公开(公告)号：US20070232428A1

公开(公告)日：2007-10-04

申请号：US11727842

申请日：2007-03-28

申请人： Kazuki Hamada ,  Kunio Yanai ,  Akira Yamamoto ,  Hirokazu Arai

发明人： Kazuki Hamada ,  Kunio Yanai ,  Akira Yamamoto ,  Hirokazu Arai

IPC分类号： F16H55/36 ,  F16H55/14 ,  F16H7/20

CPC分类号： F16H55/48 ,  F16C19/06 ,  F16C33/586 ,  F16C35/067 ,  F16C2226/30 ,  F16C2361/63

摘要： A bearing device equipped with a resin-made pulley has, at one axial end portion of an outer ring, cutout portions which are formed so as to be opened on their outward side of the axial direction and spaced from one another at a specified interval in a circumferential direction of the outer ring. Each cutout portion has a rectangular-shaped sloped surface which is sloped radially outward of the outer ring along an axial direction from an opening-side end to the center of the outer ring so as to adjoin the cylindrical surface portion on the axially opposite side to the opening. Each cutout portion further has side faces which are generally parallel to a vertical bisector plane of the sloped surface containing a center axis of the outer ring on circumferential both sides of the sloped surface in a cross section perpendicular to the center axis of the outer ring.

摘要翻译： 装备有树脂制皮带轮的轴承装置在外圈的一个轴向端部具有切口部，该切口部形成为在轴向的外侧开口并以规定的间隔彼此间隔开 外圈的圆周方向。 每个切口部分具有一个矩形的倾斜表面，其沿着从开口侧端部到外圈中心的轴向方向在外圈的径向外侧倾斜，以便在轴向相对侧的圆柱形表面部分相邻 开幕。 每个切口部分还具有大致平行于倾斜表面的垂直平分线平面的侧面，该侧面在与外圈的中心轴线垂直的横截面中在倾斜表面的周向两侧包含外环的中心轴线。

公开(公告)号：US5544963A

公开(公告)日：1996-08-13

申请号：US290306

申请日：1994-08-12

申请人： Kazuhisa Kajihara ,  Motoshi Kawamura ,  Kunio Yanai

发明人： Kazuhisa Kajihara ,  Motoshi Kawamura ,  Kunio Yanai

IPC分类号： F16C33/78 ,  F16J15/32

CPC分类号： F16C33/726 ,  F16C33/7823 ,  F16C33/7853 ,  F16C2240/40

摘要： A seal assembly interposed annularly between the inner and outer rings of a bearing assembly to seal an annular cavity formed between the inner and outer rings of the bearing assembly, the seal assembly having an annular seal member fitted onto the inner peripheral surface of the outer ring, a first annular seal lip, and a second annular seal lip, the first annular seal lip being in elastic-contact with the sidewall of an annular groove formed in the inner peripheral surface of the inner ring. The first annular seal lip has a radial length and an axial thickness satisfying a ratio (A/B) of the radial length (A) to the axial thickness (B), the ratio (A/B) being in the range of not less than 4.5 and not more than 7.0 to obtain a moderate rigidity capable of following the relative movement of the inner and outer rings. Communicating grooves are formed in the lower end portion of the first annular seal lip for communicating between the inside and outside of the bearing assembly, in order to prevent an increase in pressure within the bearing assembly because of a rise in temperature within the bearing assembly.

摘要翻译： 一种密封组件，其环形地插入在轴承组件的内圈和外圈之间，以密封形成在轴承组件的内圈和外圈之间的环形空腔，密封组件具有安装在外圈的内周表面上的环形密封件 第一环形密封唇和第二环形密封唇，所述第一环形密封唇与形成在所述内圈的内周表面中的环形槽的侧壁弹性接触。 第一环形密封唇具有径向长度和轴向厚度，其满足径向长度（A）与轴向厚度（B）的比（A / B），比率（A / B）在不小于 以获得能够跟随内圈和外圈的相对运动的中等刚性。 在第一环形密封唇缘的下端部形成有沟槽，用于在轴承组件的内部和外部之间连通，以防止由于轴承组件内的温度上升而导致轴承组件内的压力增加。