JP2007084719A - Bearing resin material and resin rolling bearing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a bearing resin material having excellent compressive deformation resistance and to provide a rolling bearing having excellent load resistance. <P>SOLUTION: The bearing resin material is obtained by mixing a rein with a fullerene. The average intermolecular distance L represented by formula (1) (n is mol concentration [mol/L] of mixed fullerene; N<SB>A</SB>is Avogadro's number; R is diameter [nm] of fullerene molecule) of fullerene in the resin is 3nm-12nm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a resin material for bearings in which fullerenes are blended with resin, and a resin rolling bearing using the resin material for bearings.

  Usually, the mechanical properties of fiber reinforced materials such as glass fibers and carbon fibers that are higher than micrometer order and reinforced resins that use granular fillers that are higher than micrometer order are remarkably improved. However, when used for rolling bearing races or raceways, peeling from the filler interface due to compression fatigue occurs on the raceway surface, resulting in a short life. For this reason, a resin to which a reinforcing material is added cannot usually be used, and the resin alone is applied to the resin rolling bearing, which is inferior in load resistance. Conventional plastic rolling bearings are superior in chemical resistance and corrosion resistance compared to metal rolling bearings, so they are used as rolling bearings for special environments, especially in corrosive environments, but they are also resistant to load (compressible deformation resistance). Therefore, the application range is relatively narrow, and an improvement in load resistance is desired.

Carbon nanotubes (hereinafter referred to as CNTs), which are nano-sized substances, have high aspect ratios, excellent mechanical strength, and excellent conductivity, and are therefore expected as resin material reinforcements and conductive materials. However, due to the large cohesive strength of CNTs or the strong entanglement of fibers, there is a problem that it is easy to form aggregates and it is difficult to uniformly disperse in the resin, and at present it is difficult to apply as a material for resin rolling bearings. is there.
On the other hand, fullerenes do not have anisotropy, or have very little anisotropy, and have a nano-order size. Therefore, unlike CNTs with anisotropy (high aspect ratio), they have a mechanical reinforcing effect. It is thought that it cannot be expected. Moreover, since it does not have electrical conductivity, there are very few known knowledge about the crystalline thermoplastic resin which mix | blended fullerene compared with CNT.
As knowledge about crystalline thermoplastic resins blended with fullerenes,
(1) A method of blending 0.1 to 2000 ppm fullerenes with a crystalline thermoplastic resin in order to increase the crystallization rate (Patent Document 1),
(2) A method of blending 0.25 to 50 parts by weight of fullerenes with respect to 100 parts by weight of a crystalline thermoplastic resin mainly for the purpose of improving heat resistance (Patent Document 2),
(3) A method of controlling the concentration in the fullerene-containing amorphous thermoplastic resin to 1000 ppm or less, mainly for the purpose of improving heat resistance (Patent Document 3),
(4) A method using a fullerene-containing thermosetting resin mainly for the purpose of improving heat resistance (Patent Document 4),
(5) To the extent that a method of blending fullerenes for the purpose of controlling the thickness of the skin layer during injection molding in a thermoplastic resin (Patent Document 5) is known.

Since Patent Document 1 is a method for increasing the crystallization rate, a resin having a high crystallization rate, such as a polyacetal (hereinafter referred to as POM) resin, a polyarylene sulfide (PAS) resin, a polyether ketone (PEK, PEEK). In fact, a substantial effect cannot be expected from a resin based on its principle. In Patent Document 1, since only two levels of carbon cluster concentrations of 0 ppm and 200 ppm have been evaluated, it is unclear whether or not the effect disclosed in a wide range of 0.1 to 2000 ppm is manifested. No specific effect is shown regarding the properties.
Patent Documents 2 to 4 are basically methods for improving heat resistance, and no evaluation results are shown for mechanical properties including compression deformability and compression fatigue properties (peeling resistance).
Patent Document 5 is a skin layer control method, and even in this patent, nothing is mentioned about compression deformability and compression fatigue characteristics.
In addition, fiber reinforcement which mix | blends glass fiber and carbon fiber is performed as a method of improving the mechanical characteristic of resin normally. The fiber reinforcement by these fibers dramatically improves the compression characteristics of the resin, but when using fibers of micro-order or higher such as these, in applications where local repeated compression is applied, the filler interface is reduced by compression fatigue. Cracks that originate from the point extend and delamination occurs.
Japanese Patent Laid-Open No. 10-310709 JP 2004-182768 A JP 2004-182771 A JP 2004-182775 A JP 2004-167801 A

