WO2006112502A1 - グリース組成物、グリース封入軸受、および、一方向クラッチ内蔵型回転伝達装置 - Google Patents
グリース組成物、グリース封入軸受、および、一方向クラッチ内蔵型回転伝達装置 Download PDFInfo
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- WO2006112502A1 WO2006112502A1 PCT/JP2006/308314 JP2006308314W WO2006112502A1 WO 2006112502 A1 WO2006112502 A1 WO 2006112502A1 JP 2006308314 W JP2006308314 W JP 2006308314W WO 2006112502 A1 WO2006112502 A1 WO 2006112502A1
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- WIPO (PCT)
- Prior art keywords
- grease
- bismuth
- grease composition
- bearing
- oil
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6633—Grease properties or compositions, e.g. rheological properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/05—Metals; Alloys
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/0406—Ethers; Acetals; Ortho-esters; Ortho-carbonates used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
- C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/16—Naphthenic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/10—Groups 5 or 15
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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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
- C10N2040/02—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
Definitions
- Grease composition grease-filled bearing, and one-way clutch built-in rotation transmission device
- the present invention relates to a grease composition that can effectively prevent peeling on a rolling surface mainly due to hydrogen embrittlement, and a grease-filled bearing in which the grease composition is sealed.
- automotive electrical equipment such as fan coupling devices, alternators, idler pulleys, electromagnetic clutches for car air conditioners, electric fan motors, etc.
- rolling bearings for auxiliary machinery dolly sealed bearings for motors for industrial machinery and electrical equipment, in fuel cell systems Used in rolling bearings for fuel cell systems used in pumping machines for pumping various fluids, working parts of industrial robots, etc.
- the present invention relates to grease-enclosed bearings such as rolling bearings for robots, wheel bearings, and rolling bearings for wheel support devices used in wheel support devices for instructing wheels to rotate freely with respect to automobile suspension systems.
- the present invention also relates to a one-way clutch built-in rotation transmission device in which the above grease composition is enclosed in a sliding portion.
- a fan coupling device for automobiles is connected to a rotor directly connected to an engine via a bearing, with a nose fluid in which a viscous fluid is sealed inside and a fan for blowing air is attached to an outer peripheral surface, and is connected to an ambient temperature.
- the engine By controlling the amount of drive torque transmitted and the rotation speed of the fan, this is a device that performs optimal ventilation according to engine temperature.
- the rolling bearings for fan coupling devices rotate at high temperatures of 180 ° C or higher during high-speed operation in summer, in addition to rotational irregularities in which the rotational speed varies from 1000 rpm to 10000 rpm as the engine temperature varies. Heat resistance, grease sealability, and durability that can withstand extremely harsh environments such as high-speed rotation of several 10000 rpm or more are required.
- An alternator for automobiles has a function of generating power by receiving rotation of an engine with a belt, supplying electric power to an electric load of a vehicle, and charging a knottery.
- rolling bearings for alternators are required to have heat resistance, grease sealability, and durability that can withstand extremely harsh environments such as high-speed rotations of 10,000 rpm or higher at high temperatures of 180 ° C or higher.
- the present applicant uses grease containing a urea compound as a rolling bearing for a fan coupling device and a rolling bearing for an alternator, and contacts at least the grease with a seal member for sealing the grease.
- Crosslinking monomer comprising a rubber molded body, the rubber molded body comprising tetrafluoroethylene, propylene, and an unsaturated hydrocarbon having 2 to 4 carbon atoms in which some of the hydrogen atoms are substituted with fluorine atoms
- An application is filed for a rolling bearing using a molded body of a vulcanizable fluororubber composition having a copolymer power including (see Patent Document 2, etc.).
- An idler pulley for an automobile is used as a belt tensioner for a drive belt that transmits the rotation of an engine to an auxiliary machine of the automobile, and the tensioner is attached to a belt when the distance between the shafts is fixed.
- idler pulley rolling bearings are capable of withstanding extremely harsh environments with high-speed rotation of over 10,000 rpm at high temperatures of 180 ° C or higher, grease sealability, Durability is required.
- a grease composition suitable for rolling bearings used at high temperatures and high speeds 0.5 to 10% by weight of an amide wax having a melting point of 80 ° C or higher, which has an antioxidant property against base oil, is blended in the grease composition,
- a base oil having a kinematic viscosity at 40 ° C of 20 to 150 mm 2 / sec is used, and the thickener of grease yarn and composition is urea thickener.
- a grease composition containing 30% by weight is known (see Patent Document 3).
- This specific exfoliation unlike the exfoliation from the inside of the rolling contact surface caused by normal metal fatigue, is a fracture phenomenon that occurs at a relatively shallow surface of the rolling contact surface and is considered to be hydrogen embrittlement caused by hydrogen.
- a fuel cell operates at a low temperature with a high output density, and a solid polymer electrolyte fuel cell that is easy to start up with little deterioration of battery constituent materials is considered to be effective as a power source for transportation vehicles such as automobiles.
- the hydrogen of the fuel reacts with air as an oxidant by a chemical reaction for power generation, and water is generated, or the polymer membrane is used as a solid electrolyte.
- it is humidified by a humidifier and is always kept in a state containing moisture, so that the gas pumped by the pressure feeder contains moisture.
- a humidifier When this moisture enters the bearings of various pumping machines, metal contact occurs due to poor lubrication, and, like the rolling bearings for automobile electrical equipment and auxiliary equipment, etc., early peeling with white structure change due to hydrogen embrittlement. May occur.
- the above-described fan coupling device which is an electrical accessory for automobiles, an alternator, and the like efficiently uses the rotational torque of the engine via a one-way clutch that is connected only when the engine is in a predetermined output state. Used to do.
- the one-way clutch built-in type rotation transmission device installed in the electrical accessories for automobiles is frequently attached and detached from the engine output shaft, and the rotation speed when connected to the engine output shaft is high, so load load and generation Heat
- the use conditions are becoming stricter as the performance and output of automobiles increase due to increased vibration and other factors.
- Automotive electrical accessories equipped with a one-way clutch built-in rotation transmission device are often installed in the lower part of the engine room. It's easy to do. If such rainwater enters the space where the balls of each rolling bearing are installed, the rolling surfaces of these balls and the rolling surfaces of the inner and outer rings are likely to corrode. For this reason, it is necessary to use a grease that has better anti-glare performance than grease used in other locations as the grease to be sealed in the space where each ball is installed.
- the viscosity-pressure coefficient is a predetermined value or more.
- Some use grease see Patent Document 7 or use grease based on synthetic oil with a kinematic viscosity at 40 ° C of 60 mmVsec or less (see Patent Document 8).
- Patent Document 6 the one using ether oil as the base oil has a problem that the low friction wear characteristic in the overrun state of the unidirectional clutch is insufficient.
- Patent Document 7 a viscosity pressure coefficient of a predetermined value or more is effective for reliably realizing a locked state, but there is a problem that wear in an overrun state cannot be sufficiently suppressed.
- Patent Document 8 when a synthetic oil having a low kinematic viscosity is used as the grease base oil, heat resistance is generally insufficient, and long-term use becomes difficult. There is a title.
- a wheel support device for supporting a non-drive wheel such as a front wheel in a rear wheel drive type vehicle
- two rolling bearings are mounted on an axle (knuckle spindle) provided on a steering knuckle.
- Axle-no which is rotatably supported by a rolling bearing, is provided with a flange on the outer diameter surface of the hub, a stud bolt provided on the flange, and a nut engaged with the screw and a brake drum of a brake device and a wheel disc of a wheel.
- a back plate is attached to a flange provided on the steering knuckle, and the back plate supports a braking mechanism that applies a braking force to the brake drum.
- a tapered roller bearing having a large load capacity and high rigidity is used as a rolling bearing that rotatably supports an axle nove.
- This tapered roller bearing is lubricated by grease filled between the axle and the axle hub.
- bearings used in wheel support devices are subject to severe operating conditions such as high speed and high load, and in particular, since the bearing ring collar slides on the large end face of the roller and the collar, the lubricating oil film of the lubricating grease breaks. It becomes easy to do. When the lubricating oil film breaks, metal contact occurs, which causes a problem of increased heat generation and frictional wear. Therefore, it is necessary to improve lubricity and load resistance under high speed and high load, and to prevent metal contact due to breakage of the lubricating oil film, and the use of extreme pressure agent-containing grease reduces the problems. .
- an organometallic compound containing a metal selected from nickel, tellurium, selenium, copper, and iron is used for the total amount of grease.
- roller bearing operating conditions become severe, such as lubrication under high-speed conditions with a dN value of 100,000 or more
- problems such as the difficulty of using roller bearings with conventional grease.
- rolling friction occurs between the rolling surfaces of the inner and outer rings and “rollers” as rolling elements, and sliding friction occurs between the collar portion and “rollers”. Since sliding friction is larger than rolling friction, seizure of the brim portion tends to occur when the usage conditions are severe. For this reason, grease replacement work, etc. is frequent and maintenance-free is achieved. I can't do that!
- bearings lubricated with gear oil or hydraulic fluid are generally used for hydraulic motors, hydraulic pumps, and axle planets.
- gear oil or hydraulic fluid are generally used for hydraulic motors, hydraulic pumps, and axle planets.
- mineral oil or water-glycol hydraulic oil is generally used for these oils.
- Hydrogen that causes this separation is generated by the decomposition of the lubricating oil.
- the generation of hydrogen from lubricating oil can be attributed to two causes: (1) decomposition due to heat and shear, and (2) decomposition reaction using a new metal surface generated by wear as a catalyst.
- the hydrogen generated in this way easily penetrates into the bearing steel and causes exfoliation due to hydrogen embrittlement.
- the effect of (1) or (2) above on hydrogen generation is considered to be due to the bearing operating conditions.
- (2) is the main cause, the exposure time of the new metal surface generated by wear
- an additive that shortens the length of the formed metal nascent surface, that is, can immediately inactivate the formed metal is desirable.
- a method of adding metal nitrite see Patent Document 10
- a method of adding molybdate see Patent Document 11 and Patent Document 12
- Patent Document 1 Japanese Patent Laid-Open No. 2001-65578
- Patent Document 2 Japanese Patent Laid-Open No. 2005-256891
- Patent Document 3 Japanese Patent Laid-Open No. 2003-105366
- Patent Document 4 JP-A-3-210394
- Patent Document 5 Japanese Patent Laid-Open No. 2005-42102
- Patent Document 6 Japanese Patent Laid-Open No. 11 82688
- Patent Document 7 Japanese Unexamined Patent Publication No. 2000-234638
- Patent Document 8 Japanese Unexamined Patent Publication No. 2000-253620
- Patent Document 9 Japanese Patent Laid-Open No. 10-17884
- Patent Document 10 Japanese Patent Application Laid-Open No. 2005-29623
- Patent Document 11 Japanese Patent Laid-Open No. 2005-29622
- Patent Document 12 Japanese Unexamined Patent Application Publication No. 2005-112901
- the present invention has been made to address such problems, and a grease composition that can effectively prevent peeling on a rolling surface mainly due to hydrogen embrittlement, and the grease composition. It is an object of the present invention to provide a sealed grease-sealed bearing and a rotation transmission device with a built-in one-way clutch in which the grease composition is sealed in a sliding portion.
