Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)10874Research ArticleСALCULATION OF THE ADMISSIBLE TENSILE STRESSES TO APPRECIATE CONTACT STRENGTH OF SPUR GEARS AT THE UNFAVORABLE LOADINGBelousovYu V-Moscow State Technical University named after N. Bauman150620156293212092016Copyright © 2016, Structural Mechanics of Engineering Constructions and Buildings2016In the article, the questions for calculation of the admissible tensile stresses to appreciate contact strength of spur gears at the unfavorable loading are considered. Calculations the ad- missible tensile stresses for normal, improvement wheels, and for wheels after strengthen sur- face work are specified.The results were confronted to the standardsadmissible stresselliptical contactareacriterion of strengthintensive of stressesspur gearsплощадка контактакритерий прочностиинтенсивность на- пряженийпрямозубые и косозубые цилиндрические передачи