  The present invention has been made to cope with such a situation, and an object of the present invention is to provide a resin material for a bearing excellent in compression deformation resistance, particularly compression permanent deformation resistance, and a resin rolling bearing excellent in load resistance. And

ここで、ｎはフラーレンの配合モル濃度[mol/L]を、Ｎ_Ａ はアボガドロ数を、Ｒはフラーレン分子の直径[nm]をそれぞれ表わす。
上記フラーレン類が、酸基や水酸基により化学修飾されていないフラーレン類であることを特徴とする。 The resin material for bearings of the present invention is a resin material for bearings obtained by blending fullerenes with a resin, and the average intermolecular distance L of the fullerenes in the resin material represented by the following formula (1) is 3 It is characterized by being nm to 12 nm.

Here, n a compounding molar concentration [mol / L] of the fullerene, N _A is Avogadro's number, R represents respectively a diameter [nm] of the fullerene molecule.
The fullerenes are fullerenes that are not chemically modified with an acid group or a hydroxyl group.

The fullerenes are characterized by containing at least one fullerene selected from C ₆₀ and C ₇₀ as a main component.
The resin is a thermoplastic resin.
The thermoplastic resin is a thermoplastic resin that can be melt kneaded at 150 ° C. or higher.
The thermoplastic resin is a crystalline resin.
The thermoplastic resin is a thermoplastic resin including at least one group selected from an ether group, a ketone group, and an aromatic group.

The resin rolling bearing of the present invention is a resin rolling bearing comprising a bearing ring or a bearing disc composed of an inner ring and an outer ring, a rolling element, and a cage. At least one member selected from the container is molded using the bearing resin material described above.
A member other than a resin member formed using a resin material is a corrosion-resistant member.

The bearing resin material of the present invention is a material in which fullerenes, which are nanoparticles, are blended with a resin, and the intermolecular distance of fullerenes is controlled within a predetermined range by adjusting the blending molar concentration of fullerenes. It can be used as a resin material for bearings excellent in compression deformation resistance, particularly compression permanent deformation resistance, and a resin rolling bearing excellent in load resistance can be obtained using this resin material.
Moreover, the resin rolling bearing of this invention can be utilized suitably for the use which cannot perform rust prevention processing, such as underwater, without lubrication.

The fullerene blended in the resin in the present invention is a carbon molecule having various polyhedral structures which are composed of a carbon 5-membered ring and a 6-membered ring and are closed in a spherical shape. The fullerene is a third carbon allotrope following graphite and diamond. W. Kroto and R.K. E. It is a new carbon material discovered by Smalley et al. As a typical molecular structure, C ₆₀ of a so-called soccer ball-like structure in which ₆₀ carbon atoms constitute a spherical truncated icosahedron composed of 12 five-membered rings and 20 six-membered rings. Similarly, there are C ₇₀ composed of ₇₀ carbon atoms, and higher fullerenes having a larger number of carbon atoms such as C ₇₆ , C ₇₈ , C ₈₂ , C ₈₄ , C ₉₀ , C ₉₄ , C _96, etc. . Of these, C ₆₀ and C ₇₀ are typical fullerenes. Moreover, a multimer is obtained by making these react. In the present invention, any fullerene can be used, either spherical or multimeric.

The fullerene production method includes a laser evaporation method, a resistance heating method, an arc discharge method, a thermal decomposition method, etc., and specifically disclosed in, for example, Japanese Patent No. 2802324, which is under reduced pressure or inactive. Fullerenes are obtained by gas existence, generation of carbon vapor, cooling and cluster growth.
On the other hand, in recent years, a combustion method has been put to practical use as an economical and efficient mass production method. As an example of the combustion method, a device in which a burner is installed in a decompression chamber is used, and a hydrocarbon raw material and oxygen are mixed and supplied to the burner while the system is ventilated with a vacuum pump to generate a flame. . Then, the soot-like substance produced | generated by the said flame is collect | recovered with the collection | recovery apparatus provided downstream. In this production method, fullerene is obtained as a solvent-soluble component in soot and is isolated by solvent extraction, sublimation or the like. The obtained fullerene is usually a mixture of C ₆₀ , C ₇₀ and higher order fullerene, and can be further purified to isolate C ₆₀ , C _{70 and the} like.
The fullerene used in the present invention is not particularly limited in its structure and production method, but those having a carbon number of C ₆₀ or C ₇₀ or a mixture thereof are particularly preferred.