- the grease composition of the present invention is a grease yarn composition obtained by blending an additive with a base grease comprising a base oil and a thickener, and the additive is a bismuth-based additive. Or containing a magnesium-based additive.
- the grease composition is characterized by preventing hydrogen embrittlement delamination on a frictional wear surface of a sliding portion or a new ferrous metal surface exposed by wear.
- the grease composition is characterized in that a film containing a bismuth compound or a magnesium compound is formed together with iron oxide on a friction wear surface of a sliding portion or a new surface of an iron-based metal exposed by wear.
- the mixing ratio of the bismuth-based additive is 0.
- the bismuth-based additive is at least one selected from inorganic bismuth and an organic bismuth mask that does not contain a sulfur component.
- the inorganic bismuth is at least one selected from bismuth powder, bismuth trioxide, bismuth carbonate, and sodium bismuthate.
- the bismuth powder has an average particle size of 10 to 200 / ⁇ ⁇ .
- the organic bismuth is bismuth organic acid.
- the organic acid bismuth is at least one selected from bismuth 2-ethylhexylate and bismuth naphthenate.
- the mixing ratio of the magnesium-based additive is 0.05 to 10 parts by weight with respect to 100 parts by weight of the base grease.
- the magnesium-based additive is at least one selected from inorganic magnesium and organic magnesium.
- the inorganic magnesium is a magnesium powder.
- the organic magnesium is magnesium stearate.
- the thickening agent is a urea thickening agent or a lithium soap thickening agent.
- the base oil is characterized in that it is at least one oil selected from alkyl diphenyl ether oil, poly-a-olefin oil, mineral oil, ester oil and ether oil.
- the base oil has a kinematic viscosity at 40 ° C of 30 to 200 mmVsec.
- the grease-filled bearing is a rolling bearing for automobile electrical equipment / auxiliary machinery that rotatably supports a rotating shaft that is rotationally driven by engine output to a stationary member, and the rolling bearing includes an inner ring and an outer ring, A plurality of rolling elements interposed between the inner ring and the outer ring, and seal members for sealing the grease composition of the present invention around the rolling elements are provided at both axial openings of the inner ring and the outer ring. It is characterized by that.
- the grease-filled bearing is a rolling bearing for a fuel cell system that is provided in a pumping device for pumping a fluid used in a fuel cell system and rotatably supports a rotating part
- the rolling bearing Comprises an inner ring and an outer ring and a plurality of rolling elements interposed between the inner ring and the outer ring, and a seal member for sealing the grease composition of the present invention around the rolling elements is provided on the shafts of the inner ring and the outer ring. It is characterized in that it is provided at the openings at both ends in the direction.
- the grease-enclosed bearing is a grease-enclosed bearing for a motor that supports a rotor of the motor, and the grease-enclosed bearing includes an inner ring and an outer ring, and a plurality of rolling elements interposed between the inner ring and the outer ring. And a seal member for sealing the grease composition of the present invention around the rolling elements is provided at both axial openings of the inner ring and the outer ring.
- the grease-filled bearing is a rolling bearing for a robot that rotatably supports a rotating part of an industrial robot.
- the rolling bearing includes an inner ring and an outer ring, and a plurality of intermediate rings interposed between the inner ring and the outer ring.
- a rolling member, and a seal member for sealing the grease composition of the present invention around the rolling member is provided at both axial end openings of the inner ring and the outer ring.
- the grease-enclosed bearing is a rolling bearing for a wheel support device having a thrust sliding surface, and a rotating member that rotates together with the wheel is rotated by the grease-enclosed rolling bearing mounted on the outer diameter surface of the axle. It is used for a wheel support device that supports it freely.
- An inner diameter side rotating member a cylindrical outer diameter side rotating member disposed concentrically with the inner diameter side rotating member, an outer diameter surface of the inner diameter side rotating member, and an inner diameter surface of the outer diameter side rotating member
- the outer diameter surface of the inner diameter side rotating member is connected to the inner diameter surface of the outer diameter side rotating member only when the outer diameter side rotating member is disposed at a higher speed than the inner diameter side rotating member.
- the one-way clutch and the one-way clutch are disposed so as to be sandwiched on both sides with respect to the axial direction, and both the rotating parts are supported while supporting the radial load applied between the inner-diameter-side rotating member and the outer-diameter-side rotating member.
- a rotation transmission device with a built-in one-way clutch comprising a rolling bearing that allows relative rotation between materials, wherein the inner space of the clutch in which a plurality of rollers constituting the one-way clutch are installed; An empty space provided with a plurality of rolling elements constituting the rolling bearing.
- the grease composition of the present invention is characterized by comprising sealed in the inner.
- the grease yarn composition according to the present invention contains a bismuth-based additive or a magnesium-based additive in a base grease that also has a base oil, a thickening agent, and a power. It is possible to suppress the occurrence of peculiar delamination accompanied by white yarn and weaving change due to hydrogen embrittlement on the surface.
- the rolling bearing for a wheel support device in which the grease composition of the present invention is encapsulated is supplied with bismuth powder or the like on the sliding interface, thereby maintaining the extreme pressure effect for a long time in addition to preventing the hydrogen embrittlement separation. be able to. Therefore, it can be suitably used for a wheel support device that requires long-term durability as well as wear resistance.
- the one-way clutch built-in type rotation transmission device in which the grease composition of the present invention is enclosed in addition to the prevention of hydrogen brittle separation, on the rolling surface of the roller of the one-way clutch and the rolling surface of the inner and outer rings of the rolling bearing. Peeling can prevent fretting wear and maintain the wear resistance and durability of the one-way clutch built-in rotation transmission device for a long period of time.
- each additive decomposes and reacts on the frictional wear surface or the new metal surface exposed by wear, and on the bearing rolling surface, along with iron oxide, bismuth compound or magnesium compound As a result of surface analysis of the rolling contact surface of the bearing, it was found that a film containing iron was formed.
- the coating containing acid pig iron and each compound formed on the bearing rolling surface suppresses the generation of hydrogen due to the decomposition of the grease composition and the penetration of hydrogen into the bearing steel. It is considered that the life of the bearing is extended because peeling can be prevented. This invention is based on these findings.
- the bismuth-based additive added to the grease composition of the present invention is at least one selected from inorganic bismuth and organic bismuth without a sulfur component.
- inorganic bismuth examples include bismuth powder, bismuth carbonate, bischloride. Trout, bismuth nitrate and hydrates thereof, bismuth sulfate, bismuth fluoride, bismuth bromide, bismuth iodide, bismuth oxyfluoride, bismuth oxychloride, bismuth oxybromide, bismuth oxide, bismuth oxide and hydrates thereof, Examples include bismuth hydroxide, bismuth selenide, bismuth telluride, bismuth phosphate, bismuth oxyperchlorate, bismuth oxysulfate, sodium bismuthate, bismuth titanate, bismuth dinoleconate, and bismuth molybdate.
- bismuth powder, bismuth trioxide and bismuth carbonate which are excellent in heat resistance and hardly decompose by heat, and thus have a high extreme pressure effect.
- These inorganic bismuths may be added to grease by mixing one or two types.
- Bismuth is a silver-white metal having the lowest thermal conductivity among all metals except mercury, a specific gravity of 9.8, and a melting point of 271.3 ° C.
- Bismuth powder is a relatively soft metal and tends to form a film when subjected to extreme pressure. Therefore, the particle size of the powder may be any particle size that can be dispersed in the grease.
- the average particle diameter of the bismuth powder used in the grease composition enclosed in the rolling bearing for a wheel support device is preferably 10 to 200 m. If it is less than 10 m, it will cause a safety problem, and if it exceeds 200 m, it may cause acoustic defects.
- the bismuth powder used in the dully composition enclosed in the one-way clutch built-in rotation transmission device is preferably 5 to 500 ⁇ m.
- organic bismuth examples include bismuth organic acid and bismuth organic acid, and those that do not contain a sulfur component in the composition can be used. If it contains sulfur, corrosion proceeds and hydrogen penetration into the steel is accelerated, which is undesirable.
- organic acid bismuth having excellent lubricity is preferred.
- any deviation can be used as long as it is an aromatic organic acid, an aliphatic organic acid, or an alicyclic organic acid.
- organic acids include formic acid, acetic acid, propionic acid, butyric acid, valeric acid, proproic acid, heptanoic acid, 2-ethylhexylic acid, strong prillic acid, pelargonic acid, and powerful puric acid.
- 2-ethylhexylic acid and naphthenic acid which are excellent in lubricity and heat resistance, are preferably used. These can be used alone or as a mixture.
- the blending ratio of the inorganic bismuth and at least one bismuth-based additive that does not contain a sulfur component and / or organic bismuth is 0.01 to 15 parts by weight with respect to 100 parts by weight of the base grease. It is preferable. That is, (1) When the bismuth-based additive is only inorganic bismuth, 0.01 to 15 parts by weight of inorganic bismuth with respect to 100 parts by weight of the base grease, and (2) When the bismuth-based additive is only organic bismuth, 0.01 to 15 parts by weight of organic bismuth with respect to 100 parts by weight of grease. (3) When the bismuth-based additive is inorganic bismuth and organic bismuth, inorganic bismuth and organic bismuth with respect to 100 parts by weight of base grease. It is preferable to blend 0.01 to 15 parts by weight.
- the compounding power of the bismuth-based additive is less than 0.01 parts by weight, peeling on the rolling surface due to hydrogen embrittlement may not be effectively prevented. If the amount exceeds 15 parts by weight, abnormal wear or the like may occur. Also, in applications such as a wheel support device and a one-way clutch built-in rotation transmission device, etc., if the blending amount exceeds 15 parts by weight, the torque during rotation increases, heat generation may increase, and rotation failure may occur. is there.
- the blending ratio of the bismuth-based additive is more preferably 0.05 to 10 parts by weight with respect to 100 parts by weight of the base grease.
- the magnesium-based additive to be added to the grease composition of the present invention is at least one selected from inorganic magnesium and organic magnesium strength.
- Examples of inorganic magnesium that can be used in the present invention include magnesium powder and magnesium carbonate.
- Particularly preferred in the present invention is a magnesium powder having a high extreme pressure effect because it is excellent in heat resistance and hardly decomposes.
- the organic magnesium that can be used in the present invention is preferably an organic acid magnesium salt.
- the organic acid constituting the organic acid magnesium salt any salt such as an aromatic organic acid, an aliphatic organic acid, or an alicyclic organic acid can be used.
- organic acids are formic acid, acetic acid, propionic acid, butyric acid, valeric acid, proproic acid, heptanoic acid, 2-ethylhexylic acid, strong prillic acid, pelargonic acid, strong puric acid, undecyl.
- Monovalent saturated fatty acids such as acid, lauric acid, tridecylic acid, myristic acid, pentadecylic acid, palmitic acid, margaric acid, stearic acid, nonadecylic acid, araquinic acid, acrylic acid, crotonic acid, undecylenic acid, oleic acid, gadoleic acid, etc.
