WO2022107882A1 - グリース組成物及び転動装置 - Google Patents
グリース組成物及び転動装置 Download PDFInfo
- Publication number
- WO2022107882A1 WO2022107882A1 PCT/JP2021/042603 JP2021042603W WO2022107882A1 WO 2022107882 A1 WO2022107882 A1 WO 2022107882A1 JP 2021042603 W JP2021042603 W JP 2021042603W WO 2022107882 A1 WO2022107882 A1 WO 2022107882A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grease composition
- polar polymer
- pair
- base oil
- seal
- Prior art date
Links
- 239000004519 grease Substances 0.000 title claims abstract description 102
- 239000000203 mixture Substances 0.000 title claims abstract description 87
- 238000005096 rolling process Methods 0.000 title claims abstract description 45
- 229920006112 polar polymer Polymers 0.000 claims abstract description 69
- 239000002199 base oil Substances 0.000 claims abstract description 62
- 239000013013 elastic material Substances 0.000 claims abstract description 8
- 229920000193 polymethacrylate Polymers 0.000 claims description 12
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 6
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 claims description 3
- 229920000147 Styrene maleic anhydride Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 81
- 230000006866 deterioration Effects 0.000 abstract description 4
- 239000011800 void material Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 28
- 235000019198 oils Nutrition 0.000 description 28
- 230000000052 comparative effect Effects 0.000 description 22
- 239000002562 thickening agent Substances 0.000 description 21
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- 235000013877 carbamide Nutrition 0.000 description 18
- 239000004202 carbamide Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000654 additive Substances 0.000 description 9
- 125000001931 aliphatic group Chemical group 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 229920013639 polyalphaolefin Polymers 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- -1 urea compound Chemical class 0.000 description 7
- 239000004215 Carbon black (E152) Substances 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000002480 mineral oil Substances 0.000 description 5
- 235000010446 mineral oil Nutrition 0.000 description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 230000009881 electrostatic interaction Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- 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 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 2
- AZYRZNIYJDKRHO-UHFFFAOYSA-N 1,3-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC(C(C)(C)N=C=O)=C1 AZYRZNIYJDKRHO-UHFFFAOYSA-N 0.000 description 2
- 239000005059 1,4-Cyclohexyldiisocyanate Substances 0.000 description 2
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 2
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 2
- JRQLZCFSWYQHPI-UHFFFAOYSA-N 4,5-dichloro-2-cyclohexyl-1,2-thiazol-3-one Chemical compound O=C1C(Cl)=C(Cl)SN1C1CCCCC1 JRQLZCFSWYQHPI-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000019482 Palm oil Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 2
- 229920000800 acrylic rubber Polymers 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 235000019197 fats Nutrition 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 239000002540 palm oil Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 150000003673 urethanes Chemical class 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- FMZUHGYZWYNSOA-VVBFYGJXSA-N (1r)-1-[(4r,4ar,8as)-2,6-diphenyl-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound C([C@@H]1OC(O[C@@H]([C@@H]1O1)[C@H](O)CO)C=2C=CC=CC=2)OC1C1=CC=CC=C1 FMZUHGYZWYNSOA-VVBFYGJXSA-N 0.000 description 1
- HZVFRKSYUGFFEJ-YVECIDJPSA-N (2r,3r,4s,5r)-7-phenylhept-6-ene-1,2,3,4,5,6-hexol Chemical class OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=CC1=CC=CC=C1 HZVFRKSYUGFFEJ-YVECIDJPSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 1
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 description 1
- XSCLFFBWRKTMTE-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)cyclohexane Chemical compound O=C=NCC1CCCC(CN=C=O)C1 XSCLFFBWRKTMTE-UHFFFAOYSA-N 0.000 description 1
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 description 1
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- MHZGKXUYDGKKIU-UHFFFAOYSA-N Decylamine Chemical compound CCCCCCCCCCN MHZGKXUYDGKKIU-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 235000019774 Rice Bran oil Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 229940024606 amino acid Drugs 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 229940087101 dibenzylidene sorbitol Drugs 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- OYQYHJRSHHYEIG-UHFFFAOYSA-N ethyl carbamate;urea Chemical compound NC(N)=O.CCOC(N)=O OYQYHJRSHHYEIG-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- YDNLNVZZTACNJX-UHFFFAOYSA-N isocyanatomethylbenzene Chemical compound O=C=NCC1=CC=CC=C1 YDNLNVZZTACNJX-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008165 rice bran oil Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003443 succinic acid derivatives Chemical class 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- 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
- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/04—Lubricating compositions characterised by the thickener being a macromolecular compound containing oxygen
- C10M119/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M119/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
-
- 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
- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/04—Lubricating compositions characterised by the thickener being a macromolecular compound containing oxygen
- C10M119/14—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M119/16—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
-
- 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
- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/04—Lubricating compositions characterised by the thickener being a macromolecular compound containing oxygen
- C10M119/14—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M119/16—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M119/18—Polyoxyalkylenes
-
- 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
- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/24—Lubricating compositions characterised by the thickener being a macromolecular compound containing nitrogen
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
- C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
- C10M145/14—Acrylate; Methacrylate
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
- C10M145/16—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate polycarboxylic
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/22—Polyesters
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of 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
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
-
- 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
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
- F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
- F16J15/3264—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals the elements being separable from each other
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- 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
- C10M2205/0213—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as thickening agents
-
- 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
-
- 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
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
- C10M2205/046—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene used as thickening agents
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
- C10M2209/1026—Polyesters use as thickening agent
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
- C10M2217/0456—Polyureas; Polyurethanes used as thickening agents
-
- 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
- C10N2020/02—Viscosity; Viscosity index
-
- 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
- C10N2020/04—Molecular weight; Molecular weight distribution
-
- 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
- C10N2030/36—Seal compatibility, e.g. with rubber
-
- 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
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
Definitions
- the present invention relates to a sealing member of a rolling device or a grease composition and a rolling device used for the sealing device.
- Wheel rolling gear that supports the wheels of automobiles and railroad vehicles is usually used outdoors while being exposed to rainwater, muddy water, and the like. Therefore, in the conventional rolling device for wheels, for the purpose of preventing rainwater, muddy water, etc. from entering the inside of the bearing and sealing the grease sealed inside the bearing, between the pair of raceway wheels. A sealing member that closes the end of the opening is arranged.
- low friction low torque
- Patent Document 1 proposes a sealing structure of a rotating member in which grease having a base oil kinematic viscosity of 10 to 60 mm 2 / s at 40 ° C. is applied to a surface on which the seal lip is in sliding contact.
- the surface on which the seal lip is in sliding contact is an uneven surface having a large number of dimples, and the surface roughness Ra that maintains the oil film of grease even when the pressure due to the seal lip acts is determined. It is 0.5 to 1.5 ⁇ m, and according to the above-mentioned sealing structure, it is possible to reduce the rotational torque while maintaining the sealing property by reducing the viscosity of the base oil, and the grease has this unevenness. Since it is held in the portion, it is said that even if the pressure of the seal lip acts on the surface in contact with the surface, the breakage of the grease oil film can be suppressed.
