WO2004111476A1 - すべり軸受 - Google Patents
すべり軸受 Download PDFInfo
- Publication number
- WO2004111476A1 WO2004111476A1 PCT/JP2004/008504 JP2004008504W WO2004111476A1 WO 2004111476 A1 WO2004111476 A1 WO 2004111476A1 JP 2004008504 W JP2004008504 W JP 2004008504W WO 2004111476 A1 WO2004111476 A1 WO 2004111476A1
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- WIPO (PCT)
- Prior art keywords
- sliding
- resin
- lubricant
- bearing
- base
- Prior art date
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Classifications
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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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
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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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/201—Composition of the plastic
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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
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/06—Cam-followers
Definitions
- the present invention relates to a sliding bearing having high accuracy, excellent sliding characteristics, and excellent strength characteristics.
- a plain bearing made of a Cu-based, Cu_Sn-based, or Fe—Cu-based sintered metal material has been known.
- this plain bearing is used by impregnating lubricant into a porous porous metal bearing member (sintered oil-impregnated bearing), the lubricant is continuously supplied to the sliding part with the shaft member. It is possible to do.
- bearing members made of sintered metal can improve the processing accuracy, and are suitable for use in places where rotational accuracy is required.
- a resin plain bearing in which a resin material is mixed with a solid lubricant such as PTFE, graphite, molybdenum disulfide or the like, or a lubricating oil box is known.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-3646447 (hereinafter referred to as Patent Document 1). See ⁇ ).
- the shaft member to be supported is formed of a soft metal material such as an aluminum alloy material, there is a possibility that the sliding surface of the shaft member may be damaged.
- an object of the present invention is to provide a sliding member having high dimensional accuracy and rotational accuracy, low aggressiveness against a shaft member made of a soft metal, and excellent in mechanical strength and durability. It is to provide a bearing.
- the present invention relates to a sliding bearing including a base made of metal and a sliding layer formed on a predetermined surface of the base and having a bearing surface that slides with a shaft member, wherein the base is a mating member.
- a configuration having a contact surface that rolls or slides with a member, and that is formed of a Fe-based sintered metal material.
- the base is made of Fe-based sintered metal, high dimensional accuracy and high rotational accuracy can be obtained.
- the sliding layer formed on the predetermined surface of the base body is made of a relatively soft material such as a resin material or an elastomer, and slides with the shaft member on its bearing surface, so that the shaft member is formed of a soft metal. The sliding surface of the shaft member will not be damaged even if it is engaged.
- the Fe-based sintered metal material has higher mechanical strength than the Cu-based sintered metal material, the contact surface between the mating member and the rolling or sliding base is not easily scratched. And high durability.
- Fe type means that the content of Fe is 90% or more by weight. As long as this condition is satisfied, other components such as Cu, Sn, Zn, and C may be contained. “F e” here also includes stainless steel.
- the matrix composed of the Fe-based sintered metal material is, for example, a powder of a raw material containing the above-mentioned Fe in the above-mentioned content (a small amount of a binder or the like may be added as necessary to enhance moldability and mold release properties). ) May be formed into a predetermined shape, degreased, and fired to obtain a sintered body, which may be subjected to post-processing such as sizing as necessary. There are many internal pores inside the matrix due to the porous structure of the sintered metal, and on the surface of the matrix There are numerous surface apertures formed with internal pores open to the outside.
- the base body is formed in a cylindrical shape, a shaft member is inserted into the inner periphery, and a contact surface that rolls or rotates with a mating member is provided on the outer periphery.
- the internal pores of the matrix may be impregnated with a lubricating oil or the like by, for example, vacuum impregnation.
- the sliding layer is formed on a predetermined surface of the base, and has a bearing surface that slides on the shaft member.
- the sliding material composition forming the sliding layer is made of a resin as a base material
- the molten resin composition forming the sliding layer is exposed to a predetermined surface of the base material. It enters the internal pores of the surface layer through the pores and solidifies. As a result, the sliding layer firmly adheres to the base body surface by a kind of anchor effect, so that peeling and falling off of the driving layer due to sliding with the shaft member is suppressed, and high durability is obtained.