- Monounsaturated fatty acids malonic acid, methylmalonic acid, succinic acid, methylsuccinic acid, dimethylmalonic acid, ethylmalonic acid, glutaric acid, adipic acid, dimethylsuccinic acid, pimelic acid, tetramethylsuccinic acid, suberin Divalent saturated fatty acids such as acid, azelaic acid, sebacic acid and brassic acid, divalent such as fumaric acid, maleic acid and oleic acid Examples thereof include fatty acid derivatives such as unsaturated fatty acids, tartaric acid and citrate, aromatic organic acids such as benzoic acid, phthalic acid, trimellitic acid and pyromellitic acid, and alicyclic organic acids such as naphthenic acid. Particularly preferred in the present invention is magnesium stearate excellent in lubricity.
- the blending ratio of at least one magnesium-based additive selected from inorganic magnesium and organic magnesium is preferably 0.05 to 10 parts by weight with respect to 100 parts by weight of the base grease. That is, (1) When magnesium-based additive is only inorganic magnesium, 0.05-10 parts by weight of inorganic magnesium with respect to 100 parts by weight of base grease, and (2) When magnesium-based additive is only organic magnesium, 0.05 to 10 parts by weight of organic magnesium per 100 parts by weight of base dalyse, (3) When magnesium-based additive is inorganic magnesium and organic magnesium, inorganic magnesium and organic to 100 parts by weight of base grease It is preferable to combine 0.05 to 10 parts by weight with magnesium.
- the compounding power of the magnesium-based additive is less than 0.05 parts by weight, peeling on the rolling surface due to hydrogen embrittlement may not be effectively prevented.
- the blending amount exceeds 10 parts by weight, the delamination-suppressing effect will reach its peak and the cost will increase, and it may cause poor lubrication, and surface-origin type fatigue delamination may occur easily. Also, if the amount exceeds 10 parts by weight, abnormal wear may occur.
- the blending ratio of the magnesium-based additive is more preferably 0.05 to 5 parts by weight with respect to 100 parts by weight of the base grease.
- base oils examples include mineral oils such as spindle oil, refrigerator oil, turbine oil, machine oil, dynamo oil, highly refined mineral oil, liquid paraffin, and Fischer's GTL oil synthesized by the Tropsch process.
- Polybutene poly- ⁇ -olefin oil (PAO oil)
- PAO oil poly- ⁇ -olefin oil
- hydrocarbon-based synthetic oils such as alkylnaphthalene and alicyclic compounds, or natural oils, polyol ester oil, phosphate ester oil, polymer ester oil, aromatic Non-hydrocarbon synthetic oils such as group ester oils, carbonate ester oils, diester oils, polyglycol oils, silicone oils, polyether ether oils, alkyl diphenyl ether oils, alkyl benzene oils, fluorinated oils, etc., water-glycol hydraulic fluids And water-based lubricating oils such as
- alkyl diphenyl ether oil poly-a-olefin oil, polyol ester oil, and mineral oil that are excellent in heat resistance and lubricity.
- the PAO oil is usually ⁇ -olefin or a mixture of isomerized ⁇ -olefin oligomers or polymers.
- olefins include 1— Otaten, 1-nonene, 1-decene, 1-dodecene, 1-tridecene, 1-tetradecene, 1 pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene, 1-eicosene, 1-docosene, 1-tetracocene can be mentioned, and usually a mixture of these is used.
- mineral oils that are used in the field of ordinary lubricating oils and greases such as paraffinic mineral oils and naphthenic mineral oils can be used.
- the base oil that can be used in the grease composition enclosed in the grease-enclosed bearing of the present invention preferably has a kinematic viscosity at 40 ° C of 30 to 200 mm 2 / s. If it is less than 30 mm 2 / s, the amount of vaporization increases and the heat resistance decreases, which is not preferable. If it exceeds 200 mmVs, the temperature rise of the bearing due to an increase in rotational torque increases, which is not preferable.
- the base oil that can be used for the grease enclosed in the one-way clutch built-in rotation transmission device of the present invention preferably has a kinematic viscosity at 40 ° C. of 30 to 70 mmVsec. Particularly preferred is 40-60 mmVsec. If it is less than 30 mmVsec, the amount of evaporation increases and the heat resistance decreases, which is not preferable.On the other hand, if it exceeds 70 mmVsec, the rotational torque increases and the rolling contact surfaces of the clutch rollers and the ball of the rolling bearing This is not preferable because the temperature rise on the rolling surface increases.
- Examples of the thickener that can be used in the present invention include benton, silica gel, fluorine compound, lithium soap, lithium complex soap, sodium soap, calcium soap, calcium complex soap, aluminum soap, aluminum complex soap and the like.
- Urea compounds such as soaps, diurea compounds, polyurea compounds and the like can be mentioned.
- These thickening agents may be used alone or in combination of two or more. Of these, urea-based compounds are particularly preferable in view of heat resistance, cost, etc. that lithium-based soaps and urea-based compounds are preferred.
- urea compounds a urea compound represented by the following formula (1) is more preferable.
- R and R are hydrocarbon groups having 6 to 20 carbon atoms, and R and R are
- R is an aromatic hydrocarbon having 6 to 15 carbon atoms
- R and R are aromatic hydrocarbon groups having 6 to 12 carbon atoms or
- An alicyclic hydrocarbon group having 6 to 20 carbon atoms or an aliphatic hydrocarbon group having 6 to 20 carbon atoms is preferable.
- a urea compound is obtained by reacting an isocyanate compound and an amine compound in a base oil.
- the isocyanate group of the isocyanate compound and the amino group of the amine compound are blended so as to be approximately equivalent to the diurea compound represented by the formula (1)
- Diisocyanates include phenol-diisocyanate, diphenyl diisocyanate, diphenylenomethane diisocyanate, 1,5 naphthylene diisocyanate, 2,4 tolylene diisocyanate, 3,3-dimethinole 4 , 4-biphenol-diisocyanate, octadecane diisocyanate, decane diisocyanate, hexanediisocyanate, etc., and monoamines include octylamine, dodecylamine, hexadecylamine, stearylamine, Oleramine, errin, ptoluidine, cyclohexylamine and the like.
- the polyurea compound can be obtained, for example, by reacting diisocyanate with monoamine or diamine.
- diisocyanate and monoamine include those used for the production of the above-mentioned diurea compounds, and examples of the diamine include ethylenediamine, propanediamine, butanediamine, hexanediamine, octanediamine, phenylenediamine, tolylenediamine, xylenediamine, diaminodiphenyl- Lumethane etc. are mentioned.
- a base grease for blending the above-mentioned bismuth-based additive and magnesium-based additive can be obtained by blending the base oil with a thickening agent such as the urea-based compound.
- the blending ratio of the thickener in the base grease is 100 parts by weight of the base grease. 1 to 40 parts by weight, preferably 3 to 25 parts by weight of the thickening agent. If the content of the thickening agent is less than 1 part by weight, the effect of increasing will be reduced and it will be difficult to make grease, and if it exceeds 40 parts by weight, the resulting base grease will be too hard and the desired effect will be achieved. It becomes difficult to obtain.
- the blending degree of the grease enclosed in the one-way clutch built-in rotation transmission device of the present invention is preferably in the range of 200 to 400.
- the degree of mixing is the degree of mixing measured by JIS K 2220. If the blending degree is less than 200, the lubrication performance at low temperatures is deteriorated, and if it exceeds 400, the grease composition is liable to leak, which is not preferable.
- a known dully additive may be included as necessary.
- the additive include organic zinc compounds, antioxidants such as amines and phenols, metal deactivators such as benzotriazole, viscosity index improvers such as polymetatalylate and polystyrene, molybdenum disulfide, and Solid lubricants such as roughite, antifungal agents such as metal sulfonates and polyhydric alcohol esters
- friction reducing agents such as organic molybdenum, oily agents such as esters and alcohols, and antiwear agents such as phosphorus compounds. These can be added alone or in combination of two or more.
- the grease composition of the present invention can suppress the occurrence of peculiar peeling due to hydrogen embrittlement, the life of the grease-sealed bearing can be improved. For this reason, ball bearings, cylindrical roller bearings, tapered roller bearings, spherical roller bearings, needle roller bearings, thrust cylindrical roller bearings, thrust tapered roller bearings, thrust needle roller bearings, thrust spherical roller bearings, etc. Can be used as a sealing grease.
- FIG. Fig. 1 is a cross-sectional view of a deep groove ball bearing.
- a rolling bearing for automobile electrical equipment and auxiliary equipment that rotatably supports a rotating shaft driven by engine output on a stationary member, and for a motor that supports a rotor of a motor.
- Grease-enclosed bearings, rolling bearings for robots that support the rotating parts of industrial robots, and rolling bearings for fuel cell systems, such as rolling bearings for fuel cell systems, are comprised of an inner ring 2 that has an inner ring rolling surface 2a on its outer peripheral surface.
- An outer ring 3 having a running surface 3a is concentrically arranged, and a plurality of rolling elements 4 are arranged between the inner ring rolling surface 2a and the outer ring rolling surface 3a.
- a cage 5 for holding the plurality of rolling elements 4 and a seal member 6 fixed to the outer ring 3 and the like are provided at the axial end openings 8a and 8b of the inner ring 2 and the outer ring 3, respectively.
- the grease composition 7 is sealed at least around the rolling element 4.
- the grease-enclosed bearing in which the dali composition containing the bismuth-based additive or magnesium-based additive of the present invention is encapsulated has been shown to extend the bearing life.
- the compounded bismuth-based additive or magnesium-based additive decomposed and reacted on the frictional wear surface of the bearing or the new ferrous metal surface exposed by wear. It was found that a film containing a bismuth compound or a magnesium compound was formed on the rolling contact surface of the bearing along with the acid iron. It is thought that this generated film prevents the hydrogen generated by the decomposition of the base oil and the like from entering the bearing steel and suppresses the peeling due to hydrogen embrittlement.
- FIG. 2 and FIG. 3 show an example of an automotive electrical accessory that uses a rolling bearing for auxiliary machinery.
- FIG. 2 is a sectional view of the fan coupling device.
- the fan coupling device is provided with an oil chamber 11 in which a viscous fluid such as silicone oil is filled in a case 10 that supports a cooling fan 9 and a stirring chamber 12 in which a drive disk 18 is incorporated.
- a port 14 is formed in a partition plate 13 provided between 12, and an end of a spring 15 that opens and closes the port 14 is fixed to the partition plate 13.
- a bimetal 16 is attached to the front surface of the case 10, and a piston 17 of a spring 15 is provided on the bimetal 16.
- the bimetal 16 becomes flat when the temperature of the air that has passed through the radiator is below the set temperature, for example, 60 ° C, the piston 17 presses the spring 15, and the spring 15 closes the port 14.
- the bimetal 16 bends outward as shown in FIG. 3, the piston 17 releases the pressure of the spring 15, and the spring 15 is elastically deformed so that the port 14 Is released.
- the port 14 is closed by the spring 15 as shown in FIG. Therefore, the viscous fluid in the oil chamber 11 is agitated.
- the viscous fluid in the stirring chamber 12 does not flow into the chamber 12 and is sent into the oil chamber 11 from the circulation hole 19 provided in the partition plate 13 by the rotation of the drive disk 18.
- the fan 9 is equivalent to being connected if it is hot enough to be disconnected from the drive shaft 20.
