JP2012193835A - 密封装置 - Google Patents
密封装置 Download PDFInfo
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- JP2012193835A JP2012193835A JP2011060410A JP2011060410A JP2012193835A JP 2012193835 A JP2012193835 A JP 2012193835A JP 2011060410 A JP2011060410 A JP 2011060410A JP 2011060410 A JP2011060410 A JP 2011060410A JP 2012193835 A JP2012193835 A JP 2012193835A
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- Prior art keywords
- lip
- sealing device
- seal lip
- seal
- grease
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 239000004519 grease Substances 0.000 claims abstract description 48
- 239000002199 base oil Substances 0.000 claims abstract description 32
- 230000013011 mating Effects 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000003746 surface roughness Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000013013 elastic material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000843 powder Substances 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for 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
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/02—Specified values of viscosity or viscosity index
-
- 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
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
-
- 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
- F16J15/3248—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
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/54—Surface roughness
-
- 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
- F16C2326/00—Articles relating to transporting
- F16C2326/20—Land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Sealing Of Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Lubricants (AREA)
Abstract
【解決手段】相手部材に摺動自在に密接するシールリップを有する密封装置において、前記摺動における摩擦力の低減およびリップ摩耗の抑制を同時に実現すべく前記シールリップの摺動面に凹凸を付与するとともに前記シールリップの摺動面に低基油粘度グリースを供給することを特徴とする。凹凸は、1.0〜3.0μmRaの大きさとし、低基油粘度グリースは、40℃での基油動粘度が10〜40mm2/sのグリースとするのが望ましい。
【選択図】図1
Description
(1)本発明は、図1に示すように、シールのリップ部に凹凸を付与し、低基油粘度グリースが充填されていることを特徴とする。
(2)本発明は、ベアリンググリースシールの低トルク化方法に関わり、スリンガに摺接するシールリップ部表面の粗さをRa=1.0〜3.0μm、より実用面を考慮すれば1.5〜3.0μmに調節とする点に特徴を有する。さらに低基油粘度のグリースを併用することで、トルクは一層低下する。
(3)本発明は、ゴム側の表面粗さを調整する点で、先行技術文献記載の発明とは手法が異なる。ゴムリップ側の表面粗さを大きくすることで低トルク化が達成されるが、これと摺接する金属部材側の表面粗さは通常の仕上げ面であるためリップが摩耗しないという利点がある。また、リップの粗さは金型表面を所定の表面粗さに仕上げることでこれを転写して成形されるので、粗さ品質が一定に確保できる利点もある。尚、相手金属部材との摺接によりゴムリップ表面は大きく弾性変形するので、これまで行なわれてきた金属部材側に形成する表面の粗さとは異なる数値範囲がゴムの場合の最適範囲になる。本発明の実施例から明らかなように、この最適範囲は先行技術文献記載の発明から容易に想到できるものではない。
11a,22a 筒状部
11b,22b フランジ部
11c,11d 端面
21 シールリップ部材
22 取付環
23 ゴム状弾性体
24 被着ゴム部
25,26,27 シールリップ
25a,26a,27a 摺動面
31,32 空間
A,B,C 凹凸付与領域
Claims (5)
- 相手部材に摺動自在に密接するシールリップを有する密封装置において、
前記摺動における摩擦力の低減およびリップ摩耗の抑制を同時に実現すべく前記シールリップの摺動面に凹凸を付与するとともに前記シールリップの摺動面に低基油粘度グリースを供給することを特徴とする密封装置。 - 請求項1記載の密封装置において、
前記相手部材は、筒状部の軸方向一端から径方向外方へ向けてフランジ部を一体成形した半裁断面ほぼL字形のスリンガーであり、
前記シールリップは、前記フランジ部の端面に摺動自在に密接する第1シールリップと、前記筒状部の外周面に摺動自在に密接する第2シールリップと、前記第2シールリップの内側で同じく前記筒状部の外周面に摺動自在に密接する第3シールリップと、を備え、
前記3つのシールリップの摺動面にそれぞれ前記凹凸が付与されるとともに前記3つのシールリップ間の空間にそれぞれ前記低基油粘度グリースが充填されることを特徴とする密封装置。 - 請求項1または2記載の密封装置において、
前記凹凸は、1.0〜3.0μmRaの大きさであることを特徴とする密封装置。 - 請求項1または2記載の密封装置において、
前記凹凸は、1.5〜3.0μmRaの大きさであることを特徴とする密封装置。 - 請求項1、2、3または4記載の密封装置において、
前記低基油粘度グリースは、40℃での基油動粘度が10〜40mm2/sのグリースであることを特徴とする密封装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011060410A JP5757455B2 (ja) | 2011-03-18 | 2011-03-18 | 密封装置 |
CN2012800134378A CN103459902A (zh) | 2011-03-18 | 2012-01-19 | 密封装置 |
EP12760861.0A EP2687761B1 (en) | 2011-03-18 | 2012-01-19 | Sealing device |
PCT/JP2012/051023 WO2012127895A1 (ja) | 2011-03-18 | 2012-01-19 | 密封装置 |
CN201810171228.5A CN108286609A (zh) | 2011-03-18 | 2012-01-19 | 密封装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011060410A JP5757455B2 (ja) | 2011-03-18 | 2011-03-18 | 密封装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012193835A true JP2012193835A (ja) | 2012-10-11 |