- the surface porosity of the surface of the base material, at least the predetermined surface on which the sliding layer is formed, is preferably 20% to 50%. If the surface porosity is less than 20%, the above-mentioned anchor effect on the sliding layer cannot be sufficiently obtained, and if the surface porosity exceeds 50%, required dimensional accuracy and mechanical strength can be obtained. Absent.
- the “surface porosity” is a ratio (area ratio) of the total area of the surface porosity to the unit area of the surface. Further, the surface porosity may be the same for the entire surface of the mother body, or may be different between the predetermined surface on which the sliding layer is formed and other surfaces.
- ⁇ the coefficient of linear expansion of the sliding material composition forming the sliding layer (° C. 1 ) ⁇ X ⁇ the thickness of the sliding layer ( ⁇ m) ⁇ is 0.15 or less. It is more preferably 0.13 or less, and further preferably 0.10 or less.If the above value is larger than 0.15, the sliding layer due to temperature change and water absorption is preferably used. Due to dimensional changes, the sliding gap between the shaft member and the shaft member fluctuates relatively large, which can easily lead to torque fluctuations and reduced rotational accuracy.
- the thickness of the layer (resin layer) is about 50 ⁇ m, and if it is thinner, molding becomes difficult, so the above value is preferably 0.003 or more, more preferably 0.03. It is preferably at least 1, more preferably at least 0.015.
- the sliding layer is preferably formed using a synthetic resin, an elastomer or the like having excellent sliding properties as a base material.
- synthetic resin include polyethylene resins such as low-density polyethylene, high-density polyethylene, and ultrahigh-molecular-weight polyethylene, and modified polyethylene.
- Ethylene resin water-crosslinked polyolefin resin, polyamide resin, aromatic polyamide resin, polystyrene resin, polypropylene resin, silicone resin, urethane resin, polytetrafluoroethylene resin, black trifluoroethylene resin, tetrafluoroethylene ⁇ Hexafluoropropylene copolymer resin, tetrafluoroethylene ⁇ Perfluoroalkylbier ether copolymer resin, vinylidene fluoride resin, ethylene ⁇ tetrafluoroethylene copolymer resin, polyacetal Resin, Polyethylene terephthalate resin, Polybutylene terephthalate resin, Polyphenylene ether resin, Polycarbonate resin, Aliphatic polyketone resin, Polyvinyl pyrrolidone resin, Polyoxazoline resin, Polyphenylene sulfide Resin, polyethersulfone resin, polyetherimide resin, polyamideimide resin, polyetheretherketone resin, thermoplastic polyimi
- polyethylene resin has extremely excellent low friction properties and is suitable as the base material.
- a polyethylene resin containing an ultrahigh molecular weight component is more preferable.
- the sliding layer may be formed, for example, in the form of a film.
- a resin that can be dissolved or dispersed in an organic catalyst can be suitably used.
- an initial condensate which becomes high in molecular weight by a curing reaction at the time of film formation can be similarly used.
- a lubricant such as a solid lubricant or a lubricating oil can be added to the above-mentioned base material to further improve the lubricity.
- solid lubricants include, for example, amino acid compound ⁇ polyoxybenzoyl polyester resin, polybenzoimidazole resin, liquid crystal resin, pulp of aramide resin, polytetrafluoroethylene, graphite, Molybdenum sulfide, boron nitride, tungsten disulfide, etc. can be used.
- lubricating oils examples include mineral oils such as spindle oil, refrigerating machine oil, turbine oil, machine oil, dynamo oil, and hydrocarbon-based synthetic oils such as polybutene oil, polyalphaolefin oil, alkylnaphthalene oil, and alicyclic compound oil. Oil or natural fats and oils and polio Ester oil, phosphate ester oil, diester oil, polyglycol oil, silicone oil, polyphenylene oleate / le oil, anorex / resiphenyl eneole oil, anole benzene oil, fluorinated oil, etc. Commonly used lubricating oils such as non-hydrocarbon synthetic oils can be used.
