| 摘要 |
<p>A thrust bearing having improved rolling pins and/or leveling plates that reduce wear and/or the size of the thrust bearing. In one aspect, the rolling pins have a substantially smaller radius of curvature than the surfaces of the lower leveling plates in which they nest. In another aspect, a leveling plate is used that has a substantially planar surface that contacts the rolling pins. In still another aspect, the rolling pins have a transverse cross-section having non-uniform radius of curvature. In yet another embodiment, the rolling pins have a transverse cross-section having a minor axis and a major axis.</p> |
