CN1191343C - 润滑剂 - Google Patents

润滑剂 Download PDF

Info

Publication number
CN1191343C
CN1191343C CNB008016631A CN00801663A CN1191343C CN 1191343 C CN1191343 C CN 1191343C CN B008016631 A CNB008016631 A CN B008016631A CN 00801663 A CN00801663 A CN 00801663A CN 1191343 C CN1191343 C CN 1191343C
Authority
CN
China
Prior art keywords
lubricant
particle
ball
macrobead
ball joint
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.)
Expired - Fee Related
Application number
CNB008016631A
Other languages
English (en)
Other versions
CN1327471A (zh
Inventor
W·施特尔
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.)
ZF Lemfoerder GmbH
Original Assignee
ZF Lemfoerder GmbH
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 ZF Lemfoerder GmbH filed Critical ZF Lemfoerder GmbH
Publication of CN1327471A publication Critical patent/CN1327471A/zh
Application granted granted Critical
Publication of CN1191343C publication Critical patent/CN1191343C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/06—Particles of special shape or size
    • 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
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/02—Polyethene
    • 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
    • C10M147/00—Lubricating compositions characterised by the additive being a macromolecular compound containing halogen
    • C10M147/02—Monomer containing carbon, hydrogen and halogen only
    • 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
    • C10M149/00—Lubricating compositions characterised by the additive being a macromolecular compound containing nitrogen
    • C10M149/12—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M149/14—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds a condensation reaction being involved
    • C10M149/18—Polyamides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/14—Synthetic waxes, e.g. polythene waxes
    • 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
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/06—Perfluorinated compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/02—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen and halogen only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • 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
    • 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
    • C10M2217/044—Polyamides
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

本发明涉及一种万向球接头用的润滑剂，其中在油或润滑剂中掺合两种不同粒度的球状颗粒。大颗粒起距离保持物(间隔物)的作用，该间隔物防止万向球接头的球的在万向球接头静止时坐落在球形推力轴承上。小颗粒防止大颗粒的集聚，它们维持大颗粒相互之间的距离，从而亦分布在万向球接头之中。

