JP2014190465A - 車輪用軸受の密封装置 - Google Patents
車輪用軸受の密封装置 Download PDFInfo
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- 238000007789 sealing Methods 0.000 title claims abstract description 66
- 239000004519 grease Substances 0.000 claims abstract description 69
- 238000005096 rolling process Methods 0.000 claims description 43
- 239000002184 metal Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000002199 base oil Substances 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 4
- 239000010960 cold rolled steel Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- -1 for example Polymers 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical class C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920005559 polyacrylic rubber Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000126 substance 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
- 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
- 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
- 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
-
- 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
- F16C33/30—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
- F16C33/6607—Retaining the grease in or near the bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
【解決手段】密封装置7がシール板10とスリンガ11からなり、シール部材13が、径方向外方に傾斜して立板部11bに摺接するサイドリップ13b、13cと、この内径側に径方向内方に傾斜して円筒部11aに摺接するグリースリップ13dを備え、各リップ13d、13b、13cの摺接部にグリース15が塗布され、グリースリップ13dの先端部に軸受内方側に突出する環状の舌片17が一体に形成されると共に、円筒部11aの端部に径方向外方に延びる環状の屈曲部16が形成され、これと舌片17が僅かなすきまを介して対向しラビリンスシール18が構成され、グリース15を溜める環状の保持部19が形成されている。
【選択図】図2
Description
図1は、本発明に係る密封装置を備えた車輪用軸受の一実施形態を示す縦断面図、図2(a)は、図1の密封装置を示す要部拡大図、(b)は、(a)の要部拡大図、図3は、図2の密封装置の変形例を示す要部拡大図、図4は、図3の密封装置の組立状態を示す説明図である。なお、以下の説明では、車両に組み付けた状態で車両の外側寄りとなる側をアウター側(図1の左側)、中央寄り側をインナー側(図1の右側)という。
2 外輪
2a 外側転走面
3 内輪
3a 内側転走面
4 保持器
5 転動体
6 アウター側の密封装置
7、20 インナー側の密封装置
8、12 芯金
9、13 シール部材
10 シール板
11、21 スリンガ
11a、21a 円筒部
11b 立板部
12a 嵌合部
12b 内径部
13a シール部材の基部
13b13c サイドリップ
13d グリースリップ
14、18 ラビリンスシール
15 グリース
16、22 屈曲部
17 舌片
19 保持部
50 車輪用軸受
51 内方部材
52 外方部材
52a 外側転走面
52b 車体側取付用フランジ
53 ボール
54 ハブ輪
54a、55a 内側転走面
54b 小径段部
54c セレーション
55 内輪
56 車輪取付フランジ
57 ハブボルト
58 保持器
59、60 密封装置
61 芯金部材
61a 内嵌固定部
61b 径方向延在部
62 弾性部材
63 スリンガ
63a 外嵌固定部
63b フランジ部
63c 屈曲延在部
64 シール部材
65 基部
66 アキシアルリップ
67 ラジアルリップ
68 屈曲延在部の内周面
B ブレーキロータ
W 車輪
Claims (6)
- 内周に複列の外側転走面が一体に形成された外方部材と、
外周に前記複列の外側転走面に対向する内側転走面が形成された内方部材と、
この内方部材と前記外方部材のそれぞれの転走面間に転動自在に収容された複列の転動体とを備えた車輪用軸受に装着され、前記外方部材と内方部材との間に形成される環状空間の開口部を密封する車輪用軸受の密封装置であって、
前記密封装置が、断面が略L字状に形成されて互いに対向配置された環状のシール板とスリンガとからなるパックシールで構成され、
前記シール板が、前記外方部材の端部内周に圧入される円筒状の嵌合部と、この嵌合部の端部から径方向内方に延びる内径部からなる芯金、およびこの芯金に加硫接着により一体に接合されたシール部材とを備え、
前記スリンガが、前記内方部材の外径に圧入される円筒部と、この円筒部から径方向外方に延びる立板部とからなり、