- the following problems may occur. That is, when a sliding layer formed of a sliding material composition containing a lubricant such as a lubricating oil is used (when sliding with a sliding partner material), the sliding layer gradually wears out and the lubricating oil layer is formed. When it appears on the sliding surface, the lubricating oil seeps onto the sliding surface. Since it is difficult to control the degree of oozing of the lubricating oil, it is difficult to stably supply the lubricating oil to the sliding surface. In addition, the holes after the lubricating oil seeps out may cause a decrease in the strength of the sliding layer. Therefore, in the present invention, a lubricant is blended with the base material of the sliding material composition for forming the sliding layer, and further porous silica impregnated with the lubricant is blended.
- a lubricant is blended with the base material of the sliding material composition for forming the sliding layer, and further porous silica impregnated with the lubricant is
- the lubricant can be continuously supplied to the sliding surface, so that excellent friction and wear characteristics can be stably provided.
- a lubricant is added to the base material, and the amount of the lubricant contained in the sliding material composition is increased by compounding a porous silicide impregnated with a lubricant (particularly a lubricating oil).
- the lubricant is retained in the space inside the porous silica, so that compared with the case where a large amount of the lubricant is simply blended, Especially when the base material is resin, the screw slips during injection molding, etc., the measurement becomes unstable, the cycle time becomes longer, the dimensional accuracy is difficult to obtain, and the lubricant adheres to the mold surface and the molding surface To avoid problems such as poor finish (4) Even if there is some problem in the compatibility between the base material and the lubricant, the space in the porous silica can be used in combination by impregnating the lubricant with the lubricant, etc. Many benefits are obtained.
- the porous silica may be any one that can impregnate and retain a lubricant.
- Various materials can be used, such as, for example, precipitated silica (eg, having a primary particle diameter of 15 nm or more).
- precipitated silica eg, having a primary particle diameter of 15 nm or more.
- spherical porous silica having continuous pores is preferred, and particularly spherical porous silica is more preferred.
- the term “spherical” refers to a sphere having a ratio of the minor axis to the major axis of 0.8 to 1.0, and the term “spherical” refers to a sphere closer to a true sphere than a sphere.
- the sliding partner Since the spherical porous silicon force is broken by the shearing force on the sliding surface when it is exposed on the sliding surface, even if the sliding partner is a soft material (including a soft metal), the sliding partner cannot be used. No need to hurt.
- a reinforcing material to the sliding material composition in which these fillers are mixed with the base material, if the lubricant and the reinforcing material are individually compounded and kneaded, the reinforcing material The lubricant is localized at the interface between the base material and the base material (for example, synthetic resin), and the reinforcing effect of the reinforcing material is not sufficiently exhibited.
- the lubricant and the porous silicide, especially the spherical porous silicide impregnated with the lubricant are kneaded with the reinforcing material, the lubricant localized at the interface between the reinforcing material and the base material is greatly reduced. Since it can be reduced, a desired reinforcing effect can be obtained.
- the spherical porous silica When using the spherical porous silica, it is necessary to pay attention to its size. For example, when the average particle diameter of the spherical porous silica is less than 0.5 // m, the amount of the lubricant impregnated is not sufficient, and problems arise in workability. If the average particle size exceeds 100 ⁇ m, the dispersibility in the molten sliding material composition is poor. In addition, the shear force applied during kneading of the sliding material composition in the molten state may cause the aggregates of the primary particles to burst and may not be able to maintain a spherical shape.
- the average particle diameter of the spherical porous silica is 0.5 ⁇ m to 100 ⁇ .
- ease of handling (workability) ⁇ Considering the sliding characteristics, those having a thickness of 1 1 to 20 / ⁇ m are more preferable.
- the spherical porous silica having the above average particle diameter is obtained, for example, by emulsifying an aqueous alkaline silicate solution containing an alkaline metal salt or an alkaline earth metal salt in an organic catalyst and gelling with carbon dioxide gas. Can be generated.
- the primary particle diameter of the spherical porous silica obtained here is 3 to 8 nm.
- the porous silica preferably has a specific surface area of 200 to 900 m 2 / g from the viewpoint of high oil absorption (high lubricant retention), and 300 to 800 m 2 / g. m 2 Z g is more preferable. Further, the pore area may be 1 to 3.5 ml / g, and the pore diameter may be 5 to 30 nm, more preferably 20 to 30 nm.
