A Review of Spur Gear Fault Diagnosis: Monitoring Methods, Predictive Models, and Industrial Challenges. NTU Journal of Engineering and Technology, [S. l.], v. 4, n. 3, 2025. DOI: 10.56286/er1kna15. Disponível em: https://journals.ntu.edu.iq/index.php/NTU-JET/article/view/1398.. Acesso em: 5 dec. 2025.