JP2010190282A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2010190282A5 JP2010190282A5 JP2009033912A JP2009033912A JP2010190282A5 JP 2010190282 A5 JP2010190282 A5 JP 2010190282A5 JP 2009033912 A JP2009033912 A JP 2009033912A JP 2009033912 A JP2009033912 A JP 2009033912A JP 2010190282 A5 JP2010190282 A5 JP 2010190282A5
- Authority
- JP
- Japan
- Prior art keywords
- rolling bearing
- seal member
- seal
- end portion
- bearing
- 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 description 7
- 210000000088 Lip Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Description
また、シール部材10には、一方の端部13とは別に分岐し、外輪3の側面部の一部を円環状に覆うように形成された鍔部14が形成される。そして、シール溝3bと、一方の端部13と、鍔部14とにより領域S2が形成される。鍔部14は、シール溝3bが形成されることによってできた外縁部3dを、一方の端部13と共に挟むように形成される。
転がり軸受の密封剤として用いられる従来のシール部材は、転がり軸受の運転(回転)時において、転がり軸受の内部の温度が上昇し、外部との間に圧力差が生じることを軽減するために、シール部材を貫通する貫通孔を設けることがあった。しかし、この貫通孔は、転がり軸受の内部に水分や埃等を侵入させるおそれがある。また、洗濯機の支持用主軸に用いられる従来の転がり軸受は、非接触の金属シールド板を装着したSUJ2鋼等よりなる軸受が使用され、この軸受と洗濯槽との間にオイルシール等を装着して、軸受部分に水分がかからないように設計されている。そのため、本実施形態の転がり軸受1では、シール部材10の他方の端部12に形成された複数のリップ部12a,12bのうち、外側(シール部材10における固定輪(外輪3)側)のリップ部12bの上面(シール溝2bとの接触面)の数箇所に形成された溝が、他方の端部12が摺動面に当接した際に、この溝を通じて内圧を下げる効果を奏する。さらに、内側(シール部材10における回転輪(内輪2)側)のリップ部12aは、摺動面2d上に形成された耐食性被膜30に当接し、転がり軸受1の内部に水分が浸入することを防ぐ効果を奏する。
Further, the seal member 10 is formed with a collar portion 14 that is branched separately from the one end portion 13 and is formed so as to cover a part of the side surface portion of the outer ring 3 in an annular shape. A region S 2 is formed by the seal groove 3 b, the one end portion 13, and the flange portion 14. The flange portion 14 is formed so as to sandwich the outer edge portion 3d formed by forming the seal groove 3b together with the one end portion 13.
A conventional seal member used as a sealant for a rolling bearing is used to reduce the occurrence of a pressure difference with the outside due to an increase in temperature inside the rolling bearing during operation (rotation) of the rolling bearing. A through hole penetrating the seal member may be provided. However, this through hole may cause moisture or dust to enter the inside of the rolling bearing. Also, the conventional rolling bearing used for the washing machine support spindle is made of SUJ2 steel with a non-contact metal shield plate, and an oil seal is installed between this bearing and the washing tub. Thus, it is designed so that moisture is not applied to the bearing portion. Therefore, the rolling bearing 1 of the present embodiment, a plurality of lip portions 12a formed at the other end 12 of the sealing member 10, out of the 12b, the outer (stationary ring in the seal member 10 (outer ring 3) side) The grooves formed at several places on the upper surface of the lip portion 12b (the contact surface with the seal groove 2b) have an effect of reducing the internal pressure through the groove when the other end portion 12 comes into contact with the sliding surface. Further, the lip portion 12a on the inner side (the rotating wheel (inner ring 2) side of the seal member 10) abuts against the corrosion-resistant coating 30 formed on the sliding surface 2d, and moisture enters the inside of the rolling bearing 1. There is an effect to prevent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009033912A JP2010190282A (en) | 2009-02-17 | 2009-02-17 | Roll bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009033912A JP2010190282A (en) | 2009-02-17 | 2009-02-17 | Roll bearing |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012226277A Division JP5637198B2 (en) | 2012-10-11 | 2012-10-11 | Rolling bearing for motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010190282A JP2010190282A (en) | 2010-09-02 |
JP2010190282A5 true JP2010190282A5 (en) | 2012-01-19 |
Family
ID=42816543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009033912A Pending JP2010190282A (en) | 2009-02-17 | 2009-02-17 | Roll bearing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2010190282A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6725264B2 (en) * | 2016-03-01 | 2020-07-15 | Ntn株式会社 | Tapered roller bearing |
DE102018200603A1 (en) * | 2018-01-15 | 2019-07-18 | Audi Ag | Sealing arrangement for a wheel bearing assembly of a motor vehicle |
JP6887046B2 (en) * | 2020-06-24 | 2021-06-16 | Ntn株式会社 | Tapered roller bearing |
CN114791016B (en) * | 2022-03-02 | 2024-03-19 | 湖南华园莱客科技有限公司 | Air bearing that polycyclic cup jointed |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000018264A (en) * | 1998-07-06 | 2000-01-18 | Nippon Seiko Kk | Rolling bearing with seal |
JP2008180374A (en) * | 2006-12-28 | 2008-08-07 | Nsk Ltd | Rolling bearing |
-
2009
- 2009-02-17 JP JP2009033912A patent/JP2010190282A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2015178881A5 (en) | ||
JP2010190282A5 (en) | ||
WO2008081586A1 (en) | Bearing unit for wheel | |
JP2013179727A5 (en) | ||
JP2013113319A5 (en) | ||
JP6590293B2 (en) | Sealing device | |
RU2599692C1 (en) | Cassette seal | |
CN106090027A (en) | A kind of sealing ring sealing self-aligning roller bearing | |
JP2009287596A (en) | Rolling bearing-sealing device | |
CN106523714B (en) | Three roller labyrinth-type excluder of cold-rolling mill | |
CN201661608U (en) | Bearing seal assembly for rolling mills | |
US9644679B2 (en) | Slewing bearing, in particular for a vehicle | |
US10544835B2 (en) | Wheel bearing assembly for a motor vehicle | |
CN204025371U (en) | Combined bearing seal ring | |
CN107061509A (en) | Bearing unit | |
CN106195024B (en) | A kind of dust-proof deep groove ball bearing with double-layer seal lid | |
CN201836104U (en) | Automobile water pump bearing sealing device with water thrower | |
JP2008039143A (en) | Rolling bearing | |
JP2008025628A (en) | Sealing device | |
JP2012233548A (en) | Rolling bearing | |
JP6743378B2 (en) | Auxiliary seal for sealing device | |
CN205841527U (en) | A kind of clutch release bearing high temperature resistant sealing structure | |
JP2014177954A (en) | Sealing device and rolling bearing unit equipped therewith | |
JP4545468B2 (en) | Sealing device | |
CN205423826U (en) | Oil film bearing and roll neck sealing device thereof |