In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.
文章介绍了
型小尺寸钻头，它主要由个偏置的多锥形牙轮和个圆柱形滚轮及两个牙掌组成。
In this paper,a new small-sized bit is introduced.The bit is mainly composed of a biassed polyconic cutter,a cylindric roller and two bit legs.
文章介绍了型小尺寸钻头，它主要由个偏置的多锥形牙轮和个圆柱形滚轮及两个牙掌组成。
With greater axial and radial load rating capacity, good replaceability of components. The shaft can be adjusted through external hexogan then to adjust the axial part dimension.
轴承径向和轴向的承载能
都比较大，各配件可替换性强。轴承通过调节偏心外六角来调整芯轴位置进而达到调整侧滚轮轴向尺寸的目的。
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