JP5757455B2 JP5757455B2 (ja) | 2015-07-29 |
Family
ID=46879065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011060410A Active JP5757455B2 (ja) | 2011-03-18 | 2011-03-18 | 密封装置 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2687761B1 (ja) |
JP (1) | JP5757455B2 (ja) |
CN (2) | CN108286609A (ja) |
WO (1) | WO2012127895A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017101750A (ja) * | 2015-12-02 | 2017-06-08 | Nok株式会社 | 密封装置用補助シール |
JP2017166497A (ja) * | 2016-03-14 | 2017-09-21 | 光洋シーリングテクノ株式会社 | 密封部材 |
JP2018071603A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP2018071605A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP2018071604A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP2020003052A (ja) * | 2018-07-02 | 2020-01-09 | 光洋シーリングテクノ株式会社 | 密封装置 |
WO2022107882A1 (ja) | 2020-11-20 | 2022-05-27 | 日本精工株式会社 | グリース組成物及び転動装置 |
WO2022264910A1 (ja) * | 2021-06-14 | 2022-12-22 | Ntn株式会社 | シール付軸受 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5924239B2 (ja) * | 2012-11-09 | 2016-05-25 | 株式会社デンソー | 防振ブッシュ及び電子装置 |
EP3269989B1 (en) * | 2015-03-09 | 2021-07-21 | NTN Corporation | Sealed bearing |
CN109983244B (zh) * | 2016-11-25 | 2021-02-26 | Nok株式会社 | 密封装置以及轮毂轴承 |
JP2018084301A (ja) * | 2016-11-25 | 2018-05-31 | 内山工業株式会社 | オイルシール及びオイルシールの製造方法 |
JP6520976B2 (ja) | 2017-03-22 | 2019-05-29 | 株式会社ジェイテクト | 密封型スラスト軸受 |
CN109505862A (zh) * | 2019-01-08 | 2019-03-22 | 湖北新火炬科技有限公司 | 一种新密封的汽车轮毂轴承 |
JP2024511314A (ja) | 2021-03-23 | 2024-03-13 | ユチンソン | シール組立体およびそのような組立体を備える転がり軸受 |
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JP2008069882A (ja) * | 2006-09-14 | 2008-03-27 | Ntn Corp | グリース封入密封型転がり軸受 |
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JP2010078140A (ja) * | 2008-08-29 | 2010-04-08 | Uchiyama Manufacturing Corp | 密封装置 |
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2011
- 2011-03-18 JP JP2011060410A patent/JP5757455B2/ja active Active
-
2012
- 2012-01-19 EP EP12760861.0A patent/EP2687761B1/en active Active
- 2012-01-19 WO PCT/JP2012/051023 patent/WO2012127895A1/ja unknown
- 2012-01-19 CN CN201810171228.5A patent/CN108286609A/zh active Pending
- 2012-01-19 CN CN2012800134378A patent/CN103459902A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006064908A1 (ja) * | 2004-12-16 | 2006-06-22 | Uchiyama Manufacturing Corp. | 回転部材のシール構造 |
JP2008069882A (ja) * | 2006-09-14 | 2008-03-27 | Ntn Corp | グリース封入密封型転がり軸受 |
WO2009144785A1 (ja) * | 2008-05-27 | 2009-12-03 | 日本精工株式会社 | 転がり軸受 |
JP2010078140A (ja) * | 2008-08-29 | 2010-04-08 | Uchiyama Manufacturing Corp | 密封装置 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017101750A (ja) * | 2015-12-02 | 2017-06-08 | Nok株式会社 | 密封装置用補助シール |
JP2017166497A (ja) * | 2016-03-14 | 2017-09-21 | 光洋シーリングテクノ株式会社 | 密封部材 |
JP2018071603A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP2018071605A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP2018071604A (ja) * | 2016-10-26 | 2018-05-10 | Nok株式会社 | 密封装置 |
JP7049053B2 (ja) | 2016-10-26 | 2022-04-06 | Nok株式会社 | 密封装置 |
JP2020003052A (ja) * | 2018-07-02 | 2020-01-09 | 光洋シーリングテクノ株式会社 | 密封装置 |
JP7164335B2 (ja) | 2018-07-02 | 2022-11-01 | 光洋シーリングテクノ株式会社 | 密封装置 |
WO2022107882A1 (ja) | 2020-11-20 | 2022-05-27 | 日本精工株式会社 | グリース組成物及び転動装置 |
WO2022264910A1 (ja) * | 2021-06-14 | 2022-12-22 | Ntn株式会社 | シール付軸受 |
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WO2012127895A1 (ja) | 2012-09-27 |
CN103459902A (zh) | 2013-12-18 |
JP5757455B2 (ja) | 2015-07-29 |
EP2687761A4 (en) | 2015-05-27 |
CN108286609A (zh) | 2018-07-17 |
EP2687761A1 (en) | 2014-01-22 |
EP2687761B1 (en) | 2018-01-03 |
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