Wheel bearing apparatus
    1.
    发明授权
    Wheel bearing apparatus 有权
    车轮轴承装置

    公开(公告)号:US08905645B2

    公开(公告)日:2014-12-09

    申请号:US13622539

    申请日:2012-09-19

    申请人: NTN Corporation

    摘要: A wheel bearing apparatus has an outer member, an inner member, and double row rolling elements are contained between the outer raceway surfaces. Seals are mounted in openings formed between the outer member and the inner member. A shoulder height H of the inner raceway surface of the inner ring is set with a range of 0.4-0.8 times a diameter “d” of the ball (H/d=0.4-0.8). A shoulder height δ of a smaller diameter portion formed on the outermost circumference of the inner ring is set to a value δ/d≧0.35. A corner, formed by the tapered surface and the inner raceway surface, is rounded to have a circular arc cross-section. A shoulder height H1 of the inner raceway surface from its bottom to the corner is set within a range of 0.40-0.50 times a diameter of the ball (d) (H1/d=0.40-0.50).

    摘要翻译: 车轮轴承装置具有外部构件,内部构件和双列滚动元件容纳在外部滚道表面之间。 密封件安装在形成在外部构件和内部构件之间的开口中。 内圈的内滚道表面的肩高度H设定为球直径“d”的0.4-0.8倍的范围(H / d = 0.4-0.8)。 形成在内圈的最外周上的较小直径部的肩高δ设定为δ/d≥0.5的值。 由锥形表面和内滚道表面形成的角部被圆形以具有圆弧形横截面。 内滚道表面从底部到角部的肩部高度H1设定在球直径(d)(H1 / d = 0.40-0.50)的0.40-0.50倍的范围内。