... 滚柱轴承锥形牙轮钻头 cone type roller bearing rock bit 滚柱轴承钻头 roller bearing bit 滚子，卷轴，滚轴 roller ...
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sealed roller bearing bit 密封滚动轴承钻头
The failure analysis of the high speed roller bit bearing.
高速牙轮钻头轴承的失效分析。
The failure mechanism of journal bearing of roller cone bit is analyzed, the failure type is adhesive wear, and main factors affecting the adhesive wear are analyzed.
分析了牙轮钻头滑动轴承失效的机理，论证了牙轮钻头滑动轴承失效形式主要为粘着磨损，分析了影响轴承粘着磨损失效的主要因素。
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