ltd | Grease composition for ball type constant velocity joint and ball type constant velocity joint |
JP2006283830A (en) * | 2005-03-31 | 2006-10-19 | Ntn Corp | Constant velocity universal joint |
JP2007224134A (en) * | 2006-02-23 | 2007-09-06 | Nippon Koyu Ltd | Flame-retardant lubricating grease composition |
JP2008231310A (en) * | 2007-03-22 | 2008-10-02 | Nsk Ltd | Diurea grease composition |
CN103052820A (en) * | 2010-08-05 | 2013-04-17 | Ntn株式会社 | Fixed-type constant-velocity universal joint |
US9567548B2 (en) | 2012-10-05 | 2017-02-14 | Kyodo Yushi Co., Ltd. | Grease composition |
JP2018168221A (en) * | 2017-03-29 | 2018-11-01 | 新日鐵住金株式会社 | Grease composition for rolling bearing |
Also Published As
Publication number | Publication date |
---|---|
DE69708974D1 (en) | 2002-01-24 |
KR980002219A (en) | 1998-03-30 |
CN1069691C (en) | 2001-08-15 |
EP0811675A1 (en) | 1997-12-10 |
JP3320611B2 (en) | 2002-09-03 |
ES2164991T3 (en) | 2002-03-01 |
CN1168916A (en) | 1997-12-31 |
EP0811675B1 (en) | 2001-12-12 |
DE69708974T2 (en) | 2002-08-08 |
KR100410724B1 (en) | 2004-03-30 |
TW349118B (en) | 1999-01-01 |
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