- Patent Document 2 proposes a sealing device that reduces the occurrence of sliding wear of the seal lip.
- This sealing device is provided with three seal lips, each of which has irregularities formed on the sliding surfaces on the three seal lips side, and the space between the three seal lips is filled with low-viscosity base oil grease. be.
- the base oil used in this sealing device preferably has a kinematic viscosity of the base oil at 40 ° C. of 10 to 40 mm 2 / s.
- the present invention has been made in view of the above problems, and suppresses deterioration of sealing property even when a low-viscosity base oil having a kinematic viscosity of 5 to 40 mm 2 / s is used, for example. It is an object of the present invention to provide a grease composition and a rolling apparatus capable of achieving both sealing performance and low torque.
- the present inventors have improved the sealing property by incorporating a polar polymer having a specific weight average molecular weight in the grease composition used for the sealing portion of the rolling element. It can be improved, especially when a low viscosity base oil with a kinematic viscosity of 5 to 40 mm 2 / s at 40 ° C. is used, without impairing the sealing property, and the lip part of the seal and the lip of the seal. It has been found that the rotational resistance generated when the portion slides with the sliding surface can be reduced (reduced torque).
- the grease composition contains, for example, a low-viscosity base oil having a kinematic viscosity of 5 to 40 mm 2 / s at 40 ° C. and the polar polymer, so that the seal lip slides while maintaining low torque.
- An oil film can be stably formed on the surface.
- the grease composition containing the above polar polymer There are two effects obtained by the grease composition containing the above polar polymer.
- the first point is that the oil film thickness can be increased by the thickening effect of the polymer.
- the second point is that the polar group of the polar polymer exerts an electrostatic force between the seal lip and the sliding surface and the grease to improve the wettability, so that the grease can be retained on the sliding surface. It is a point that can be done.
- the polar polymer functions as a surfactant by using the polar polymer, so that the polar group and the thickener of the polar polymer can be used.
- An electrostatic interaction acts with the polar group of the polar polymer, and an interaction such as van der Waals force acts between the non-polar group of the polar polymer and the base oil.
- the polar polymer functions like a surfactant, the wettability of the thickener to the base oil can be improved. As a result, it is possible to prevent the grease composition from scattering from the sliding portion during sliding.
- the present invention has been made based on these findings.
- the seal member is used for a rolling device having a seal member for closing an open end portion of the above, and the seal member has a plurality of seal lips made of an elastic material.
- a grease composition which is a base oil, which is sealed in a gap between a sliding surface on which the seal lip slides on any one of the pair of raceway rings and two adjacent seal lips.
- polar polymers A grease composition, wherein the polar polymer has a weight average molecular weight of 5000 to 140000.
- the polar polymer is at least one selected from polyacrylate, polymethacrylate, styrene-maleic anhydride copolymer, olefin-maleic anhydride copolymer, polyurethane, polyester and ethylene oxide-propylene oxide copolymer.
- [5] A space formed between a pair of raceway rings having a pair of raceway surfaces facing each other, a plurality of rolling elements rotatably held between the pair of raceway surfaces, and the pair of raceway rings.
- a rolling device having a seal member for closing the open end portion of the above, and the seal member having a plurality of seal lips made of an elastic material.
- the grease composition is sealed in the gap between the sliding surface on which the seal lip slides on any one of the pair of raceway rings and the two adjacent seal lips.
- the grease composition contains a base oil and a polar polymer and contains.
- a rolling apparatus characterized in that the weight average molecular weight of the polar polymer is 5000 to 140000.
- the grease composition contains a polar polymer and the weight average molecular weight of the polar polymer is appropriately controlled, for example, a low viscosity base oil having a kinematic viscosity of 5 to 40 mm 2 / s is used. Even in such a case, it is possible to provide a grease composition and a rolling device that can suppress the deterioration of the sealing property and can realize both the sealing property and the low torque.
- FIG. 1 is a cross-sectional view showing a rolling device (rolling device for wheels) according to an embodiment of the present invention.
- FIG. 2 is an enlarged cross-sectional view showing a sealing device in the rolling device according to the embodiment of the present invention.
- FIG. 3 is an enlarged cross-sectional view showing a seal member in the rolling apparatus according to the embodiment of the present invention.
- FIG. 4 is a graph showing the relationship between the sealing property and the sealing torque of each Example and Comparative Example.
- FIG. 1 is a cross-sectional view showing a rolling apparatus according to an embodiment of the present invention.
- FIG. 2 is an enlarged cross-sectional view showing a sealing device in the rolling device according to the embodiment of the present invention.
- FIG. 3 is an enlarged cross-sectional view showing a seal member in the rolling apparatus according to the embodiment of the present invention.
- the "rolling device for wheels" will be described as an example of the rolling device.
- the rolling element 20 has an outer raceway ring 1 which is a fixed ring and an inner raceway ring 3 which is a rotary wheel, and constitutes a pair of raceway rings.
- the outer raceway ring 1 is supported and fixed to a suspension device (not shown) by a mounting portion 2 formed on the outer peripheral surface thereof.
- the inner raceway ring 3 is provided concentrically with the outer raceway ring 1, and the inner raceway ring 3 rotates when used.
- the inner raceway ring 3 has a hub 4 and an inner ring 5, and a spline groove 6 is formed on the inner peripheral surface of the hub 4. Further, a mounting flange 7 is formed on the outer peripheral surface of the outer end portion of the hub 4.
- Two rows of outer ring raceway surfaces 8 and 8 are formed on the inner peripheral surface of the outer raceway ring 1, and inner ring raceway surfaces 9 and 9 are formed at positions of the hub 4 and the inner ring 5 facing the outer ring raceway surfaces 8 and 8.
- rolling elements 10 and 10 are rotatably arranged between the outer ring raceway surfaces 8 and 8 and the inner ring raceway surfaces 9 and 9, whereby the inner raceway ring is arranged inside the outer raceway ring 1.
- a cage 11 is provided between the rolling elements 10 adjacent to each other between the outer ring raceway surface 8 and the inner ring raceway surface 9, whereby the rolling element 10 can roll with low torque.
- a sealing device 14 is provided between one end of the outer raceway ring 1 in the axial direction and the inner ring 5 (see FIG. 2), and the other end of the outer raceway ring 1 in the axial direction.
- a sealing member 12b is provided between the hub 4 and the hub 4. The sealing device 14 and the sealing member 12b close the open end of the space 13 in which the rolling elements 10 and 10 are arranged between the inner peripheral surface of the outer raceway ring 1 and the outer peripheral surface of the inner raceway ring 3. ..
- the sealing device 14 is attached to the outer raceway ring 1, and is attached to the seal member 12a composed of the core metal 110 and the elastic member 107, and the slinger attached to the inner ring 5 in the inner raceway ring 3.
