JPH1135965A - Grease composition for constant velocity joint - Google Patents

Grease composition for constant velocity joint

Info

Publication number
JPH1135965A
JPH1135965A JP9214171A JP21417197A JPH1135965A JP H1135965 A JPH1135965 A JP H1135965A JP 9214171 A JP9214171 A JP 9214171A JP 21417197 A JP21417197 A JP 21417197A JP H1135965 A JPH1135965 A JP H1135965A
Authority
JP
Japan
Prior art keywords
grease
constant velocity
urea
flaking
sodium thiosulfate
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
Application number
JP9214171A
Other languages
Japanese (ja)
Other versions
JP3812995B2 (en
Inventor
Koyo Ozaki
幸洋 尾崎
Tomoo Munakata
智郎 宗像
Tsuyoshi Yoshida
強 吉田
Riyuuichi Masumori
隆一 益森
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.)
Showa Shell Sekiyu KK
Original Assignee
Showa Shell Sekiyu KK
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 Showa Shell Sekiyu KK filed Critical Showa Shell Sekiyu KK
Priority to JP21417197A priority Critical patent/JP3812995B2/en
Priority to EP98945164A priority patent/EP0998544B1/en
Priority to KR10-2000-7000688A priority patent/KR100503108B1/en
Priority to CN98806285A priority patent/CN1097630C/en
Priority to PCT/EP1998/004983 priority patent/WO1999005240A1/en
Priority to DE69816085T priority patent/DE69816085T2/en
Publication of JPH1135965A publication Critical patent/JPH1135965A/en
Application granted granted Critical
Publication of JP3812995B2 publication Critical patent/JP3812995B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
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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)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a grease compsn. for constant velocity joints which has very good extreme pressure properties and can prevent flaking of constant velocity joints of automobiles by incorporating a particular amt. of sodium thiosulfate into a base oil and a urea thickener. SOLUTION: Sodium thiosulfate is incorporated in an amt. of 0.05 to 30 wt.% into a base grease comprising a urea thickener dispersed in a base oil to obtain a grease compsn. for constant velocity joints. The effect of preventing flaking to improve the endurance is considered attributable to the fact that sulfur contained in sodium thiosulfate is reacted with iron in metals at a high temp. to form a layer produced by chemical bonds that prevents contact between metals, thereby inhibiting abrasion under high face pressure. Further, it is considered that the urea compd. as the thickener is adsorbed onto the surface of the metals to prevent abrasion, thereby improving the endurance. The grease compsn. may further comprise optional conventional various additives, such as antioxidants, extreme pressure/abrasion preventives, and thickeners.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、自動車の等速ジョ
イント〔Ｃｏｎｓｔａｎｔ ＶｅｌｏｃｉｔｙＪｏｉｎ
ｔ，以下ＣＶＪと略する〕用グリースに関する。ＣＶＪ
のグリース潤滑は、往復動の転がりと滑りが混在した高
面圧下の摩擦条件下で行なわれるため極めて苛酷であ
る。本発明は、この潤滑箇所に適用してＣＶＪの異常摩
耗やフレーキングの発生を防止し、極めて長寿命な耐久
性を有した等速ジョイント用グリース組成物に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant velocity joint for an automobile.
t, hereinafter abbreviated as CVJ]. CVJ
Grease lubrication is extremely severe because it is performed under high surface pressure friction conditions in which reciprocating rolling and sliding are mixed. The present invention relates to a grease composition for a constant velocity joint which is applied to the lubricated portion to prevent abnormal wear and flaking of CVJ and has extremely long life and durability.

