TWO-PIECE MOLDED PULLEY HAVING RADIAL BEARING DISTORTION-REDUCING CHARACTERISTICS

    公开(公告)号:US20180023679A1

    公开(公告)日:2018-01-25

    申请号:US15216837

    申请日:2016-07-22

    Abstract: A two piece pulley is provided in which the pulley main housing and the outer pulley shell are molded without the bearing in place, thus eliminating an over-molding process. The pulley main housing is molded with a bear slip fit pocket. At least one of the bearing races of the bearing assembly includes an axially-protruding raised surface such as knurls or bumps. Each of the pulley main housing and the outer shell includes a bearing shield. On assembly, the bearing is slipped into the pocket on the pulley main housing and the outer shell is then ultrasonically welded to the main housing, thereby compressing the pulley material axially into the raised surface of the bearing race, locking the outer race of the bearing to the pulley in an axial direction. The raised surface on the bearing race allows the bearing assembly to grip the pulley in an axial direction.

    PULLEY DEVICE WITH RETAINING PLUG
    5.
    发明申请
    PULLEY DEVICE WITH RETAINING PLUG 审中-公开
    带保留插头的PULLEY设备

    公开(公告)号:US20170059013A1

    公开(公告)日:2017-03-02

    申请号:US15244611

    申请日:2016-08-23

    Abstract: A pulley device that includes a bearing, a pulley mounted on the bearing and two shields disposed axially on either side of the bearing is provided. The device further includes one retaining plug mounted into a bore of the bearing and a bore of each shield. The retaining plug is fitted at least in the bore of the bearing and cooperates by contact with the shields to retain the shields on the plug.

    Abstract translation: 提供了一种滑轮装置,其包括轴承,安装在所述轴承上的滑轮和轴向设置在所述轴承的任一侧上的两个屏蔽件。 该装置还包括安装在轴承的孔中的一个保持塞和每个护罩的孔。 保持塞至少安装在轴承的孔中,通过与屏蔽接触来配合,以将屏蔽保持在插头上。

    CYLINDRICAL ROLLER BEARING AND TRANSMISSION BEARING DEVICE
    7.
    发明申请
    CYLINDRICAL ROLLER BEARING AND TRANSMISSION BEARING DEVICE 审中-公开
    圆柱滚子轴承和传动轴承装置

    公开(公告)号:US20160298677A1

    公开(公告)日:2016-10-13

    申请号:US15038275

    申请日:2014-11-18

    Applicant: NSK LTD.

    Abstract: A cylindrical roller bearing includes an outer ring having, on an inner circumferential surface, an outer ring raceway and a pair of outer ring ribs which are provided on both sides of the outer ring raceway in an axial direction, an inner ring having, on an outer circumferential surface, an inner ring raceway and an inner ring rib which is provided on one side of the inner ring raceway in the axial direction, and a plurality of cylindrical rollers disposed between the outer ring raceway and the inner ring raceway. A radial height of the outer ring rib is greater than a radial height of the inner ring rib, and a radial clearance between the outer ring rib and the inner ring rib is set to be equal to or less than 2 mm.

    Abstract translation: 一种圆筒滚子轴承,包括在内周面上具有外圈滚道和一对外圈肋的外圈,所述外圈滚道沿轴向设置在所述外圈滚道的两侧,内圈具有: 外周面,内圈滚道和设置在内圈滚道的轴向一侧的内圈肋,以及设置在外圈滚道和内圈滚道之间的多个圆柱滚子。 外环肋的径向高度大于内环肋的径向高度,外环肋与内环肋之间的径向间隙设定为2mm以下。

    PULLEY APPARATUS
    8.
    发明申请
    PULLEY APPARATUS 审中-公开

    公开(公告)号:US20160201788A1

    公开(公告)日:2016-07-14

    申请号:US14991990

    申请日:2016-01-10

    Applicant: NSK Ltd.

    Abstract: Construction is achieved by which it is possible definitely prevent the occurrence of creep between a pulley 2b and an outer ring 7f. Trapezoidal shaped concave sections are formed such that the angle of intersection θ between the inside surfaces 23 on both sides of each concave section 17a of knurling 19a of the outer ring 7f is within the range 45°≦θ≦120°. Moreover, the depth h in the radial direction of the concave sections 17a and the diameter D of the circumscribed circle of the tip end surfaces 22 of the convex sections 18a are regulated so as to satisfy the relationship 0.004D≦h≦0.015D, and the length L in the circumferential direction of the bottom surface 21 of the concave sections 17a is regulated within the range 0.01D≦L≦0.03D.

