JP2015200393A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2015200393A5 JP2015200393A5 JP2014080862A JP2014080862A JP2015200393A5 JP 2015200393 A5 JP2015200393 A5 JP 2015200393A5 JP 2014080862 A JP2014080862 A JP 2014080862A JP 2014080862 A JP2014080862 A JP 2014080862A JP 2015200393 A5 JP2015200393 A5 JP 2015200393A5
- Authority
- JP
- Japan
- Prior art keywords
- seal lip
- seal
- lip
- reduced
- seal ring
- 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
Links
- 210000000088 Lip Anatomy 0.000 description 7
- 238000005452 bending Methods 0.000 description 1
Description
上述の様な構成を有する本例のシールリング付玉軸受１ａによれば、回転トルクの低減を図れると共に、外部空間に存在する油を内部空間に適度に供給する事ができ、しかも、シールリング９ａの耐圧性能を確保できる。
即ち、本例の場合には、前記シールリップ２５の基端部にくびれ部３０を設けている為、このシールリップ２５の曲げ剛性を低くできて、リップ反力を小さくできる。この為、このシールリップ２５の先端縁、及び、このシールリップ２５の径方向中間部に設けられた補助シールリップ２９の先端縁と、前記シール溝２０の内側壁面２８との摺接部に作用する摩擦トルクを低く抑える事ができる。又、本例の場合、前記補助シールリップ２９の先端縁は、前記シールリング９ａの軸方向外側面が受ける油圧が高くなり、内部空間８に油が侵入し易くなった場合にのみ、前記シール溝２０の内側壁面２８に摺接し、それ以外の場合には、摺接させずに済む。従って、本例のシールリング付玉軸受１ａによれば、回転トルクの低減を図れる。
According to the ball bearing 1a with the seal ring of the present example having the above-described configuration, the rotational torque can be reduced and the oil existing in the external space can be appropriately supplied to the internal space. The pressure resistance performance of 9a can be secured.
That is, in this example, since the constricted portion 30 is provided at the base end portion of the seal lip 25, the bending rigidity of the seal lip 25 can be lowered, and the lip reaction force can be reduced. For this reason, it acts on a sliding contact portion between the front end edge of the seal lip 25 and the front end edge of the auxiliary seal lip 29 provided at the radial intermediate portion of the seal lip 25 and the inner wall surface 28 of the seal groove 20. The friction torque to be kept can be kept low. Further, in the case of this example, the tip edge of the auxiliary seal lip 29 is applied only when the oil pressure applied to the outer surface in the axial direction of the seal ring 9a is high and the oil easily enters the internal space 8. It slidably contacts the inner wall surface 28 of the groove 20, and in other cases, it does not need to be slidably contacted. Therefore, according to the ball bearing 1a with a seal ring of this example, the rotational torque can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014080862A JP6532651B2 (en) | 2014-04-10 | 2014-04-10 | Rolling bearing with seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014080862A JP6532651B2 (en) | 2014-04-10 | 2014-04-10 | Rolling bearing with seal ring |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2015200393A JP2015200393A (en) | 2015-11-12 |
| JP2015200393A5 true JP2015200393A5 (en) | 2017-05-25 |
| JP6532651B2 JP6532651B2 (en) | 2019-06-19 |
Family
ID=54551826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014080862A Active JP6532651B2 (en) | 2014-04-10 | 2014-04-10 | Rolling bearing with seal ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6532651B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7263816B2 (en) | 2019-02-14 | 2023-04-25 | 日本精工株式会社 | rolling bearing |
| CN110307340B (en) * | 2019-07-22 | 2024-03-22 | 新乡市华航航空液压设备有限公司 | Mechanical sealing device of high-speed high-pressure hydraulic pump |
| JP2022129396A (en) | 2021-02-25 | 2022-09-06 | Ntn株式会社 | Bearing seal and rolling bearing |
| CN114570460B (en) * | 2022-02-23 | 2023-12-22 | 浙江双金机械集团股份有限公司 | Multi-cylinder hydraulic cone crusher formed by pi-shaped rubber ring fixing device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388025U (en) * | 1989-12-26 | 1991-09-09 | ||
| US5470158A (en) * | 1994-12-29 | 1995-11-28 | The Torrington Company | Seal for rolling bearings |
| JP3695127B2 (en) * | 1997-04-16 | 2005-09-14 | 日本精工株式会社 | Rolling bearing with sealing plate |
| JP3669123B2 (en) * | 1997-08-15 | 2005-07-06 | 日本精工株式会社 | Rolling bearing with shield plate |
| IT1305136B1 (en) * | 1998-10-23 | 2001-04-10 | Skf Ind Spa | SEALING COMPLEX FOR TWO MECHANICAL BODIES COUPLED IN RELATIVE ROTATION, IN PARTICULAR FOR TWO RINGS OF A ROLLING BEARING |
| JP2007051761A (en) * | 2005-07-22 | 2007-03-01 | Ntn Corp | Sealing structure of rolling bearing |
| JP2012207757A (en) * | 2011-03-30 | 2012-10-25 | Keihin Corp | Compressor |
-
2014
- 2014-04-10 JP JP2014080862A patent/JP6532651B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014093757A3 (en) | Sliding sleeve having contracting, dual segmented ball seat | |
| JP2016220548A5 (en) | ||
| JP2015200393A5 (en) | ||
| WO2014089572A3 (en) | Split mechanical seal with axial biasing assembly | |
| CN105020360B8 (en) | Compact shaft assembly with locking differential component | |
| JP2015199918A5 (en) | ||
| JP2015066993A5 (en) | ||
| JP2014212686A5 (en) | ||
| EP2889500A3 (en) | Tapered roller bearing | |
| WO2015123288A3 (en) | Hybrid elastomer/metal on metal motor | |
| MX2016006819A (en) | A vehicle joint. | |
| WO2014197024A3 (en) | Full ring curvic seal | |
| CL2017001028A1 (en) | Connection to connect tubular elements, pipe connection and a method to connect to a tubular element. | |
| MX2018005693A (en) | Socket assembly. | |
| EP2821661A3 (en) | Sealing device | |
| EP2813670A3 (en) | Stationary part sealing structure | |
| WO2014193590A3 (en) | Combination fluid pumping sub and hanger lockdown tool | |
| CO2017004347A2 (en) | Tapered Sleeve Thrust Bearing Driver | |
| JP2017067220A5 (en) | ||
| CN106605075A8 (en) | Arrangement of clutch | |
| JP2019070655A5 (en) | ||
| WO2013182539A3 (en) | Partial structuring of sliding surfaces | |
| MX2017016850A (en) | Radially expansible rock bolt. | |
| WO2018190145A9 (en) | Sealing device | |
| BR112016006443A2 (en) | cover arrangement for a friction clutch, and friction clutch for engaging a drive shaft of a vehicle engine |