- the die-sealed rolling bearing 1 is used in a wide temperature range and a wide rotation range from low temperature to high temperature.
- Figure 4 shows an example of an alternator for automotive electrical equipment.
- Figure 4 is a cross-sectional view of the alternator.
- the alternator includes a pair of frames 21 a and 21 b forming a stationary member housing, and a rotor rotating shaft 23 having a rotor 22 mounted thereon is rotatably supported by a pair of grease-filled rolling bearings 1.
- a rotor coil 24 is attached to the rotor 22, and a stator coil 26 having a diameter of 120 ° is attached to a stator 25 disposed on the outer periphery of the rotor 22.
- the rotor rotating shaft 23 is rotationally driven by a rotational torque transmitted by a belt (not shown) to a pulley 27 attached to the tip of the rotor rotating shaft 23.
- Pulley 27 is attached to rotor rotating shaft 23 in a cantilevered state, and vibration is also generated as rotor rotating shaft 23 rotates at high speed.Grease-filled rolling bearing 1 that supports pulley 27 side is particularly difficult.
- FIG. 5 shows an example of an idler pulley used as a belt tensioner for an auxiliary drive belt of an automobile.
- FIG. 5 is a sectional view of the idler pulley.
- This pulley includes a pulley body 28 made of a steel plate press and a grease-filled rolling bearing 1 which is a single row deep groove ball bearing fitted to the inner diameter of the pulley body 28.
- the pulley body 28 includes an inner diameter cylindrical portion 28a, a flange portion 28b in which one end force of the inner diameter cylindrical portion 28a extends to the outer diameter side, an outer diameter cylindrical portion 28c extending in the axial direction from the flange portion 28b, and the other end of the inner diameter cylindrical portion 28a.
- This is an annulus composed of a flange portion 28d extending from the inside to the inner diameter side.
- the outer diameter 3 of the grease-sealed rolling bearing 1 is fitted to the inner diameter of the inner diameter cylindrical portion 28a, and the outer peripheral diameter of the outer diameter cylindrical portion 28c is provided with a pulley peripheral surface 28e that comes into contact with the belt driven by the engine. /! By bringing the pulley peripheral surface 28e into contact with the belt, the pulley functions as an idler.
- Grease-filled rolling bearing 1 includes an outer ring 3 fitted to the inner diameter of the inner cylindrical portion 28a of the pulley body 28, an inner ring 2 fitted to a fixed shaft (not shown), and transfer surfaces 2a and 3a of the inner and outer rings 2 and 3. It is composed of a plurality of rolling elements 4 incorporated between them, a cage 5 that holds the rolling elements 4 at equal intervals around the circumference, and a pair of seal members 6 that seal the dolly, and the inner ring 2 and the outer ring 3 are each united. Is formed.
- each additive reacts on the frictional wear surface or the newly formed metal surface exposed by wear.
- a film containing a bismuth compound or a magnesium compound together with iron oxide is formed on the bearing rolling surface.
- the coating containing iron oxide and each compound formed on the bearing rolling surface can suppress the generation of hydrogen due to the decomposition of the base oil, and can prevent hydrogen and the specific peeling due to sex.
- FIG. Figure 6 is a cross-sectional view of the motor structure.
- the motor includes a stator 102 made of a magnet for a motor arranged on the inner peripheral wall of the jacket 101, a rotor 105 wound around a winding wire 104 fixed to the rotating shaft 103, and a fixed to the rotating shaft 103.
- a commutator 106, a brush holder 107 disposed in an end frame 109 supported by a jacket 101, and a brush 108 accommodated in the brush holder 107 are provided.
- the rotating shaft 103 is rotatably supported by the jacket 101 by a grease-filled bearing 1 and a support structure for the bearing 1.
- each additive reacts on the frictional wear surface or the newly formed metal surface exposed by wear.
- a film containing a bismuth compound or a magnesium compound is formed on the bearing rolling surface. The coating containing iron oxide and each compound formed on the bearing rolling surface suppresses the generation of hydrogen due to the decomposition of the base oil and electrolyzes the moisture in the air in the bearing due to the current flowing through the motor. This prevents the intrusion of hydrogen that may occur, and prevents the exfoliation due to hydrogen and sex.
- FIG. Fig. 7 is a cross-sectional view of an impeller-type pump used in a fuel cell vehicle.
- the arrow indicated by the dotted line indicates the direction of gas flow.
- the impeller-type pressure feeder is configured such that a rotating shaft 202 to which an impeller 201 is fixed is supported on a casing 203 by a plurality of dull sealed bearings 1 arranged at intervals in the axial direction. And When the rotating shaft 202 that rotates by receiving the power from the motor or the like rotates at high speed, the impeller 201 also rotates at high speed, and is pressurized by the centrifugal force of the gas force impeller 201 sucked from the gas suction port 204, and backed by the casing 203. The gas is delivered from a gas discharge port 207 through a pressure volute 206 formed with the plate 205.
- the knock plate 205 and the rotating shaft 202 are sealed by a seal ring 209 disposed therebetween so that gas does not leak from the pressurized volute 206 to the grease-filled bearing 1.
- the seal is generated as the rotating shaft 202 rotates at high speed.
- the sealing performance of the ring 209 decreases, the gas reaches the bearing 1 from the back space 208 on the back surface of the impeller 201 through the gap 210 between the rotary shaft 202 and the seal ring 209.
- a mechanical seal 211 is provided.
- the sealing performance of the mechanical seal 211 the sliding surface between the mechanical seal 211 and the rotary shaft 202 is in a water-lubricated state with water vapor contained in the gas.
- each additive reacts on the friction wear surface or the newly formed metal surface exposed by wear.
- a film containing a bismuth compound or a magnesium compound is formed on the bearing rolling surface. The coating containing iron oxide and each compound formed on the rolling contact surface of the bearing suppresses the generation of hydrogen due to the decomposition of the base oil, and the water force that is constantly replenished in the fuel cell system is also generated by the electrolysis reaction. By preventing the intrusion of hydrogen that may occur, peculiar delamination due to hydrogen embrittlement can be prevented.
- FIG. 8 is a sectional view of the wheel support device.
- the steering nuck nore 301 is provided with a flange 302, an axle nose 303 and a force S, and a pair of tapered roller bearings 304 a and 304 b mounted on the outer diameter surface of the axle 303 as a rotating member.
- the axle hub 305 is rotatably supported.
- the screw nove 305 has a flange 306 on the outer diameter surface, a stud bolt 307 provided on the flange 306, and a nut 308 threadedly engaged with the stud bolt 307.
- a wheel disc 310 is installed.
- Reference numeral 311 denotes a rim mounted on the outer diameter surface of the wheel disc 310, and a tire is mounted on the rim.
- the back plate 312 of the brake device is attached to the flange 302 of the steering knuckle 301 by tightening bolts and nuts.
- the back plate 312 supports a braking mechanism for applying a braking force to the brake drum 309, which is omitted in the drawing.
- the pair of tapered roller bearings 304a and 304b that rotatably support the fire hub 305 are lubricated by grease filled in the screw nove 305.
- a grease cap 31 7 is installed on the outer end surface of the axle hub 305 so as to cover the tapered roller bearing 304b. It has been.
- FIG. 9 is a partially cutaway perspective view of a tapered roller bearing.
- the roller bearing 304 is circular between the inner ring 314 and the outer ring 313, and the roller 316 is disposed via the cage 315.
- the tapered roller 316 receives rolling friction between the rolling surface 314a of the inner ring 314 and the rolling surface 313a of the outer ring 313, and receives sliding friction between the collar portions 3141) and 314c of the inner ring 314.
- the grease composition of the present invention is encapsulated in order to reduce wear due to friction and hydrogen brittle exfoliation on the rolling surface.
- bismuth powder as an additive is 0.01 to 15% by weight with respect to the entire grease.
- Rolling bearings filled with blended grease have improved long-term durability with less wear under heavy loads and sliding movements compared to rolling bearings filled with grease containing additives other than bismuth powder. I was strong.
- bismuth powder has better heat resistance and durability than chemicals other than bismuth powder, and is less prone to chemical changes due to heat, so it can sustain the extreme pressure effect for a long time, and is also generated on the bearing rolling surface. This is thought to be because hydrogen brittle exfoliation is suppressed by a coating containing iron oxide and a bismuth compound.
- FIG. 10 is a cross-sectional view showing a rotation transmission device with a built-in one-way clutch.
- This rotation transmission device with a built-in one-way clutch has a pair of rotating parts arranged concentrically with each other.
- a pulley 403 outer diameter side rotating member
- a sleeve 402 inner diameter side rotating member
- a pair of grease-enclosed bearings 1 and 1 and a roller clutch 404 that is a one-way clutch are provided between the inner diameter surface of the pulley 403 and the outer diameter surface of the sleeve 402.
- the pulley 403 is formed in a cylindrical shape as a whole, and a part of an annular belt called a poly V belt can be freely passed around the corrugated cross-sectional shape in the width direction of the outer diameter surface.
- the sleeve 402 is formed in a cylindrical shape as a whole, and is fitted and fixed to a rotating shaft of an auxiliary machine such as an alternator, and is rotatable together with the rotating shaft. Then, the die-filled bearings 1 and 1 are installed at positions where the roller clutch 404 is sandwiched from both axial sides of the cylindrical space located between the inner diameter surface of the pulley 403 and the outer diameter surface of the sleeve 402. At the same time, a roller clutch 404 is installed at the axially intermediate portion of the cylindrical space.
- the roller clutch 404 transmits the rotation force between the pulley 403 and the sleeve 402 only when the pulley 403 rotates relative to the sleeve 402 in a predetermined direction.
- the roller clutch 404 includes a clutch inner ring 405, a clutch outer ring 406, a plurality of rollers 407, a clutch retainer 408, and a spring (not shown).
- the outer ring for clutch 406 is fitted and fixed to the inner diameter surface of the intermediate portion of the pulley 403, and the inner ring for clutch 405 is fixed to the outer diameter surface of the intermediate portion of the sleeve 402 with an interference fit.
- the intermediate inner diameter surface of the clutch outer ring 406 is a simple cylindrical surface
- the outer diameter surface of the clutch inner ring 405 is a cam surface 409. That is, a plurality of concave portions 410 each called a ramp portion are provided at equal intervals in the circumferential direction of the outer diameter surface of the clutch inner ring 405, and the outer diameter surface of the clutch inner ring 405 serves as a cam surface 409! / RU
- the clutch retainer 408 is entirely made of synthetic resin, and its inner peripheral edge is engaged with a part of the cam surface 409 to prevent relative rotation with respect to the clutch inner ring 405.
- a convex portion 411 formed on the inner diameter surface of the end portion of the clutch cage 408 is formed between the step surface 412 provided on the outer diameter surface of the sleeve 402 and the axial end surface of the inner ring 405 for clutch.
- the clutch cage 408 is positioned in the axial direction by being held between them. Also, each roller 407 and clutch maintenance A spring (not shown) is provided between the holder 408 and the rollers 407 to press the rollers 407 in the same direction as the circumferential direction (direction in which the concave portions 410 become shallow).