- the oil absorption is preferably 150 to 400 ml Zl 100 g, and more preferably 300 to 400 ml Zl 100 g. In addition, considering use in a normal atmosphere, it is preferable that the pore volume and the oil absorption are maintained at 90% or more before immersion even when immersed in water and dried again. .
- the specific surface area and the pore volume are values measured by a nitrogen adsorption method, and the oil absorption is a value measured according to JIS K 5101.
- the porous silica used in the present invention is very spherical and has an average particle diameter, specific surface area, pore area, pore diameter, and oil absorption within the above ranges.
- Non-spherical porous silica can be used without any problem as long as the average particle diameter, specific surface area, oil absorption and the like are within the above ranges.
- the average particle diameter is about 1000 m, it can be used without any problem depending on the compatibility with the base material and the mixing ratio.
- it can be used by subjecting porous silica to various surface treatments regardless of whether it is organic or inorganic.
- porous porous force examples include Sansfaea manufactured by Asahi Glass Co., Ltd., Gotopol manufactured by Suzuki Yushi Kogyo Co., Ltd., and Silosfair manufactured by Fuji Silicia Corporation.
- microids manufactured by Tokai Chemical Industry Co., Ltd. can be used as porous silica.
- Various lubricants such as lubricating oils can be used as exemplified above. Among them, the heat resistance to the kneading of the sliding material composition (particularly the resin composition) and the molding temperature is preferable.
- silicone oil is used. According to this, the silicone oil can be easily held inside the porous silica, so that a higher oil holding property can be obtained.
- silicone oil either a silicone oil having no functional group or a silicone oil having a functional group can be used.
- the porous silica contains 1 to 20 volumes in the sliding layer. / 0 is preferably included. Considering the effect of retaining the lubricant and the strength, the content is more preferably 2 to 15% by volume. Further, the content of the lubricant in the sliding layer is preferably 5 to 40% by volume. If the content of the lubricant is less than 5% by volume, the lubricating effect of the lubricant will not be sufficient, and if it exceeds 40% by volume, the amount of the base material will decrease and the strength may be significantly reduced. That's why.
- the blend weight can be calculated by multiplying the value of the volume% of each blend by the density.
- the volume% of the porous silica is a ratio obtained on the assumption that non-porous silica was blended. That is, it is calculated using the true specific gravity, not the bulk specific gravity of the porous silica. For this reason, the actual capacity ratio in a state where there are holes communicating with the inside becomes a larger value.
- an appropriate filler may be added to the base material in order to improve friction and wear characteristics and to reduce the coefficient of linear expansion.
- carbon fiber, metal fiber, graphite powder, zinc oxide, or the like may be added for the purpose of improving the thermal conductivity of the sliding layer.
- carbonates such as lithium carbonate and calcium carbonate
- phosphates such as lithium phosphate and calcium phosphate may be blended.
- these fillers can be used in combination of two or more.
- additives that can be widely applied to general synthetic resins may be used in combination as long as the effects of the present invention are not impaired.
- industrial additives such as a release agent, a flame retardant, an antistatic agent, a weather resistance improving agent, an antioxidant, and a coloring agent can be appropriately added.
- a chemical or physical treatment such as an annealing treatment to improve the properties.
- the above-mentioned sliding material compositions especially for the kneading of the resin composition, it has been well known from the past.
- a method is available. For example, after the resin composition is mixed by a mixer such as a Henschel mixer, a pole mill, a tamper mixer, or the like, the mixture is supplied to an injection molding machine or a melt extruder (for example, a twin-screw extruder) having good melt mixing properties. May be preliminarily melt-mixed using a heat roller, a kneader, a panbury mixer, a melt extruder or the like, or may be subjected to vacuum molding, blow molding, foam molding, multilayer molding, heat compression molding, or the like.
- the order of kneading of the base material (here, resin), porous silica, and the lubricant is not particularly limited, but preferably, the porous silica and the lubricant are kneaded in advance to form a porous material. It is preferable that the lubricant is mixed with the base material after the silica is made to contain the lubricant. Further, since porous silica easily absorbs moisture, it is preferable to dry the porous silica before kneading.
