Professor V. I. Goldfarb: life activity and contribution to gearing science -- Some exercises with equations of meshing: review of fundamental manuscript -- Challenges of mechanical engineering and in IFToMM: yesterday and tomorrow -- Classification of gear pairs with fixed axes. Review -- Virtual metrology of helical gears reconstructed from point clouds -- Cylindrical arc gears. History, achievements, and problems -- Gear tooth edge deburring and chamfering in 5Axis CnC manufacturing -- Worm-type gear with steel gearwheel -- Parametric synthesis of technological systems for gear finishing -- Gears in Russian university courses on Mechanism and Machine Science -- Geared designs from the past for today -- Theory of adaptive transmission -- Load state of low-speed spiroid gears -- Uncertainties in modeling the lifetime-and-functional properties of gear trains and transmissions and ways to reduce them -- Minimization of contact pressure in the straight bevel gear with saving of its size -- Conic linear helicoids: Part 1. Synthesis and analysis of the basic geometric characteristics -- Conic linear helicoids: Part 2. Applications in the synthesis and design of spatial motions transformers -- Automation of engineering design and configuration of medium complexity products by example of spiroid gearboxes -- Meshing limit line of normal arc-toothed cylindrical worm drive -- Improving the efficiency of gear milling of cylindrical gears with worm cutters when using pulse feed -- Advanced lifetime tests of plastic gears with E- and S-geometry.

This book is the fourth volume in the series devoted to gear engineering and computer-aided design, production, testing and education. It comprises fundamental and applied research contributions by scientists and gear experts from all the world and covers recent developments and historical achievements in various spheres of mechanical engineering related to different kinds of gears, transmissions, and drive systems. It gathers contributions describing the advanced approaches to research, design, testing and production of practically all common and new kinds of gears for a vast number of advanced applications. Special attention is paid to issues of higher education in the field of gears. The book is intended as a tribute to professor Veniamin Goldfarb (1941-2019), one of the world-known leaders in the field of gear research, education and production, who contributed much to the active international cooperation of gear experts and to promotion of MMS science. The introductory chapter of this book relates his research to major developments in the field of mechanisms and machine science and outlines important contributions that he made within the period of 1964-2019.