JP2018080741A5 - - Google Patents
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- Publication number
- JP2018080741A5 JP2018080741A5 JP2016222850A JP2016222850A JP2018080741A5 JP 2018080741 A5 JP2018080741 A5 JP 2018080741A5 JP 2016222850 A JP2016222850 A JP 2016222850A JP 2016222850 A JP2016222850 A JP 2016222850A JP 2018080741 A5 JP2018080741 A5 JP 2018080741A5
- Authority
- JP
- Japan
- Prior art keywords
- axial direction
- outward
- auxiliary lip
- internal space
- peripheral surface
- 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.)
- Granted
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- 210000000088 Lip Anatomy 0.000 description 6
- 230000002093 peripheral Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 210000003027 Ear, Inner Anatomy 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
又、外輪1の内周面とハブ2の外周面との間に存在する、各転動体3が設けられた内部空間6の軸方向外端開口部は、シールリング7により塞がれている。これにより、内部空間6に封入された潤滑用のグリースが外部空間に漏洩するのを防止すると共に、外部空間から内部空間6に雨水等の異物が侵入する事を防止している。 Further, the axially outer end opening of the internal space 6 provided with the respective rolling elements 3, which exists between the inner peripheral surface of the outer ring 1 and the outer peripheral surface of the hub 2, is blocked by a seal ring 7. . Thereby, the grease for lubrication enclosed in the internal space 6 is prevented from leaking into the external space, and foreign substances such as rainwater are prevented from entering the internal space 6 from the external space.
シール材33は、ゴムの如きエラストマー等の弾性材製で、芯金32の全周に結合固定されている。この様なシール材33は、3本のシールリップ37〜39と、括れ部40と、外径側覆い部41と、補助リップ42とを有している。 The sealing material 33 is made of an elastic material such as an elastomer such as rubber, and is fixedly coupled to the entire circumference of the cored bar 32. Such a sealing material 33 has three sealing lips 37 to 39, a constricted portion 40, an outer diameter side covering portion 41, and an auxiliary lip 42.
外径側覆い部41は、芯金32を構成する外向鍔部35の軸方向外側面及び径方向外端縁面を覆う様に設けられており、外輪16の軸方向外端部外周面よりも径方向外側に突出している。 The outer diameter side cover portion 41 is provided so as to cover the axial outer side surface and the radial outer end edge surface of the outward flange portion 35 constituting the core metal 32, and from the outer peripheral surface of the outer ring 16 in the axial direction outer end portion. Also protrudes radially outward.
補助リップ42は、外径側覆い部41の軸方向外側面の外端寄り部分から軸方向外側に突出する状態で全周に亙り設けられている。又、補助リップ42は、軸方向外側に向かう程、径方向外側に向かう方向に傾斜している。そして、この補助リップ42の先端部を、回転側フランジ25の軸方向内側面の径方向内端寄り部分に設けられた、径方向内側に向かう程軸方向内側に向かう方向に曲線状に湾曲した段部51に対し、微小隙間を介して近接対向させている。これにより、補助リップ42の先端部と段部51との間に、ラビリンスシールを形成している。 The auxiliary lip 42 is provided over the entire circumference in a state of protruding outward in the axial direction from a portion closer to the outer end of the axially outer side surface of the outer diameter side cover portion 41. Further, the auxiliary lip 42 is inclined in the direction toward the radially outer side as it goes outward in the axial direction. And the front-end | tip part of this auxiliary | assistant lip 42 was curved in the direction toward the inner side in the axial direction toward the inner side in the radial direction provided in the portion closer to the inner end in the radial direction on the inner side surface in the axial direction of the rotation side flange 25. It is made to face and oppose to the step part 51 through a minute gap. Thereby, a labyrinth seal is formed between the tip of the auxiliary lip 42 and the stepped portion 51.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016222850A JP6776833B2 (en) | 2016-11-16 | 2016-11-16 | Rolling bearing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016222850A JP6776833B2 (en) | 2016-11-16 | 2016-11-16 | Rolling bearing equipment |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2018080741A JP2018080741A (en) | 2018-05-24 |
JP2018080741A5 true JP2018080741A5 (en) | 2019-08-08 |
JP6776833B2 JP6776833B2 (en) | 2020-10-28 |
Family
ID=62197177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016222850A Expired - Fee Related JP6776833B2 (en) | 2016-11-16 | 2016-11-16 | Rolling bearing equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6776833B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7272827B2 (en) * | 2019-03-06 | 2023-05-12 | 古河産機システムズ株式会社 | Seal ring |
JP2021081041A (en) * | 2019-11-21 | 2021-05-27 | 日立Astemo株式会社 | Seal structure used in valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004211822A (en) * | 2003-01-06 | 2004-07-29 | Nsk Ltd | Sealing device, rolling bearing incorporating the same, and hub unit |
JP4483220B2 (en) * | 2003-07-30 | 2010-06-16 | 日本精工株式会社 | Rolling bearing unit for wheel support with seal ring |
JP2012007663A (en) * | 2010-06-24 | 2012-01-12 | Ntn Corp | Wheel bearing device |
JP5665114B2 (en) * | 2010-07-16 | 2015-02-04 | 内山工業株式会社 | Sealing device |
-
2016
- 2016-11-16 JP JP2016222850A patent/JP6776833B2/en not_active Expired - Fee Related
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