Radial Bearings
    2.
    发明授权
    Radial Bearings 失效
    径向轴承

    公开(公告)号:US3879094A

    公开(公告)日:1975-04-22

    申请号:US38858673

    申请日:1973-08-15

    IPC分类号: E21B4/00 F16C33/04 E21C13/04

    摘要: This invention relates to hard metal radial bearings particularly suitable in connection with thrust bearings which are lubricated by erosive fluids passing through the radial bearings as are employed in down-hole drilling motors.

    摘要翻译: 本发明涉及特别适用于推力轴承的硬质金属径向轴承,该推力轴承是通过径向轴承的侵蚀流体润滑的,如在井下钻机中所采用的那样。