- the core metal 110 has a substantially L-shaped cross section and is formed in an annular shape, and is integrally formed by, for example, punching or plastic working a metal plate such as a low carbon steel plate. Further, the slinger 106 is also formed in an annular shape with an L-shaped cross section, and is integrally formed by performing punching or plastic working such as pressing on a metal plate having excellent corrosion resistance such as a stainless steel plate. ing.
- the elastic member 107 is made of an elastic material, includes an outer seal lip 114, an intermediate seal lip 115, and an inner seal lip 116, and the base end portion thereof is joined and fixed to the core metal 105.
- the tip edges of the outer seal lip 114, the intermediate seal lip 115, and the inner seal lip 116 are in sliding contact with the inner surface of the slinger 106.
- a predetermined grease composition is sealed in the gap portion 122 formed by the 116 and the inner side surface of the slinger 106 which is a sliding surface thereof.
- this grease composition contains a base oil and a specific polar polymer, the thickening effect of the polymer can improve the oil film thickness, as well as the outer seal lip 114, the intermediate seal lip 115 and the inner seal.
- the grease composition can be effectively held between the lip 116 and the inner surface of the slinger 106, which is a sliding surface. As a result, low torque can be realized without impairing the sealing property that prevents dust, water, muddy water, etc. from the outside from entering the inside of the bearing.
- the grease composition can be similarly used in the sealing member 12b as shown in FIG.
- the seal member 12b shown in FIG. 3 has a core metal 216 and an elastic member 217, each of which is formed in an annular shape.
- the core metal 216 is formed by processing a metal plate, and is internally fitted and fixed to the outer end portion of the outer raceway ring 1.
- the elastic member 217 is made of an elastic material and has an outer diameter side side seal lip 218, an inner diameter side side seal lip 219 and a radial seal lip 220.
- the base of the elastic member 217 is joined and fixed to the core metal 216 with an adhesive or the like.
- the gap portion 221 between the outer diameter side side seal lip 218 and the inner diameter side seal lip 219 and the inner surface of the inner raceway ring 3 which is the sliding surface thereof, and the inner diameter side side seal A predetermined grease composition is sealed in the gap portion 222 between the lip 219 and the radial seal lip 220 and the inner surface of the inner raceway ring 3 which is a sliding surface thereof. Therefore, as in the case of the sealing device 14, low torque can be realized without impairing the sealing property that prevents dust, water, muddy water, etc. from the outside from entering the inside of the bearing.
- the grease composition according to this embodiment contains a base oil and a polar polymer, and also contains a thickener and, if necessary, an additive.
- the base oil is the main component of the grease composition according to the present embodiment, and for example, the grease composition can be obtained by dispersing the thickener added in the base oil.
- the base oil used in this embodiment is preferably a low viscosity base oil having a kinematic viscosity at 40 ° C. of 5 to 40 mm 2 / s.
- the kinematic viscosity of the base oil at 40 ° C. is, for example, 10 to 40 mm 2 / s.
- the grease atomization refers to both a phenomenon in which the grease is released as fine particles and a phenomenon in which the grease evaporates.
- a polar polymer having a specific weight average molecular weight is used as an additive for the grease composition.
- an electrostatic force acts between the seal lip and the sliding surface and the grease due to the polar group of the polar polymer, and the seal lip and the sliding surface act. It is considered that the wettability between the surface and the grease can be improved.
- the polar polymer functions as a surfactant, so that an electrostatic interaction acts between the polar group of the polar polymer and the thickener, and van der Waals between the non-polar group and the base oil. Interactions such as force work. As a result, it is considered that the wettability of the thickener to the base oil can be improved. Due to the effect of the polar polymer as described above, it is possible to prevent the grease composition from scattering from the sliding portion during sliding.
- the kinematic viscosity of the base oil at 40 ° C. is preferably 5 mm 2 / s or more, and more preferably 8 mm 2 / s or more.
- the kinematic viscosity of the base oil at 40 ° C. is preferably 40 mm 2 / s or less, and more preferably 20 mm 2 / s or less.
- the type of the base oil used in the present embodiment is not particularly limited, and all the oils (mineral oil-based, synthetic oil-based or natural oil-based lubricating oils) used as the base oil of the lubricating oil may be used.
- oils mineral oil-based, synthetic oil-based or natural oil-based lubricating oils
- mineral oil-based lubricating base oil mineral oil is refined by appropriately combining vacuum distillation, oil removal, solvent extraction, hydrocracking, solvent dewaxing, sulfuric acid washing, white clay refining, hydrorefining and the like. I can mention what I did.
- the synthetic oil-based lubricating oil base oil include hydrocarbon-based oils, aromatic oils, ester-based oils, ether-based oils, fluorine-based oils, silicone-based oils, and the like.
- examples of the natural oil-based lubricating base oil include fat-based oils such as beef tallow, pork fat, soybean oil, rapeseed oil, rice bran oil, palm oil, palm oil and palm kernel oil, and hydrides thereof.
- fat-based oils such as beef tallow, pork fat, soybean oil, rapeseed oil, rice bran oil, palm oil, palm oil and palm kernel oil, and hydrides thereof.
- mineral oil or synthetic hydrocarbon-based oil when, for example, the most commonly used nitrile rubber is used as the material of the sealing member or the elastic member in the sealing device, it is preferable to use mineral oil or synthetic hydrocarbon-based oil.
- Examples of the synthetic hydrocarbon oil include poly- ⁇ -olefin (PAO), which is a synthetic oil, and gas to liquid (GTL: Gas To Liquid). Since poly- ⁇ -olefins have a high viscosity index, there is little decrease in viscosity at high temperatures, the ability to hold an oil film is high, and the viscosity does not become too high at low temperatures, maintaining appropriate fluidity, and thus lubricity. There is little decrease in. This excellent low temperature fluidity is an extremely effective action when used as a base oil in a grease composition.
- PAO poly- ⁇ -olefin
- GTL Gas To Liquid
- the grease composition when a lubricating oil having extremely high viscosity at low temperature and losing fluidity is used as the base oil of the grease composition, the grease composition itself also completely loses fluidity, and the grease composition almost with respect to the sliding surface of the mechanical part. Items may not be supplied and wear may be accelerated.
- the grease composition containing a base oil having excellent low-temperature fluidity such as poly- ⁇ -olefin maintains the fluidity, an appropriate amount of lubricating oil can be supplied to the sliding surface. The lubrication function is maintained, and wear on the sliding surface can be suppressed.
- Liquid hydrocarbons are synthesized by the Fischer-Tropsch process, a technology for converting natural gas into liquid fuel, and the GTL obtained based on this is sulfur compared to mineral oil base oil refined from crude oil.
- the content and aromatic content are extremely low, and the paraffin composition ratio is extremely high. Therefore, since it has excellent oxidation stability and very small evaporation loss, it can be suitably used as the base oil of this embodiment.
- the polar polymer contained in the grease composition according to the present embodiment is a polymer having a polar group and a non-polar group in the polymer structure. As described above, when the polar polymer is contained in the grease composition, the oil film thickness between the seal lip and the sliding surface can be increased due to the thickening effect of the polar polymer and the like.
