Tapered roller bearing and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing
    11.
    发明申请
    Tapered roller bearing and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing 有权
    圆锥滚子轴承和汽车小齿轮轴支撑装置采用相同的圆锥滚子轴承

    公开(公告)号:US20070098317A1

    公开(公告)日:2007-05-03

    申请号:US11504760

    申请日:2006-08-16

    IPC分类号: F16C33/58

    摘要: A tapered roller bearing according to the invention is such that when an arithmetical mean roughness as a surface roughness of a large end face of a tapered roller is σ1 and an arithmetical mean roughness as a surface roughness of a large rib surface of an inner ring is σ2, σ1 is 0.04 μm or larger, and a composite roughness that is expressed by a square root of a sum of a squared value of σ1 and a squared value of σ2 is 0.17 μm or smaller. Raceway surfaces of an outer ring and the inner ring and a rolling contact surface of the tapered roller are crowned, and a total crowning amount is set to 50 μm or larger, an outer ring crowning rate is set to 40% or larger, and a roller crowning rate is set to 20% or smaller.

    摘要翻译: 根据本发明的圆锥滚子轴承使得当作为圆锥滚子的大端面的表面粗糙度的算术平均粗糙度为σ1时,作为内圈的大肋表面的表面粗糙度的算术平均粗糙度为 sigma2,σ1为0.04μm以上,由σ1的平方值和σ2的平方值的和的平方根表示的复合粗糙度为0.17μm以下。 将外圈和内圈的滚道表面以及圆锥滚子的滚动接触面加冠,总隆起量设定为50um以上,外圈加冠率设定为40%以上, 辊加冠率设定为20%以下。

    Liquid lubricating tapered roller bearing device
    12.
    发明授权
    Liquid lubricating tapered roller bearing device 有权
    液体润滑圆锥滚子轴承装置

    公开(公告)号:US08876397B2

    公开(公告)日:2014-11-04

    申请号:US11598740

    申请日:2006-11-14

    摘要: A liquid lubricating tapered roller bearing device, includes: an outer ring; an inner ring including an outer end surface at a smaller diameter side; tapered rollers; and a cage located further inside in an axial direction than the outer end surface of the inner ring and including an end portion at a smaller diameter side, the end portion defining an outer end surface and an inner periphery. Inequalities X2/B≧0.010 and 0.009≦X1/D≦0.043 are satisfied where B represents a width in the axial direction of the inner ring; D represents a bore diameter of the inner ring; X2 represents a distance in the axial direction from the outer end surface of the inner ring to the outer end surface of the case; and X1 represents a dimension of a clearance in a diameter direction between the inner periphery of the cage and the inner ring.

    摘要翻译: 一种液体润滑圆锥滚子轴承装置,包括:外圈; 内圈,其包括在较小直径侧的外端表面; 圆锥滚子; 以及位于轴向方向上比内圈的外端面更靠内侧的保持架,并且包括在较小直径侧的端部,所述端部限定外端面和内周。 不等式X2 /B≥0.010和0.009≦̸ X1 / D≦̸ 0.043满足其中B表示内圈的轴向宽度; D表示内圈的孔径; X2表示从内圈的外端面到壳体的外端面的轴向方向的距离, X1表示保持架的内周与内圈之间的直径方向的间隙的尺寸。

    Tapered roller bearing and transmission bearing apparatus
    18.
    发明申请
    Tapered roller bearing and transmission bearing apparatus 审中-公开
    圆锥滚子轴承和传动轴承装置

    公开(公告)号:US20070041678A1

    公开(公告)日:2007-02-22

    申请号:US11504769

    申请日:2006-08-16

    IPC分类号: F16C33/58

    摘要: A tapered roller bearing includes an outer ring, an inner ring including a large rib surface formed into a concavely curved surfaced recessed in an axial direction, and a plurality of tapered rollers. R1/R2 is in the range of 0.07 to 0.8 where R1 represents radius of curvature of a large end face of the tapered roller and R2 represents a radius of curvature of the concavely curved surface. An arithmetical mean roughness the large end face is in the range of 0.01 to 0.03 μm. A total crowning amount is 50 μm or larger, an outer ring crowning rate, which is a rate of the outer ring crowning amount on the total crowning amount, is 40% or larger, and a roller crowning rate, which is a rate of two times of the roller crowning amount on the total crowning amount is 20% or smaller.

    摘要翻译: 圆锥滚子轴承包括外圈,内圈,其包括形成为沿轴向凹陷的凹曲面的大肋面,以及多个圆锥滚子。 R 1 / R 2在0.07〜0.8的范围内,其中R 1表示圆锥滚子的大端面的曲率半径,R 2表示凹曲面的曲率半径。 大端面的算术平均粗糙度在0.01〜0.03μm的范围内。 总冠量为50um以上,作为外冠加冠量的总加冠量的外圈加冠率为40%以上,辊加冠率为2倍 总冠量的滚珠加工量的次数为20%以下。