- the cylindrical surface and the cam surface 409 that are in contact with the plurality of rollers 407 may be formed directly on the inner diameter surface of the pulley 403 and the outer diameter surface of the sleeve 402, respectively. is there. Further, the arrangement of the cam surface 409 and the cylindrical surface in the radial direction may be reversed from the above-described structure.
- each of these rolling bearings 1 and 1 has a deep groove type inner ring rolling surface 2a on the outer diameter surface, as shown in detail in FIG. 1 which is a sectional view of a deep groove type ball bearing, and a sleeve.
- the sleeve 402 is fitted and fixed to the end of the rotating shaft of an automotive electrical accessory such as an alternator, and the outer diameter surface of the pulley 403 is An annular belt is stretched over.
- This annular belt is wound around a driving pulley fixed to an end portion of an engine crankshaft or the like, and is driven by the rotation of the driving pulley.
- the one rotating shaft The force can freely transmit the rotational force to the pulley 403, and the other rotating shaft can be prevented from rotating.
- a rotation transmission device with a built-in one-way clutch on the end of the electric shaft of an automotive electrical accessory and the drive shaft of a crankshaft, it can be used as an accessory drive device when the engine is idling. .
- inorganic bismuth is superior to materials other than inorganic bismuth in heat resistance and resistance to thermal decomposition, so that the extreme pressure effect can be maintained for a long time, and iron oxide produced on the bearing rolling surface and This is considered to be because hydrogen brittle exfoliation is suppressed by a coating containing a bismuth compound or the like.
- the base oil for the lubricating oil thread and the composition either an aqueous lubricating oil or a non-aqueous lubricating oil can be used as long as it is widely used as a lubricating oil.
- the same base oil as the above-described dull composition can be used.
- preferable results can be obtained by using ester oil, silicone oil or the like.
- inorganic magnesium or organic magnesium is difficult to dissolve in the lubricating oil, the effect of suppressing exfoliation due to hydrogen embrittlement can be further exerted by, for example, pulverizing in advance or adding a dispersant.
- inorganic magnesium and organic magnesium strength are also selected.
- the blending ratio of at least one magnesium-based additive is preferably 0.01 to 10% by weight with respect to the entire lubricating oil composition. That is, (1) When the magnesium-based additive is only inorganic magnesium, 0.01 to 10% by weight of inorganic magnesium with respect to the entire lubricating oil composition, (2) When the magnesium-based additive is only organic magnesium , 0.01 to 10% by weight of organic magnesium with respect to the entire lubricating oil composition, and (3) when the magnesium-based additive is inorganic magnesium and organic magnesium, inorganic magnesium and organic with respect to the entire lubricating oil composition 0.01 to 10 weight combined with magnesium 0/0 compounded.
- the blending ratio of the magnesium-based additive is preferably 0.01 to 5% by weight. If the blending amount is less than 0.01% by weight, peeling on the rolling surface due to hydrogen embrittlement cannot be effectively prevented. On the other hand, if the blending amount exceeds 10% by weight, the delamination-suppressing effect reaches its peak and the cost increases, and it causes poor lubrication and easily causes surface-originating fatigue delamination.
- an antioxidant or an antifungal agent is used as necessary, as long as it does not impair the formation of a film containing a magnesium compound formed on the new ferrous metal surface exposed on the frictional wear surface.
- Well-known compounding agents such as oiliness agents, viscosity index improvers, pour point depressants, antifoaming agents, emulsifiers, metal inert agents, and detergent / dispersants can be blended.
- an antifungal agent in order to prevent wrinkling of the bearing steel.
- the antifungal agent include carboxylic acid, carboxylic acid salt, sulfonic acid salt, amine, alkenyl succinic acid or a partial ester thereof.
- FIG. 12 is a perspective view showing an example of a shell needle roller bearing.
- Needle roller bearing 601 a needle roller 603 with a cage 604 is incorporated in an outer ring 602 manufactured from a steel plate by precision deep drawing or the like. Needle roller bearing 601 can have a shaft directly on the raceway surface, and is often lubricated with a lubricating oil thread and composition.
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the reaction was continued at 100 to 120 for 30 minutes with stirring to form a diurea compound in the base oil.
- Organic bismuth and an antioxidant were added to the mixture in the proportions shown in Table 1-1, and the mixture was stirred at 100 to 120 for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a grease composition.
- the synthetic hydrocarbon oil used as the base oil is Shinflud 801, a product name manufactured by Nippon Steel Chemical Co., Ltd. with a kinematic viscosity of 47 m mVsec at 40 ° C, and the alkyl diphenyl ether oil is 40 ° C. Moresco High LB100 manufactured by Matsumura Oil Co., Ltd. with a kinematic viscosity of 97 mmVsec was used. As the antioxidant, hindered phenol manufactured by Sumitomo Chemical Co., Ltd. was used.
- the obtained grease composition was subjected to a rapid acceleration / deceleration test 1.
- the test method and test conditions are shown below.
- the results are shown in Table 1-1.
- a rapid acceleration / deceleration test 1 was performed on a rolling bearing with internal rotation that supports the rotating shaft of an alternator, which is an example of an electrical accessory.
- the conditions for the rapid acceleration / deceleration test 1 were set to 3234 N for the load applied to the pulley attached to the tip of the rotating shaft and the operating conditions were 0 to 18000 rpm. Then, abnormal peeling occurred in the bearing, and the time when the vibration of the vibration detector exceeded the set value and the generator stopped (peeling life time, h) was measured.
- Example 1-1 Using the method according to Example 1-1, the base grease was adjusted by selecting the thickener and the base oil at the mixing ratio shown in Table 1-1, and the additive was further added to obtain a grease composition. .
- the obtained grease composition was evaluated by conducting the same test as in Example 1. The results are shown in Table 1.
- Alkyl diphenyl ether oil 1 32 32 32 15 80 32 32 32 32 32 32 32 32 Synthetic hydrocarbon oil 48 48 48 63 1 48 48 48 48 48 Polyol ester oil 3)
- Total base grease (Total base grease) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) Additive
- Examples 1-1 to 1-5 can effectively prevent specific peeling accompanied by white yarn and weaving changes that occur on the rolling surface.
- the rapid acceleration / deceleration test 1 of Example 1-1 to Example 1-5 all showed 300 hours or more.
- Example 1-6 to Example 1-10, Example 1-13, Example 1-14
- HMDI 4,4-diphenylmethane diisocyanate
- the organic bismuth containing no inorganic bismuth or sulfur component and the antioxidant were added at the blending ratio shown in Table 1-2, and the mixture was further stirred at 100 to 120 for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a grease composition.
- the alkyl diphenyl ether oil used as the base oil is LB100 made by Matsumura Oil
- the synthetic hydrocarbon oil is Shinflud 601 made by Nippon Steel Chemical Co.
- the polyol ester oil is Kao.
- Kao Lube 268 manufactured by Kogyo Co., Ltd., and Ketjen Loop 115 manufactured by Axono Bell Co., Ltd. were used as the polymer ester oil.
- the mineral oil used was a paraffinic mineral oil with a kinematic viscosity of 30.7 mm 2 / s (40 ° C).
- antioxidant alkylated diphenolamine or hindered phenol was used.
- the obtained grease composition was subjected to a high-temperature high-speed test 1, a rapid acceleration / deceleration test 2, and a miscibility test according to Japanese Industrial Standards. Test methods and test conditions are shown below. The results are shown in Table 1-2 and Table 1-3.
- Roller bearing for motor (6204) is filled with 1.8 g of the grease composition shown in Table 1-2 and Table 1-3, respectively, and the outer ring outer diameter temperature is 180 ° C (Example ⁇ 11 and Example ⁇ 12). In this case, it was rotated at 10,000 rpm under a radial load of 67 N and an axial load of 67 N, and the time until seizure was measured.
- Li-12-hydroxystearate was added to the base oil shown in Table 1-2, and was dissolved by heating at 200 ° C. with stirring. The mixing ratios are as shown in Table 2. After cooling, organic bismuth containing no inorganic bismuth or sulfur component and an antioxidant were added at a blending ratio shown in Table 2 and homogenized with three rolls to obtain a grease composition. .
- This grease composition was subjected to a high-temperature high-speed test 1 and a rapid acceleration / deceleration test 2 in the same manner as in Example 1-6. However, considering the heat resistance of Li soap grease, the high-temperature high-speed test 1 was conducted at 150 ° C.
- the base grease was adjusted by selecting the thickener and the base oil at the blending ratio shown in Table 1-3, and the additive was further blended to obtain a grease composition. .
- the obtained grease composition was evaluated by conducting the same test as in Example 1-6. The results are shown in Table 1-3.
- Total base grease (Total base grease) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
- Kaolubu Kao 268 Kinematic viscosity at 40 ° C 33 mm / sec 10) Reagents manufactured by Wako Pure Chemical Industries
- Ketchen Lube manufactured by Akzo Nobel 1 1 5 Kinematic viscosity at 40 ° C 112 mmVsec 11) Reagent manufactured by Kanto Chemical Co.
- Paraffinic mineral oil Kinematic viscosity at 40 e C 30.7 mmVsec 12) Reagents manufactured by Kanto Chemical Co.
- Grease composition formulation (parts by weight)
- MALESCO HEIL LB made by Matsumura Oil Research Institute LB100: Kinematic viscosity at 40 ° C 97 mm se 8) Sumitomo Chemical Co., Ltd. Reagent manufactured by Kao Co., Ltd. Kaolubu Co., Ltd. Kinematic viscosity at 268: 40 C 33 mmVsec 0) Reagent manufactured by Wako Pure Chemical Industries, Ltd.
- Ketjenlube manufactured by Akzo Nobel 1 15 Kinematic viscosity at 40 ° C 112 mmVsec 1) Reagent manufactured by Kanto Chemical Co., Inc.
- Paraffinic mineral oil Kinematic viscosity at 40 ° C 30.7 mmVsec 2) Reagents manufactured by Kanto Chemical
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the reaction was continued for 30 minutes at 100 to 120 ° C. to produce a diurea compound in the base oil.
- Bismuth-based additives and anti-oxidation agents were added to the mixture at the blending ratios shown in Table 1-4, and the mixture was further stirred at 100 to 120 ° C for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a grease composition.
- the synthetic hydrocarbon oil used as the base oil is Shinflud 801, a trade name of Nippon Steel Chemical Co., Ltd. with a kinematic viscosity of 47 m mVsec at 40 ° C, and the alkyl diphenyl ether oil is 40 ° C. Moresco High LB100 manufactured by Matsumura Oil Co., Ltd. with a kinematic viscosity of 97 mmVsec was used. As the antioxidant, hindered phenol manufactured by Sumitomo Chemical Co., Ltd. was used.
- Rapid acceleration / deceleration test 3 of the obtained grease composition was performed.
- the test method and test conditions are shown below.
- the results are shown in Table 1-4.
- a rapid acceleration / deceleration test 3 was performed on a rolling bearing with internal rotation that supports the rotating shaft of an alternator, which is an example of an electrical accessory.
- the conditions for the rapid acceleration / deceleration test 3 were set such that the load applied to the pulley attached to the tip of the rotating shaft was 3234 N and the rotation speed was 0 to 18000 rpm. The time when the generator was stopped when the abnormal separation occurred in the bearing and the vibration of the vibration detector exceeded the set value was measured.