- the grease-like state can be maintained by containing a specific polar polymer. It is possible to prevent the grease composition from being dispersed by stirring and sliding.
- the grease composition is specified.
- a synthetic hydrocarbon oil having a low polarity is used as the base oil and a thickener having a polar group (urea bond, etc.) such as a urea compound is used as the thickener
- the grease composition is specified.
- the polar polymer of the above is contained, durability and wettability can be improved.
- PAO which can be suitably used as a base oil, has a property of poor wettability to a metal surface, a rubber surface, etc., but low aggression to rubber. In addition, PAO has little change in viscosity with temperature and is excellent in durability.
- the aliphatic urea preferably used as a thickener described later does not have good compatibility with PAO and has a property of being easily separated by oil. In addition, it is originally hard and easily softened by shearing, but its durability is good.
- a grease composition containing such a base oil and a thickener has excellent durability, but has poor wettability (adhesiveness), so that it does not stay in a predetermined place and is easily dispersed. ..
- the sealing member has a plurality of sealing lips made of an elastic material such as nitrile rubber or acrylic rubber, and these sealing lips are, for example, a steel slinger 106 or steel.
- the surface of the inner raceway ring 3 made of steel is slid. Therefore, when a grease composition containing a polar polymer is present in this sliding portion, the polar group (ester group, etc.) of the polar polymer dissolved in the base oil and the polar group (in the case of nitrile rubber) on the surface of the seal lip are present.
- the grease composition can be stably present between the seal lip and the sliding surface, and the low torque and the seal can be obtained. It is possible to achieve both sex and sex.
- examples of the non-polar group of the polar polymer include hydrocarbon-based functional groups such as a methyl group and an ethyl group composed of C and H.
- the polar group of the polar polymer refers to a functional group other than the above-mentioned non-polar group, and contains an element other than C and H such as O, N, S and the like, and has a charge bias in the molecule. The group is mentioned.
- Examples of the polar group include a hydroxy group, an alkoxy group, an amino group, an amide group, a carbonyl group, a carboxy group, a cyano group, a formyl group, a nitro group, a sulfo group, an amide bond, a peptide bond, a urea bond, a urethane bond, and an ester. Examples include bonding.
- the polar polymer is soluble in the base oil and is not particularly limited as long as the weight average molecular weight described later is within the specified range.
- a polymethacrylate, a polyacrylate, or a styrene-maleic anhydride copolymer is used.
- Olefin-maleic anhydride copolymer, polyurethane, polyester, ethylene oxide-propylene oxide copolymer and the like and these compounds may be used alone or in combination of two or more. ..
- the polar polymer may contain other functional groups as long as the effects of the present invention are not impaired. It is more preferable to use at least one of polymethacrylate and polyacrylate among the polar polymers listed above from the viewpoint of torque and sealing property.
- the weight average molecular weight of the polar polymer is preferably 5000 or more and preferably 140000 or less.
- the weight average molecular weight of the polar polymer exceeds 140000, the viscosity of the grease composition becomes too high, it becomes difficult to uniformly disperse the polar polymer in the grease composition, and the polar polymer is used as a seal lip. It becomes difficult to penetrate into the sliding surface, and the effect of improving the oil film thickness cannot be obtained. Therefore, the weight average molecular weight of the polar polymer is 140,000 or less, preferably 50,000 or less.
- the content of the polar polymer is preferably 0.5% by mass or more, preferably 1.0% by mass or more, based on the total mass of the grease composition. More preferably, it is more preferably 1.5% by mass or more.
- the content of the polar polymer is 30% by mass or less with respect to the total mass of the grease composition, the viscosity of the grease composition does not become too high, and an increase in torque can be suppressed. Therefore, the content of the polar polymer is preferably 30% by mass or less, more preferably 28% by mass or less, and further preferably 25% by mass or less with respect to the total mass of the grease composition.
- a solution containing a polar polymer and, for example, oil can be contained in the grease composition as an additive.
- the content of the polar polymer represents the "substantial polymer concentration" of the polar polymer.
- the real polymer concentration indicates the polymer concentration actually contained in the grease composition, and is a value that can be calculated by multiplying the addition amount of the solution by the ratio of the polar polymer in the solution.
- the thickener is a component having the effect of dispersing in the base oil to form a three-dimensional structure and holding the base oil in the three-dimensional structure to make it semi-solid, and is contained in the grease composition. Can be made to.
- the thickener examples include metal soaps having a metal component such as Li and Na, metal soaps such as a composite metal soap having a metal component such as Li, Na, Ba and Ca, Benton, silica gel, a urea compound, and a urea compound.
- Non-soaks such as urethane compounds and urethane compounds, amino acid gelling agents (N-2-ethylhexanoyl-L-glutamic acid dibutylamide, N-lauroyl-L-glutamic acid- ⁇ , ⁇ -n-dibutylamide, etc.) , And benzylidene sorbitol derivatives (dibenzylidene sorbitol, ditrilidene sorbitol, asymmetric dialkylbenzylidene sorbitol, etc.) can be appropriately selected and used. These thickeners can be used alone or as a mixture.
- a urea compound produced by reaction with isocyanate and a primary amine may be any of diurea, triurea, tetraurea, pentaurea and hexaurea.
- the type of urea compound may be any of an aliphatic urea, an alicyclic urea and an aromatic urea.
- a urea having a group other than the urea group such as a urethane group (for example, urea urethane) may be used.
- aliphatic urea can reduce the sealing torque as compared with aromatic urea and alicyclic urea.
- One of the reasons for this is considered to be that the agitation resistance of the aliphatic urea is smaller than that of other ureas because the grease is easily softened by the shearing force. Therefore, in the present embodiment, it is preferable to use an aliphatic diurea obtained by reacting 1 mol of diisocyanate with 2 mol of an aliphatic primary monoamine.
- diisocyanate examples include aliphatic diisocyanates, alicyclic diisocyanates, and aromatic diisocyanates. More specific examples include 4,4'-diphenylmethane diisocyanate (MDI), tolylene diisocyanate (TDI), naphthalene diisocyanate, p-phenylenedi isocyanate, trans-1,4-cyclohexane diisocyanate (CHDI), 1,3-.
- MDI 4,4'-diphenylmethane diisocyanate
- TDI tolylene diisocyanate
- naphthalene diisocyanate p-phenylenedi isocyanate
- CHDI trans-1,4-cyclohexane diisocyanate
- H12MDI 4,4'-dicyclohexylmethane diisocyanate
- H6XDI 1,3-bis- (isocyanatomethyl) -cyclohexane
- HDI hexamethylene diisocyanate
- IPDI 3-isocyana
- MDI 4,4'-diphenylmethane diisocyanate
- TDI tolylene diisocyanate
- CHDI trans-1,4-cyclohexanediisocyanate
- H12MDI 4,4'-dicyclohexylmethane diisocyanate
- Primary monoamines include aliphatic, alicyclic or aromatic monoamines.
