roller bearing bit

基本解释

The investigation points out that one of the most critical factors of the roller bit service life are the service life of bearing system.
经研究发现，影响牙轮钻头使用寿命的最关键因素之一就是轴承系统的寿命。
lib.swpu.edu.cn
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。
lib.swpu.edu.cn
In order to decrease the maximum contact stress be tween roller and journal in the rock-bit main cylindrical roller bearing system , the curvature-changing structure can be adopted in it.
为了降低大圆柱滚子与牙爪轴颈之间的峰值接触应力进而提高牙轮钻头滚动轴承系统的工作性能，可以在大圆柱滚子轴承中实施变曲率结构方案。