公开(公告)号：US20160363169A1

公开(公告)日：2016-12-15

申请号：US15120769

申请日：2014-10-21

Applicant: NSK LTD.

Inventor： Minoru TAHARA

IPC: F16C33/78 ,  F16C19/06

CPC classification number: F16C33/7863 ,  F16C19/06 ,  F16C33/416 ,  F16C33/7823 ,  F16C33/7853 ,  F16C2361/63 ,  F16J15/164 ,  F16J15/3264 ,  F16J15/3456

Abstract: The slinger is arranged at an axially outermore side than the seal member. The seal member has a seal lip configured to make sliding contact with the slinger. The seal lip elastically deform so as to turn radially outwards by a centrifugal force associated with rotation of the outer ring. The slinger has a curved sliding-contact part which is formed to be curved in accordance with a movement trajectory of a tip portion of the seal lip that is elastically deformed by the centrifugal force and with which the tip portion of the seal lip is always in contact.

Abstract translation: 抛油环布置在比密封构件的轴向外挤压侧。 密封构件具有被配置为与抛油环滑动接触的密封唇。 密封唇弹性变形，以便通过与外圈的旋转相关联的离心力径向向外转动。 抛油环具有弯曲的滑动接触部分，该弯曲滑动接触部分根据密封唇的顶端部分的移动轨迹形成为弯曲的，该移动轨迹由于离心力而弹性变形，并且密封唇的顶端始终处于 联系。

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.

Inventor： Tomoya ICHIKAWA ,  Minoru TAHARA

IPC: F16H55/38 ,  F16C19/06

CPC classification number: F16H55/38 ,  F16C19/06 ,  F16C33/581 ,  F16C33/583 ,  F16C33/586 ,  F16C35/067 ,  F16C2240/42 ,  F16C2361/63 ,  F16H55/36 ,  F16H55/48 ,  F16H2200/0078

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°＆lt; 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＆nlE; h＆nlE; 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＆lt; NlE; L＆lt; ll; 0.03D的范围内。