【０００２】[0002]

【従来の技術】自動車のＣＶＪは、ＦＦ車（前輪駆動
車）や４ＷＤ（四輪駆動車）およびＦＲ車（後輪駆動
車）に採用され、需要は増加の傾向にある。自動車の高
速化、高出力化、軽量化に伴い、ＣＶＪも小型化、高ト
ルク化、高速仕様化になってきているためＣＶＪのグリ
ース潤滑は、一段と厳しくなっている。ＣＶＪは、その
機構により固定型ジョイント（Ｆｉｘｅｄ Ｊｏｉｎ
ｔ）とプランジング型ジョイント（Ｐｌｕｎｇｉｎｇ
Ｊｏｉｎｔ）に区分される。このＣＶＪの中で特に固定
型ジョイントは、一般にホイール側に用いられ高角度か
つ高面圧下で使用されるため非常に苛酷である。2. Description of the Related Art Automobile CVJs are used in FF vehicles (front wheel drive vehicles), 4WD (four wheel drive vehicles) and FR vehicles (rear wheel drive vehicles), and the demand is increasing. Grease lubrication of CVJs has become more severe as CVJs have become smaller, have higher torque, and have been used at higher speeds as automobiles have become faster, more powerful, and lighter. CVJ has a fixed joint (Fixed Join) due to its mechanism.
t) and plunging joint (Plunging)
Joint). Among these CVJs, particularly, fixed joints are very severe because they are generally used on the wheel side and used at a high angle and under a high surface pressure.

【０００３】ＣＶＪ用グリースとして一般的なものは、
増ちょう剤にリチウム石けんを用い、硫黄−リン系極圧
剤、二硫化モリブデン等の添加剤を含有したものが多く
使用されている。最近では、耐熱性に優れたウレア系グ
リースに各種の極圧剤を添加したものも増えてきてい
る。[0003] The general grease for CVJ is
Many of those using lithium soap as a thickener and containing additives such as a sulfur-phosphorus extreme pressure agent and molybdenum disulfide are used. In recent years, urea greases having excellent heat resistance and various extreme pressure agents have been added.

【０００４】代表的な技術としては、ウレアグリースに
（Ａ）硫化ジアルキルジチオカルバミン酸モリブデン
と、（Ｂ）特定のジチオリン酸亜鉛化合物からなる極圧
添加剤と、（Ｃ）エポキシ化脂肪酸エステルまたはエポ
キシ化脂肪酸グリセライドが必須成分として含有された
等速ジョイント用グリース組成物が特開平６−５７２８
４号公報に開示されている。[0004] As typical techniques, urea grease includes (A) molybdenum sulfide dialkyldithiocarbamate, (B) an extreme pressure additive composed of a specific zinc dithiophosphate compound, and (C) epoxidized fatty acid ester or epoxidized compound. A grease composition for constant velocity joints containing a fatty acid glyceride as an essential component is disclosed in JP-A-6-5728.
No. 4 discloses this.

【０００５】また、ウレアグリースに関するその他の技
術は特公平４−３４５９０号、特開平６−５７２８３
号、特開平６−１００８７８号、特開平７−１９７０７
２号および特開平８−４１４８５号公報、ＵＳＰ４，８
４０，７４０号、ＵＳＰ５，１６０，６４５号、ＵＳＰ
５，４４９，４７１号明細書等に示されている。これら
の技術は、いずれも基グリースに有機モリブデン化合物
を加え、さらに他の添加剤（例えば、ジチオリン酸亜
鉛）と併用して摩擦摩耗を低減し、その効果によってフ
レーキングの発生を防止した技術と言える。Other techniques relating to urea grease are disclosed in Japanese Patent Publication No. 34590/1994 and Japanese Patent Application Laid-Open No. 6-57283.
JP-A-6-100878, JP-A-7-19707
No. 2, JP-A-8-41485, US Pat.
No. 40,740, USP 5,160,645, USP
5,449,471. All of these technologies add an organic molybdenum compound to the base grease and use it in combination with other additives (for example, zinc dithiophosphate) to reduce friction and wear, and to prevent flaking by its effect. I can say.

