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作用在伞式或悬吊式水轮发电机组推力轴承的轴向推力通常是相当大的。例如一台15万千瓦的混流式机组,满载运行时轴向推力达1600吨。因此,为了降低轴瓦摩擦产生的温升和功耗,运行中必须保证推力轴承得到良好的润滑和可靠的散热。水轮发电机的推力瓦都是用锡基轴承合金浇铸瓦衬的。品号Chsnsbll—6锡基轴承合金(旧称Ь33巴氏合金)优先用于重载轴承。它的特点是由软基体及均匀分布在软基体内的硬分子组成。软基体是锑和铜在锡中
Axial thrust acting on thrust bearings for umbrella or pendant hydrogenerators is usually quite large. For example, a 150,000-kilowatt Francis turbine with axial thrust of 1,600 tons at full capacity. Therefore, in order to reduce the temperature rise and power loss caused by the bearing friction, it is necessary to ensure that the thrust bearing has good lubrication and reliable heat dissipation during operation. Hydro-generator thrust pads are cast with tin-based bearing alloy lining. Chsnsbll-6 tin-based bearing alloy (formerly Ь33 Babbitt alloy) priority for heavy-duty bearings. Its characteristics are composed of soft matrix and hard molecules evenly distributed in the soft matrix. Soft substrates are antimony and copper in tin