JP2012097213A5 - - Google Patents
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- JP2012097213A5 JP2012097213A5 JP2010247047A JP2010247047A JP2012097213A5 JP 2012097213 A5 JP2012097213 A5 JP 2012097213A5 JP 2010247047 A JP2010247047 A JP 2010247047A JP 2010247047 A JP2010247047 A JP 2010247047A JP 2012097213 A5 JP2012097213 A5 JP 2012097213A5
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- parts
- torque
- weight
- carbon black
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近年の地球規模の環境問題から、自動車業界においては軽量化と低燃費化が強く望まれている。これを受けて、自動車部品のうちオイルシールのような回転系の部品に関しては、自動車の燃費向上のために低トルク化が求められている。かかる背景より、車輪用転がり軸受も低トルク化が望まれてはいるものの、車輪用転がり軸受は屋外で使用され、極端なケースでは泥水に曝されるような劣悪な環境で使用されるため、その弾性部材(オイルシール)には耐泥水性が求められ、耐泥水性はトルク性能と相反する関係のため、低トルク化が非常に難しいのが現状である。 Due to recent global environmental problems, weight reduction and fuel efficiency are strongly desired in the automobile industry. In response to this, with regard to parts of a rotating system such as an oil seal among automobile parts, a reduction in torque is required to improve the fuel efficiency of the automobile. From such a background, although rolling bearings for wheels are also desired to reduce torque, rolling bearings for wheels are used outdoors, and in extreme cases they are used in an adverse environment where they are exposed to muddy water, Mud water resistance is required for the elastic member (oil seal), and it is very difficult to reduce the torque because the mud water resistance is in contradiction to the torque performance.
カーボンブラックとしては、SRF、HAF等のカーボンブラックが、NBR 100重量部当り5〜50重量部、好ましくは15〜40重量部の割合で用いられる。カーボンブラックがこれより少ない割合で用いられると、材料強度が不足するようになり、一方これより多い割合で用いられると、材料硬度が高すぎるようになり好ましくない。 As carbon black, carbon black such as SRF or HAF is used in a proportion of 5 to 50 parts by weight, preferably 15 to 40 parts by weight, per 100 parts by weight of NBR. If carbon black is used in a proportion smaller than this, the strength of the material becomes insufficient, while if it is used in a proportion larger than this, the hardness of the material becomes too high, which is not preferable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010247047A JP5655511B2 (en) | 2010-11-04 | 2010-11-04 | Nitrile rubber composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010247047A JP5655511B2 (en) | 2010-11-04 | 2010-11-04 | Nitrile rubber composition |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012097213A JP2012097213A (en) | 2012-05-24 |
JP2012097213A5 true JP2012097213A5 (en) | 2012-09-06 |
JP5655511B2 JP5655511B2 (en) | 2015-01-21 |
Family
ID=46389490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010247047A Active JP5655511B2 (en) | 2010-11-04 | 2010-11-04 | Nitrile rubber composition |
Country Status (1)
Country | Link |
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JP (1) | JP5655511B2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6081179B2 (en) * | 2012-12-14 | 2017-02-15 | Nok株式会社 | Sealing device |
CN103122085B (en) * | 2013-02-06 | 2015-09-23 | 上海驰程化工工贸有限公司 | A kind of rubber insulation strippable semi-conductive shielding rubber and preparation method thereof |
US20160152790A1 (en) * | 2013-07-11 | 2016-06-02 | Nok Corporation | Nitrile rubber composition |
CN105392834B (en) * | 2013-07-11 | 2017-04-05 | Nok株式会社 | Acrylonitrile rubber composite |
JP7253781B2 (en) | 2019-03-19 | 2023-04-07 | 内山工業株式会社 | Bearing sealing member and manufacturing method thereof |
CN110527155B (en) * | 2019-08-23 | 2021-11-12 | 陕西特种橡胶制品有限公司 | Hard wear-resistant rubber for nuclear power circulating pump bearing bush |
US20240084098A1 (en) * | 2021-01-25 | 2024-03-14 | Sekisui Techno Molding Co., Ltd. | Resin composition and resin molded article |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065110B2 (en) * | 1984-05-22 | 1994-01-19 | エヌオーケー株式会社 | Conductive oil seal |
JPH0648057B2 (en) * | 1985-08-13 | 1994-06-22 | エヌオーケー株式会社 | Conductive oil seal |
JP2002372062A (en) * | 2001-06-18 | 2002-12-26 | Nsk Ltd | Rolling bearing |
JP2004092684A (en) * | 2002-08-29 | 2004-03-25 | Nsk Ltd | Sealing device and rolling bearing unit for wheel with sealing device |
JP2004353709A (en) * | 2003-05-27 | 2004-12-16 | Nsk Ltd | Rolling bearing unit for supporting wheel |
JP2010065203A (en) * | 2008-09-10 | 2010-03-25 | Arai Seisakusho Co Ltd | Rubber composition and oil seal for reciprocating axle using the same |
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2010
- 2010-11-04 JP JP2010247047A patent/JP5655511B2/en active Active
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