【０００６】しかしながら、これらの技術では摩擦や摩
耗低減効果が認められるが、ＣＶＪ機構内において、内
外輪みぞと玉およびケージと玉との複雑な往復動の転が
り滑り摩擦に基因する金属表面の疲労からくるフレーキ
ングに対しては、余り防止機能を果していないのが実状
である。[0006] However, although these techniques are effective in reducing friction and wear, in the CVJ mechanism, the fatigue of the metal surface due to the rolling sliding friction of the complex reciprocating motion between the inner and outer ring grooves and the balls and the cage and the balls. The fact is that the flaking does not perform much of the function of preventing flaking.

【０００７】そこで、ＣＶＪの製造メーカーやグリース
供給メーカーは高性能なＣＶＪ用グリースを選定するの
にチムケン試験、四球式ＥＰ試験、ファレックス試験、
ＳＲＶ試験およびハフナーフレッチング試験などの一般
の摩擦摩耗試験を用いてＣＶＪのフレーキング寿命を把
握しようと努力している。そして、これらの試験機を用
いて低摩擦係数のグリースを得ることでプランジングジ
ョイントに要求される振動は一応低減することができ
る。しかし、ＣＶＪの耐久性に関しては、潤滑条件が複
雑なため、前述した試験機では適性グリースを選定でき
ないため実際のＣＶＪを使った台上試験機を用いてフレ
ーキング寿命や摩耗の状態などの性能評価を行っている
現状にある。[0007] Therefore, CVJ manufacturers and grease suppliers select a high-performance CVJ grease by using a Timken test, a four-ball EP test, a Falex test, and the like.
Efforts have been made to determine the flaking life of CVJs using common friction and wear tests such as the SRV test and the Huffner fretting test. Then, by obtaining grease having a low coefficient of friction using these test machines, the vibration required for the plunging joint can be reduced for the time being. However, as for the durability of CVJ, the lubrication conditions are complicated, so that an appropriate grease cannot be selected with the above-mentioned testing machine. It is currently being evaluated.

【０００８】従って、一般の摩擦摩耗試験で優れた結果
を示すものが必ずしもＣＶＪのフレーキングを防止し、
耐久性が長いとは限らないという点がＣＶＪのフレーキ
ング防止技術の開発を困難なものとしている。Therefore, those showing excellent results in general friction and wear tests do not necessarily prevent flaking of CVJ,
The fact that the durability is not always long makes development of anti-flaking technology of CVJ difficult.

【０００９】[0009]

【発明が解決しようとする課題】本発明の目的は、ＣＶ
Ｊのフレーキングを防止できる新規な等速ジョイント用
グリース組成物を提供する点にある。An object of the present invention is to provide a CV
An object of the present invention is to provide a novel grease composition for a constant velocity joint which can prevent flaking of J.

【００１０】[0010]

【課題を解決するための手段】本発明者等は、グリース
に添加すると四球式ＥＰ試験で極めて高い融着荷重を示
すチオ硫酸ソーダに着眼し、実際のＣＶＪを用いて試験
を行い、従来グリースよりも優れたフレーキングの発生
防止の効果を認知し、本発明を達成するに至った。すな
わち本発明は、基油とウレア系増ちょう剤に対してチオ
硫酸ソーダ０．０５〜３０重量％を含有させたことを特
徴とする等速ジョイント用グリース組成物に関する。Means for Solving the Problems The present inventors focused on sodium thiosulfate, which shows an extremely high fusion load in a four-ball EP test when added to grease, conducted a test using an actual CVJ, and examined the conventional grease. Recognizing the superior effect of preventing the occurrence of flaking, the present invention was achieved. That is, the present invention relates to a grease composition for a constant velocity joint, comprising 0.05 to 30% by weight of sodium thiosulfate with respect to a base oil and a urea-based thickener.

【００１１】本発明に用いる基油としては、鉱油および
エステル油、エーテル油、炭化水素油等の合成油または
それらの混合油を用いることができる。As the base oil used in the present invention, mineral oils and synthetic oils such as ester oils, ether oils and hydrocarbon oils, or mixed oils thereof can be used.