- the base grease was prepared by selecting the thickener and the base oil at the blending ratio shown in Table 1-5, and the additive was further blended to obtain a grease composition. .
- the obtained grease composition was evaluated by conducting the same test as in Example V-15. The results are shown in Table IV.
- Grease composition formulation (parts by weight)
- Hinder dofenol manufactured by Sumitomo Chemical Co., Ltd.
- Grease composition formulation (parts by weight)
- Total base grease (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100) (100)
- Antioxidant A 7) 1 1 1 1 1 1 1 1 1 1
- Antioxidant B 8) 1 1 1 1 1 1 1 One 1 1 1
- Examples 1-15 to 1-27 can effectively prevent specific exfoliation accompanied by white tissue change occurring on the rolling surface. Therefore, it is excellent in the rapid acceleration / deceleration test 3.
- the rapid acceleration / deceleration tests 3 of Examples 1-15 to 1-27 all showed 300 hours or more.
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the reaction was continued for 30 minutes at 100 to 120 ° C. to produce a diurea compound in the base oil.
- Bismuth-based additives and anti-oxidation agents were added to the mixture in the proportions shown in Table 1-6, and the mixture was further stirred at 100 to 120 ° C for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a grease composition.
- alkyldiphenyl ether oil used as the base oil is Moresco High Loop LB100 manufactured by Matsumura Oil Co., Ltd.
- synthetic hydrocarbon oil is Shinflud 6 01 manufactured by Nippon Steel Chemical Co.
- polyol ester oil is Kao Kao Loop 268 made by the company was used.
- the mineral oil used was a paraffinic mineral oil with a kinematic viscosity of 30.7 mm 2 / s (40 ° C).
- alkyl diamine was used as the antioxidant.
- the resulting grease composition was measured for miscibility, a high-temperature high-speed test 2, and a rapid acceleration / deceleration test 4. Consistency measurement is performed by the method according to Japanese Industrial Standard JIS K2220. For high-temperature high-speed test 2 and rapid acceleration / deceleration test 4, the test method and test conditions are shown below. The results are shown in Table 1-6.
- Roller bearing for robot (6204) is filled with 1.8 g of grease composition shown in Table 1-6 and Table 1-7, bearing outer ring outer diameter temperature 180 ° C, radial load 67 N, axial load 67 Under N, rotate at 10000 rpm and measure the time to burn-in.
- a rapid acceleration / deceleration test 4 was conducted by incorporating it in a rolling bearing with a supported internal rotation. The conditions of the rapid acceleration / deceleration test 4 were set such that the load applied to the pulley attached to the tip of the rotating shaft was 32 34 N and the rotation speed was 0 to 18000 rpm. The time when the generator was stopped when the abnormal separation occurred in the bearing and the vibration of the vibration detector exceeded the set value was measured. In addition, in the test, 1 part by weight of pure water was previously mixed with 100 parts by weight of the grease composition. The added grease composition was used. The test was terminated in 100 hours.
- Li-12-hydroxystearate was added to the base oil shown in Table 1-6, and dissolved by heating at 200 ° C with stirring. The mixing ratios are as shown in Table 6 below. Thereafter, the mixture was cooled, and bismuth-based additives and anti-oxidation agents were added in the proportions shown in Table 1-6, and homogenized with three rolls to obtain a grease composition.
- the grease composition was subjected to a high-temperature high-speed test 2 and a rapid acceleration / deceleration test 4 in the same manner as in Example 1-28. However, considering the heat resistance of Li soap grease, the high-temperature high-speed test 2 was conducted at 150 ° C.
- the base grease was prepared by selecting the thickener and the base oil at the blending ratio shown in Table 1-7, and the additive was further blended to obtain a grease composition.
- the obtained grease composition was evaluated by conducting the same test as in Example 28. The results are shown in Table 7.
- Examples 1-28 to 1-42 show specific delamination with white structure change that occurs on the rolling surface of rolling bearings for robots. Since it can be effectively prevented, it is excellent in high-temperature high-speed tests 3 and rapid acceleration / deceleration tests 4. The rapid acceleration / deceleration tests in Examples 1-28 to Examples 1-42 all showed 100 hours or more.
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the mixture was reacted at 100 120 for 30 minutes with stirring to produce a diurea compound in the base oil.
- the mixture was further stirred at 100 to 120 for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a dull composition.
- the synthetic hydrocarbon oil used as the base oil is Shinflud 801 manufactured by Nippon Steel Chemical Co., Ltd., which has a kinematic viscosity of 47 m mVsec at 40 ° C, and the alkyl diphenyl ether oil has a dynamic viscosity at 40 ° C.
- Trade names Morescono and Iloop LB100 manufactured by Matsumura Oil Co., Ltd. with a viscosity of 97 mmVsec were used.
- As the acid / anti-oxidation agent Hindered phenol manufactured by Sumitomo Chemical Co., Ltd. was used.
- the obtained grease composition was subjected to a rapid acceleration / deceleration test 5.
- the test method and test conditions are shown below.
- the results are shown in Table 2-1.
- a rapid acceleration / deceleration test 5 was conducted on a rolling bearing with internal rotation that supports the rotating shaft of an alternator, which is an example of an electrical accessory.
- the conditions of the rapid acceleration / deceleration test 5 were set so that the load applied to the pulley attached to the tip of the rotating shaft was 3234 N and the rotation speed was 0 to 18000 rpm.
- the time when the generator was stopped when the abnormal separation occurred in the bearing and the vibration of the vibration detector exceeded the set value was measured.
- Example 2-1 Using the method according to Example 2-1, the base grease was adjusted by selecting the thickener and base oil at the blending ratio shown in Table 2-1, and the additive was further blended to obtain a grease composition. .
- the obtained grease composition was evaluated by conducting the same test as in Example 2-1. The results are shown in Table 2-1.
- Grease composition formulation (parts by weight)
- Alkyl diphenyl ether oil ⁇ 32 32 32 SO 32 32 32 32
- Antioxidant A 7 _ 1 1 1 1 1 1
- Example 2-1 to Example 2-4 can effectively prevent specific exfoliation accompanied by a white tissue change occurring on the rolling surface, so rapid acceleration / deceleration is possible. Excellent in test 5.
- the rapid acceleration / deceleration tests 5 in Examples 2-1 to 2-4 all showed 300 hours or more.
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the reaction was continued with stirring at 100 to 20 ° C. for 30 minutes to form a diurea compound in the base oil.
- the mixture was further stirred at 100 to 120 ° C for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a dull composition.
- the synthetic hydrocarbon oil used as the base oil is Shinflud 801 manufactured by Nippon Steel Chemical Co., Ltd. with a kinematic viscosity of 47 m mVsec at 40 ° C, and the alkyl diphenyl ether oil has a kinematic viscosity at 40 ° C.
- a 97 mmVsec Moresco high lube LBIOO manufactured by Matsumura Oil Co., Ltd. and a polyol ester oil having a kinematic viscosity at 40 ° C of 33 mmVsec Kaolubu 268 manufactured by Kao Corporation were used.
- the mineral oil used was a paraffinic mineral oil with a kinematic viscosity of 30.7 mmVsec (40 ° C).
- alkyl diamine was used as the antioxidant.
- the resulting grease composition was measured for miscibility, a high-temperature high-speed test 4 and a rapid acceleration / deceleration test 6. Consistency measurement is performed by the method according to Japanese Industrial Standard JIS K2220. For high-temperature high-speed test 4 and rapid acceleration / deceleration test 6, the test method and test conditions are shown below. The results are shown in Table 2-2.
- Li-12-hydroxystearate was added to the base oil shown in Table 2-2, and heated and dissolved at 200 ° C. with stirring. The mixing ratios are as shown in Table 2-2. Then cold On the other hand, a magnesium-based additive and an anti-oxidation agent were added at the blending ratios shown in Table 2-2, and the mixture was homogenized with three rolls to obtain a grease composition.
- the grease composition was subjected to a high-temperature high-speed test 4 and a rapid acceleration / deceleration test 6 in the same manner as in Example 2-1. However, considering the heat resistance of Li soap grease, the high-temperature high-speed test 4 was conducted at 150 ° C. The results are shown in Table 2-2.
- Example 2-1 the base grease was adjusted by selecting the thickener and base oil at the blending ratio shown in Table 2-2, and the additive was further blended to obtain a grease composition. .
- the obtained grease composition was evaluated by performing the same test as in Example 2-1. The results are shown in Table 2-2.
- Paraffinic mineral oil kinematic viscosity in mmVsec
- Table 2-3 shows 4, 4-diphenylmethane diisocyanate (trade name Millionate MT, manufactured by Nippon Polyurethane Industry Co., Ltd., hereinafter referred to as MDI) in half of the base oil shown in Table 2-3. Dissolved in proportion, monoamine was dissolved in the remaining half of the base oil, which was twice the equivalent of MDI. Table 2-3 shows the mixing ratio and type of each.
- a solution in which monoamine was dissolved was added while stirring the solution in which MDI was dissolved, and then the reaction was continued for 30 minutes at 100 to 120 ° C. to produce a diurea compound in the base oil.
- a magnesium-based additive and an antioxidant were added at the blending ratios shown in Table 2-3, and the mixture was further stirred at 100 to 120 ° C for 10 minutes. Thereafter, the mixture was cooled and homogenized with three rolls to obtain a grease composition.
- the synthetic hydrocarbon oil used as the base oil is Shinflud 801 manufactured by Nippon Steel Chemical Co., Ltd., which has a kinematic viscosity of 47 m mVsec at 40 ° C, and the alkyl diphenyl ether oil has a kinematic viscosity at 40 ° C.
- a 97 mmVsec Moresco high lube LBIOO made by Matsumura Sekiyu Co., Ltd., Kao's Kaolube 268 and Kakchen Loop 115 made by Akzo Nobel were used as ester oil, and paraffinic mineral oil was used.
- the acid inhibitor alkyl diphenylamine or hindered phenol manufactured by Sumitomo Chemical Co., Ltd. was used.
- a rapid acceleration / deceleration test 7 and a high-temperature high-speed test 5 were performed on the obtained grease composition. Test methods and test conditions are shown below. The results are shown in Table 2-3.
- Each rolling bearing (6303) was filled with 2.3 g of the grease composition shown in Table 2-3. To apply a load, it was incorporated into a rolling bearing with internal rotation and a rapid acceleration / deceleration test 7 was conducted. The conditions of the rapid acceleration / deceleration test 7 were set such that the load applied to the pulley attached to the tip of the rotating shaft was 3234 N and the rotation speed was 0 to 18000 rpm. Then, when the abnormal separation occurs in the bearing, the vibration detector vibration exceeds the set value and the generator is stopped. It was measured as the life time when the peeling occurred.
- Each rolling bearing (6204) is filled with 1.8 g of the grease composition shown in Table 2-3, and the bearing outer ring outer diameter temperature is 180 ° C, radial load is 67 N, and axial load is 67 N. Rotated with, and measured the time to burn-in.
- Li-12-hydroxystearate was added to the base oil shown in Table 2-3, and heated and dissolved at 200 ° C. with stirring. The compounding ratios are as shown in Table 2-3. Thereafter, the mixture was cooled, and inorganic magnesium, organic magnesium, and antioxidant were added thereto at the blending ratios shown in Table 2-3, and homogenized with three rolls to obtain a grease composition.