Fullerenes represented by C ₆₀ and C ₇₀ are carbon-based molecules having sublimation properties (sublimation temperature of 600 ° C. or higher). For this reason, although it becomes an aggregate at normal temperature, the cohesion force becomes weak by heating. In addition, since fullerenes are lipophilic, the dispersibility with respect to resin is fundamentally excellent.
Fullerenes in the resin (Reference: C ₆₀ molecule diameter of about 0.7 to 0.8 mm) is to average intermolecular distance when it is assumed that monodispersed is a predetermined range (3 to 12 mm), fullerenes resin When blended, it was found that the agglomeration of fullerenes generated during melt-kneading, resin solidification, and heat treatment can be prevented, and only the advantage of the excellent addition effect of fullerenes can be utilized. According to this method, the amount of permanent deformation does not occur due to compressive deformability, in particular, the amount of permanent deformation due to the destruction of the aggregates of fullerenes, and the amount of permanent deformation can be reduced. In addition, since the size of fullerenes is as small as 1 nm or less, stress concentration does not occur at the fullerenes / resin interface even when subjected to local compression, and the original compression fatigue properties of the resin must be maintained. Is possible. In addition, in the conventional fiber reinforcement method, although the compressive deformability is improved, the compression fatigue property is remarkably deteriorated.

体積Ｖのバルク中に存在する粒子数をＮとすると、一辺上にある平均粒子数はＮ^1/3 個となる。したがって、粒子−粒子の平均中心間距離χ[cm]は式（６）で表わされる。

Ｖ＝1 cm³ とし、粒子濃度をn[mol/L]、アボガドロ数をＮ_Ａ とすると、粒子−粒子の平均中心間距離χ[cm]は式（７）で表わされる。

したがって、樹脂中でフラーレン類が単分散した場合の平均分子間距離Ｌ［ nm ］は以下のように規定すると、樹脂分を溶媒とするフラーレン類のモル濃度ｎ［ mol/L ］、アボガドロ数Ｎ_A、フラーレン類の分子直径Ｒ［ nm ］を用いた式（１）で表わされる。なお、式（１）で表わされる平均分子間距離Ｌは、固体樹脂中にフラーレン分子を最密充填構造の位置に均一に配置した場合の分子間距離である。またフラーレン類のモル濃度は、常温での樹脂固体中に分散したフラーレンについて、樹脂分を溶媒として算出する。

本発明において平均分子間距離Ｌは、3〜12 nm 、好ましくは 4〜8 nm である。
本発明の軸受用樹脂材料は、フラーレン類を配合していない軸受用樹脂材料に比べて、主に耐圧縮特性、特に耐塑性変形（永久変形）性が向上する。式（１）で計算される平均分子間距離Ｌが 3 nm 未満の場合、フラーレン類の分子直径Ｒが 1 nm 程度であることから、隣接するフラーレン分子間距離がフラーレン分子 3 個以下という極めて近い距離となるため、添加したフラーレン分子どうしが溶融混練や成形、または熱処理中に凝集しやすく、本発明の効果である優れた耐圧縮性は得られず、逆に軸受用樹脂材料が圧縮を受けた場合、フラーレン分子の凝集体の破壊、フラーレン分子の持つ可塑化効果などにより、耐圧縮性が悪化する場合もある。
平均分子間距離Ｌが、12 nm よりも大きい場合、添加されたフラーレン類が非常に低濃度となる（例えばフラーレン分子直径を 1 nm とした場合、300 ppm となる）ため、十分なフラーレン類の添加効果が得られない。 The guidance method of Formula (1) is demonstrated based on the figure shown below. This figure is a schematic diagram showing the shape of a bulk formed by a resin and fullerene molecules blended in the resin. As shown in this schematic diagram, the bulk shape is a rhombic hexahedron with a rhombus composed of two equilateral triangles as the bottom and the same height as the regular triangle pyramid composed of four equilateral triangles. The intermolecular distance is determined from the number of fullerene molecules present in the bulk formed by the resin and the uniformly mixed fullerene molecules.
The height h of the bulk that is the rhomboid hexahedron is the height of a regular triangular pyramid with the length of one side a, and is represented by the formula (2),
The bottom area S of the bulk is represented by the formula (3),
The volume V of the bulk is expressed by the formula (4),
From Formula (2) and Formula (4), one side a of the bulk is expressed by Formula (5).