- the drying means is not particularly limited, and drying in an electric furnace, vacuum drying, or the like can be employed.
- porous silica impregnated with a lubricant is mixed with a base material made of a synthetic resin and mixed with a general coating liquid.
- a general-purpose coating treatment means can be used.
- various treatment means such as a spray method, an electrostatic coating method, and a fluid immersion method can be used.
- the lubricant When the porous silica and the lubricant are preliminarily mixed, if the viscosity of the lubricant is high, the lubricant hardly permeates into the spherical porous silica. In this case, the lubricant is diluted with an appropriate solvent in which the lubricant dissolves, and the diluted solution is allowed to penetrate into the porous silica, and then gradually dried to evaporate the solvent to impregnate the lubricant into the porous silica. Can be adopted.
- the lubricant is a lubricating oil
- the lubricant is liquid at room temperature, if the viscosity is high, it is heated to an appropriate temperature to reduce the viscosity of the lubricant.
- a method of impregnation or the like can also be used effectively. It is also possible to mix a liquid resin such as an unsaturated polyester resin with an oil-containing material of spherical porous silica, impregnate various woven fabrics, and use a laminate of the woven fabrics as a sliding layer. You.
- ADVANTAGE OF THE INVENTION while having high dimensional accuracy and rotational accuracy, it is made of soft metal. It comes into contact with the contact surface 5a of the member 5, and rolls or slides on the contact surface 5a. At this time, the sliding bearing 2 rotates with respect to the shaft member 1, and this rotation is rotatably supported by sliding of the sliding layer 2b on the shaft member 1. That is, of the driving layer 2 b, a region formed on the outer peripheral surface 2 a 1 of the base 2 a is in contact with the outer peripheral surface 1 a of the shaft member 2, and the radial bearing surface 2 b 1 for supporting the radial load.
- the sliding layer 2b of the plain bearing 2 has a configuration in which only the radial bearing surface 2b1 is provided.In addition to the radial bearing surface 2b1, only one of the thrust bearing surfaces 2b2 and 2b3 is used. It is good also as composition which has. That is, the sliding layer 2b may be formed only on the inner peripheral surface 2a1 of the base 2a, or may be formed from the inner peripheral surface 2a1 of the base 2a to one end surface 2a2. .
- FIG. 1 is a sectional view showing a cam follower according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing the sliding bearing according to the embodiment of the present invention.
- FIG. 1 shows a cam follower according to the embodiment.
- the cam follower includes a shaft member (stud) 1 that is cantilevered at one end (not shown), and a slide bearing 2 mounted on the outer periphery of the other end of the shaft member 1.
- the shaft member 1 is formed of, for example, a soft metal material such as brass or an aluminum alloy, and has, at the other end, an outer peripheral surface 1a having a small diameter and a shoulder 1b.
- the plain bearing 2 has, for example, an Fe content of 90 wt. /. It is composed of the cylindrical base 2a made of the above Fe-based sintered metal material, and the sliding layer 2b formed from the inner peripheral surface 2a1 to the end surface 2a2 of the base 2a.
- the sliding layer 2b is formed of a sliding material composition in which a base material such as polyethylene resin is mixed with a lubricant such as silicone oil and spherical porous silica impregnated with the lubricant.
- the sliding material composition (resin composition) is formed by insert molding on the surface of the base 2a. No outer layer is formed on the outer peripheral surface 2a3 of the base 2a.
- the above-mentioned lubricant may be impregnated in the internal pores of the base 2a.
- the sliding bearing 2 is detached from the outer peripheral surface 1 a of the shaft member 1, and is fitted to the shoulder 1 b of the shaft member 1 and the thrust fitted to the outer peripheral surface 1 a of the shaft member 2.
- the movement in the axial direction is restricted by the torsion 3 and the retaining ring 4.
- the thrust fastener 3 is formed of a resin material having poor sliding characteristics
- the retaining ring 4 is formed of a soft metal material such as aluminum alloy.
