Training Manual . - Tver, TSTU, 2009. - 112 s. Designed to prepare materials for laboratory, practical training, course design and development of methods of automation of design operations using information technologies when studying the section "Mechanical couplings" . Classification of the couplings of the mechanical principle of action, Specifications and application features of the most common types, Examples of the organization of database materials, necessary for automation of operations of selection of serial and non-typical discussed nodes and elements of their design. Descriptions of the structures of the couplings, the principles of their operation are illustrated by three-dimensional models that allow you to study the node and its individual parts, the order of assembly and disassembly much faster and qualitatively. Dialogues are presented that allow to fully automate the process of selection of serial couplings. A description of the method of constructing three-dimensional models. is included Designed for students of mechanical specialties (TMS, SDMO, MAPP, MAHP, TMO, STM), studying the disciplines "Machine details and basics of design", "Machine details", "Technical mechanics" and performing a course project, course work and RGR in these disciplines . It can be useful in the implementation of diploma projects, including the use of information technology tools such as three-dimensional (3D) modeling, the organization of materials for databases and interactive dialogues on the selection of serial equipment.