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公开(公告)号：JP2004332905A
公开(公告)日：2004-11-25
申请号：JP2003133590
申请日：2003-05-12
Inventor： OKA RYUTARO , MIKI DAISUKE , ISHIKAWA SHIRO
CPC classification number: F16C19/386 , B61F15/22 , F16C33/768 , F16C33/7813 , F16C35/063 , F16C2326/10
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device for a rail vehicle capable of suppressing the production of fretting abrasive powder, preventing the produced abrasive powder from flowing out into a bearing, and having excellent assemblability in manufacture. SOLUTION: An annular spacer 20 formed by fixing an annular elastic seal material 21 to an outer diameter side peripheral edge part integrally with each other is installed between the width face of the inner ring 3 of a roller bearing 2 fitted to an axle 1 and the width face of a rear cover 11 (ring member) fitted to the axle 1 and restricting the axial position of the inner ring 3 relative to the axle 1 so as to be brought into a slidable contact with each other in the state of elastically and deformably fitting the elastic seal member 21 to the outer periphery of a projected step part 25 formed on the width face of the rear cover 11. The annular spacer 20 is sealed by the elastic seal material 21 in a contact part between the inner ring 3 and the rear cover 11 in the state of pressing the elastic seal member 21 by the width faces of the inner ring 3 and the rear cover 11 opposed to each other. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2009243690A
公开(公告)日：2009-10-22
申请号：JP2009165520
申请日：2009-07-14
Inventor： HANANO TADAYUKI , MIZUTANI TSUTOMU , OKA RYUTARO
CPC classification number: C23C2222/10 , F16C19/06 , F16C19/386 , F16C19/388
Abstract: PROBLEM TO BE SOLVED: To provide a rolling bearing causing no environmental pollution without containing harmful substance.
SOLUTION: This cold-rolled steel rolling bearing retainer retains the rolling element of a rolling bearing. The cold-rolled steel surface of the retainer is subjected to at least one of surface treatment selected from among electrogalvanizing, electrotinning, tin-zinc alloy electroplating, zinc-iron alloy electroplating and zinc-nickel alloy electroplating treatment, and further subjected to trivalent chromating. The rolling bearing uses the rolling bearing retainer.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：提供不含有害物质的环境污染的滚动轴承。
解决方案：该冷轧钢滚动轴承保持架保持滚动轴承的滚动元件。 保持器的冷轧钢表面进行选自电镀锌，电镀，锡 - 锌合金电镀，锌 - 铁合金电镀和锌 - 镍合金电镀处理中的至少一种表面处理，并进一步进行三价铬酸盐化 。 滚动轴承使用滚动轴承保持架。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2006214571A
公开(公告)日：2006-08-17
申请号：JP2005030743
申请日：2005-02-07
Inventor： ISHIKAWA SHIRO , OKA RYUTARO
CPC classification number: F16C33/7813 , F16C19/386 , F16C33/805
Abstract: PROBLEM TO BE SOLVED: To prevent effects of a grease seal from being damaged even if grease G between seal lips 20, 22 leaks to the outside from a dust lip 22. SOLUTION: The sealing device 10 is composed of a seal case 12, which is fitted to the opening end part of an outer ring 4, and an oil seal 10 held inside the seal case 12. The seal case 12 has a stepped cylindrical shape, is fitted to the opening end part of the outer ring 4 at a large-diameter cylindrical part 12a, and forms a labyrinth (A) in-between the outer peripheral face of a rotary member 28 at a small-diameter cylindrical part 12d. The oil seal 18 has a main lip 20 located at the internal side of the bearing and the dust lip 22 located at the external side of the bearing. A space (a second labyrinth) (B) continuous to the labyrinth (A) is formed between the dust lip 22 and the small-diameter cylindrical part 12d of the seal case 12. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：即使密封唇20,22之间的润滑脂G从防尘唇22泄漏到外部，也可防止润滑脂密封的影响。解决方案：密封装置10由 安装在外圈4的开口端部的密封壳体12和保持在密封壳体12内的油封10.密封壳体12具有台阶状的圆筒形状，安装在开口端部 在大直径圆筒部12a的外圈4上，在小径圆筒部12d的旋转体28的外周面之间形成迷宫（A）。 油封18具有位于轴承内侧的主唇缘20和位于轴承外侧的防尘唇22。 在密封壳体12的防尘唇缘22和小直径圆筒部12d之间形成有与迷宫（A）连续的空间（第二迷宫）（B）。（C）2006，JPO＆NCIPI
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