- the aliphatic amine include saturated or unsaturated aliphatic amines of C8 to C24 , which are branched and linear, and in particular, a linear aliphatic amine is used. It is preferable to do so. Specific examples thereof include octylamine, decylamine, dodecylamine, tetradecylamine, hexadecylamine, octadecylamine, oleylamine, aniline, p-toluidine and cyclohexylamine.
- the content of the thickener in the grease composition is preferably 5% by mass or more and 40% by mass or less, and more preferably 5% by mass or more and 20% by mass or less, based on the total mass of the grease composition. preferable.
- the content of the thickener is 5% by mass or more, the grease state can be easily maintained. Further, when the content of the thickener is 40% by mass or less, the hardness of the grease composition can be appropriately maintained, and the lubricated state can be sufficiently exhibited.
- additives may be mixed if desired in order to improve various performances of the grease composition.
- antioxidants such as amine-based, phenol-based, sulfur-based, zinc dithiophosphate and zinc dithiocarbamate, sulphonic acid metal salt, ester-based, amine-based, naphthenic acid metal salt and succinic acid derivative and the like are rustproof.
- Additives used in lubricating oil such as agents, phosphorus-based, extreme pressure agents such as zinc dithiophosphate and organic molybdenum, oiliness improvers such as fatty acids and animal and vegetable oils, and metal inactivating agents such as benzotriazole alone.
- two or more types can be mixed and used. The amount of these additives added is not particularly limited as long as the object of the present invention is not impaired.
- the present invention relates to a grease composition used for a seal portion of a rolling device, but a gap between two adjacent seal lips of a seal member and a sliding surface on which the seal lips slides.
- the present invention also relates to a rolling apparatus in which the above-mentioned predetermined grease composition is enclosed in a portion.
- the rolling device is not limited to the radial bearings shown in FIGS. 1 to 3, but is a rolling device having a sealing member that closes the open end of the space formed between the pair of raceway rings. , Anything can be applied. For example, it may be a thrust bearing.
- the rolling element is not limited to the ball, and the present invention can be applied even if it is a roller.
- a grease composition having the composition shown in Table 1 below was prepared, and the obtained grease composition was sealed in a test sealing device as shown in FIG.
- the obtained test sealing device was attached to a hub seal single muddy water durability tester (manufactured by NSK Ltd.) and rotated in a muddy water tank under the test conditions shown below to achieve muddy water durability (sealing property).
- the above-mentioned test sealing device was mounted on a hub seal single torque tester (manufactured by NSK Ltd.) and rotated under the test conditions shown below to evaluate the sealing torque.
- the results are shown in Table 1 and also shown in FIG.
- the sealing property shown in Table 1 below is a relative value to the standard value set by NSK Ltd. (the result shown in Example No. 1 is "1.00"), and the larger the value, the better the sealing property. Shows that it is excellent in sex.
- the seal torques shown in Table 1 below are based on Comparative Example No. It is a relative value when the result shown in 1 is 1.00, and the smaller the value, the lower the torque.
- the "accluve" added to No. 7 contains a poly (meth) acrylate and an oil for improving handleability.
- the effective concentration in Table 1 represents the content of the poly (meth) acrylate in the additive, and the substantial polymer concentration represents the value obtained by multiplying the added amount of "Acluve" by the effective concentration.
- FIG. 4 is a graph showing the relationship between the sealing property and the sealing torque of each Example and Comparative Example.
- “ ⁇ ” indicates Example No. Represents 1 to 4.
- “ ⁇ ” is Comparative Example No. Represents 1, 2 and 4 to 6, and “ ⁇ ” is Comparative Example No. Represents 3.
- “ ⁇ ” indicates Comparative Example No. 7 is represented, and “x” represents Comparative Example No. Represents 8.
- Example No. 1 to 4 (“ ⁇ ” in FIG. 4) are Comparative Example Nos. 3 (“ ⁇ ” in FIG. 4) contains 9% by mass or 27% by mass of “Acluve A1060” or “Acluve 812” (manufactured by Sanyo Chemical Industries, Ltd.) containing poly (meth) acrylate. It is added so as to have the content of.
- Example No. As for “ ⁇ ” representing 1 to 4, the value of the sealing torque increases as the sealing property increases, indicating a trade-off relationship as shown by a straight line (solid line) in FIG.
- Example No. Nos. 1 to 4 contain poly (meth) acrylate, which is a polar polymer, in the grease composition.
- the solid lines representing 1 to 4 (“ ⁇ ” in FIG. 4) are the comparative example Nos. Since it is located above the broken lines representing 1, 2 and 4 to 6, it can be seen that both low torque and sealing performance are achieved as compared with the comparative example. That is, when compared with the same sealing torque value, the example shows higher sealing property than the comparative example, and when compared with the same sealing property, the example seal has lower sealing property than the comparative example. Shows torque.
- Comparative Example No. 7 (“ ⁇ ” in FIG. 4) is the comparative example No. 3 (“ ⁇ ” in FIG. 2) was added with “Accluve V5091” (manufactured by Sanyo Chemical Industries, Ltd.) containing poly (meth) acrylate so as to have a content of 9% by mass. It is a thing.
- Comparative Example No. The weight average molecular weight of the poly (meth) acrylate contained in the grease composition of No. 7 is 150,000. Comparative Example No. In No. 7, since the weight average molecular weight of the polar polymer exceeds the upper limit of the range of the present invention, it was not possible to obtain a result of achieving both high sealing performance and low torque.