    Abstract translation: 通过该结构可以确实地防止滑轮2b和外圈7f之间的蠕变发生。 形成梯形凹部,使得交叉角度和角度; 在外环7f的滚花19a的各凹部17a的两侧的内侧面23之间的距离为45°< l1;&ls;&nl; 120°。 此外,凹部17a的径向的深度h和凸部18a的前端面22的外接圆的直径D被调节为满足关系0.004D≦̸ h≦̸ 0.015D,以及 凹部17a的底面21的圆周方向的长度L被调节在0.01D< NlE; L< ll; 0.03D的范围内。

    Tensioner assembly
    9.
    发明授权
    Tensioner assembly 有权
    张紧器总成

    公开(公告)号:US09388882B2

    公开(公告)日:2016-07-12

    申请号:US13947201

    申请日:2013-07-22

    Abstract: A tensioner assembly includes a pulley arm pivotable about a pivot shaft, and a tension pulley mounted on the pulley arm at its end remote from the pivot shaft and pressed against a belt to keep the tension of the belt. The tension pulley is rotatably mounted around a base portion of the pulley arm through a rolling bearing with the inner surface and axial rear end surface of the bearing inner race in contact with the outer peripheral surface of the base portion and an end surface of a shoulder of the base portion, respectively. The base portion has an axial through hole formed with an internal thread on its inner surface. A support bolt is threaded into the through hole from the axial front end to press the rolling bearing against the end surface of the shoulder. The internal thread has an axial front end located in the vicinity of, or axially rearwardly of, the end surface of the shoulder.

    Abstract translation: 张紧器组件包括可围绕枢转轴线枢转的滑轮臂,以及安装在滑轮臂上的张力滑轮,其远端远离枢轴并被压靠皮带以保持皮带的张力。 张力滑轮通过滚动轴承可旋转地安装在滑轮臂的基部周围,轴承内圈的内表面和轴向后端表面与基部的外周表面和肩部的端面接触 的基部。 基部具有在其内表面上形成有内螺纹的轴向通孔。 支撑螺栓从轴向前端螺纹连接到通孔中,以将滚动轴承按压在肩部的端面上。 内螺纹具有位于肩部的端表面附近或轴向后方的轴向前端。

    FULCRUM BEARING DEVICE FOR PULLEY ARM
    10.
    发明申请
    FULCRUM BEARING DEVICE FOR PULLEY ARM 有权
    用于PULLEY ARM的FULCRUM轴承装置

    公开(公告)号:US20150275976A1

    公开(公告)日:2015-10-01

    申请号:US14438233

    申请日:2013-10-23

    Abstract: In a fulcrum bearing device for a pulley arm, a sleeve is inserted in a shaft hole formed in a boss portion of a pulley arm, washers are fitted on the outer peripheries of small diameter tube portions formed at the respective end portions of the sleeve, and the sleeve is fixed to an engine block by means of a bolt inserted through the sleeve and tightened, so that the pulley arm is pivotally supported. The shaft hole is formed at its respective end portions with seal receiving recesses having large diameters. Each seal member includes a cylindrical portion provided on its outer peripheral portion and press-fitted in the seal receiving recess, and a radial lip extending obliquely inwardly and provided on the inner periphery of the seal member. The distal end portions of the radial lips are kept in elastic contact with the outer diameter surface of the sleeve.

    Abstract translation: 在用于带轮臂的支点支承装置中,套筒插入形成在带轮臂的凸起部分的轴孔中,垫圈安装在形成在套筒的各个端部处的小直径管部分的外周, 并且通过插入穿过套筒的螺栓将套筒固定到发动机缸体上并被紧固,使得滑轮臂被枢转地支撑。 轴孔在其各自的端部处形成有具有大直径的密封接收凹部。 每个密封构件包括设置在其外周部分上并压配合在密封件容纳凹部中的圆柱形部分,以及倾斜向内延伸并设置在密封构件的内周上的径向唇缘。 径向唇缘的远端部分与套筒的外径表面保持弹性接触。

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