Description

润滑剂
本发明涉及带颗粒的润滑剂，特别是一种液体润滑剂如油或润滑脂。
润滑剂特别适用于万向球接头，例如用于汽车的转向杆系统，润滑剂同样可用于通常的轴承类和其它润滑目的。
JP-A63-172795，US 48 88 122或DE 198 39 296A1报导了几种润滑剂，这些润滑剂具有两种不同粒度的颗粒。而且颗粒尺寸差别可在1∶100或更大的范围内。上述第一篇文献中的润滑剂针对高温下良好的耐热性和润滑性以及较高的应力。上述第二篇文献中的润滑剂针对用颗粒涂复内燃发动机的多孔轴承面，以便使表面平滑。第三篇文献针对汽车座的活节配件在特别是自制动传动时的振动抑制。已知的润滑剂不是为万向球接头专用的，而且不能解决下述的在万向球接头上出现的问题。
如果要使静止的万向球接头运动(转动)，则应施加一种始动转矩，即增大的转矩，使万向球接头的球形推力轴承相对于万向球接头的球产生运动。一旦球形推力轴承相对于球运动，转矩减小，而且通常突变式地减小到始动转矩的一半以下。万向球接头从静止开始转动将伴随一个冲击，这种冲击在各个情况下都能感觉到，有时能听到喀嚓声。万向球接头从静止开始转动时的冲击和始动转矩可这样解释，即静止的万向球接头的球将油脂或其它润滑剂从万向球接头的位置排挤出去，在移动万向球接头时在这个位置处润滑剂的厚度减小到润滑剂厚度的一小部分，在极端情况下，润滑剂的厚度达零。润滑剂膜厚度的减小与时间有关，随着润滑剂膜的减小，万向球接头的摩擦增大到例如3-4倍。为使万向球接头开始转动须克服这种高摩擦。如果球在球形推力轴承中运动时，润滑剂分布在球的表面，从而万向球接头的摩擦减小。
为了制造万向球接头，要先将球形推力轴承用逐件并光滑安放在空心半球上的空心圆柱边缘制成半球形，以便能将球嵌入球形推力轴承。球嵌入球形推力轴承之后，空心圆柱边缘向内变形，这样球形推力轴承将球包围在大于半球的面上，并通过后啮合使其成形闭合。大多数情况下在球形推力轴承中嵌入减少摩擦的由塑料，例如由聚醋酸酯(POM)制的轴瓦。在将球嵌入球形推力轴承之前将润滑剂，大多情况下将润滑脂涂在球上和/或球形推力轴承中或者轴瓦中。在将球嵌入球形推力轴承并向内使球形推力轴承的空心圆柱边缘变形以包围球之后将万向球接头加温。其目的在于使轴瓦与球的形状相匹配。万向球接头的可转动性所要求的在球和球形推力轴承之间的间隙通过球形推力轴承的空心圆柱边缘向内部变形之后重新用键固定来调节。
这里出现的问题是要在变形的过程中调节球和球形推力轴承之间的间隙。球和球形推力轴承之间的间隙的这种自动调节当然是不准确的，从而对万向球接头的参数有负面影响。
本发明的目的在于，提出一种润滑剂，该润滑剂在制造万向球接头的过程中能准确调节球和球形推力轴承之间的间隙。
这个目的是通过本发明的特征达到的。
本发明的润滑剂的颗粒在润滑剂中的溶解温度低于小颗粒的溶解温度。溶解温度系指颗粒在润滑剂中以任一种方式开始溶解的温度。这时是否润滑剂中的该颗粒开始溶解或者颗粒实际上发生了什么还存在疑问，但无论如何在显微镜下观察润滑剂会发现颗粒消失，实质在于，在润滑剂冷却到溶解温度以下之后颗粒不再出现。在将润滑剂加热或有时保持在大颗粒溶解温度之后，并接着进行冷却，大颗粒不再以大颗粒形态存在。以这种方式通过加热使本发明的润滑剂的温度高于大颗粒的溶解温度，但并不达到小颗粒的溶解温度，并将润滑剂保持在这个温度，就能使大颗粒溶解。本发明的润滑剂有一下述优点在万向球接头的制造过程中，在该另外的半球形球形推力轴承的空心圆柱边缘变形以包围万向球接头的在球形力轴承中嵌入的球时，本发明的润滑剂中的大颗粒使球形推力轴承与球保持一定距离。通过对大颗粒直径的选择可以很准确地调节球形推力轴承变形后球形推力轴承和球之间存在的间隙。接着将万向球接头加热至大颗粒的溶解温度并短暂保持这个温度，从而使大颗粒溶解，而较高溶解温度的小颗粒则仍然保留。由于大颗粒在润滑剂冷却之后不重新形成，在润滑剂中只保留小颗粒并形成距离元件(间隔物)，它在万向球接头静止状态时维持球和球形推力轴承之间的距离(间隙)，防止球坐落在球形推力轴承上，从而消除了万向球接头的始动转矩。
大颗粒和轴瓦宜这样选择，其溶解温度和软化温度同样高，并低于小颗粒的溶解温度。在聚醋酸酯(POM)作轴瓦材料的情况下，该材料在大约100℃时软化，并在大约120℃开始熔化，这时本发明润滑剂的大颗粒的溶解温度选择为80-100℃，小颗粒的溶解温度选择为120℃或更高。制造润滑剂的大颗粒例如可用聚乙烯，小颗粒可用溶解温度较高的聚酰胺。
润滑剂本身例如是油或润滑脂，颗粒可通过搅合在其中均匀分布。颗粒的形状宜为圆形，优选球形。至于颗粒尺寸，颗粒宜呈以能掺入润滑剂的粉末存在。大颗粒形成距离间隔保持物(间隔物)，只要它不在润滑剂中溶解，它都能保证球与球形推力轴承之间的距离，或者一般说来保证在其间有润滑剂存在的两个物体之间的距离。小颗粒存在于大颗粒之间并使大颗粒相互之间保持距离。在颗粒之间的空间存在着润滑剂。小颗粒防止大颗粒集聚以及大颗粒在万向球接头的球和球形推力轴承之间的间隙中的一个或几个部位堆积。通过这种方式小颗粒保持大颗粒在万向球接头的间隙中分布。这就在各个部位都保证有一个相应于大颗粒的直径的最小间隙厚度，它对摩擦产生影响，使万向球接头开始转动时的摩擦不高于或只稍高于其转动时的摩擦。万向球接头在开始转动时的摩擦增高至转动的万向球接头摩擦的很多倍的问题在其长时间停止之后也可得到避免。也可避免猛然启动或发出喀嚓的噪声。本发明采用的只具有两种不同粒度的润滑剂颗粒，但润滑剂中如存在另一些粒度的颗粒也不会有所防碍。本发明不应排除这种情况。作为颗粒可采用固体润滑剂颗粒、塑料如聚酰胺(PA)、聚乙烯(PE)、聚四氟乙烯(PTFE)等聚合物。这时颗粒宜具球状。
本发明润滑剂的颗粒间尺寸差别可为1∶100或更大，而且尺寸差别系指直径的差别或者颗粒的其它特征尺寸的差别。本发明的构思中，不同大小的颗粒具有不同的(表观)表面张力。由此表面张力小颗粒在一定程度上浸润表面张力大的颗粒。
较小的颗粒宜具有比大颗粒小的表面张力，这样小颗粒由于其较小的表面张力在一定程度上浸润大颗粒。它们粘附分布在具有较大的表面张力的大颗粒上，这意味着大颗粒被小颗粒覆盖。
表面张力的改变可籍助添加剂(摩擦改性剂或催化剂)实现。
因此，按照本发明可防止集聚，即特别是大颗粒的堆积，并特别使形成距离元件(间隔物)的大颗粒达到预期的分布。小颗粒和大颗粒的表面张力的差别将这样选择，即发生预期的小颗粒在大颗粒表面上分布，不发生预想的集聚。由于可设想在反过来的表面张力关系情况下有相应的效应，所以不应排除这样一种情况，即大颗粒的表面张力小于小颗粒的表面张力。在润滑剂中应存在不同大小颗粒的表面张力差别，但这与这种表面张力在无润滑剂存在下是否仍然起作用无关。
本发明润滑一个例子是一种润滑脂，其中掺入由聚乙烯和聚四氟乙烯制成的球状颗粒，而且聚乙烯颗粒的直径大约是聚四氟乙烯颗粒的约100倍。在掺合到润滑油脂中之前颗粒呈粉末状。由于聚乙烯的大(表观)表面张力和聚四氟乙烯的小(表观)表面张力，聚四氟乙烯小颗粒粘附分布在约100倍大的聚乙烯大颗粒表面上，从而防止聚乙烯大颗粒的集聚。