When the number of particles existing in the bulk of the volume V is N, the average number of particles on one side is N ^1/3 . Accordingly, the average center-to-center distance χ [cm] of the particles is expressed by the formula (6).

And V = 1 cm ^3, a particle density n [mol / L], and the number of Avogadro and N _A, particles - average inter center of the particle distance chi [cm] is represented by the formula (7).

Accordingly, when the average intermolecular distance L [nm] when the fullerenes are monodispersed in the resin is defined as follows, the molar concentration n [mol / L] of the fullerenes using the resin component as a solvent, the Avogadro number N _A is represented by the formula (1) using the molecular diameter R [nm] of fullerenes. The average intermolecular distance L represented by the formula (1) is an intermolecular distance when fullerene molecules are uniformly arranged at the position of the closest packed structure in the solid resin. The molar concentration of fullerenes is calculated using the resin content as the solvent for the fullerenes dispersed in the resin solid at room temperature.

In the present invention, the average intermolecular distance L is 3 to 12 nm, preferably 4 to 8 nm.
The bearing resin material of the present invention is mainly improved in compression resistance, particularly plastic deformation (permanent deformation), compared to a bearing resin material not containing fullerenes. When the average intermolecular distance L calculated by the formula (1) is less than 3 nm, the fullerene molecular diameter R is about 1 nm, so that the distance between adjacent fullerene molecules is extremely close to 3 fullerene molecules or less. Therefore, the added fullerene molecules tend to aggregate during melt-kneading, molding, or heat treatment, and the excellent compression resistance that is the effect of the present invention cannot be obtained. In such a case, the compression resistance may deteriorate due to the destruction of aggregates of fullerene molecules, the plasticizing effect of fullerene molecules, and the like.
When the average intermolecular distance L is larger than 12 nm, the added fullerenes have a very low concentration (for example, 300 ppm when the fullerene molecular diameter is 1 nm). The effect of addition cannot be obtained.

As the fullerenes, fullerenes not subjected to chemical modification or the like are particularly preferable in terms of thermal stability, and have excellent dispersibility with respect to thermoplastic resins. Of the fullerenes that have not been chemically modified, those having C ₆₀ or C ₇₀ as the main component are preferred. These can be used alone as a main component or a mixture as a main component, but those containing a mixture of C ₆₀ and C ₇₀ as a main component are particularly preferable in view of the environmental load and cost required for purification.

  The resin that can be used for the bearing resin material of the present invention is not particularly limited as long as it is a resin that can uniformly disperse fullerene in the resin, and examples thereof include a thermoplastic resin and a thermosetting resin. Among these, it is preferable to use a thermoplastic resin that can be easily melt-kneaded for dispersing fullerene in the resin or heat-treated for molding.

  The thermoplastic resin that can be used in the bearing resin material of the present invention is 150 ° C or higher, preferably 180 ° C or higher, if a thermoplastic resin that can be melt-kneaded and injection-molded is used, particularly for fullerenes or thermoplastic resins, Even if the treatment for improving the dispersibility of fullerenes is not performed, the fullerenes exhibit a good dispersibility by an ordinary melt-kneading method. This is because the cohesive force of fullerenes decreases by setting the temperature to 150 ° C. or higher, and the cohesive force becomes a problem in the dispersion of fullerenes in the resin material for bearings by melt kneading such as a twin-screw kneader. It is presumed that the level has dropped to a level that does not.

As the thermoplastic resin that can be used for the bearing resin material of the present invention, an amorphous resin, a crystalline resin, or a mixed resin thereof can be used, but a crystalline thermoplastic resin is suitable from the viewpoint of fatigue strength. . Examples of the amorphous resin include polystyrene, polyphenylene ether and modified polyphenylene ether, acrylic resin represented by polymethyl methacrylate, acrylonitrile-butadiene-styrene (ABS) resin, ethylene-vinyl alcohol, polysulfone, polyarylate, and polyether. Examples thereof include imide, polyethersulfone, polyamideimide, polycarbonate and polyvinyl chloride which are substantially amorphous resins.
Examples of the crystalline resin include aliphatic polyamides such as low density polyethylene, high density polyethylene, ultra high molecular weight polyethylene, polypropylene, syndiotactic polystyrene, 6 nylon, 11 nylon, 12 nylon, 6,6 nylon, and 4,6 nylon. Aromatic polyamides such as aromatic 6 nylon and aromatic 9 nylon, polyarylene sulfides such as POM, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate and polyphenylene sulfide, and polyether ether ketone (hereinafter referred to as PEEK) , Aromatic ketones such as polyetherketone, thermoplastic polyimide, polybenzimidazole, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene Perfluoroalkyl vinyl ether copolymer, an ethylene - tetrafluoroethylene copolymer, fluororesin such as polyvinylidene fluoride, and aromatic polyesters, known as a liquid crystal resin having a crystalline thermoplastic resins in other molten state.

