一、滚动轴承的有关概念 (1)公称接触角滚动体和套圈接触处的法线n-n与轴承径向平面(垂直于轴承轴心线的平面)的夹角α,称为轴承的公称接触角。其值的大小反映了轴承承受轴向负荷的能力。α角越大,轴承承受轴向负荷的能力愈大。 First, the concept of rolling bearings (1) Nominal contact angle Rolling body and the contact ring at the nn and the bearing radial plane (perpendicular to the bearing axis of the plane) of the angle α, known as the bearing nominal contact angle . The magnitude of the value reflects the ability of the bearing to withstand axial loads. The larger the α angle, the greater the ability of the bearing to withstand axial loads.