Claims (6)

1.一种润滑剂，其具有两种不同粒度的颗粒，其中颗粒的尺寸差别为1∶100或更大，其特征在于，在润滑剂中，大颗粒的溶解温度低于小颗粒的溶解温度，并且所述颗粒为聚乙烯、聚酰胺和/或聚四氟乙烯。
2.权利要求1的润滑剂，其特征在于，在润滑剂中，大颗粒的溶解温度为80-100℃，小颗粒的溶解温度为120℃或更高。
3.权利要求1的润滑剂，其特征在于，所述颗粒为圆形。
4.权利要求1-3任一项的润滑剂，其特征在于，不同大小的颗粒具有不同的表面张力。
5.权利要求4的润滑剂，其特征在于，大颗粒比小颗粒有较大的表面张力。
6.权利要求4的润滑剂，其特征在于，籍助摩擦改性剂实现表面张力的改变。
CNB008016631A 1999-08-10 2000-08-10 润滑剂 Expired - Fee Related CN1191343C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19937657.3 1999-08-10
DE19937657A DE19937657C2 (de) 1999-08-10 1999-08-10 Schmierstoff

Publications (2)

Publication Number Publication Date
CN1327471A CN1327471A (zh) 2001-12-19
CN1191343C true CN1191343C (zh) 2005-03-02

Family

ID=7917800

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008016631A Expired - Fee Related CN1191343C (zh) 1999-08-10 2000-08-10 润滑剂

Country Status (9)

Country Link
US (1) US6413915B1 (zh)
EP (1) EP1144556A3 (zh)
JP (1) JP2003506559A (zh)
KR (1) KR20010088819A (zh)
CN (1) CN1191343C (zh)
BR (1) BR0006994A (zh)
DE (1) DE19937657C2 (zh)
WO (1) WO2001010985A2 (zh)
ZA (1) ZA200102271B (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013082A (ja) * 2001-07-02 2003-01-15 Hoshizaki Electric Co Ltd 潤滑用グリースの改質剤
US7403890B2 (en) 2002-05-13 2008-07-22 Roushar Joseph C Multi-dimensional method and apparatus for automated language interpretation
US8178612B2 (en) * 2004-01-22 2012-05-15 E. I. Du Pont De Nemours And Company Fluoropolymer emulsion coatings
US20070166096A1 (en) * 2005-06-03 2007-07-19 Lim Chong K Joint assembly
DE102006036684A1 (de) * 2006-08-05 2008-02-07 Zf Friedrichshafen Ag Getriebe
US20110072944A1 (en) * 2009-09-29 2011-03-31 Jeffrey Eggers Flexible linked cutting system
DE102013221964B3 (de) * 2013-10-29 2015-03-12 Zf Friedrichshafen Ag Verfahren und Vorrichtung zur Herstellung eines Kugelgelenks
US10138685B1 (en) 2015-12-18 2018-11-27 Jeffrey Eggers Drilling system with teeth driven in opposite directions
US11242498B2 (en) 2018-11-07 2022-02-08 Equistar Chemicals, Lp Polyolefin compositions for grease and lubricant applications
CN111548843B (zh) * 2020-05-09 2022-08-23 中国石油化工股份有限公司 一种商用车转向球头润滑脂及其应用