前記シール部材が、前記芯金の内周面を覆う基部と、この基部から径方向外方に傾斜して形成され、前記スリンガの立板部に摺接するサイドリップと、このサイドリップの内径側に径方向内方に傾斜して形成され、前記スリンガの円筒部に摺接するグリースリップを備えた車輪用軸受の密封装置において、
前記グリースリップとサイドリップの摺接部に予めグリースが塗布されると共に、
当該グリースリップの先端部に軸受内方側に突出する環状の舌片が一体に形成され、前記グリースを溜めるための環状の保持部が形成されていることを特徴とする車輪用軸受の密封装置。 - 前記スリンガの円筒部の端部が径方向外方に折り曲げられて環状の屈曲部が形成され、この屈曲部と前記舌片が僅かなすきまを介して対向し、ラビリンスシールが構成されている請求項1に記載の車輪用軸受の密封装置。
- 前記屈曲部の端面が軸受外方側に漸次拡径するテーパ面に形成されている請求項2に記載の車輪用軸受の密封装置。
- 前記屈曲部のテーパ面の小径側の外径が前記スリンガの円筒部の外径よりも小径に形成されている請求項3に記載の車輪用軸受の密封装置。
- 前記各リップの摺接部に塗布されるグリースが、軸受部の潤滑のために封入されるグリースと少なくとも同じ基油からなる請求項1に記載の車輪用軸受の密封装置。
- 前記グリースの混和ちょう度が260〜300の範囲に設定されている請求項1または5に記載の車輪用軸受の密封装置。
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JP2014190465A true JP2014190465A (ja) | 2014-10-06 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109296647A (zh) * | 2018-09-27 | 2019-02-01 | 中浙高铁轴承有限公司 | 一种深沟球轴承密封组件 |
CN109689396A (zh) * | 2016-09-12 | 2019-04-26 | Ntn株式会社 | 车轮用轴承装置 |
US20200003260A1 (en) * | 2018-06-29 | 2020-01-02 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
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 |
CN111911549A (zh) * | 2019-05-08 | 2020-11-10 | 株式会社捷太格特 | 密封结构 |
Citations (5)
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---|---|---|---|---|
JP2006322536A (ja) * | 2005-05-19 | 2006-11-30 | Uchiyama Mfg Corp | 密封装置 |
JP2007198505A (ja) * | 2006-01-26 | 2007-08-09 | Nsk Ltd | 水ポンプ装置 |
JP2008151174A (ja) * | 2006-12-14 | 2008-07-03 | Uchiyama Mfg Corp | 密封装置 |
JP2012207769A (ja) * | 2011-03-30 | 2012-10-25 | Ntn Corp | 車輪用軸受装置 |
JP2013050132A (ja) * | 2011-08-30 | 2013-03-14 | Ntn Corp | 車輪用軸受シール |
-
2013
- 2013-03-27 JP JP2013067582A patent/JP6114605B2/ja active Active
Patent Citations (5)
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JP2006322536A (ja) * | 2005-05-19 | 2006-11-30 | Uchiyama Mfg Corp | 密封装置 |
JP2007198505A (ja) * | 2006-01-26 | 2007-08-09 | Nsk Ltd | 水ポンプ装置 |
JP2008151174A (ja) * | 2006-12-14 | 2008-07-03 | Uchiyama Mfg Corp | 密封装置 |
JP2012207769A (ja) * | 2011-03-30 | 2012-10-25 | Ntn Corp | 車輪用軸受装置 |
JP2013050132A (ja) * | 2011-08-30 | 2013-03-14 | Ntn Corp | 車輪用軸受シール |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109689396A (zh) * | 2016-09-12 | 2019-04-26 | Ntn株式会社 | 车轮用轴承装置 |
US20200003260A1 (en) * | 2018-06-29 | 2020-01-02 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
CN110657163A (zh) * | 2018-06-29 | 2020-01-07 | 中西金属工业株式会社 | 旋转用密封 |
US10907688B2 (en) * | 2018-06-29 | 2021-02-02 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
CN110657163B (zh) * | 2018-06-29 | 2021-04-30 | 中西金属工业株式会社 | 旋转用密封 |
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 |
CN109296647A (zh) * | 2018-09-27 | 2019-02-01 | 中浙高铁轴承有限公司 | 一种深沟球轴承密封组件 |
CN111911549A (zh) * | 2019-05-08 | 2020-11-10 | 株式会社捷太格特 | 密封结构 |
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