title: Ð¡ÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸ Ð²ÑÐ±Ð¾Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° ÑÑÐ¶ÐµÐ»Ð¾Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð½ÑÑ Ð³Ð¸Ð´ÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾Ð´ÑÐ¸Ð¿Ð½Ð¸ÐºÐ¾Ð² ÑÐºÐ¾Ð»ÑÐ¶ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Comparative analysis and material selection of heavy-loaded hydrodynamic plain bearings
Creators: name: ÐÐ¸ÑÑÑÐ½Ð¾Ð², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ¾Ð´ÑÐ¸Ð¿Ð½Ð¸ÐºÐ¸ ÑÐºÐ¾Ð»ÑÐ¶ÐµÐ½Ð¸Ñ
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description: The object of the research is the materials for sliding support bearings for pumps and electric motors of main pump units (MPU). The analysis of scientific and technical literature on the investigated subject is carried out, on the basis of which the urgency of the work is substantiated and the comparative analysis is carried out, and the material of heavy-duty hydrodynamic plain bearings is selected. In particular, antifriction coatings based on metal alloys in the form of babbitts and bronzes are used for Russian sliding bearings, which have high tribotechnical characteristics in a narrow range of properties, which limits their use in most units of machines and mechanisms, operated under significant dynamic, kinematic and thermal loads. However, in recent years in Russia technologies for obtaining thin antifriction coatings for bearing units of machines and mechanisms on the basis of metal-polymer compositions, using highly concentrated energy sources are realized. The physical-mechanical and operational properties of the created coatings, according to the latest data, are significantly superior to the standard coatings.It is established, that resource and operating time of the bearing is limited only by wear during start-up and shutdown or simply by the amount of starts, i.e. operating time before failure and average resource before overhaul depend on the number of starts. The number of starts and stops determined by this criterion, which will pass until the wear limit is more than 2 times higher than required.