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    • 41. 发明专利
    • Bearing device for machine tool main spindle
    • 用于机床主轴的轴承装置
    • JP2008133887A
    • 2008-06-12
    • JP2006320016
    • 2006-11-28
    • Ntn CorpNtn株式会社
    • TAKIUCHI HIROSHITANAKA YASUTSUGU
    • F16C37/00B23B19/02F16C19/16
    • F16C37/007B23Q1/70B23Q11/123F16C19/545F16C33/6633F16C2322/39
    • PROBLEM TO BE SOLVED: To suppress a rise in temperature and an heat expansion of an angular contact ball bearing fitted in a housing by releasing heat thereof to the housing while maintaining the amount of looseness of the angular contact ball bearing. SOLUTION: Heat conductive grease 3 containing inorganic powder as a heat conductive material is placed between each outer ring 2a of the combination angular contact ball bearing 2 loosely fitted in the housing 12 and the inner diameter surface of the housing 12, whereby the heat of the combination angular contact ball bearing 2 is released from each outer ring 2a to the housing 12 through the heat conductive grease 3. It is thus possible to suppress a rise in temperature and heat expansion of the angular contact ball bearing 2 with the amount of looseness of fitting of the angular contact ball bearing 2. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了通过将角度接触球轴承的角度接触球轴承的松动量保持在壳体中而将其散热来抑制装配在壳体中的角接触球轴承的温度升高和热膨胀。 解决方案:将包含无机粉末作为导热材料的导热油脂3放置在松散地装配在壳体12中的组合角接触球轴承2的外环2a和壳体12的内径表面之间,由此, 组合角接触球轴承2的热量通过导热油脂3从每个外圈2a释放到壳体12上。因此,可以抑制角接触球轴承2的温度和热膨胀的上升量 角接触球轴承2的安装松动。版权所有(C)2008,JPO&INPIT
    • 44. 发明专利
    • Retainer for bearing
    • 轴承保持器
    • JP2005321047A
    • 2005-11-17
    • JP2004139998
    • 2004-05-10
    • Nsk Ltd日本精工株式会社
    • TAGUCHI IKUO
    • F16C33/38F16C33/66
    • F16C33/6681F16C33/3843F16C37/007
    • PROBLEM TO BE SOLVED: To provide a retainer for a bearing of simple constitution, in which seizure of the bearing due to heating can be prevented even under high-load conditions at low rotation.
      SOLUTION: In this retainer 3 for a bearing, a lubricant guide part is provided between adjoining retaining parts 3a to connect both side end parts of the retainer 3 in a straight line direction inclined by a prescribed angle α to the axial direction of an inner ring 1 for guiding lubricant. The lubricant guide part comprises a tubular hole 3b formed to penetrate both side end parts of the retainer 3, or a groove 3c (or a projection 3d) formed in an outer circumferential surface of the retainer 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供一种用于简单结构的轴承的保持器,其中即使在低转速的高负载条件下也可以防止由于加热而导致的轴承的卡住。 解决方案:在该轴承用保持架3中,在相邻的保持部3a之间设置润滑引导部,将保持器3的两侧端部沿与轴方向倾斜规定角度α的直线方向 用于引导润滑剂的内圈1。 润滑剂引导部包括形成为穿过保持器3的两个侧端部的管状孔3b或形成在保持器3的外周面的槽3c(或突起3d)。版权所有(C) 2006年,JPO&NCIPI