- Comparative Example No. Reference numeral 8 (“x” in FIG. 4) indicates Comparative Example No. 3 (“ ⁇ ” in FIG. 2) is a grease composition obtained by adding the styrene isoprene polymer “Infineum SV150” (manufactured by Infinium Japan Co., Ltd.). Since the styrene isoprene polymer is a non-polar polymer having no polar group in the polymer structure, Comparative Example No. Reference numeral 8 is Comparative Example No. Although the sealing performance could be improved as compared with No. 3, the torque also increased accordingly, and it was not possible to obtain a result of achieving both high sealing performance and low torque.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Lubricants (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
ところで、近年、自動車の燃費向上のための取り組みとして、シール部材と、シール部材のシールリップが摺動する面との間の低摩擦化(低トルク化)が要求されている。
すなわち、グリース組成物が、例えば40℃での動粘度が5~40mm2/sの低粘度基油と、上記極性ポリマーとを含有することにより、低トルクを維持しつつ、シールリップの摺動面に安定的に油膜を形成することができる。
本発明は、これらの知見に基づいてなされたものである。
前記一対の軌道輪のいずれか一方における前記シールリップが摺動する摺動面と、隣り合う2つの前記シールリップと、の間の空隙部に封入される、グリース組成物であって、 基油及び極性ポリマーを含有し、
前記極性ポリマーの重量平均分子量は、5000~140000であることを特徴とする、グリース組成物。
[2] 前記基油の40℃における動粘度は、5mm2/s以上40mm2/s以下であることを特徴とする、[1]に記載のグリース組成物。
[5] 対向する一対の軌道面を有する一対の軌道輪と、前記一対の軌道面の間に転動可能に保持される複数の転動体と、前記一対の軌道輪の間に形成される空間の開口端部を塞ぐシール部材と、を有し、前記シール部材が弾性材料からなる複数のシールリップを有する転動装置であって、
前記一対の軌道輪のいずれか一方における前記シールリップが摺動する摺動面と、隣り合う2つの前記シールリップと、の間の空隙部にグリース組成物が封入されており、
前記グリース組成物は、基油及び極性ポリマーを含有し、
前記極性ポリマーの重量平均分子量は、5000~140000であることを特徴とする、転動装置。
まず、本実施形態に係る転動装置、シール装置及びシール部材について、以下に詳細に説明する。
図1は、本発明の実施形態に係る転動装置を示す断面図である。図2は、本発明の実施形態に係る転動装置におけるシール装置を拡大して示す断面図である。また、図3は、本発明の実施形態に係る転動装置におけるシール部材を拡大して示す断面図である。なお、本実施形態においては、転動装置として「車輪用転動装置」を例にして説明する。
また、各外輪軌道面8,8と内輪軌道面9,9との間には、転動体10,10が転動可能に配置されており、これにより外側軌道輪1の内側において、内側軌道輪3が回転自在に保持されている。また、外輪軌道面8と内輪軌道面9との間の隣り合う転動体10の間には、保持器11が設けられており、これにより、転動体10が低トルクで転動可能となっている。
また、スリンガ106も、断面L字形で円環状に形成されており、例えばステンレス鋼板等のように優れた耐食性を有する金属板に、プレス加工等の打ち抜き加工及び塑性加工を施すことにより一体成形されている。
その結果、外部からの塵埃、水、泥水等が軸受内部に侵入することを防止するシール性を損なうことなく、低トルク化を実現することができる。
図3に示すシール部材12bは、それぞれが円輪状に形成された芯金216と弾性部材217とを有する。芯金216は、金属板を加工して成形されたものであり、外側軌道輪1の外端部に内嵌固定されている。また、弾性部材217は弾性材料からなり、外径側サイドシールリップ218、内径側サイドシールリップ219及びラジアルシールリップ220を有する。
なお、弾性部材217の基部は、接着剤等により芯金216に接合固定されている。
したがって、シール装置14の場合と同様に、外部からの塵埃、水、泥水等が軸受内部に侵入することを防止するシール性を損なうことなく、低トルク化を実現することができる。
次に、本実施形態に係るグリース組成物について、以下に詳細に説明する。本実施形態に係るグリース組成物は、基油及び極性ポリマーを含有し、その他として増ちょう剤、及び必要により添加剤を含有する。
基油は、本実施形態に係るグリース組成物の主成分であり、例えば、基油中に添加される増ちょう剤を分散させることでグリース組成物とすることができる。
なお、本実施形態において使用される基油としては、40℃における動粘度が、5~40mm2/sである低粘度基油であることが好ましい。
従来の密閉装置に使用される低粘度基油グリースにおいては、40℃における基油の動粘度が、例えば10~40mm2/sであることが好ましいとされている。しかし、40℃における基油の動粘度が、例えば10mm2/sより小さくなると、グリース組成物の流動性が大きくなり、シールリップと摺動面との間にグリース組成物が保持されず、摺動によりグリースが霧散することがある。なお、グリースの霧散とは、グリースが細かい粒子になって放出される現象と、グリースが蒸発する現象との両方をいう。
また、極性ポリマーが界面活性剤として機能することにより、極性ポリマーの極性基と増ちょう剤との間で静電的な相互作用が働き、また非極性基と基油との間でファンデルワールス力などの相互作用が働く。その結果、増ちょう剤の基油への濡れ性を向上させることができると考えられる。
上記のような極性ポリマーの効果により、摺動時において、グリース組成物が摺動部から霧散することを抑制することができる。
一方、40℃における基油の動粘度が40mm2/s以下であると、摺動面におけるすべり摩擦抵抗の増大を抑制することができ、低トルク化を実現することができる。したがって、40℃における基油の動粘度は、40mm2/s以下であることが好ましく、20mm2/s以下であることがより好ましい。
具体的には、鉱油系潤滑基油としては、減圧蒸留、油剤脱れき、溶剤抽出、水素化分解、溶剤脱ろう、硫酸洗浄、白土精製及び水素化精製等を適宜組み合わせることにより、鉱油を精製したものを挙げることができる。
また、合成油系潤滑油基油としては、炭化水素系油、芳香族系油、エステル系油、エーテル系油、フッ素系油及びシリコーン系油等を挙げることができる。
さらに、天然油系潤滑基油としては、牛脂、豚脂、大豆油、菜種油、米ぬか油、ヤシ油、パーム油及びパーム核油等の油脂系油、並びにこれらの水素化物を挙げることができる。ただし、シール部材又はシール装置における弾性部材の材料として、例えば最も多く使用されているニトリルゴムを使用した場合には、鉱油又は合成炭化水素系油を使用することが好ましい。
本実施形態に係るグリース組成物に含有される極性ポリマーは、ポリマー構造内に極性基と非極性基を有するポリマーである。上述のとおり、グリース組成物に極性ポリマーを含有させると、極性ポリマーが有する増粘効果等によって、シールリップと摺動面との間の油膜厚さを厚くすることができる。
一方、後述する増粘剤として好適に使用される脂肪族ウレアは、PAOとの相性が良好ではなく、油分離しやすくい性質を有する。また、もともとは硬く、せん断により軟化しやすいが、耐久性は良好である。
このような基油と増粘剤とを含むグリース組成物は、優れた耐久性を有するが、濡れ性(付着性)が悪いため、所定の場所にとどまらず、霧散されやすい状態となっている。
さらに、極性ポリマーの非極性基と基油との間でファンデルワールス力などの相互作用が働き、極性ポリマーが界面活性剤のように機能するため、増ちょう剤の基油への濡れ性を向上させることができる。
そこで、この摺動部に、極性ポリマーを含有させたグリース組成物を存在させると、基油に溶解した極性ポリマーの極性基(エステル基等)と、シールリップ表面の極性基(ニトリルゴムの場合はニトリル基、アクリルゴムの場合はエステル結合等の極性基)及び摺動面における鉄分子との間で静電的な相互作用が働く。その結果、摺動時において、グリース組成物が摺動部から霧散することを抑制することができる。また、転動装置におけるシール部材12a及びシール部材12bが設けられている箇所において、低粘度基油を使用した場合でも、グリース組成物を、シールリップと摺動面との間及びその近傍に保持することができ、シール性を維持することができる。