- Sliding axis 3 ⁇ 4 2 is the outer peripheral surface 2 a 3 of the base 2 a
- Lubromer L500 manufactured by Mitsui Petrochemical Co., Ltd. was used as a polyethylene resin.
- KF96H-60000 manufactured by Shin-Etsu Silicone Co., Ltd. was used as a silicone oil
- Sansfair H33 manufactured by Asahi Glass Co., Ltd. was used as a porous sily.
- a mixture of porous silica and silicone oil in a mixing ratio of 1: 2.76 (weight conversion) (31.6 wt%) and a polyethylene resin (68.4 wt%) were extruded using a twin-screw extruder. Pellets were produced by melt-kneading.
- a bearing base having a predetermined shape was fixed in a mold, and insert molding was performed using the above oil-containing pellet.
- the mold temperature was 100 ° C.
- the molding temperature was 210 ° C.
- the injection pressure was 140 MPa.
- the surface pressure during the test is IMPa (converted to the projected area), the peripheral speed is 3 m / min, the test temperature is 30 ° C, and the test time is 120 h.
- the measurement items were the specific wear of the test bearing, the presence or absence of shaft wear, and the dynamic friction coefficient at the end of the test.
- the gap between the shaft member and the plain bearing was set to 20 jum (measured at 20 ° C).
- the outer diameter side of the sliding bearing was restrained with sintered metal, The inner diameter was changed from 110 ° C to 60 ° C so that only the inner diameter could be changed, and the degree of change in the inner diameter was measured. C and the dimensional change at 60 ° C were determined). Measure the dimensional change of the inner diameter of the test piece and the dimensional change of the shaft member at each temperature. If the gap is 0 to 30 / zm: ⁇ , the gap is less than 0 (stickiness on the shaft) or 30 In the case of ⁇ m or more: X was judged.
- the gap between the resin layer and the interposed shaft member made of A5506 was measured at 110 ° C and 60 ° C.
- the initial gap was set to 15 ⁇ .
- the dimensional change of the shaft member was 15.2 ⁇ m (at ⁇ 10 ° C) and 7 m (at 60 ° C) (the coefficient of linear expansion of the shaft material was 2. 2 X 10- ° C).
- a composite plain bearing of ⁇ 8 mm ⁇ 14 mm ⁇ t 5 mm was produced in the same manner as in Example 1 except that the thickness of the resin layer was changed (770 ⁇ ).
- a test was performed under the above conditions using the obtained composite plain bearing. Table 1 shows the test results.
- a composite plain bearing of ⁇ 8 mmX14 mmXt5 mm was produced in the same manner as in Example 1 except that the thickness of the resin layer was varied (900 / xm). A test was performed under the above conditions using the obtained composite plain bearing. Table 1 shows the test results.
- the bearing body of the composite plain bearing manufactured in Example 1 was impregnated with silicone oil (KF966H, manufactured by Shin-Etsu Silicone Co., Ltd.). Using this, a test was performed under the above conditions. Table 1 shows the test results.
- the bearing body of the composite plain bearing manufactured in Example 8 was impregnated with silicone oil (KF966 ⁇ manufactured by Shin-Etsu Silicone Co., Ltd.). Using this, a test was performed under the above conditions. Table 1 shows the test results.
- Example 2 A ⁇ 8 mm X ⁇ 14 mm Xt 5 mm sliding bearing was manufactured using only the resin composition used in Example 1, and a friction / wear test and various evaluation tests were performed under the same conditions as in Example 1. Was. Table 1 shows the test results.
- Example 1 The same content as in Example 1 except that the resin layer was formed of polyethylene resin alone (Mitsui Petrochemical Co., Ltd .: Lubmar L500), a composite sliding bearing of ⁇ 8 mmX ⁇ 14 mmX t5 mm (resin layer Wall thickness: 250 ⁇ ). Using the obtained composite plain bearing, a test was performed under the above conditions. Table 1 shows the test results.
- the gap with the shaft member becomes significantly smaller than the initial value, This is not preferable because cracks occur.