  The thermoplastic resin that can be used for the bearing resin material of the present invention is at least one selected from, for example, an ether group, a ketone group, a thioether group, and an aromatic group having a particularly high electron density from the viewpoint of dispersibility of fullerenes. Those having a group on either the main chain or the side chain are preferred. Examples of the resin having these groups include POM having an ether group, polyarylene sulfides having a thioether group and an aromatic group in the main chain, an ether group, a ketone group, and an aromatic group in the main chain. And aromatic polyketones such as PEEK having a group.

The resin rolling bearing of the present invention will be described with reference to FIG. FIG. 1 is a partially cutaway perspective view of a roller bearing. In the roller bearing, a roller 3 is arranged between an inner ring 1 and an outer ring 2 via a cage 4. The roller 3 is subjected to rolling friction between the rolling surface 1 a of the inner ring 1 and the rolling surface 2 a of the outer ring 2, and is subjected to sliding friction with the flange 1 b of the inner ring 1. At least one component selected from the inner ring 1, the outer ring 2, the roller 3 that is a rolling element, and the cage 4 is formed using the bearing resin material.
By forming each component using the bearing resin material of the present invention, a bearing having excellent load resistance and fatigue resistance is obtained.
In addition, the resin rolling bearing of the present invention is made of a corrosion-resistant member such as stainless steel, glass, or ceramic other than the resin member formed of the bearing resin material, thereby preventing rust such as underwater without lubrication. It can be suitably used for applications that cannot be processed.

Examples 1 to 3, Comparative Examples 1 to 5
Using the raw materials shown in Table 1, the composition shown in Table 2 was melt-kneaded with a biaxial kneader to obtain a molding material. Using this molding material, a disk-shaped test piece having a diameter of 30 mm and a thickness of 5 mm was obtained by injection molding. With respect to this test piece, the amount of permanent deformation and compression fatigue resistance were measured by the following methods. The results are shown in Table 2.

Measurement of permanent deformation:
The surface of the test specimen was adjusted to a surface roughness Ra of 0.05 μm or less by polishing, and a silicon nitride ball with a diameter of 5.6 mm was pressed against the specimen surface at a load of 49 N for 24 hours, and then the load was removed. The deformation depth of the test piece after 24 hours was measured, and this value was defined as the amount of permanent deformation. Using the permanent deformation amount of the base resin alone as a reference (100%), the deformation rate was determined for each example and each comparative example. That is, the deformation ratios of Examples 1 to 2 and Comparative Examples 1 to 4 using POM as a base material resin are set to 100% of the permanent deformation amount of Comparative Example 1, and the deformation amount of Comparative Example 1 is 100%. The ratio of each permanent deformation amount of Examples 1 to 2 and Comparative Examples 2 to 4 was determined. Further, the deformation rate of Example 3 and Comparative Example 5 using PEEK as the base material resin is the ratio of the deformation amount of Example 3 to the permanent deformation amount of Comparative Example 5 with the permanent deformation amount of Comparative Example 5 being 100%. Asked.
Judgment was made with “X” when the deformation rate was 100% or more (same or worsened as the base material alone), and “◯” when the deformation rate was less than 100%.