また、極性ポリマーの極性基とは、上記非極性基以外の官能基を指し、例えばO、N、S等のような、C、H以外の元素を含み、分子内に電荷の偏りを有する官能基が挙げられる。極性基としては、例えば、ヒドロキシ基、アルコキシ基、アミノ基、アミド基、カルボニル基、カルボキシ基、シアノ基、ホルミル基、ニトロ基、スルホ基、アミド結合、ペプチド結合、ウレア結合、ウレタン結合、エステル結合等が挙げられる。
また、極性ポリマーは、本発明の効果を阻害しない限り、その他の官能基を含んでいてもよい。
なお、上記列挙した極性ポリマーのうち、ポリメタクリレート及びポリアクリレートのうち少なくとも1種を使用することが、トルクとシール性の観点から、より好ましい。
一方、極性ポリマーの重量平均分子量が140000を超えると、グリース組成物の粘度が高くなりすぎて、極性ポリマーをグリース組成物中に均一に分散することが困難になるとともに、極性ポリマーをシールリップと摺動面との間に侵入させることが困難になり、油膜厚さを向上させる効果を得ることができない。したがって、極性ポリマーの重量平均分子量は140000以下とし、50000以下であることが好ましい。
一方、極性ポリマーの含有量が、グリース組成物全質量に対して30質量%以下であると、グリース組成物の粘度が高くなりすぎず、トルクの上昇を抑制することができる。したがって、極性ポリマーの含有量は、グリース組成物全質量に対して30質量%以下であることが好ましく、28質量%以下であることがより好ましく、25質量%以下であることが更に好ましい。
増ちょう剤は、基油中に分散して三次元構造を形成し、基油を三次元構造中に保持することにより、半固体状にする作用を有する成分であり、グリース組成物中に含有させることができる。
これらの増ちょう剤は、単独又は混合物として用いることができる。
本実施形態においては、グリース組成物の各種性能を向上させるため、所望により種々の添加剤を混合してもよい。
添加剤としては、アミン系、フェノール系、硫黄系、ジチオリン酸亜鉛及びジチオカルバミン酸亜鉛等の酸化防止剤、スルフォン酸金属塩、エステル系、アミン系、ナフテン酸金属塩及びコハク酸誘導体等の防錆剤、リン系、ジチオリン酸亜鉛及び有機モリブデン等の極圧剤、脂肪酸及び動植物油等の油性向上剤、並びにベンゾトリアゾール等の金属不活性化剤等、潤滑油に使用される添加剤を、単独又は2種以上混合して用いることができる。
なお、これら添加剤の添加量は、本発明の目的を損なわない程度であれば特に限定されるものではない。
なお、転動装置としては、図1~図3に記載したラジアル軸受に限定されず、一対の軌道輪の間に形成される空間の開口端部を塞ぐシール部材を有する転動装置であれば、どのようなものでも適用することができる。例えば、スラスト軸受であってもよい。また、転動体は玉に限定されず、ころであっても本発明を適用することができる。
また、表1において、実施例No.1~4及び比較例No.7に添加されている「アクルーブ」には、ポリ(メタ)アクリレートと、ハンドリング性向上のための油とが含まれる。表1中の有効濃度とは、添加剤中のポリ(メタ)アクリレートの含有量を表し、実質ポリマー濃度とは、「アクルーブ」の添加量に有効濃度を乗じることにより得られた値を表す。
(シール単体泥水耐久試験条件)
・シールサイズ:内径61mm、外径75mm
・回転速度:1000min-1
・軸偏心量(TIR:Total Indicator Reading):0.2mm
・泥水組成:JIS8種ダスト20%含有
・雰囲気温度:室温
(シール単体トルク試験条件)
・シールサイズ:内径61mm、外径75mm
・回転速度:1000min-1
・雰囲気温度:室温
図4は、各実施例及び比較例のシール性とシールトルクとの関係を示すグラフである。なお、図4において、「○」は実施例No.1~4を表す。また、「□」は比較例No.1、2及び4~6を表し、「◇」は比較例No.3を表す。さらに、「△」は比較例No.7を表し、「×」は比較例No.8を表す。
また、実施例No.1~4(図4の「○」)は、比較例No.3(図4の「◇」)のグリース組成物に、ポリ(メタ)アクリレートが含有された「アクルーブA1060」又は「アクルーブ812」(三洋化成工業株式会社製)を、9質量%又は27質量%の含有量となるように添加したものである。実施例No.1~4を表す「○」についても、シール性が上昇するに従って、シールトルクの値は上昇し、図4中の直線(実線)で示されるようなトレードオフの関係を示している。
すなわち、同じシールトルクの値で比較した場合には、比較例よりも実施例の方が高いシール性を示し、同じシール性で比較した場合には、比較例よりも実施例の方が低いシールトルクを示している。
比較例No.7は、極性ポリマーの重量平均分子量が本発明範囲の上限を超えているため、高いシール性と低トルクとを両立する結果を得ることはできなかった。
スチレンイソプレンポリマーは、ポリマー構造内に極性基を有さない非極性ポリマーであるため、比較例No.8は、比較例No.3と比較してシール性を向上させることができたが、それに伴いトルクも上昇してしまい、高いシール性と低トルクとを両立する結果を得ることはできなかった。
3 内側軌道輪
4 ハブ
5 内輪
8 外輪軌道面
9 内輪軌道面
10 転動体
12a,12b シール部材
14 シール装置
20 転動装置
106 スリンガ
107,217 弾性部材
110,216 芯金
114,115,116,218,219,220 シールリップ
121,122,221,222 空隙部
Claims (5)
- 対向する一対の軌道面を有する一対の軌道輪と、前記一対の軌道面の間に転動可能に保持される複数の転動体と、前記一対の軌道輪の間に形成される空間の開口端部を塞ぐシール部材と、を有し、前記シール部材が弾性材料からなる複数のシールリップを有する転動装置に用いられ、
前記一対の軌道輪のいずれか一方における前記シールリップが摺動する摺動面と、隣り合う2つの前記シールリップと、の間の空隙部に封入される、グリース組成物であって、
基油及び極性ポリマーを含有し、
前記極性ポリマーの重量平均分子量は、5000~140000であることを特徴とする、グリース組成物。 - 前記基油の40℃における動粘度は、5mm2/s以上40mm2/s以下であることを特徴とする、請求項1に記載のグリース組成物。
- 前記極性ポリマーは、ポリアクリレート、ポリメタクリレート、スチレン-無水マレイン酸共重合体、オレフィン-無水マレイン酸共重合体、ポリウレタン、ポリエステル及びエチレンオキシド-プロピレンオキシド共重合体から選択された少なくとも1種であることを特徴とする、請求項1又は2に記載のグリース組成物。
- 前記極性ポリマーは、ポリアクリレート及びポリメタクリレートから選択された少なくとも1種であることを特徴とする、請求項3に記載のグリース組成物。
- 対向する一対の軌道面を有する一対の軌道輪と、前記一対の軌道面の間に転動可能に保持される複数の転動体と、前記一対の軌道輪の間に形成される空間の開口端部を塞ぐシール部材と、を有し、前記シール部材が弾性材料からなる複数のシールリップを有する転動装置であって、
前記一対の軌道輪のいずれか一方における前記シールリップが摺動する摺動面と、隣り合う2つの前記シールリップと、の間の空隙部にグリース組成物が封入されており、
前記グリース組成物は、基油及び極性ポリマーを含有し、
前記極性ポリマーの重量平均分子量は、5000~140000であることを特徴とする、転動装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022543586A JP7251693B2 (ja) | 2020-11-20 | 2021-11-19 | グリース組成物及び転動装置 |
EP21894753.9A EP4249575A4 (en) | 2020-11-20 | 2021-11-19 | GREASE COMPOSITION AND BEARING DEVICE |
CN202180078268.5A CN116568784A (zh) | 2020-11-20 | 2021-11-19 | 润滑脂组合物及滚动装置 |
US18/037,699 US20240026927A1 (en) | 2020-11-20 | 2021-11-19 | Grease composition and rolling device |
JP2022212140A JP2023054798A (ja) | 2020-11-20 | 2022-12-28 | グリース組成物及び転動装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020193495 | 2020-11-20 | ||
JP2020-193495 | 2020-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022107882A1 true WO2022107882A1 (ja) | 2022-05-27 |
Family
ID=81709112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/042603 WO2022107882A1 (ja) | 2020-11-20 | 2021-11-19 | グリース組成物及び転動装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240026927A1 (ja) |
