Screw-cutting lathes and lathes. Basic dimensions. Standards of accuracy and regidity

This technical document establishes essential specifications concerning the fundamental dimensions, precision levels, and rigidity characteristics of various types of lathes and screw machines. It defines the criteria and tolerances necessary for the design and manufacturing of these machine tools to ensure consistent performance and interchangeability of components. The standard outlines the geometric accuracy requirements for critical machine elements, including guideways, spindles, and feeds. It provides reference values for dimensional series and permissible deviations under specific operating conditions. By adhering to these defined parameters, manufacturers can produce equipment that meets established engineering benchmarks. The guidelines facilitate quality control processes during production and acceptance testing phases. This framework supports the uniformity of machine tool construction across different industrial applications. It serves as a reference for evaluating the mechanical integrity and functional capabilities of traditional turning equipment. The content focuses exclusively on technical parameters without addressing administrative or procedural aspects of implementation.