- SUS304 and a resin layer were used together as in Comparative Example 4, the surface of SUS304 was smooth and the adhesion to the resin layer was weak, so that the interface was peeled off due to molding shrinkage. If there are no irregularities on the surface of the metal layer, it is difficult to obtain a composite of metal and resin.
- the adhesive force with the resin layer is weak as in the case of using SUS304 in Comparative Example 4, so the interface due to molding shrinkage Then peeling occurred.
- the sliding bearing of the present invention is suitable, for example, for a cam follower, and is particularly suitable for a cam follower for office equipment that requires rotational accuracy.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/561,662 US7670055B2 (en) | 2003-06-10 | 2004-06-10 | Sliding bearing |
CN2004800162797A CN1806131B (zh) | 2003-06-10 | 2004-06-10 | 滑动轴承 |
KR1020057022289A KR101081808B1 (ko) | 2003-06-10 | 2005-11-22 | 슬라이딩 베어링의 제조방법 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2003165388 | 2003-06-10 | ||
JP2003-165388 | 2003-06-10 | ||
JP2004168902A JP2005024094A (ja) | 2003-06-10 | 2004-06-07 | すべり軸受 |
JP2004-168902 | 2004-06-07 |
Publications (1)
Publication Number | Publication Date |
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WO2004111476A1 true WO2004111476A1 (ja) | 2004-12-23 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/008504 WO2004111476A1 (ja) | 2003-06-10 | 2004-06-10 | すべり軸受 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7670055B2 (ja) |
JP (1) | JP2005024094A (ja) |
KR (1) | KR101081808B1 (ja) |
CN (1) | CN1806131B (ja) |
TW (1) | TWI322857B (ja) |
WO (1) | WO2004111476A1 (ja) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0978522A (ja) * | 1995-09-14 | 1997-03-25 | Howa Mach Ltd | 転圧ローラの前後フレーム連結機構 |
JPH11131198A (ja) * | 1997-10-30 | 1999-05-18 | Daido Steel Co Ltd | 低摩擦焼結部材およびその製造方法 |
JP2002295471A (ja) * | 2001-03-28 | 2002-10-09 | Ntn Corp | 複合滑り軸受およびガイドローラ |
JP2002364647A (ja) * | 2001-06-06 | 2002-12-18 | Ntn Corp | 含油摺動材およびすべり軸受 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6069324A (ja) * | 1983-09-22 | 1985-04-20 | Nippon Seiko Kk | すべり軸受 |
JPS6091027A (ja) * | 1983-10-26 | 1985-05-22 | Kyowa Sangyo Kk | 自在軸継手の軸受装置 |
DE3640328A1 (de) * | 1985-05-31 | 1988-06-09 | Glyco Metall Werke | Schichtwerkstoff fuer gleitlagerelemente mit antifriktionsschicht aus einem lagerwerkstoff auf aluminiumbasis |
DE3714987A1 (de) * | 1987-05-06 | 1988-11-17 | Glyco Metall Werke | Universalgelenk |
JPH03107617A (ja) * | 1989-09-18 | 1991-05-08 | Du Pont Japan Ltd | すべり軸受 |
JP2921024B2 (ja) * | 1990-05-09 | 1999-07-19 | 日本精工株式会社 | 滑り又は転がり部材、この部材を用いた滑り軸受,転がり軸受、及びローラロッカアーム用滑り軸受 |
JPH04160224A (ja) * | 1990-10-22 | 1992-06-03 | Nippon Seiko Kk | すべり軸受 |
CA2069988C (en) * | 1991-05-31 | 1997-03-04 | Yoshikazu Fujisawa | Slide member with surface composed of pyramidal microprojections |