【００１２】ウレア系増ちょう剤としては、ウレア系増
ちょう剤であればいずれのものも使用できる。ウレア系
増ちょう剤の例としては、ジウレア、トリウレア、テト
ラウレア等を挙げることができる。また、ウレア・ウレ
タン化合物およびウレア・イミド化合物のようにウレア
化合物を含む種々の増ちょう剤を用いることができる。As the urea thickener, any urea thickener can be used. Examples of urea thickeners include diurea, triurea, tetraurea and the like. Further, various thickeners containing a urea compound such as a urea / urethane compound and a urea / imide compound can be used.

【００１３】本発明に使用するチオ硫酸ソーダは、Ｎａ
2Ｓ2Ｏ3（無水）、Ｎａ2Ｓ2Ｏ3・５Ｈ2Ｏ（五水和物）
またはそれらの混合物を使用できる。また、チオ硫酸ソ
ーダを含む市販の添加剤（Ｄｅｓｉｌｕｂｅ８８，Ｄｅ
ｓｉｌｕｂｅ Ｔｅｃｈｎｏｌｏｇｙ，Ｉｎｃ．ＵＳ
Ａ）も使用できる。The sodium thiosulfate used in the present invention is Na
2 S 2 O 3 (anhydrous), Na 2 S 2 O 3 .5H 2 O (pentahydrate)
Or a mixture thereof can be used. In addition, a commercially available additive containing sodium thiosulfate (Desilube 88, De
silence Technology, Inc. US
A) can also be used.

【００１４】[0014]

【作用】本発明のチオ硫酸ソーダを配合したウレア系グ
リースがＣＶＪのフレーキングを防止し、耐久性を向上
させるという効果については、チオ硫酸ソーダ中のイオ
ウが高温において金属中の鉄と反応し、化学結合により
生成した層が金属接触を防ぎ、高面圧下において摩耗を
抑制していると考えられる。また、この添加剤はウレア
系グリースのみに有効に作用し、ＣＶＪのフレーキング
を防止することから、増ちょう剤であるウレア化合物が
金属表面に吸着し、摩耗を防止して耐久性を向上してい
ると推測される。The effect of the urea grease blended with sodium thiosulfate of the present invention to prevent flaking of CVJ and improve durability is as follows. Sulfur in sodium thiosulfate reacts with iron in metal at high temperature. It is considered that the layer formed by chemical bonding prevents metal contact and suppresses abrasion under high surface pressure. In addition, this additive effectively acts only on urea-based grease and prevents flaking of CVJ. Therefore, the urea compound as a thickener is adsorbed on the metal surface to prevent abrasion and improve durability. It is speculated that

【００１５】チオ硫酸ソーダの添加量は、ウレア系グリ
ース中に０．０５〜３０重量％、好ましくは０．２〜２
０重量％である。０．０５重量％未満の場合について
は、フレーキング防止効果が不十分であり、また３０重
量％を越えても効果の一層の増大はない。The amount of sodium thiosulfate added is 0.05 to 30% by weight, preferably 0.2 to 2% by weight in the urea grease.
0% by weight. When the amount is less than 0.05% by weight, the effect of preventing flaking is insufficient, and when it exceeds 30% by weight, the effect is not further increased.

【００１６】また本発明の組成物には、フェノール系や
アミン系の酸化防止剤、有機モリブデン化合物、二硫化
モリブデン、硫化油脂、硫化オレフィン、ポリサルファ
イド、フォスフェート、フォスファイト、チオフォスフ
ェート、ジチオリン酸亜鉛等の極圧／耐摩耗剤、ポリブ
デン、ポリメタクリレート等の増粘剤など、公知の各種
添加剤を配合することができる。Further, the composition of the present invention includes a phenol-based or amine-based antioxidant, an organic molybdenum compound, molybdenum disulfide, sulfurized oil and fat, sulfurized olefin, polysulfide, phosphate, phosphite, thiophosphate, zinc dithiophosphate. And various known additives such as an extreme pressure / antiwear agent such as, and a thickener such as polybutene and polymethacrylate.

