JP2022039847A - グリース組成物および転がり軸受 - Google Patents
グリース組成物および転がり軸受 Download PDFInfo
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- JP2022039847A JP2022039847A JP2020145104A JP2020145104A JP2022039847A JP 2022039847 A JP2022039847 A JP 2022039847A JP 2020145104 A JP2020145104 A JP 2020145104A JP 2020145104 A JP2020145104 A JP 2020145104A JP 2022039847 A JP2022039847 A JP 2022039847A
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- Prior art keywords
- grease composition
- oil
- thickener
- bearing
- base oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000004519 grease Substances 0.000 title claims abstract description 74
- 239000000203 mixture Substances 0.000 title claims abstract description 58
- 238000005096 rolling process Methods 0.000 title claims abstract description 47
- 239000003921 oil Substances 0.000 claims abstract description 49
- 239000002199 base oil Substances 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 150000003839 salts Chemical class 0.000 claims abstract description 33
- 150000007524 organic acids Chemical class 0.000 claims abstract description 32
- 239000002562 thickening agent Substances 0.000 claims abstract description 27
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 24
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- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 150000001412 amines Chemical class 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 150000001735 carboxylic acids Chemical class 0.000 claims description 5
- 159000000000 sodium salts Chemical group 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
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- 239000002131 composite material Substances 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 2
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- 239000000314 lubricant Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- JQCXWCOOWVGKMT-UHFFFAOYSA-N phthalic acid diheptyl ester Natural products CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC JQCXWCOOWVGKMT-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellityc acid Natural products OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Images
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/18—Ethers, e.g. epoxides
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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
- C10M115/00—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
- C10M115/08—Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
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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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
-
- 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
-
- 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
- C10M169/02—Mixtures of base-materials and thickeners
-
- 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
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
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- 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
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- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
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- 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
- C10N2020/02—Viscosity; Viscosity index
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- 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
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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Abstract
Description
各グリース組成物をそれぞれ、接触形のシール部材を備える深溝玉軸受6900(内径10mm×外径22mm×幅6mm)に封入して、試験用軸受を作製した。実施例8以外のシール部材には、可塑剤としてフタル酸エステル系可塑剤(フタル酸ジ-2-エチルヘキシル)を含むNBRを使用し、実施例8のシール部材には、可塑剤としてトリメリット酸エステル系可塑剤(レオルーブLTM、FMC製、40℃における動粘度53mm2/s)を含むNBRを使用した。得られた試験用軸受を、雰囲気温度120℃、6000min-1、200時間で内輪回転させた。試験用軸受の軸方向両端にガラス板を配置し、軸受から飛散したグリース組成物を付着させた。発塵量は、試験後のガラス板の重量から試験前のガラス板の重量を差し引くことで求めた。発塵量の評価について、3mg以下を◎印、3mgより大きく4mg以下を○印、4mgより大きく6mg以下を△印、6mgより大きいのを×印として表1および表2に併記する。
各グリース組成物についてボールオンディスク型往復動試験機を用いて、摩耗試験を行った。鋼材平板(20mm角で厚さ5mm)型試験片に各グリース組成物を塗布し、SUJ2製の鋼球1個(7/16inch)を98Nの荷重で押し当て、振幅0.47mm、振動数30Hzで8時間の微小往復摺動をさせた。この試験後の鋼材平板の摩耗深さ(μm)を測定した。摩耗深さの評価について、3μm以下を◎印、3μmより大きく5μm以下を○印、5μmより大きく10μm以下を△印、10μmより大きいのを×印として表1および表2に併記する。
各グリース組成物をそれぞれ、深溝玉軸受6204(内径20mm、外径47mm、幅14mm)に1.8g封入して、試験用軸受を作製した。得られた試験用軸受を、軸受外輪の外径部温度180℃、アキシアル荷重67N、ラジアル荷重67Nの条件下で、10000min-1の回転速度で回転させて、焼き付きに至るまでの時間を測定した。グリース寿命時間の評価について、300時間以上を◎印、230時間以上300時間未満を○印、150時間以上230時間未満を△印、150時間未満を×印として表1および表2に併記する。
2 内輪
3 外輪
4 転動体
5 保持器
6 シール部材
7 グリース
8a、8b 開口部
11 サーボモータ
12 ロータ
13 ステータ
14 シャフト
15 エンコーダ
16 転がり軸受
Claims (6)
- 基油と増ちょう剤とを含むグリース組成物であって、
前記基油が、合成炭化水素油とエーテル油を含み、40℃における動粘度が120mm2/s以上の混合油であり、
前記増ちょう剤は、脂肪族ジウレア化合物および脂環式ジウレア化合物であり、前記基油と前記増ちょう剤との合計量100質量部に対して12質量部~15質量部含まれ、
前記グリース組成物は、JIS K 2220に準拠して測定される混和ちょう度が200~240であり、20℃で固体の有機酸金属塩を含むことを特徴とするグリース組成物。 - 前記有機酸金属塩が、ナトリウム塩またはカルシウム塩であることを特徴とする請求項1記載のグリース組成物。
- 前記有機酸金属塩が、炭素数2~18の有機カルボン酸の金属塩であり、
前記グリース組成物は、分子構造内に硫黄およびリンを含む添加剤を含まないことを特徴とする請求項1または請求項2記載のグリース組成物。 - 前記グリース組成物はアミン系酸化防止剤を更に含み、該アミン系酸化防止剤がN-フェニル-N’-イソプロピル-p-フェニレンジアミンであることを特徴とする請求項1から請求項3までのいずれか1項記載のグリース組成物。
- 内輪と、外輪と、該内輪および外輪の間に介在する複数の転動体と、前記内輪および外輪の軸方向両端の開口部に設けられたシール部材と、軸受内空間に封入されるグリース組成物とを有する転がり軸受であって、
前記グリース組成物が請求項1から請求項4までのいずれか1項記載のグリース組成物であることを特徴とする転がり軸受。 - 前記転がり軸受が回転電気機械用軸受であることを特徴とする請求項5記載の転がり軸受。
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CN202180050685.9A CN115867631A (zh) | 2020-08-28 | 2021-08-26 | 润滑脂组合物及滚动轴承 |
PCT/JP2021/031288 WO2022045233A1 (ja) | 2020-08-28 | 2021-08-26 | グリース組成物および転がり軸受 |
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JP4021532B2 (ja) * | 1997-12-02 | 2007-12-12 | 日本精工株式会社 | グリース及び転動装置 |
JP2000192070A (ja) * | 1998-12-25 | 2000-07-11 | Ntn Corp | 低発塵性転がり軸受 |
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JP6722379B2 (ja) * | 2015-05-29 | 2020-07-15 | 株式会社ジェイテクト | グリース組成物およびその製造方法、ならびに当該グリース組成物が封入された転がり軸受 |
JP6646379B2 (ja) * | 2015-08-10 | 2020-02-14 | Ntn株式会社 | グリース組成物およびグリース封入転がり軸受 |
KR20220092866A (ko) * | 2019-10-31 | 2022-07-04 | 미네베아미츠미 가부시키가이샤 | 저발진 고속 회전용 그리스 조성물 및 그것을 봉입한 베어링 |
JP7448359B2 (ja) * | 2020-01-16 | 2024-03-12 | シェルルブリカンツジャパン株式会社 | グリース組成物 |
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2020
- 2020-08-28 JP JP2020145104A patent/JP2022039847A/ja active Pending
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2021
- 2021-08-26 WO PCT/JP2021/031288 patent/WO2022045233A1/ja active Application Filing
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