LOAD CARRYING CAPACITY OF DYNAMICALLY LOADED JOURNAL BEARING

Abstract

Sliding bearings are the most wide-spread forms of shaft supports having a frequent occurrence in the machine design. Sliding bearings can be used for supporting small shafts of instruments, precise spindles of machine tools, as well as for supporting large shafts of huge machines. You can find sliding bearings in machines and instruments working in extreme conditions, e.g. in vacuum, in space, at very low or at very high temperatures, under heavy mechanical, chemical and heat influence. Naturally, the geometry, load-carrying capacity, life and reliability of a sliding bearing depend on the tribosystem belonging to this bearing, on the structure, the operational variables, and the tribological characteristics of this system. The dynamically loaded, heavy-duty sliding bearings are especially important in the field of mechanical engineering (e.g. in internal combustion engines) because their performance determines the work of the whole machine.