EP (1) | EP4249575A4 (ja) |
JP (2) | JP7251693B2 (ja) |
CN (1) | CN116568784A (ja) |
WO (1) | WO2022107882A1 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010174117A (ja) * | 2009-01-29 | 2010-08-12 | Sumico Lubricant Co Ltd | グリース組成物 |
JP2012107758A (ja) | 2004-12-16 | 2012-06-07 | Uchiyama Manufacturing Corp | 回転部材のシール構造 |
JP2012193835A (ja) | 2011-03-18 | 2012-10-11 | Nok Corp | 密封装置 |
JP2013129794A (ja) * | 2011-12-22 | 2013-07-04 | Showa Shell Sekiyu Kk | グリース組成物 |
JP2015075180A (ja) * | 2013-10-09 | 2015-04-20 | 日本精工株式会社 | ハブユニット軸受 |
JP2019172984A (ja) * | 2018-03-27 | 2019-10-10 | 三洋化成工業株式会社 | グリース用摩擦調整剤及びグリース組成物 |
JP2020193495A (ja) | 2019-05-29 | 2020-12-03 | 積水樹脂株式会社 | カバー体 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008032116A (ja) * | 2006-07-28 | 2008-02-14 | Ntn Corp | グリース密封型転がり軸受 |
JP2008120855A (ja) * | 2006-11-08 | 2008-05-29 | Ntn Corp | 一方向クラッチ |
JP5383392B2 (ja) * | 2009-08-31 | 2014-01-08 | コスモ石油ルブリカンツ株式会社 | グリース組成物 |
-
2021
- 2021-11-19 US US18/037,699 patent/US20240026927A1/en active Pending
- 2021-11-19 CN CN202180078268.5A patent/CN116568784A/zh active Pending
- 2021-11-19 EP EP21894753.9A patent/EP4249575A4/en active Pending
- 2021-11-19 WO PCT/JP2021/042603 patent/WO2022107882A1/ja active Application Filing
- 2021-11-19 JP JP2022543586A patent/JP7251693B2/ja active Active
-
2022
- 2022-12-28 JP JP2022212140A patent/JP2023054798A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012107758A (ja) | 2004-12-16 | 2012-06-07 | Uchiyama Manufacturing Corp | 回転部材のシール構造 |
JP2010174117A (ja) * | 2009-01-29 | 2010-08-12 | Sumico Lubricant Co Ltd | グリース組成物 |
JP2012193835A (ja) | 2011-03-18 | 2012-10-11 | Nok Corp | 密封装置 |
JP2013129794A (ja) * | 2011-12-22 | 2013-07-04 | Showa Shell Sekiyu Kk | グリース組成物 |
JP2015075180A (ja) * | 2013-10-09 | 2015-04-20 | 日本精工株式会社 | ハブユニット軸受 |
JP2019172984A (ja) * | 2018-03-27 | 2019-10-10 | 三洋化成工業株式会社 | グリース用摩擦調整剤及びグリース組成物 |
JP2020193495A (ja) | 2019-05-29 | 2020-12-03 | 積水樹脂株式会社 | カバー体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4249575A4 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022107882A1 (ja) | 2022-05-27 |
US20240026927A1 (en) | 2024-01-25 |
CN116568784A (zh) | 2023-08-08 |
EP4249575A1 (en) | 2023-09-27 |
JP2023054798A (ja) | 2023-04-14 |
EP4249575A4 (en) | 2024-05-01 |
JP7251693B2 (ja) | 2023-04-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7042375B2 (ja) | ハブユニット | |
JP6646379B2 (ja) | グリース組成物およびグリース封入転がり軸受 | |
WO2013031705A1 (ja) | グリース組成物及び転動装置 | |
WO2012090722A1 (ja) | グリース組成物、グリース封入軸受、自在継手および直動装置 | |
JPWO2006070893A1 (ja) | 伸縮軸 | |
JP6736041B2 (ja) | グリース組成物および車両用転動装置 | |
WO2022107882A1 (ja) | グリース組成物及び転動装置 | |
WO2016114380A1 (ja) | 転がり軸受 | |
JP2015206434A (ja) | 転動装置用シール部材 | |
JP6722379B2 (ja) | 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 | |
JP2018065971A (ja) | グリース組成物および当該グリース組成物が封入された転がり軸受 | |
JP2006300260A (ja) | 伸縮軸 | |
JP2010059369A (ja) | グリース組成物、該グリース組成物を封入した転がり軸受および自在継手 | |
JP2008127404A (ja) | 転がり軸受 | |
JP2009173795A (ja) | 潤滑剤組成物、転がり支持装置 | |
JP7419012B2 (ja) | 車軸用軸受 | |
JP5685141B2 (ja) | グリース組成物、グリース封入軸受、自在継手および直動装置 | |
WO2022210531A1 (ja) | 密封型転がり軸受 | |
JP2007078120A (ja) | トリポード型等速自在継手 | |
JP2005132900A (ja) | グリース組成物及び転がり軸受 | |
JP7350608B2 (ja) | グリース組成物および転がり玉軸受 | |
WO2023048120A1 (ja) | 潤滑剤組成物および転がり軸受 | |
JP2018168332A (ja) | グリース組成物、転がり軸受、およびハブベアリング | |
JP2008285574A (ja) | ころ軸受 | |
JP2022155414A (ja) | 密封型転がり軸受 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21894753 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022543586 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18037699 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180078268.5 Country of ref document: CN |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112023009621 Country of ref document: BR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021894753 Country of ref document: EP Effective date: 20230620 |
|
ENP | Entry into the national phase |
Ref document number: 112023009621 Country of ref document: BR Kind code of ref document: A2 Effective date: 20230518 |