The radial and thrust bearings are permanently lubricated. 径向轴承和止推轴承都是终身润滑。
The design principles and the optimum range of the new aerodynamic foil journal bearing with elastic support and self-acting gas bearing cryogenic turboexpander were obtained. 归纳总结了弹性支承箔片动压气体径向轴承的性能特点和最优设计原则，并提出了全动压透平膨胀机的设计准则。