Bearing life test:
The bearing life test will be described with reference to FIG. FIG. 2 is a schematic diagram showing an outline of a bearing life test. As shown in FIG. 2, a silicon nitride ball 8 having a diameter of 5.6 mm is placed on a disk-shaped test piece 9 and a circle having a diameter of 20 mm (indicated by “a” in FIG. 2) having the same center as the disk-shaped test piece 9. The ball 8 and the ball holding jig 7 are arranged at equal intervals on the top and held by using a ball holding jig 7 (cage, made of 6, 6 nylon) so that the balls 8 do not collide with each other. Rotate on a disk-shaped test piece 9 at a rotational speed of 1500 rpm and apply a repeated compression load (thrust bearing configuration). The compression repetition load is applied to the ball guide plate 6 in contact with the upper surface of the ball 8 at a load 5 of 147 N and applied to the disk-shaped test piece 9 in contact with the lower surface of the ball 8. The bearing life test was conducted continuously at 25 ° C in water for 250 hours. After the test, the presence or absence of delamination at the ball raceway on the disk-shaped specimen was measured.

Comprehensive evaluation:
Specimens with a deformation rate of less than 100% obtained from the measurement of permanent deformation and no occurrence of delamination in the bearing life test were designated as “OK”, and other specimens were designated as “NG”. .

From Table 2, data on the deformation rate of each test piece mixed with fullerene and the average intermolecular distance of the mixed fullerene were selected, and the correlation between them was shown in FIG. FIG. 3 is a graph showing the relationship between the deformation rate of each test piece and the average intermolecular distance of fullerene. In FIG. 3, the horizontal axis indicating the average intermolecular distance of fullerene is displayed on a logarithmic scale.
As is apparent from the results shown in FIG. 3, only when the average intermolecular distance L disclosed in the present invention is in the range of 3 to 12 nm, the addition of fullerenes improves the compression deformation resistance, and the amount of permanent deformation. Decrease. Also, from the evaluation results in Table 2, no peeling is observed in the range of the average interparticle distance of the examples. From these results, the resin material for bearings of the present invention can be applied as a resin rolling bearing material excellent in load resistance and fatigue resistance.

The resin material for bearings of the present invention is a resin material for bearings that is excellent in compression resistance, particularly compression fatigue resistance, by blending fullerenes in a resin and controlling the distance between fullerene molecules within a predetermined range. Therefore, using this resin material, it is suitable for a resin material for bearings having excellent compression deformation resistance, particularly compression permanent deformation resistance, and resin rolling bearings such as ball bearings, roller bearings, thrust bearings, etc. having excellent load resistance. Available.
In particular, it can be suitably used as a resin material for bearings that is excellent in load resistance and fatigue resistance that can be applied to a bearing ring or a washer of a resin rolling bearing.
Moreover, it can utilize suitably as a bearing material of the bearing used for the use which cannot perform rust prevention processing, such as underwater, under non-lubrication.

It is a partially cutaway perspective view of a roller bearing. It is a schematic diagram which shows the outline | summary of a bearing life test. It is a figure which shows the relationship between the deformation rate of each test piece, and the average intermolecular distance of fullerene.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner ring 2 Outer ring 3 Roller 4 Cage 5 Cage 5 Load 6 Ball guide plate 7 Ball holding jig 8 Ball 9 Test piece on disc

Claims (9)

A resin material for bearings in which fullerenes are blended with resin,
A bearing resin material, wherein an average intermolecular distance L of fullerenes in the resin material represented by the following formula (1) is 3 nm to 12 nm.

Here, n a compounding molar concentration [mol / L] of the fullerene, N _A is Avogadro's number, R represents respectively a diameter [nm] of the fullerene molecule.   2. The bearing resin material according to claim 1, wherein the fullerene is a fullerene not chemically modified with an acid group or a hydroxyl group. The bearing resin material according to claim 1, wherein the fullerene is mainly composed of at least one fullerene selected from C ₆₀ and C ₇₀ .   The bearing resin material according to claim 1, wherein the resin is a thermoplastic resin.   The bearing resin material according to claim 4, wherein the thermoplastic resin is a thermoplastic resin that can be melt-kneaded at 150 ° C. or higher.   6. The bearing resin material according to claim 4, wherein the thermoplastic resin is a crystalline resin.   The bearing for a bearing according to claim 4, wherein the thermoplastic resin is a thermoplastic resin including at least one group selected from an ether group, a ketone group, and an aromatic group. Resin material. A resin rolling bearing comprising a bearing ring or a washer composed of an inner ring and an outer ring, a rolling element, and a cage,
8. A resin characterized in that at least one member selected from the bearing ring or the washer and the cage is molded using the bearing resin material according to any one of claims 1 to 7. Rolling bearing. 9. The resin rolling bearing according to claim 8, wherein the member other than the resin member formed using a resin material is a corrosion-resistant member.

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