Split rolling bearing
    3.
    发明公开
    Split rolling bearing 有权
    GeteiltesWälzlager

    公开(公告)号:EP2801728A2

    公开(公告)日:2014-11-12

    申请号:EP14178162.5

    申请日:2009-05-18

    申请人: JTEKT Corporation

    IPC分类号: F16C33/60 F16C9/02 F16C19/46

    摘要: There is provided a split rolling bearing which can suppress the reduction in durability and which can suppress largely the generation of noise or vibration which is caused in association with the passage of rolling elements over a mating surface.
    The split rolling bearing according to the invention comprises a split outer ring 2 having first and second split outer ring members 5, 6 which are formed into a cylindrical shape by being butted against each other at circumferential end portions. First flat plane portions 7 and a V-shaped recess portion 8 which is recessed in a circumferential direction are formed at one end portion 5a of the circumferential end portions which are butted against each other. Secondary flat plane portions 9 which are to be brought into abutment with the first flat plane portions 7 and a projecting portion 10 which projects in the circumferential direction from the second flat plane portion 9 so as to be introduced into the recess portion 8 are formed at an end portion 6a which is to be butted against the end portion 5a. A space S is formed between the recess portion 8 and the projecting portion 10 so as to avoid a contact between a bottom portion 8b of the recess portion 8 and a vertex portion 10b of the projecting portion 10.

    摘要翻译: 提供了能够抑制耐久性降低的分裂滚动轴承,并且能够大大抑制与滚动体在配合面上的通过相关联的噪音或振动的产生。 根据本发明的裂纹滚动轴承包括分割外圈2,其具有通过在周向端部处彼此对接而形成为圆柱形的第一和第二分割外圈构件5,6。 第一平面部7和在圆周方向上凹陷的V形凹部8形成在彼此对接的周向端部的一个端部5a处。 要与第一平面部分7抵接的次平面部分9和从第二平面部分9沿圆周方向突出以引入凹部8的突出部分10形成在 与顶端部5a抵接的端部6a。 在凹部8与突出部10之间形成有空隙S,以避免凹部8的底部8b与突出部10的顶点10b的接触。

    Rotary equipment and oil pump
    5.
    发明公开
    Rotary equipment and oil pump 有权
    Rotationsvorrichtung undÖlpumpe

    公开(公告)号:EP2034185A2

    公开(公告)日:2009-03-11

    申请号:EP08163776.1

    申请日:2008-09-05

    IPC分类号: F04C2/344

    摘要: An oil pump has: a base part 1 having a working chamber 11; and a rotor 3 provided rotatably in the working chamber 11. The base part 1 is configured by a plurality of split bodies 13, 18. At least one split body 18 (rear housing) out of the plurality of split bodies 13, 18 is made of aluminum alloy, and on which an opposed sliding surface 180 made of a ceramic film 185 is formed. The ceramic film 185 of the opposed sliding surface 180 has a hardness of approximately Hv 500 to 1100 and a surface roughness of approximately 2 to 8 micrometers, and contains α - alumina and zirconia.

    摘要翻译: 油泵具有:具有工作室(11)的基部(1); 以及可旋转地设置在所述工作室(11)中的转子(3)。 基部(1)由多个分割体(13,18)构成。 多个分割体(13,18)中的至少一个分体(18)(后壳体)由铝合金制成,并且在其上形成由陶瓷膜(185)制成的相对的滑动表面(180) 。 相对的滑动表面(180)的陶瓷膜(185)的硬度为约500〜1100左右,表面粗糙度约为2〜8微米,含有± - 氧化铝和氧化锆。

    Rolling bearing for x-ray tube and x-ray tube apparatus
    6.
    发明公开
    Rolling bearing for x-ray tube and x-ray tube apparatus 审中-公开
    KugellagerfürRöntgenstrahlleitungundRöntgenstrahlgerät

    公开(公告)号:EP1975428A1

    公开(公告)日:2008-10-01

    申请号:EP08005855.5

    申请日:2008-03-27

    申请人: JTEKT Corporation

    摘要: In a first rolling bearing (8) of this X-ray tube apparatus (1), an ion nitriding layer is formed on a raceway surface of an inner ring (11), and an ion nitriding layer is formed on a raceway surface of an outer ring (18). As the results, surface hardness of the raceway surface of the inner ring (11) and the raceway surface of the outer ring (18) is enhanced, and abrasion resistance can be improved. On the other hand, in a second rolling bearing (10), an ion nitriding layer and a diamond-like carbon film are successively formed on a raceway surface of an inner ring (12), and an ion nitriding layer and a diamond-like carbon film are successively formed on a raceway surface of an outer ring (20). As the results, the second rolling bearing (10) which is positioned closer to the target (3) has a double hardening structure.

    摘要翻译: 在该X射线管装置(1)的第一滚动轴承(8)中,在内圈(11)的滚道面上形成有离子渗氮层,在 外环(18)。 结果,内圈(11)的轨道面和外圈(18)的轨道面的表面硬度提高,耐磨耗性提高。 另一方面,在第二滚动轴承(10)中,在内圈(12)的滚道面上依次形成离子渗氮层和类金刚石碳膜,并且将离子渗氮层和金刚石状碳膜 碳膜依次形成在外圈(20)的滚道面上。 结果,位于靠近目标(3)的第二滚动轴承(10)具有双重硬化结构。

    Bearing with lubricating means
    8.
    发明公开
    Bearing with lubricating means 有权
    有润滑装置的滚动

    公开(公告)号:EP2078877A3

    公开(公告)日:2012-11-21

    申请号:EP09000247.8

    申请日:2009-01-09

    申请人: JTEKT Corporation

    摘要: A bearing apparatus includes: two split outer ring halves (3a,3b) which includes outer ring raceway surfaces and are disposed within a supporting hole (13) of the housing, respectively; and a plurality of rollers which are disposed on respective inner surfaces of the both split outer ring halves and supports a shaft. Each of the two split outer ring halves includes an oil hole (8a,8b) penetrating the split outer ring half in a radial direction thereof and an oil groove (9) formed on an outer diameter surface of the split outer ring half along a circumferential direction thereof to allow the oiling passage and the oil holes to communicate with each other. Each of the oil holes is disposed at a position located at an angle of within 45° from the joint surface of the split outer ring halves in an opposite direction to a rotating direction of the shaft.