JP2005308117A - 転がり軸受 - Google Patents
転がり軸受 Download PDFInfo
- Publication number
- JP2005308117A JP2005308117A JP2004126814A JP2004126814A JP2005308117A JP 2005308117 A JP2005308117 A JP 2005308117A JP 2004126814 A JP2004126814 A JP 2004126814A JP 2004126814 A JP2004126814 A JP 2004126814A JP 2005308117 A JP2005308117 A JP 2005308117A
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- bearing
- rolling bearing
- seal
- rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- 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
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
【解決手段】 シール部材6のリップ10が、シール溝9との摺接面13に少なくとも一つの突起14を有しており、突起14の少なくとも基端部14Aが、突起14の先端部に向かうに従って先細状に形成されている。
【選択図】 図1
Description
前記シール部材のシールリップが、前記シール溝との摺接面に少なくとも1つの突起を有しており、
前記突起が、先端部に向かうに従って先細状に形成されていることを特徴とする転がり軸受。
図1は本発明の実施形態に係る転がり軸受の断面図、図2は図1における点線円IIで囲まれた部分の拡大図、図3は図1におけるシールリップの要部拡大図、図4は図2における点線円IVで囲まれた部分の拡大図、図5は図1におけるシールリップの摺接面に設けられた突起の変形例を示す要部拡大図である。
2.上記1の転がり軸受において、軸受の回転初期からの時間経過に伴いグリースが安定位置に定着た後には、前記突起が磨耗して消滅してシール部材による密封性・耐水性を向上させるように、前記突起の高さおよび径を規定した。
3.上記1および/または2の軸受において、前記突起の形状を工夫することにより、前記突起が折損して大きな折損片が発生することがないように徐々に磨耗するように前記突起の形状を工夫した。
2 内輪
3 外輪
4 転動体
5 保持器
6 シール部材
9 シール溝
9a 外側面
13 シールリップ
13a 摺接面
14 突起
14A 基端部
20 突起
Claims (3)
- 外輪と、内輪と、前記外輪と前記内輪との間で周方向に転動自在に配設された複数の転動体と、前記外輪と前記内輪のいずれか一方に形成されたシール溝にシールリップを摺接させ且つ前記外輪と前記内輪の他方に装着されたシール部材と、を備える転がり軸受であって、
前記シール部材のシールリップが、前記シール溝との摺接面に少なくとも1つの突起を有しており、
前記突起が、先端部に向かうに従って先細状に形成されていることを特徴とする転がり軸受。 - 前記突起が、略円柱状に形成されており、
前記突起の基端部が、当該突起の外周面と前記リップの摺接面とを滑らかに接続する湾曲面を有することを特徴とする請求項1記載の転がり軸受。 - 前記突起が、略半球状に形成されていることを特徴とする請求項1記載の転がり軸受。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004126814A JP2005308117A (ja) | 2004-04-22 | 2004-04-22 | 転がり軸受 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004126814A JP2005308117A (ja) | 2004-04-22 | 2004-04-22 | 転がり軸受 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005308117A true JP2005308117A (ja) | 2005-11-04 |
Family
ID=35437114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004126814A Pending JP2005308117A (ja) | 2004-04-22 | 2004-04-22 | 転がり軸受 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2005308117A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007271078A (ja) * | 2006-03-06 | 2007-10-18 | Ntn Corp | 玉軸受の保持器 |
DE112008000271T5 (de) | 2007-01-30 | 2009-12-31 | Ntn Corp. | Kugellagerkäfig und Verfahren zum Herstellen eines Kugellagerkäfigs |
WO2010052865A1 (ja) * | 2008-11-06 | 2010-05-14 | Ntn株式会社 | シール付き軸受 |
US9217472B2 (en) | 2008-11-06 | 2015-12-22 | Ntn Corporation | Seal equipped bearing assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1113771A (ja) * | 1997-06-25 | 1999-01-22 | Nippon Seiko Kk | シールリング付転がり軸受 |
JP2000257640A (ja) * | 1999-03-05 | 2000-09-19 | Nsk Ltd | テンショナ用軸受のシール構造 |
JP2003166549A (ja) * | 2001-11-28 | 2003-06-13 | Koyo Seiko Co Ltd | 転がり軸受の密封装置 |
-
2004
- 2004-04-22 JP JP2004126814A patent/JP2005308117A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1113771A (ja) * | 1997-06-25 | 1999-01-22 | Nippon Seiko Kk | シールリング付転がり軸受 |
JP2000257640A (ja) * | 1999-03-05 | 2000-09-19 | Nsk Ltd | テンショナ用軸受のシール構造 |
JP2003166549A (ja) * | 2001-11-28 | 2003-06-13 | Koyo Seiko Co Ltd | 転がり軸受の密封装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007271078A (ja) * | 2006-03-06 | 2007-10-18 | Ntn Corp | 玉軸受の保持器 |
DE112007000534T5 (de) | 2006-03-06 | 2009-01-15 | Ntn Corp. | Käfig für Lageranordnung |
US7988365B2 (en) | 2006-03-06 | 2011-08-02 | Ntn Corporation | Cage for a bearing assembly |
DE112008000271T5 (de) | 2007-01-30 | 2009-12-31 | Ntn Corp. | Kugellagerkäfig und Verfahren zum Herstellen eines Kugellagerkäfigs |
US8317404B2 (en) | 2007-01-30 | 2012-11-27 | Ntn Corporation | Bearing ball cage and method of making the same |
DE112008000271B4 (de) * | 2007-01-30 | 2021-06-17 | Ntn Corp. | Kugellagerkäfig |
WO2010052865A1 (ja) * | 2008-11-06 | 2010-05-14 | Ntn株式会社 | シール付き軸受 |
JP2010112472A (ja) * | 2008-11-06 | 2010-05-20 | Ntn Corp | シール付き軸受 |
US9217472B2 (en) | 2008-11-06 | 2015-12-22 | Ntn Corporation | Seal equipped bearing assembly |
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