ES2086225T3 (es) * | 1992-04-09 | 1996-06-16 | Doetsch Neo Plastic | Procedimiento para la fabricacion de un cojinete de friccion con forma de vaina, y cojinete de friccion fabricado segun este procedimiento. |
DE4311634A1 (de) * | 1992-04-09 | 1993-10-14 | Rabe Thore | Verfahren zur Herstellung eines hülsenförmigen Gleitlagers und nach diesem Verfahren hergestelltes Gleitlager |
US5501526A (en) * | 1993-06-15 | 1996-03-26 | Nsk Ltd. | Sliding bearing |
US5531079A (en) * | 1993-10-07 | 1996-07-02 | Tatematsu; Susumu | Bearing structure for auger-type ice making machines |
JP3585693B2 (ja) * | 1993-12-28 | 2004-11-04 | 三菱マテリアル株式会社 | 焼結含油軸受 |
US6235413B1 (en) * | 1995-03-31 | 2001-05-22 | Honda Giken Kogyo Kabushiki Kaisha | Slide surface construction and process for producing the same |
JP3582895B2 (ja) * | 1995-07-14 | 2004-10-27 | Ntn株式会社 | 焼結含油軸受及びその製造方法 |
JPH09112560A (ja) * | 1995-10-20 | 1997-05-02 | Ntn Corp | 焼結含油軸受 |
US6377770B1 (en) * | 1996-07-09 | 2002-04-23 | Ntn Corporation | Sliding member sliding bearing unit and developing apparatus |
JP3292445B2 (ja) * | 1996-07-30 | 2002-06-17 | エヌデーシー株式会社 | 耐摩耗性に優れる摺動材料 |
JP3168538B2 (ja) * | 1997-04-19 | 2001-05-21 | チャン リー ウー | 滑りベアリング及びその製造方法 |
JPH11223219A (ja) * | 1998-02-06 | 1999-08-17 | Daido Metal Co Ltd | すべり軸受 |
JP2001027251A (ja) * | 1999-07-14 | 2001-01-30 | Minebea Co Ltd | 軸受とその製造方法 |
JP3361292B2 (ja) * | 1999-08-20 | 2003-01-07 | 日本ピラー工業株式会社 | 免震装置の滑り支承 |
JP2001240933A (ja) * | 2000-02-29 | 2001-09-04 | Daido Metal Co Ltd | 銅系摺動材料、その製造方法およびすべり軸受材料、その製造方法 |
JP3883179B2 (ja) * | 2001-05-09 | 2007-02-21 | 日立粉末冶金株式会社 | 焼結滑り軸受の製造方法 |
US6648515B2 (en) * | 2002-02-28 | 2003-11-18 | Federal-Mogul World Wide, Inc. | Edge welded sliding bearing |
JP2003278756A (ja) * | 2002-03-27 | 2003-10-02 | Daido Metal Co Ltd | すべり軸受 |
-
2004
- 2004-06-07 JP JP2004168902A patent/JP2005024094A/ja active Pending
- 2004-06-10 CN CN2004800162797A patent/CN1806131B/zh not_active Expired - Fee Related
- 2004-06-10 WO PCT/JP2004/008504 patent/WO2004111476A1/ja active Application Filing
- 2004-06-10 TW TW093116641A patent/TWI322857B/zh not_active IP Right Cessation
- 2004-06-10 US US10/561,662 patent/US7670055B2/en not_active Expired - Fee Related
-
2005
- 2005-11-22 KR KR1020057022289A patent/KR101081808B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0978522A (ja) * | 1995-09-14 | 1997-03-25 | Howa Mach Ltd | 転圧ローラの前後フレーム連結機構 |
JPH11131198A (ja) * | 1997-10-30 | 1999-05-18 | Daido Steel Co Ltd | 低摩擦焼結部材およびその製造方法 |
JP2002295471A (ja) * | 2001-03-28 | 2002-10-09 | Ntn Corp | 複合滑り軸受およびガイドローラ |
JP2002364647A (ja) * | 2001-06-06 | 2002-12-18 | Ntn Corp | 含油摺動材およびすべり軸受 |
Also Published As
Publication number | Publication date |
---|---|
TW200506237A (en) | 2005-02-16 |
JP2005024094A (ja) | 2005-01-27 |
KR101081808B1 (ko) | 2011-11-09 |
CN1806131B (zh) | 2012-03-21 |
KR20060019550A (ko) | 2006-03-03 |
TWI322857B (en) | 2010-04-01 |
CN1806131A (zh) | 2006-07-19 |
US20060251348A1 (en) | 2006-11-09 |
US7670055B2 (en) | 2010-03-02 |
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