- This grease composition was subjected to a high-temperature high-speed test 5 and a rapid acceleration / deceleration test 7 in the same manner as in Example 2-11. However, considering the heat resistance of Li soap grease, the high-temperature high-speed test 5 was conducted at 150 ° C. The results are shown in Table 2-3.
- the base grease was prepared by selecting the thickener and base oil at the blending ratio shown in Table 2-3, and the additive was further blended to obtain a grease composition. .
- the obtained grease composition was evaluated by conducting the same test as in Example 2-11. The results are shown in Table 2-3.
- Antioxidant _ 1 Antioxidant 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Magnesium powder 9 ) 1 1 1 1 1 1 1 1 1 1 Magnesium oxalate 10 ) 1 1 1 1 1 1 1 1 1 1 1 1
- Needle roller bearings (inner ring outer diameter ⁇ 24 mm, outer ring inner diameter ⁇ 32 mm, width 20 mm, rollers ⁇ 4 X 1 6.8 mm X 14) are lubricated with the lubricating oil composition shown in Table 3. A life test was conducted.
- peeling occurrence time was defined as the peeling occurrence time when the vibration detector vibration exceeded the set value. Thereafter, it was visually confirmed that peeling occurred on the rolling surface. The results are shown in Table 3.
- Water-glycol hydraulic fluids have a working viscosity in water: glycol:
- Mineral oil is a baraffin system, kinematic viscosity in
- the film decomposes and reacts on the frictional wear surface or the newly formed metal surface exposed by wear to form a film containing a magnesium compound together with iron oxide.
- the life characteristics evaluated by the delamination occurrence time were improved.
- Li soap Z mineral oil grease 40 ° C base oil viscosity 100 mmVsec, shown in Table 4-1.
- Lithium ZPAO oil grease 40 ° C base oil viscosity 46 mmVsec, miscibility 280
- Li soap Z ester oil grease 40 ° C base oil viscosity 33 mmVsec, miscibility 250
- urea Z ether oil grease 40 ° C base oil viscosity 100 mmVsec, let's mix Degree 300).
- Li soap Z mineral oil grease 40 ° C base oil viscosity 100 mmVsec, shown in Table 4-2.
- Lithium ZPAO oil grease 40 ° C base oil viscosity 46 mmVsec, miscibility 280
- Li soap Z ester oil grease 40 ° C base oil viscosity 30 mmVsec, miscibility 250
- urea Z ether oil grease 40 ° C base oil viscosity 100 mmVsec, miscibility 300
- Li soap / mineral oil based grease 100 1 1 1 95 95 95 95 1 1 1 1 1 1 Grease urea / PAO oil based grease 100-----95 99.99 80 (parts by weight) Li soap / seal oil based grease-100--- ----Urea / Aoi oil-based grease 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Bismuth powder A 1) 1 1 1 1 1 1 0.01 20 Extreme pressure agent Bismuth powder B 2) 1 1 1 1 1 1 1 1 1 1 1 1 (part by weight) Bismuth powder c ) -----5 5--Molybdenum dithiocarbamate 1 1 1 1 5 1 1 1 1 1 1 1 Zinc powder 1 1 1 1 1 1 5 1 1 1 1 1 Extreme pressure evaluation test , H 16 39 6 14 16 20 165 190 60 240 Roller bearing test, 3 ⁇ 4 85 74 48 72 90 84 80 78 72 96 Particle size: 75 ⁇ 150jli m
- Particle monster 10 ⁇ 38 ⁇ m
- Fig. 11 shows the extreme pressure evaluation test equipment.
- the evaluation test apparatus includes a 40 ⁇ 10 ring-shaped test piece 502 fixed to the rotating shaft 501, and a ring-shaped test piece 503 in which the end faces are rubbed with each other at the end face 504.
- Grease for roller bearings was applied to the end surface 504, and the extreme pressure property was evaluated by applying an axial load 490 N and a radial load 392 N in the right direction A in FIG.
- the extreme pressure property was measured by measuring the vibration of the rotating shaft 501 caused by increased frictional wear at the sliding parts of both specimens with a vibration sensor, testing until the vibration value was twice the initial value, and measuring the time. .
- 30206 tapered roller bearings were filled with 3.6 g of grease, operated at an axial load of 980 N, a rotational speed of 2600 rpm, and room temperature, and the surface temperature of the rotating collar was measured. After the start of operation, the average value of the collar surface temperature for 4 to 8 hours was calculated.
- Example 4-1 to Example 4-8 were compared with Comparative Example 4-1 to Comparative Example 4-10.
- the standard for the heat resistance and durability of the grease is that the temperature is less than 70 ° C.
- Example 4-1 to Example 4-8 and Comparative Example 4-1 to Comparative Example 4-1 are compared with each other.
- Bismuth powder with an average particle size of m or less is used for extreme pressure evaluation test 1 and roller bearing test! Excellent heat resistance and durability
- Example 5 In a reaction vessel, add a thickener to the base oil, homogenize it using a three-roll mill, and use the Li soap Z mineral oil grease (40 ° C base oil viscosity 100 mmVsec), urea shown in Table 5.
- Z PAO oil-based grease (40 ° C base oil viscosity 46 mm 2 / sec) was obtained.
- Sarakuko, inorganic bismuth as an extreme pressure agent, and amine-based antioxidant (Nouchi AD-F, manufactured by Ouchi Shinsei Chemical Co., Ltd.) as an additive were added to the above greases in the proportions shown in Table 5 for comparison. Dalies of Example 5-1 to Comparative Example 5-7 were produced. The obtained grease was subjected to an extreme pressure evaluation test 2 and a high temperature high speed test 6 in the same manner as in Example 5-1. The results are also shown in Table 5.
- Fig. 11 shows the extreme pressure evaluation test equipment.
- the evaluation test apparatus includes a 40 ⁇ 10 ring-shaped test piece 502 fixed to the rotating shaft 501, and a ring-shaped test piece 503 in which the end surfaces are rubbed with each other at the end face 504.
- Grease for roller bearings was applied to the 504 part of the end face, and the extreme pressure property was evaluated by applying an axial load of 490 N and a radial load of 392 N in the right direction A in FIG.
- the extreme pressure properties of both specimens The vibration of the rotating shaft 501 caused by increased frictional wear at the edge was measured with a vibration sensor, and the test was performed until the vibration value was twice the initial value, and the time was measured.
- Example 5-1 to Example 5-5 using inorganic bismuth are more extreme pressure than Comparative Examples 5-3 and 5-5 using organic bismuth. It showed superior heat resistance and durability.
- bismuth powder showed the best heat durability.
- the grease composition of the present invention can effectively prevent specific exfoliation accompanied by a white texture change that occurs on the rolling surface, so that a fan coupling device, an alternator, an idler pulley, an electromagnetic clutch for air conditioner, Automotive electrical equipment such as electric fan motors Rolling bearings for auxiliary machines, grease-filled bearings for motors for industrial machines and electrical equipment, rolling bearings for fuel cell systems used for pumping machines that pump various fluids in fuel cell systems , Rolling bearings for robots used in the working parts of industrial robots, rolling bearings for wheel support devices used for wheel support devices for instructing the vehicle suspension to rotate freely, and It can be suitably used as a grease composition enclosed in a one-way clutch built-in rotation transmission device.
- FIG. 1 A sectional view of a grease-filled bearing (deep groove ball bearing).
- FIG. 2 is a cross-sectional view of the fan coupling device.
- FIG. 3 is a cross-sectional view of the fan coupling device.
- FIG. 4 is a sectional view of an alternator.
- FIG. 5 is a sectional view of an idler pulley.
- FIG. 6 is a cross-sectional view of the motor structure.
- FIG. 7 is a cross-sectional view of an impeller type pressure feeder.
- FIG. 8 is a cross-sectional view of the wheel support device.
- FIG. 9 is a partially cutaway perspective view of a roller bearing.
- FIG. 10 is a cross-sectional view showing a rotation transmission device with a built-in direction clutch.
- FIG. 11 is a view showing an extreme pressure evaluation test apparatus.
