JP2006029347A - 自動車電装補機用転がり軸受 - Google Patents
自動車電装補機用転がり軸受 Download PDFInfo
- Publication number
- JP2006029347A JP2006029347A JP2004204117A JP2004204117A JP2006029347A JP 2006029347 A JP2006029347 A JP 2006029347A JP 2004204117 A JP2004204117 A JP 2004204117A JP 2004204117 A JP2004204117 A JP 2004204117A JP 2006029347 A JP2006029347 A JP 2006029347A
- Authority
- JP
- Japan
- Prior art keywords
- grease
- rolling bearing
- automotive electrical
- rolling
- urea
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 57
- 239000004519 grease Substances 0.000 claims abstract description 83
- 239000004202 carbamide Substances 0.000 claims abstract description 40
- -1 urea compound Chemical class 0.000 claims abstract description 28
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 12
- 238000004132 cross linking Methods 0.000 claims abstract description 10
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims abstract description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001973 fluoroelastomer Polymers 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 25
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 17
- 239000011737 fluorine Substances 0.000 claims description 17
- 229910052731 fluorine Inorganic materials 0.000 claims description 17
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- DMUPYMORYHFFCT-UPHRSURJSA-N (z)-1,2,3,3,3-pentafluoroprop-1-ene Chemical compound F\C=C(/F)C(F)(F)F DMUPYMORYHFFCT-UPHRSURJSA-N 0.000 claims description 3
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims description 3
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- QAERDLQYXMEHEB-UHFFFAOYSA-N 1,1,3,3,3-pentafluoroprop-1-ene Chemical group FC(F)=CC(F)(F)F QAERDLQYXMEHEB-UHFFFAOYSA-N 0.000 claims description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 claims 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 18
- 238000012360 testing method Methods 0.000 description 17
- 239000003921 oil Substances 0.000 description 16
- 239000002199 base oil Substances 0.000 description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 13
- 238000002156 mixing Methods 0.000 description 9
- 239000002562 thickening agent Substances 0.000 description 9
- 238000004073 vulcanization Methods 0.000 description 9
- 239000010696 ester oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 239000010702 perfluoropolyether Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920013639 polyalphaolefin Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000002480 mineral oil Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 3
- 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 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229920000800 acrylic rubber Polymers 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- 108010054404 Adenylyl-sulfate kinase Proteins 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-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
- 229920001774 Perfluoroether Polymers 0.000 description 1
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 1
- 239000004147 Sorbitan trioleate Substances 0.000 description 1
- 102100039024 Sphingosine kinase 1 Human genes 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 125000006840 diphenylmethane group Chemical group 0.000 description 1
- NCXUIEDQTCQZRK-UHFFFAOYSA-L disodium;decanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CCCCCCCCC([O-])=O NCXUIEDQTCQZRK-UHFFFAOYSA-L 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 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
- 238000001125 extrusion Methods 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
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 150000004714 phosphonium salts Chemical class 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
- 229920000728 polyester Polymers 0.000 description 1
- 229940114930 potassium stearate Drugs 0.000 description 1
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical compound [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 229960000391 sorbitan trioleate Drugs 0.000 description 1
- 235000019337 sorbitan trioleate Nutrition 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 150000004992 toluidines Chemical class 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004204117A JP2006029347A (ja) | 2004-07-12 | 2004-07-12 | 自動車電装補機用転がり軸受 |
| US11/032,321 US20050152628A1 (en) | 2004-01-14 | 2005-01-10 | Rolling bearing for use in vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004204117A JP2006029347A (ja) | 2004-07-12 | 2004-07-12 | 自動車電装補機用転がり軸受 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006029347A true JP2006029347A (ja) | 2006-02-02 |
| JP2006029347A5 JP2006029347A5 (enExample) | 2007-05-24 |
Family
ID=35895959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004204117A Pending JP2006029347A (ja) | 2004-01-14 | 2004-07-12 | 自動車電装補機用転がり軸受 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006029347A (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016132754A (ja) * | 2015-01-21 | 2016-07-25 | ダイキン工業株式会社 | 転がり軸受用シール部材、成形品、及び、ウレア化合物による成形品の硬化又は膨潤を防止又は低減する方法 |
| JP7221470B1 (ja) * | 2021-10-25 | 2023-02-13 | ミネベアミツミ株式会社 | 転がり軸受、ピボットアッシー軸受、およびディスク駆動装置 |
| WO2023074695A1 (ja) * | 2021-10-25 | 2023-05-04 | ミネベアミツミ株式会社 | 転がり軸受、ピボットアッシー軸受、およびディスク駆動装置 |
| US12534680B2 (en) | 2021-10-25 | 2026-01-27 | Minebea Mitsumi Inc. | Grease composition, pivot assembly bearing, and bearing apparatus including the bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001065578A (ja) * | 1999-08-25 | 2001-03-16 | Nsk Ltd | グリースを封入した密封板付転がり軸受 |
| WO2002092683A1 (en) * | 2001-05-15 | 2002-11-21 | Dupont Dow Elastomers L.L.C. | Curable base-resistant fluoroelastomers |
| JP2004028326A (ja) * | 2002-04-15 | 2004-01-29 | Nsk Ltd | 転がり軸受 |
-
2004
- 2004-07-12 JP JP2004204117A patent/JP2006029347A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001065578A (ja) * | 1999-08-25 | 2001-03-16 | Nsk Ltd | グリースを封入した密封板付転がり軸受 |
| WO2002092683A1 (en) * | 2001-05-15 | 2002-11-21 | Dupont Dow Elastomers L.L.C. | Curable base-resistant fluoroelastomers |
| JP2004028326A (ja) * | 2002-04-15 | 2004-01-29 | Nsk Ltd | 転がり軸受 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016132754A (ja) * | 2015-01-21 | 2016-07-25 | ダイキン工業株式会社 | 転がり軸受用シール部材、成形品、及び、ウレア化合物による成形品の硬化又は膨潤を防止又は低減する方法 |
| JP7221470B1 (ja) * | 2021-10-25 | 2023-02-13 | ミネベアミツミ株式会社 | 転がり軸受、ピボットアッシー軸受、およびディスク駆動装置 |
| WO2023074695A1 (ja) * | 2021-10-25 | 2023-05-04 | ミネベアミツミ株式会社 | 転がり軸受、ピボットアッシー軸受、およびディスク駆動装置 |
| JP2023064104A (ja) * | 2021-10-25 | 2023-05-10 | ミネベアミツミ株式会社 | 転がり軸受、ピボットアッシー軸受、およびディスク駆動装置 |
| US12534680B2 (en) | 2021-10-25 | 2026-01-27 | Minebea Mitsumi Inc. | Grease composition, pivot assembly bearing, and bearing apparatus including the bearing |
| US12534681B2 (en) | 2021-10-25 | 2026-01-27 | Minebea Mitsumi Inc. | Rolling bearing, pivot assembly bearing, and disk drive apparatus |
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