2023
DOI: 10.17973/mmsj.2023_03_2022108
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Comparison of Standard and Nonstandard Gear Root Fillet Considering Root Stress and Manufacturing Possibilities

Abstract: In this paper, root stress, manufacturing possibilities and limitations of standard and nonstandard tooth root fillet of spur gears are examined. Nowadays, standard trochoidal root fillet is used the most as an economical trade-off between tooth strength and manufacturing complexity. A disadvantage of the trochoidal root fillet, especially in spur gears with less than 17 teeth, is undercutting which minimises strength of tooth root, introduces stress concentration, and deteriorates meshing conditions. This stu… Show more

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