【００１７】[0017]

【実施例】本発明を実施例および比較例を挙げて説明す
るが本発明はこれにより何ら限定されるものではない。EXAMPLES The present invention will be described with reference to examples and comparative examples, but the present invention is not limited thereto.

【００１８】表１および表２に示す配合で、基グリース
に添加剤を加え、三本ロールミルで処理し、実施例と比
較例のグリースを得た。基グリースの組成は、次に示す
通りである。なお、基油は１００℃の粘度が約１５ｍｍ
2／Ｓ の精製鉱油を用いた。Additives were added to the base grease according to the formulations shown in Tables 1 and 2, and the mixture was treated with a three-roll mill to obtain greases of Examples and Comparative Examples. The composition of the base grease is as follows. The base oil has a viscosity of about 15 mm at 100 ° C.
2 / S refined mineral oil was used.

【００１９】Ｉ．ジウレアグリース 基油（５４００ｇ）中でジフェニルメタン−４，４′−
ジイソシアネート（２９５．２ｇ）とオクチルアミン
（３０４．８ｇ）を反応させ、生成したウレア化合物を
均一に分散してグリースを得た。ウレア化合物の含有量
は、１０重量％である。I. Diurea grease Diphenylmethane-4,4'- in base oil (5400g)
Diisocyanate (295.2 g) was reacted with octylamine (304.8 g), and the resulting urea compound was uniformly dispersed to obtain grease. The content of the urea compound is 10% by weight.

【００２０】II．テトラウレアグリース 基油（５２８０ｇ）中でジフェニルメタン−４，４′−
ジイソシアネート（３３４．２ｇ）とステアリルアミン
（３４５．６ｇ）およびエチレンジアミン（４０．２
ｇ）を反応させ、生成したウレア化合物を均一に分散し
てグリースを得た。ウレア化合物の含有量は、１２重量
％である。II. Tetraurea grease Diphenylmethane-4,4'- in base oil (5280 g)
Diisocyanate (334.2 g), stearylamine (345.6 g) and ethylenediamine (40.2 g)
g) was reacted, and the generated urea compound was uniformly dispersed to obtain grease. The content of the urea compound is 12% by weight.

【００２１】III．リチウム石けんグリース 基油（５４６０ｇ）中で１２−ヒドロキシステアリン酸
リチウム（５４０ｇ）を溶解し、均一に分散することに
よりグリースを得た。リチウム石けんの含有量は、９重
量％である。III. Lithium soap grease Lithium 12-hydroxystearate (540 g) was dissolved in a base oil (5460 g) and uniformly dispersed to obtain a grease. The content of lithium soap is 9% by weight.

【００２２】得られたグリースについて、実際のＣＶＪ
を用いて台上耐久試験を行い、フレーキングの発生度合
を確認した。 〔試験条件〕 回転数 １４００ｒｐｍ 負荷トルク ２９４Ｎ・ｍ ジョイント角度 ６ｄｅｇ ジョイントタイプ バーフィールドジョイント また、ＡＳＴＭ Ｄ２５９６に規定する四球式ＥＰ試験
で融着荷重（Ｎ）を求めた。これらの結果を表１〜４に
併記する。With respect to the obtained grease, actual CVJ
A bench durability test was performed using the test sample to confirm the degree of occurrence of flaking. [Test conditions] Rotation speed 1400 rpm Load torque 294 Nm Joint angle 6 deg Joint type Barfield joint Further, the fusion load (N) was determined by a four-ball EP test specified in ASTM D2596. The results are shown in Tables 1 to 4.

