【摘要】 井下动力钻具用多联推力角接触球轴承是一种特殊轴承 ,一般采用多列串联式结构 ,用特殊材料制造 ,具有承载能力大、耐冲击、结构简单、拆装方便、能承受双向载荷等特点。简要介绍了它的结构特点和技术要求 ,分析了它的负载情况和失效形式。更多还原

【Abstract】 Multirow arrangment angular contract thrust bearing for underwell power drilling rig is one kind special bearing.This kind of bearing generally uses multirow tandem structure,is made of special material and is characterized by large loading capacity,anti-impact,simple structure,easy mounting and dismounting,and carrying double direction loads.Its design feature and technical requirement are introduced and its loading condition and failure mode are analyzed.更多还原