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8 条记录 (耗时 0.021 秒)

    Rolling bearing having rolling elements whose major component is zirconia
    4.
    发明授权
    Rolling bearing having rolling elements whose major component is zirconia 有权
    滚动轴承具有主要成分为氧化锆的滚动元件

    公开(公告)号：US06174089B1

    公开(公告)日：2001-01-16

    申请号：US09244029

    申请日：1999-02-04

    申请人： Kazuhisa Kitamura ,  Hiroaki Takebayashi ,  Tomoya Hattori

    发明人： Kazuhisa Kitamura ,  Hiroaki Takebayashi ,  Tomoya Hattori

    IPC分类号： F16C3332

    CPC分类号： F16C33/62 ,  F16C33/30 ,  F16C2316/13 ,  F16C2370/12

    摘要： There is provided a rolling bearing which is capable of reducing vibrations and noise while satisfying requirements of high-speed rotation and prolonged life of grease. Balls are formed of a ceramic material whose major component is zirconia and which has a Young's modulus of 250 GPa or lower. The zirconia content of the ceramic material is not less than 80 wt %. The ceramic material is sintered by HIP. The balls are low in Young's modulus, allowing the contact surface pressure between rolling element and raceway to be lowered, so that the bearing can be reduced in vibrations and noise. Also, the bearing is high in durability because of HIP sintering.

    摘要翻译： 提供了一种能够在满足高速旋转和润滑脂寿命延长的同时减少振动和噪音的滚动轴承。 球由主要成分为氧化锆，杨氏模量为250GPa以下的陶瓷材料形成。 陶瓷材料的氧化锆含量不小于80重量％。 陶瓷材料通过HIP烧结。 球的杨氏模量低，允许滚动元件和滚道之间的接触表面压力降低，使得轴承可以减少振动和噪音。 此外，由于HIP烧结，轴承的耐久性高。

    Tapered roller bearing
    5.
    发明授权
    Tapered roller bearing 有权
    圆锥滚子轴承

    公开(公告)号：US07950856B2

    公开(公告)日：2011-05-31

    申请号：US12073326

    申请日：2008-03-04

    申请人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

    发明人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

    IPC分类号： F16C33/66 ,  F16C33/58

    CPC分类号： F16C37/007 ,  F16C19/364 ,  F16C33/6674 ,  F16C33/6685 ,  F16C33/7813 ,  F16C33/7889 ,  F16C2240/40 ,  F16C2361/61

    摘要： A tapered roller bearing includes: an oil guide member that opens and closes an annular opening between an outer peripheral surface of a large rib of an inner ring and an outer ring and is mounted on the large rib; and a discharge port that discharges, along the outer peripheral surface of the large rib, lubricating oil and is formed through an inner peripheral portion of the oil guide member. The oil guide member includes a closing portion for closing the annular opening. When a fluid pressure of the lubricating oil which flows through pockets of a cage toward an inner peripheral surface of the outer ring is below a predetermined values, the closing portion closes the annular opening and guides the lubricating oil toward the discharge port. When the fluid pressure exceeds the predetermined value, the closing portion opens the annular opening.

    摘要翻译： 一种圆锥滚子轴承，包括：导油构件，其在内圈的大肋的外周面与外圈之间开闭所述环状开口，并安装在所述大肋上; 以及排出口，其沿着大肋的外周面排出润滑油，并且通过导油构件的内周部形成。 导油构件包括用于封闭环形开口的封闭部分。 当流过保持器的凹穴朝向外圈的内周面的润滑油的流体压力低于预定值时，关闭部分封闭环形开口并将润滑油引向排出口。 当流体压力超过预定值时，关闭部分打开环形开口。

    Tapered roller bearing
    6.
    发明申请
    Tapered roller bearing 有权
    圆锥滚子轴承

    公开(公告)号：US20080219606A1

    公开(公告)日：2008-09-11

    申请号：US12073326

    申请日：2008-03-04

    申请人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

    发明人： Takashi Sada ,  Hiroki Matsuyama ,  Tomoya Hattori

    IPC分类号： F16C33/10 ,  F16C33/58

    CPC分类号： F16C37/007 ,  F16C19/364 ,  F16C33/6674 ,  F16C33/6685 ,  F16C33/7813 ,  F16C33/7889 ,  F16C2240/40 ,  F16C2361/61

    摘要： A tapered roller bearing includes: an oil guide member that opens and closes an annular opening between an outer peripheral surface of a large rib of an inner ring and an outer ring and is mounted on the large rib; and a discharge port that discharges, along the outer peripheral surface of the large rib, lubricating oil and is formed through an inner peripheral portion of the oil guide member. The oil guide member includes a closing portion for closing the annular opening. When a fluid pressure of the lubricating oil which flows through pockets of a cage toward an inner peripheral surface of the outer ring is below a predetermined values, the closing portion closes the annular opening and guides the lubricating oil toward the discharge port. When the fluid pressure exceeds the predetermined value, the closing portion opens the annular opening.

    摘要翻译： 一种圆锥滚子轴承，包括：导油构件，其在内圈的大肋的外周面与外圈之间开闭所述环状开口，并安装在所述大肋上; 以及排出口，其沿着大肋的外周面排出润滑油，并且通过导油构件的内周部形成。 导油构件包括用于封闭环形开口的封闭部分。 当流过保持器的凹穴朝向外圈的内周面的润滑油的流体压力低于预定值时，关闭部分封闭环形开口并将润滑油引向排出口。 当流体压力超过预定值时，关闭部分打开环形开口。