Shafts over 1.5 m long can be classified as long. Those of them that have a length-to-diameter ratio of more than 10 can be classified as non-rigid. The most characteristic shafts of high precision are the rods of hydraulic cylinders, boreholes of boring machines, cylindrical guides, shafts and rolling pins of various mechanisms, sliding and rolling screws, etc. Processing of such products requires the use of additional devices in machines to overcome the effects of deformations under the influence of cutting forces and gravity, as well as the risk of self-oscillation.

precision, control, processing, detail, measurement, surface, orientation, machine tool, accuracy, direction, bench, scheme

| ISSUE 12 | 2021 ISSN: 2181-1385 Scientific Journal Impact Factor (SJIF) 2021: 5.723 Directory Indexing of International Research Journals-CiteFactor 2020-21: 0.89 DOI: 10.24412/2181-1385-2021-12-1384-1390 Google Scholar Scientific Library of Uzbekistan Academic Research, Uzbekistan 1389 www.ares.uz

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