【００２３】なお、表中、＊１〜７および＊＊は下記の
とおりである。 ＊１ Ｄｅｓｉｌｕｂｅ８８（Ｄｅｓｉｌｕｂｅ Ｔｅ
ｃｈｎｏｌｏｇｙ，Ｉｎｃ．製、商品名）はチオ硫酸ソ
ーダを含んだ無機のＳ−Ｐ系添加剤である。 ＊２ モリバンＡ（Ｖａｎｄｅｒｂｉｌｔ社製、商品
名）は、Ｍｏ−ＤＴＣ（モリブデンジチオカーバメー
ト）である。 ＊３ サクラルーブ６００（旭電化製、商品名）は、Ｍ
ｏ−ＤＴＣである。 ＊４ サクラルーブ３００（旭電化製、商品名）は、Ｍ
ｏ−ＤＴＰ（モリブデンジチオホスフェート）である。 ＊５ ルーブリゾール１３９５（Ｌｕｂｒｉｚｏｌ社
製、商品名）は、Ｚｎ−ＤＴＰ（ジンクジチオホスフェ
ート）である。 ＊６ アングラモル３３（Ｌｕｂｒｉｚｏｌ社製、商品
名）は、硫化オレフィンである。 ＊７ イルガルーブＴＰＰＴ（ＣＩＢＡ−ＧＥＩＧＹ社
製、商品名）は、トリフェニルホスホロチオネートであ
る。 ＊＊ フレーキング発生度合は、ＣＶＪを１２６０万回
転した後の状態と、２５２０万回転した後の状態を観察
し、つぎのように評価したものである。 ◎ フレーキング発生なし ○ 微少フレーキングあり △ 中フレーキングあり × 大フレーキングありIn the table, * 1 to 7 and ** are as follows. * 1 Desilube88 (Desilub Te
channel, Inc. Is an inorganic SP additive containing sodium thiosulfate. * 2 Molyban A (manufactured by Vanderbilt, trade name) is Mo-DTC (molybdenum dithiocarbamate). * 3 Sakura Lube 600 (made by Asahi Denka, trade name) is M
o-DTC. * 4 Sakura Lube 300 (made by Asahi Denka, trade name) is M
o-DTP (molybdenum dithiophosphate). * 5 Lubrizol 1395 (trade name, manufactured by Lubrizol) is Zn-DTP (zinc dithiophosphate). * 6 Anglamol 33 (trade name, manufactured by Lubrizol) is a sulfurized olefin. * 7 Irgarbe TPPT (trade name, manufactured by CIBA-GEIGY) is triphenyl phosphorothionate. ** The degree of occurrence of flaking is obtained by observing the state after the CVJ has been rotated 12.6 million times and the state after the CVJ has been rotated 25.2 million times and evaluated as follows. ◎ No flaking ○ Small flaking △ Medium flaking × Large flaking

【００２４】[0024]

【表１】 [Table 1]

【００２５】[0025]

【表２】 [Table 2]

【００２６】[0026]

【表３】 [Table 3]

【００２７】[0027]

【表４】 [Table 4]

【００２８】[0028]

【発明の効果】表１〜４に示す結果から明らかなよう
に、本発明の等速ジョイント用グリース組成物は、著し
い極圧性を有しており、従来グリースよりも有効なフレ
ーキング防止性を与える。その結果、等速ジョイントの
耐久性を向上できる。As is clear from the results shown in Tables 1 to 4, the grease composition for a constant velocity joint of the present invention has a remarkable extreme pressure property, and has a more effective anti-flaking property than the conventional grease. give. As a result, the durability of the constant velocity joint can be improved.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ１０Ｎ 30:06 30:08 40:04 50:10 (72)発明者 益森 隆一 東京都港区台場２丁目３番２号 昭和シェ ル石油株式会社内──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C10N 30:06 30:08 40:04 50:10 (72) Inventor Ryuichi Masmori 2-3-2 Daiba, Minato-ku, Tokyo Showa Shell Sekiyu KK

