An analysis of the advantages and disadvantages of the most common types of gears in practice, technical requirements and technological capabilities in their design and manufacture at the present stage of development shows that developments in the field of creating gears with unconventional tooth profiles are relevant. The technical solution proposed in the article refers to cylindrical gears of external and internal gearing, the shape of the teeth of the wheels of which is formed as the envelope of the original contour of the rack, and the number of teeth are assigned depending on the purpose of the mechanism, the required gear ratio and the diametric dimensions. Such mechanisms are used in various branches of mechanical engineering in the form of gear wheels of gearboxes, winches, planetary and wave gears, and also as working bodies of pumps, hydraulic motors, compressors and internal combustion engines with straight and helical teeth.

How to Cite
BALDENKO, D.F.. Wheel Tooth Profiles of Hydraulic Machines and Mechanical Gears: Traditions and Innovations. Global Journal of Research In Engineering, [S.l.], july 2020. ISSN 2249-4596. Available at: <https://engineeringresearch.org/index.php/GJRE/article/view/2033>. Date accessed: 04 aug. 2020.