短语词组短语self -aligning babbitted bearing bushing 自调心镶巴氏合金轴承衬套plain self -aligning bearing 自动调心滑动轴承adjustable self -aligning bearing 可调节的自动调整式轴承single -row self-aligning bearing 单列向心球面球轴承 返回 self-aligning bearing