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    BEARING SEAL AND ROLLING BEARING WITH SEAL
    2.
    发明公开
    BEARING SEAL AND ROLLING BEARING WITH SEAL 审中-公开
    轴承密封，并密封件支承

    公开(公告)号：EP2944838A1

    公开(公告)日：2015-11-18

    申请号：EP14738313.7

    申请日：2014-01-09

    申请人： NTN Corporation

    发明人： KANAMOTO Takahiro ,  INOUE Wakana

    IPC分类号： F16C33/78 ,  F16C19/06 ,  F16J15/447

    CPC分类号： F16C33/783 ,  F16C19/06 ,  F16C33/7846 ,  F16C33/7856 ,  F16C2300/14 ,  F16C2360/31 ,  F16J15/3276

    摘要： A bearing seal is provided which can be easily fitted into a seal groove formed in an outer race, and be kept firmly mounted to the outer race. First detent ribs (44) and second detent ribs (45) are formed on both surfaces of one side of a seal base plate (42) made of rubber and having the shape of a stripe. When one side of the seal base plate (42) is fitted into the seal groove (3) formed in the inner diameter surface of the outer race (1), the first and second detent ribs (44), (45) come into elastic contact with the side surfaces (3a, 3b) of the seal groove (3), respectively, so as to prevent the bearing seal from being pulled out of the seal groove (3). Thus, it is possible to keep the bearing seal stably mounted to the outer race.

    DOUBLE-ROW ROLLING BEARING
    4.
    发明公开
    DOUBLE-ROW ROLLING BEARING 审中-公开
    列滚子轴承

    公开(公告)号：EP2916018A1

    公开(公告)日：2015-09-09

    申请号：EP13850667.0

    申请日：2013-10-08

    申请人： NTN Corporation

    发明人： KANAMOTO Takahiro ,  INOUE Wakana

    IPC分类号： F16C33/60 ,  F16C19/18 ,  F16C25/06 ,  F16C33/58

    CPC分类号： F16C33/605 ,  A61B6/035 ,  F16C19/08 ,  F16C19/184 ,  F16C25/06 ,  F16C33/60 ,  F16C33/785 ,  F16C43/04 ,  F16C2226/60 ,  F16C2226/62 ,  F16C2300/14 ,  F16C2316/10

    摘要： Provided is a double-row rolling bearing (1), including: an outer member (2) having two raceway surfaces (6, 6) on an inner circumference thereof; an inner member (3) having two raceway surfaces (7, 7) on an outer circumference thereof, the inner member (3) being arranged on an inner side of the outer member (2); two rows of rolling elements (4, 4) assembled into a space between each of the two raceway surfaces (6, 6) of the outer member (2) and each of the two raceway surfaces (7, 7) of the inner member (3); and a retainer (5) for retaining the rolling elements (4), any one of the outer member (2) and the inner member (3) including a pair of raceway rings (3a, 3b), both the pair of raceway rings (3a, 3b) being fastened with a fixing bolt (16), the pair of raceway rings (3a, 3b) having positioning holes (13a, 13b) into which a positioning member (14, 14') is fit-inserted, to thereby suppress misalignment in a radial direction of the pair of raceway rings (3a, 3b).

    BALL BEARING FOR SPINDLE WITH BUILT-IN MOTOR
    6.
    发明公开
    BALL BEARING FOR SPINDLE WITH BUILT-IN MOTOR 审中-公开
    带内置马达的主轴球轴承

    公开(公告)号：EP3173644A1

    公开(公告)日：2017-05-31

    申请号：EP15824733.8

    申请日：2015-07-14

    申请人： NTN Corporation

    发明人： KANAMOTO Takahiro ,  KOYAMA Mineo ,  NASU Keisuke

    IPC分类号： F16C37/00 ,  F16C19/06 ,  F16C33/58 ,  F16C33/66 ,  F16C33/78

    摘要： An object is to provide a motor-incorporation-spindle ball bearing capable of allowing cooling air which enters inside the bearing of the motor-incorporation-spindle to be discharged smoothly out of the bearing without causing turbulent flow inside the bearing, does not cause a retainer 14 easily to be vibrated, and provides a high level of silent operation.
    A seal plate 15 has a length to allow air to pass through the bearing from an entrance side toward an exit side substantially straightly without resistance. Therefore, the seal plate 15 is less likely to be exposed to unnecessary force when the air passes through the bearing; the seal plate 15 is prevented from wobble and deformation; stable sealing is ensured; the air is discharged smoothly without causing turbulent flow inside the bearing; a retainer 14 is not easily vibrated, and silent operation is maintained.

    摘要翻译： 本发明的目的是提供一种电动机装入主轴球轴承，其能够使进入电动机装入主轴的轴承内部的冷却空气平稳地排出轴承而不会引起轴承内部的紊流，并且不会导致 保持架14容易振动，并提供高水平的静音操作。 密封板15具有允许空气基本上直线地从入口侧朝向出口侧穿过轴承而没有阻力的长度。 因此，当空气通过轴承时密封板15不太可能受到不必要的力; 防止密封板15摆动和变形; 确保稳定的密封; 空气顺利排出而不会在轴承内部产生湍流; 保持架14不容易振动，并保持静音操作。