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 基油とウレア系増ちょう剤に対してチオ
硫酸ソーダ０．０５〜３０重量％を含有させたことを特
徴とする等速ジョイント用グリース組成物。1. A grease composition for a constant velocity joint, comprising 0.05 to 30% by weight of sodium thiosulfate with respect to a base oil and a urea thickener.
JP21417197A 1997-07-24 1997-07-24 Grease composition for constant velocity joints Expired - Fee Related JP3812995B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP21417197A JP3812995B2 (en) 1997-07-24 1997-07-24 Grease composition for constant velocity joints
EP98945164A EP0998544B1 (en) 1997-07-24 1998-07-23 Grease composition for a constant velocity joint
KR10-2000-7000688A KR100503108B1 (en) 1997-07-24 1998-07-23 Grease composition for a constant velocity joint
CN98806285A CN1097630C (en) 1997-07-24 1998-07-23 Grease composition for constant velocity joint
PCT/EP1998/004983 WO1999005240A1 (en) 1997-07-24 1998-07-23 Grease composition for a constant velocity joint
DE69816085T DE69816085T2 (en) 1997-07-24 1998-07-23 LUBRICATING GREASE COMPOSITION FOR HOMOKINETIC CLUTCH

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21417197A JP3812995B2 (en) 1997-07-24 1997-07-24 Grease composition for constant velocity joints

Publications (2)

Publication Number Publication Date
JPH1135965A true JPH1135965A (en) 1999-02-09
JP3812995B2 JP3812995B2 (en) 2006-08-23

Family

ID=16651419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21417197A Expired - Fee Related JP3812995B2 (en) 1997-07-24 1997-07-24 Grease composition for constant velocity joints

Country Status (6)

Country Link
EP (1) EP0998544B1 (en)
JP (1) JP3812995B2 (en)
KR (1) KR100503108B1 (en)
CN (1) CN1097630C (en)
DE (1) DE69816085T2 (en)
WO (1) WO1999005240A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002053889A (en) * 2000-08-10 2002-02-19 Showa Shell Sekiyu Kk Grease composition having improved corrosion resistance and improved wear resistance
JP2006182909A (en) * 2004-12-27 2006-07-13 Showa Shell Sekiyu Kk Urea-based lubricating grease composition, rolling bearing, and electrically powered steering apparatus
JP2011012280A (en) * 2010-10-18 2011-01-20 Showa Shell Sekiyu Kk Grease composition in which rust prevention and abrasion resistance are improved

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8153053B2 (en) 2002-11-21 2012-04-10 Diamet Corporation Method for forming compact from powder and sintered product

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505223A (en) * 1967-03-30 1970-04-07 Ethyl Corp Lubricant compositions
US4986923A (en) * 1989-06-27 1991-01-22 Amoco Corporation Front-wheel drive grease with synergistic sulfate and carbonate additive system
US4923625A (en) * 1989-09-28 1990-05-08 Desilube Technology, Inc. Lubricant compositions
US5354485A (en) * 1993-03-26 1994-10-11 The Lubrizol Corporation Lubricating compositions, greases, aqueous fluids containing organic ammonium thiosulfates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002053889A (en) * 2000-08-10 2002-02-19 Showa Shell Sekiyu Kk Grease composition having improved corrosion resistance and improved wear resistance
JP4634585B2 (en) * 2000-08-10 2011-02-16 昭和シェル石油株式会社 Grease composition with improved rust and wear resistance
JP2006182909A (en) * 2004-12-27 2006-07-13 Showa Shell Sekiyu Kk Urea-based lubricating grease composition, rolling bearing, and electrically powered steering apparatus
JP2011012280A (en) * 2010-10-18 2011-01-20 Showa Shell Sekiyu Kk Grease composition in which rust prevention and abrasion resistance are improved

Also Published As

Publication number Publication date
CN1260825A (en) 2000-07-19
KR20010022118A (en) 2001-03-15
DE69816085D1 (en) 2003-08-07
EP0998544B1 (en) 2003-07-02
WO1999005240A1 (en) 1999-02-04
EP0998544A1 (en) 2000-05-10
JP3812995B2 (en) 2006-08-23
DE69816085T2 (en) 2004-05-19
CN1097630C (en) 2003-01-01
KR100503108B1 (en) 2005-07-25

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