公开(公告)号：US20160017978A1

公开(公告)日：2016-01-21

申请号：US14773774

申请日：2014-03-12

Applicant: NTN CORPORATION

Inventor： Tsuyoshi KODA ,  Tomoyoshi IZUTSU

IPC: F16H55/44

CPC classification number: F16H55/44

Abstract: A pressed pulley is provided of which the inner diameter of an inner tubular portion can be increased without changing the outer diameter of an outer tubular portion. The pulley includes an annular connecting portion (13) connected to an end of the outer tubular portion (11) around which a belt is wound and an end of the inner tubular portion (12). The connecting portion is an annular bent portion having a circular arc-shaped section and formed with an inner circular arc-shaped surface (15) having a constant radius of curvature and connected to the radially inner surface of the outer tubular portion (11) and the radially outer surface of the inner tubular portion (12) through respective tangential lines.

Abstract translation: 提供了一种压制滑轮，可以在不改变外部管状部分的外径的情况下增加内部管状部分的内径。 滑轮包括连接到外部管状部分（11）的端部的环形连接部分（13），带状物缠绕在该端部上，并且内部管状部分（12）的端部。 连接部分是具有圆弧形部分并形成有具有恒定曲率半径的内圆弧形表面（15）的环形弯曲部分，并且连接到外部管状部分（11）的径向内表面，并且 内管状部分（12）的径向外表面通过相应的切线。

公开(公告)号：US20170314653A1

公开(公告)日：2017-11-02

申请号：US15522534

申请日：2015-10-23

Applicant: NTN CORPORATION

Inventor： Tomoyoshi IZUTSU

IPC: F16H13/14 ,  F16H55/32 ,  F16H13/04

CPC classification number: F16H13/14 ,  F02B67/04 ,  F16H13/04 ,  F16H55/32

Abstract: 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.

公开(公告)号：US20170261079A1

公开(公告)日：2017-09-14

申请号：US15511373

申请日：2015-09-15

Applicant: NTN CORPORATION

Inventor： Tomoyoshi IZUTSU

IPC: F16H13/10 ,  F16H13/04

CPC classification number: F16H13/10 ,  F16H13/02 ,  F16H13/04 ,  F16H13/14

Abstract: A power transmission roller assembly is provided which includes a roller body to be brought into abutment with the driving roller and the driven roller; a pivot shaft fixed to a vehicle body; a pivot arm provided radially inside of the roller body, and pivotally mounted on the pivot shaft; a roller support bearing rotatably supporting the roller body; and a pair of biasing members provided on the pivot arm. The pair of biasing members bias the roller support bearing to a predetermined position between the driving and driven rollers where the abutment forces between the roller body and the driving and driven rollers balance with each other.

公开(公告)号：US20180106295A1

公开(公告)日：2018-04-19

申请号：US15556418

申请日：2016-02-17

Applicant: NTN CORPORATION

Inventor： Tsuyoshi KODA ,  Tomoyoshi IZUTSU

IPC: F16C33/66 ,  F16C19/06 ,  F16C33/38

Abstract: The present invention relates to a retainer for a bearing. The retainer is entirely formed into an annular shape and has a crown shape. The retainer includes pockets (15c) 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 (15c) retain balls (14) being rolling elements so that the balls (14) are rollable. A grease flow-in passage (22) is provided between an inner surface (18) of each of the plurality of pockets and each of the balls.

公开(公告)号：US20180079988A1

公开(公告)日：2018-03-22

申请号：US15559413

申请日：2016-03-09

Applicant: NTN CORPORATION

Inventor： Masaharu INOUE ,  Kazuhiro WATANABE ,  Tomoyoshi IZUTSU ,  Takayuki KAWAMURA ,  Hiroyuki AMARI ,  Minoru HASEGAWA ,  Kouhei NAKANO

IPC: C10M169/00 ,  C10M105/36 ,  C10M101/00 ,  C10M111/02 ,  C10M115/08 ,  C10M125/10 ,  C10M139/00 ,  C10M141/12

Abstract: 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.