这是起重机配件双列圆锥滚子轴承。
This is a crane accessories double row tapered roller bearings.
双列圆锥滚子轴承在承受径向负荷的同时也可承受双向轴向负荷。
Double row tapered roller bearings can accommodate simultaneously radial load and also axial load in double directions.
机床用圆锥滚子轴承可同时承受径向和轴向载荷，双列圆锥滚子轴承可承受双向轴向载荷。
Tapered roller bearings for machine tools can be both radial and axial loads, double row tapered roller bearings can withstand two-way axial load.
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