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在多节涡轮钻具中,除装于下部支承节的主轴向轴承外,还采用辅助轴向轴承。这些辅助轴承是多排滚珠轴承,装于A6和ТСШ4型涡轮钻具的涡轮节中,也装于TC2Ш型涡轮钻具的中间支承节中。
In multi-section turbine drills, auxiliary axial bearings are used in addition to the main axial bearings mounted on the lower support section. These auxiliary bearings are multi-row ball bearings housed in the turbine sections of the A6 and ТСШ4 turbine tools and also in the intermediate support sections of the TC2Ш turbine components.