- 12 A perspective view of a needle roller bearing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/918,566 US7910525B2 (en) | 2005-04-20 | 2006-04-20 | Grease composition, grease-enclosed bearing, and rotation-transmitting apparatus with built-in one way clutch |
DE112006000987T DE112006000987T5 (de) | 2005-04-20 | 2006-04-20 | Schmierfettzusammensetzung, Lager mit eingeschlossenem Schmierfett und Rotationsübertragungsvorrichtung mit eingebauter Einwegkupplung |
CN2006800136221A CN101163781B (zh) | 2005-04-20 | 2006-04-20 | 润滑脂组合物、润滑脂封入式轴承与单向离合器内装型旋转传动装置 |
Applications Claiming Priority (28)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005122634A JP2006300211A (ja) | 2005-04-20 | 2005-04-20 | 一方向クラッチ内蔵型回転伝達装置 |
JP2005-122634 | 2005-04-20 | ||
JP2005-204804 | 2005-07-13 | ||
JP2005204804A JP5007029B2 (ja) | 2005-07-13 | 2005-07-13 | グリース組成物および該グリース封入転がり軸受 |
JP2005204769A JP2007023104A (ja) | 2005-07-13 | 2005-07-13 | グリース組成物および該グリース封入軸受 |
JP2005-204769 | 2005-07-13 | ||
JP2005-218906 | 2005-07-28 | ||
JP2005218906A JP4335182B2 (ja) | 2005-07-28 | 2005-07-28 | 車輪支持装置 |
JP2005-226221 | 2005-08-04 | ||
JP2005226220A JP4838549B2 (ja) | 2005-08-04 | 2005-08-04 | グリース組成物および該グリース封入転がり軸受 |
JP2005-226220 | 2005-08-04 | ||
JP2005226221A JP2007040446A (ja) | 2005-08-04 | 2005-08-04 | 自動車電装・補機用転がり軸受 |
JP2005-234118 | 2005-08-12 | ||
JP2005-234119 | 2005-08-12 | ||
JP2005234118A JP2007045994A (ja) | 2005-08-12 | 2005-08-12 | 潤滑油組成物 |
JP2005234119A JP2007046753A (ja) | 2005-08-12 | 2005-08-12 | 自動車電装・補機用転がり軸受 |
JP2005240104A JP2007059091A (ja) | 2005-08-22 | 2005-08-22 | 燃料電池システム用転がり軸受 |
JP2005240105A JP2007056906A (ja) | 2005-08-22 | 2005-08-22 | モータ用グリース封入軸受 |
JP2005-240105 | 2005-08-22 | ||
JP2005-240104 | 2005-08-22 | ||
JP2005-253905 | 2005-09-01 | ||
JP2005-253906 | 2005-09-01 | ||
JP2005253906A JP2007064443A (ja) | 2005-09-01 | 2005-09-01 | モータ用グリース封入軸受 |
JP2005253905A JP2007064442A (ja) | 2005-09-01 | 2005-09-01 | 燃料電池システム用転がり軸受 |
JP2005254738A JP2007064456A (ja) | 2005-09-02 | 2005-09-02 | ロボット用転がり軸受 |
JP2005-254653 | 2005-09-02 | ||
JP2005-254738 | 2005-09-02 | ||
JP2005254653A JP2007064454A (ja) | 2005-09-02 | 2005-09-02 | ロボット用転がり軸受 |
Publications (1)
Publication Number | Publication Date |
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WO2006112502A1 true WO2006112502A1 (ja) | 2006-10-26 |
Family
ID=37115210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/308314 WO2006112502A1 (ja) | 2005-04-20 | 2006-04-20 | グリース組成物、グリース封入軸受、および、一方向クラッチ内蔵型回転伝達装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7910525B2 (ja) |
DE (1) | DE112006000987T5 (ja) |
WO (1) | WO2006112502A1 (ja) |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134006A (ja) * | 1974-04-15 | 1975-10-23 | ||
JPS60149696A (ja) * | 1984-01-13 | 1985-08-07 | Idemitsu Kosan Co Ltd | グリ−ス組成物 |
JPH0841478A (ja) * | 1994-03-28 | 1996-02-13 | Skf Ind Trading Dev Co Bv | 転がり軸受用極圧グリース潤滑剤組成物及びその調製方法 |
JPH1030096A (ja) * | 1996-03-12 | 1998-02-03 | Skf Ind Trading Dev Co Bv | 導電性重合体濃縮グリース組成物 |
JP2001123191A (ja) * | 1999-10-27 | 2001-05-08 | Ntn Corp | 転がり軸受 |
JP2003042166A (ja) * | 2001-05-23 | 2003-02-13 | Nsk Ltd | 転がり軸受 |
JP2004059814A (ja) * | 2002-07-30 | 2004-02-26 | Nsk Ltd | グリース組成物及び転動装置 |
JP2004124035A (ja) * | 2002-08-02 | 2004-04-22 | Ntn Corp | グリース組成物および該グリース組成物封入軸受 |
JP2004270887A (ja) * | 2003-03-11 | 2004-09-30 | Nsk Ltd | 燃料電池システム用転がり軸受、燃料電池システム用圧送機及び燃料電池システム |
JP2005076021A (ja) * | 2003-09-04 | 2005-03-24 | Nsk Ltd | 一方向クラッチ用グリース組成物 |
WO2005075610A1 (ja) * | 2004-02-09 | 2005-08-18 | Ntn Corporation | グリース、転がり軸受、等速ジョイントおよび転動部品 |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3928214A (en) * | 1972-04-25 | 1975-12-23 | Hitachi Ltd | Grease composition |
SU827538A1 (ru) | 1978-08-14 | 1981-05-07 | Гомельский Государственный Университет | Антифрикционна металлоплакирующа смазка |
SU1253990A1 (ru) | 1985-01-07 | 1986-08-30 | Гомельский Государственный Университет | Металлоплакирующа смазочна композици |
US4915856A (en) * | 1987-07-10 | 1990-04-10 | Durafilm Corporation | Solid lubricant composition |
JP2878749B2 (ja) | 1990-01-16 | 1999-04-05 | エヌティエヌ株式会社 | オルタネータ用グリース封入転がり軸受 |
US6613721B1 (en) * | 1993-12-29 | 2003-09-02 | The Timken Company | Colloidal suspensions for use as a lubricant or additive |
FR2715401B1 (fr) * | 1994-01-26 | 1996-04-05 | Inst Francais Du Petrole | Nouveaux composés sulfonés du bismuth, leur préparation et leur utilisation notamment pour la préparation de produits colloidaux surbasés, eux-mêmes utilisables comme additifs pour lubrifiants. |
US6090755A (en) * | 1994-03-28 | 2000-07-18 | Skf Industrial Trading & Development Company, B.V. | Use of bismuth compounds in extreme pressure grease lubricant compositions for rolling bearing applications with extended service life |
JPH0841778A (ja) | 1994-08-01 | 1996-02-13 | Kanebo Ltd | 布帛の起毛装置 |
JP4215285B2 (ja) * | 1995-08-08 | 2009-01-28 | 株式会社小松製作所 | 自己潤滑性焼結摺動材およびその製造方法 |
JPH1017887A (ja) | 1996-07-08 | 1998-01-20 | Tetra:Kk | 金属塑性加工用の水性潤滑剤 |
JPH1182688A (ja) | 1997-09-04 | 1999-03-26 | Koyo Seiko Co Ltd | プーリユニット |
US6022835A (en) * | 1997-10-22 | 2000-02-08 | Shell Oil Company | Lubricating composition |
JP2000234638A (ja) | 1999-02-17 | 2000-08-29 | Koyo Seiko Co Ltd | 一方向クラッチ |
JP2000253620A (ja) | 1999-03-04 | 2000-09-14 | Nsk Ltd | オルタネータ用ローラクラッチ内蔵型プーリ装置 |
JP2001065578A (ja) | 1999-08-25 | 2001-03-16 | Nsk Ltd | グリースを封入した密封板付転がり軸受 |
JP2001247888A (ja) | 2000-03-02 | 2001-09-14 | Cosmo Sekiyu Lubricants Kk | グリース組成物 |
JP3920555B2 (ja) | 2000-10-27 | 2007-05-30 | 株式会社山武 | 接合剤および接合方法 |
US6429175B1 (en) * | 2000-11-20 | 2002-08-06 | New Age Chemical, Inc. | Lubricating grease composition |
JP4532799B2 (ja) | 2001-09-27 | 2010-08-25 | Ntn株式会社 | グリース組成物およびグリース封入軸受 |
US7265080B2 (en) * | 2002-06-12 | 2007-09-04 | Nsk Ltd. | Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system |
US7312185B2 (en) * | 2002-10-31 | 2007-12-25 | Tomlin Scientific Inc. | Rock bit grease composition |
JP4272930B2 (ja) * | 2003-06-18 | 2009-06-03 | 昭和シェル石油株式会社 | 等速ジョイント用ウレアグリース組成物 |
JP2005042102A (ja) | 2003-07-04 | 2005-02-17 | Koyo Seiko Co Ltd | 転がり軸受用グリース組成物および転がり軸受 |
JP4262541B2 (ja) | 2003-07-08 | 2009-05-13 | Ntn株式会社 | 潤滑油組成物 |
JP2005029623A (ja) | 2003-07-08 | 2005-02-03 | Ntn Corp | 潤滑油組成物 |
JP2005112901A (ja) | 2003-10-03 | 2005-04-28 | Ntn Corp | 潤滑油組成物 |
JP2005256891A (ja) | 2004-03-10 | 2005-09-22 | Ntn Corp | ファンカップリング用転がり軸受およびファンカップリング装置 |
JP4545518B2 (ja) | 2004-08-10 | 2010-09-15 | Ntn株式会社 | 車輪支持用転がり軸受ユニット |
JP4262668B2 (ja) | 2004-02-09 | 2009-05-13 | Ntn株式会社 | グリース組成物および転がり軸受 |
JP4262630B2 (ja) | 2004-04-08 | 2009-05-13 | Ntn株式会社 | 鉄道車両用軸受 |
JP2006051508A (ja) | 2004-08-10 | 2006-02-23 | Ntn Corp | 圧延機ロールネック用軸受 |
JP4653989B2 (ja) | 2004-09-27 | 2011-03-16 | Ntn株式会社 | 転がり軸受 |
JP4335080B2 (ja) | 2004-06-25 | 2009-09-30 | Ntn株式会社 | 車輪支持装置 |
-
2006
- 2006-04-20 US US11/918,566 patent/US7910525B2/en not_active Expired - Fee Related
- 2006-04-20 WO PCT/JP2006/308314 patent/WO2006112502A1/ja active Application Filing
- 2006-04-20 DE DE112006000987T patent/DE112006000987T5/de not_active Ceased
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134006A (ja) * | 1974-04-15 | 1975-10-23 | ||
JPS60149696A (ja) * | 1984-01-13 | 1985-08-07 | Idemitsu Kosan Co Ltd | グリ−ス組成物 |
JPH0841478A (ja) * | 1994-03-28 | 1996-02-13 | Skf Ind Trading Dev Co Bv | 転がり軸受用極圧グリース潤滑剤組成物及びその調製方法 |
JPH1030096A (ja) * | 1996-03-12 | 1998-02-03 | Skf Ind Trading Dev Co Bv | 導電性重合体濃縮グリース組成物 |
JP2001123191A (ja) * | 1999-10-27 | 2001-05-08 | Ntn Corp | 転がり軸受 |
JP2003042166A (ja) * | 2001-05-23 | 2003-02-13 | Nsk Ltd | 転がり軸受 |
JP2004059814A (ja) * | 2002-07-30 | 2004-02-26 | Nsk Ltd | グリース組成物及び転動装置 |
JP2004124035A (ja) * | 2002-08-02 | 2004-04-22 | Ntn Corp | グリース組成物および該グリース組成物封入軸受 |
JP2004270887A (ja) * | 2003-03-11 | 2004-09-30 | Nsk Ltd | 燃料電池システム用転がり軸受、燃料電池システム用圧送機及び燃料電池システム |
JP2005076021A (ja) * | 2003-09-04 | 2005-03-24 | Nsk Ltd | 一方向クラッチ用グリース組成物 |
WO2005075610A1 (ja) * | 2004-02-09 | 2005-08-18 | Ntn Corporation | グリース、転がり軸受、等速ジョイントおよび転動部品 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007094405A1 (ja) * | 2006-02-16 | 2007-08-23 | Ntn Corporation | グリース組成物、グリース封入軸受、および一方向クラッチ |
US9394500B2 (en) | 2006-02-16 | 2016-07-19 | Ntn Corporation | Grease composition, grease-enclosed bearing, and one-way clutch |
WO2007114135A1 (ja) * | 2006-03-29 | 2007-10-11 | Kyodo Yushi Co., Ltd. | 潤滑剤組成物 |
US9376644B2 (en) | 2006-03-29 | 2016-06-28 | Kyodo Yushi Co., Ltd. | Lubricant composition |
JP2008121704A (ja) * | 2006-11-08 | 2008-05-29 | Ntn Corp | 一方向クラッチ |
JP2010509473A (ja) * | 2006-11-13 | 2010-03-25 | エボニック ローマックス アディティヴス ゲゼルシャフト ミット ベシュレンクテル ハフツング | 機能性流体の品質管理の改善 |
JP2008163216A (ja) * | 2006-12-28 | 2008-07-17 | Idemitsu Kosan Co Ltd | グリース |
JP2009121532A (ja) * | 2007-11-13 | 2009-06-04 | Ntn Corp | 高速用転がり軸受 |
JP2013166901A (ja) * | 2012-02-17 | 2013-08-29 | Nsk Ltd | 潤滑油、及びそれを含む転がり軸受 |
WO2018101432A1 (ja) * | 2016-11-30 | 2018-06-07 | ミネベアミツミ株式会社 | グリース組成物および転がり軸受 |
JP2018090783A (ja) * | 2016-11-30 | 2018-06-14 | ミネベアミツミ株式会社 | グリース組成物および転がり軸受 |
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US7910525B2 (en) | 2011-03-22 |
US20080196995A1 (en) | 2008-08-21 |
DE112006000987T5 (de) | 2008-03-06 |
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