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204968A (en) 1978-08-11 1980-05-27 CLM International Corp. Lubricant additive
US4834894A (en) 1980-12-29 1989-05-30 Tribophysics Corporation PTFE oil additive
US5160646A (en) * 1980-12-29 1992-11-03 Tribophysics Corporation PTFE oil coating composition
US4486319A (en) * 1982-09-27 1984-12-04 Armco, Inc. Microporous ionomer polymer lubricating composition
US4888122A (en) * 1986-11-24 1989-12-19 Mccready David F Engine oil additive dry lubricant powder
JPS63172795A (ja) 1987-01-09 1988-07-16 Amuni Kk 潤滑剤
JP2611400B2 (ja) * 1988-12-12 1997-05-21 ダイキン工業株式会社 含フッ素重合体水性分散体および含フッ素重合体オルガノゾル組成物
JPH05329683A (ja) * 1991-12-03 1993-12-14 Kobe Steel Ltd ワイヤ送給及び伸線用潤滑剤
DE69327377T2 (de) * 1992-09-25 2000-06-08 Oiles Industry Co Ltd Mehrschichtiger Gleitteil
US5670461A (en) * 1994-08-19 1997-09-23 Gkn Automotive Ag High temperature lubricating grease containing urea compounds
US5565417A (en) * 1995-06-26 1996-10-15 Salvia; Vincent F. Hybrid series transition metal polymer composite sets
US5744539A (en) * 1995-07-28 1998-04-28 Mccoy; Frederic C. Manufacturing procedures for making high polytetrafluoroethylene content dispersions in oil for lubricant use and the compositions so produced
JP3811529B2 (ja) * 1996-04-25 2006-08-23 株式会社ジェイテクト 転がり摺動部品
US6017857A (en) * 1997-01-31 2000-01-25 Elisha Technologies Co Llc Corrosion resistant lubricants, greases, and gels
US5863875A (en) * 1998-06-24 1999-01-26 The Lubrizol Corporation Coating additive, coating composition containing said additive and method for coating a substrate using said coating composition
DE19839296C2 (de) * 1998-08-28 2003-07-03 Keiper Gmbh & Co Kg Schmierstoff zur Dämpfung von Ratterschwingungen

Also Published As

Publication number Publication date
DE19937657C2 (de) 2001-08-02
JP2003506559A (ja) 2003-02-18
EP1144556A2 (de) 2001-10-17
DE19937657A1 (de) 2001-03-15
BR0006994A (pt) 2001-06-26
KR20010088819A (ko) 2001-09-28
US6413915B1 (en) 2002-07-02
WO2001010985A3 (de) 2001-05-17
ZA200102271B (en) 2001-11-09
CN1327471A (zh) 2001-12-19
WO2001010985A2 (de) 2001-02-15
EP1144556A3 (de) 2001-11-07

Similar Documents

Publication Publication Date Title
CN1191343C (zh) 润滑剂
US20130296206A1 (en) Lubricant thickened with oleophilic fibers
CA2223286C (en) Lubricant compositions and methods
JP6741730B2 (ja) 焼結軸受およびその製造方法
CN110325750B (zh) 用于支承座的滑动轴承、滑动体制造方法及滑动轴承制造方法
US20080106041A1 (en) Seal Structure of Rotation Member
JP3365449B2 (ja) 転がり軸受
EP0631060B1 (en) A sheet metal bearing for an electric motor
JP2001173658A (ja) 合成樹脂製スラスト軸受
WO2015050200A1 (ja) 焼結軸受、およびその製造方法
JPH11335657A (ja) ボールねじの含油シール装置
JP3857567B2 (ja) 車両用軸受装置の製造方法
CN110475982A (zh) 烧结轴承及其制造方法
JP2020204337A (ja) 焼結含油軸受
WO2021070712A1 (ja) 焼結含油軸受
JPH10325416A (ja) 動圧型多孔質含油軸受及び軸受装置
JPH07253113A (ja) 円筒ころ軸受
JP4078505B2 (ja) ポリマ潤滑剤封入転がり軸受およびその製造方法
CN109890539A (zh) 烧结轴承及其制造方法
JPH06341444A (ja) 固体潤滑被膜およびその形成方法
JP4064024B2 (ja) 転がり軸受
JP4059092B2 (ja) 転がり軸受の製造方法
GB2248238A (en) Bearing materials
JPH0610626U (ja) ターンテーブル用軸受
JP2018109445A (ja) 焼結軸受

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee