JP5122412B2 - 軸受装置 - Google Patents
軸受装置 Download PDFInfo
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- JP5122412B2 JP5122412B2 JP2008243210A JP2008243210A JP5122412B2 JP 5122412 B2 JP5122412 B2 JP 5122412B2 JP 2008243210 A JP2008243210 A JP 2008243210A JP 2008243210 A JP2008243210 A JP 2008243210A JP 5122412 B2 JP5122412 B2 JP 5122412B2
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- 230000002093 peripheral effect Effects 0.000 claims description 135
- 238000005096 rolling process Methods 0.000 claims description 85
- 239000002184 metal Substances 0.000 description 43
- 229910052751 metal Inorganic materials 0.000 description 43
- 230000001154 acute effect Effects 0.000 description 22
- 238000007789 sealing Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 102220259718 rs34120878 Human genes 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
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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
- F16C33/7869—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
- F16C33/7873—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 single sealing ring of generally L-shaped cross-section
- F16C33/7876—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 single sealing ring of generally L-shaped cross-section with sealing lips
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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
- F16C33/768—Sealings of ball or roller bearings between relatively stationary parts, i.e. static seals
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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
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- 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
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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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/10—Force connections, e.g. clamping
-
- 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
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Description
図9に示すように、シール装置100は、転がり軸受装置の固定体103に固定される固定側芯金101と、固定側芯金101に固定される弾性シール体102とにより構成されている。弾性シール体102は、転がり軸受装置の内輪104と摺接することにより、固定体103と内輪104との間が密封されている。
図1〜図5を参照して、本発明の軸受装置について、この軸受装置を、車両の車体に取り付けられた車軸を回転可能に支持する転がり軸受装置として具体化した第1の実施形態について説明する。
図5に示すように、車体側シール6は、回転体2に固定される回転側芯金61と、固定体3に固定される固定側芯金62と、固定側芯金62に固定される弾性シール体63とにより構成されている。
(1)本実施形態の転がり軸受装置1では、車外側シール7の嵌合面721dにおいて、軸方向の外側である転動体4から離れる方向、即ち、軸方向の車外側に向かうにしたがい、固定体3の内周面36に向かい、即ち、径方向の外側に向かい突出する第2傾斜面721fが設けられている構成とする。この構成によれば、図9に示す従来構造と比較して、嵌合面721dの内周面36に対する接触応力を増大させることができる。さらに、第2傾斜面721fによって、図10に示す従来構造と比較して、固定体3の内周面36へ加える力を抑えることができる。したがって、嵌合面721dの内周面36に対する接触応力を増大と、弾性シール体72の圧入に必要となる力、即ち、圧入力の低減とを両立させることができる。
(第2の実施形態)
次に、図6を参照して、本発明の軸受装置について、この軸受装置を、車両の車体に取り付けられた車軸を回転可能に支持する転がり軸受装置として具体化した第2の実施形態について説明する。本実施形態の転がり軸受装置は、転がり軸受装置の第1の実施形態と比較して、車外側シールの弾性シール体と固定体の内周面との嵌合の位置が異なるのみであり、転がり軸受装置及び車外側シールの構造の説明は省略する。なお、図6中のグラフは、車外側シールが圧入された後の状態において、車外側シールの圧入の応力分布を示している。
(9)本実施形態の転がり軸受装置によれば、第2傾斜面721fは、第1内周面36aと第2内周面36bとの境界P3をまたいで設けられる構成とする。この構成によれば、第1内周面36aと第2内周面36bとの境界P3付近において、第2傾斜面721fの内周面36に対する接触応力が増大するため、車外側シール7のシール性能の低下を抑制することができる。
上記各実施形態の転がり軸受装置は、以下の変形が可能である。
・第1の実施形態の転がり軸受装置1において、車体側シール6の第2傾斜面631dは、第1内周面39aのみに対して圧入されたが、車体側シール6の圧入態様は、これに限定されることはない。例えば、図7に示すように、第2傾斜面631dが、第1内周面39aに嵌合されるとともに、径方向において、第2内周面39bと対向するように配置されてもよい。この構成により、第1内周面39aと第2内周面39bとの境界P6において、第2傾斜面631dの内周面39に対する接触応力を増大させることができる。その結果、車体側シール6のシール性能の低下を抑制することができる。
Claims (3)
- 車軸を支持するとともに、前記車軸と共に回転する回転体と、前記回転体を外囲する固定体と、前記回転体と前記固定体との間に形成される空間に配置される複数の転動体と、前記回転体及び前記固定体の間に配設されて前記空間をシールする弾性シール体とを備え、前記弾性シール体の嵌合面と前記固定体の内周面とが接触して前記弾性シール体が圧縮された状態にある軸受装置において、
前記弾性シール体の嵌合面には、当該軸受装置の軸方向において外側に向かうにしたがい、当該軸受装置の径方向において外側に突出する第1傾斜面及び第2傾斜面が設けられ、
前記第2傾斜面は、前記軸方向において、前記第1傾斜面よりも外側に設けられる
ことを特徴とする軸受装置。 - 請求項1に記載の軸受装置において、
前記第2傾斜面は、前記軸方向において、前記嵌合面の中間部から前記転動体とは反対側にある前記嵌合面の端部までにわたり設けられる
を特徴とする軸受装置。 - 請求項1及び請求項2のいずれかに記載の軸受装置において、
前記固定体の内周面には、前記軸方向に沿って延びる第1内周面と、前記第1内周面と連続し、且つ前記径方向において、前記第1内周面より外側にある第2内周面とが設けられ、
前記第2傾斜面は、前記軸方向において、前記第1内周面と前記第2内周面との境界をまたいで設けられる
ことを特徴とする軸受装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008243210A JP5122412B2 (ja) | 2008-09-22 | 2008-09-22 | 軸受装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008243210A JP5122412B2 (ja) | 2008-09-22 | 2008-09-22 | 軸受装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010071456A JP2010071456A (ja) | 2010-04-02 |
JP5122412B2 true JP5122412B2 (ja) | 2013-01-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008243210A Active JP5122412B2 (ja) | 2008-09-22 | 2008-09-22 | 軸受装置 |
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JP (1) | JP5122412B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012082913A (ja) * | 2010-10-13 | 2012-04-26 | Jtekt Corp | 車輪用転がり軸受装置の密封装置 |
JP2012106521A (ja) * | 2010-11-15 | 2012-06-07 | Jtekt Corp | 密封装置および転がり軸受 |
JP2012112494A (ja) * | 2010-11-26 | 2012-06-14 | Ntn Corp | 車輪用軸受の密封装置 |
DE112013001621B4 (de) * | 2012-03-20 | 2022-07-07 | Schaeffler Technologies AG & Co. KG | Abgedichtetes Lager mit kompakter statischer Dichtung am Außendurchmesser |
EP2980432B1 (en) * | 2013-03-27 | 2019-09-25 | NTN Corporation | Wheel bearing device |
JP6239920B2 (ja) * | 2013-09-30 | 2017-11-29 | Ntn株式会社 | 車輪用軸受装置 |
JP2017026124A (ja) * | 2015-07-28 | 2017-02-02 | 内山工業株式会社 | シール部材 |
KR102647697B1 (ko) * | 2018-12-28 | 2024-03-15 | 주식회사 베어링아트 | 텐덤 볼 베어링 |
CN114555960A (zh) * | 2019-10-15 | 2022-05-27 | 沃尔沃卡车集团 | 车轮轴承密封布置和车辆 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005331002A (ja) * | 2004-05-19 | 2005-12-02 | Nok Corp | 密封装置 |
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