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公开(公告)号：US10295027B2
公开(公告)日：2019-05-21
申请号：US15522534
申请日：2015-10-23
申请人： NTN CORPORATION
发明人： Tomoyoshi Izutsu
摘要： A power transmission roller assembly includes a power transmission roller configured to be brought into contact with the driving roller and the driven roller, a pivot shaft fixed to a vehicle body, a pivot arm arranged radially inside of the power transmission roller and pivotally mounted on the pivot shaft, and a roller support bearing rotatably supporting the power transmission roller. A pair of biasing members are mounted to the pivot arm and bias the roller support bearing to a predetermined position between the driving roller and the driven roller such that the abutment force between the driving roller and the power transmission roller is balanced with the abutment force between the driven roller and the power transmission roller. Sliding members are mounted on respective shafts of the biasing members to extend through the sliding members, and frictional forces are generated between the sliding members and the respective shafts.
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公开(公告)号：US20150093060A1
公开(公告)日：2015-04-02
申请号：US14389467
申请日：2013-04-11
申请人： NTN CORPORATION
发明人： Tomohisa Uozumi , Tomoyoshi Izutsu
CPC分类号： F16C33/6681 , F16C19/06 , F16C33/3875 , F16C33/4605 , F16C33/4652 , F16C33/583 , F16C33/7893 , F16C33/80 , F16C2208/36 , F16C2208/52 , F16C2208/60 , F16C2208/62 , F16C2208/90
摘要： A rolling bearing includes inner and outer races rotatable relative to each other, a plurality of rolling elements interposed between the inner and outer races, and a retainer arranged between the inner and outer races for retaining the plurality of rolling elements equiangularly. Flange portions are formed on a radially inner side and a radially outer side of an axial end portion of the retainer so as to extend radially. Recessed grooves are formed in a region of the inner race and a region of the outer race corresponding to the respective flange portions so as to form labyrinths together with the flange portions. Inner side surfaces of the flange portions and axial end surfaces of the recessed grooves, which are opposed to the inner side surfaces of the flange portions, are inclined radially so as to generate a flow of lubricant.
摘要翻译： 滚动轴承包括可相对于彼此旋转的内座圈和外座圈，插入在内座圈和外座圈之间的多个滚动元件，以及设置在内座圈和外座圈之间的用于等轴地保持多个滚动元件的保持器。 凸缘部形成在保持器的轴向端部的径向内侧和径向外侧，以径向延伸。 在内座圈的区域和外圈的与相应的凸缘部分相对应的区域中形成凹槽，以便与凸缘部分一起形成迷宫。 与凸缘部的内侧面相对的凸缘部的内侧面和凹槽的轴向端面，径向地倾斜，产生润滑剂的流动。
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公开(公告)号：US10570961B2
公开(公告)日：2020-02-25
申请号：US15556418
申请日：2016-02-17
申请人： NTN CORPORATION
发明人： Tsuyoshi Koda , Tomoyoshi Izutsu
摘要： A retainer for a bearing is entirely formed into an annular shape and has a crown shape. The retainer includes pockets which are formed at a plurality of locations in a circumferential direction of the retainer and are each opened on a radially outer side and a radially inner side. The pockets retain balls being rolling elements so that the balls are rollable. A grease flow-in passage is provided between an inner surface of each of the plurality of pockets and each of the balls.
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公开(公告)号：US10465140B2
公开(公告)日：2019-11-05
申请号：US15559413
申请日：2016-03-09
申请人： NTN CORPORATION
发明人： Masaharu Inoue , Kazuhiro Watanabe , Tomoyoshi Izutsu , Takayuki Kawamura , Hiroyuki Amari , Minoru Hasegawa , Kouhei Nakano
IPC分类号： C10M169/00 , C10M111/04 , C10M169/02 , C10M105/36 , C10M115/08 , C10M125/10 , C10M169/06 , C10M137/10 , C10M105/04 , C10M107/02 , C10M129/58
摘要： It is an object of the present invention to provide a grease composition, for an outer ring rotation type rolling bearing, which is capable of satisfying all of high-temperature durability, low-temperature property, peeling resistance, and rust-preventive property. A grease composition (7) to be enclosed in the outer rig rotation type rolling bearing for use in automotive electric auxiliary machines contains base oil, a thickener, a peeling-resistant additive, a wear-resistant additive, and a rust-preventive agent. The base oil is mixed oil of trimellitic acid ester oil and synthetic hydrocarbon oil mixed therewith in a mass ratio of (70:30) to (90:10). The thickener consists of a diurea compound shown by a formula (1). R1—NHCONH—R2—NHCONH—R1 (1) wherein a reference symbol R2 denotes a divalent aromatic hydrocarbon group having a carbon number of 6 to 15, and a reference symbol R1 denotes a cyclohexyl group.
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公开(公告)号：US10088031B2
公开(公告)日：2018-10-02
申请号：US14773774
申请日：2014-03-12
申请人： NTN CORPORATION
发明人： Tsuyoshi Koda , Tomoyoshi Izutsu
摘要： A pressed pulley includes an annular connecting portion connected to an end of the outer tubular portion around which a belt is wound and an end of the inner tubular portion. The connecting portion is an annular bent portion having a circular arc-shaped section and formed with an inner circular arc-shaped surface having a constant radius of curvature and connected to the radially inner surface of the outer tubular portion and the radially outer surface of the inner tubular portion through respective tangential lines.
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