Failure Analysis & Change the Design of Spokes a Head Gear Pulley Used In Coal Mines: Designing a more efficient head gear pulley for coal mines. Journal of Advances and Scholarly Researches in Allied Education, [S. l.], v. 15, n. 11, p. 95–102, 2018. Disponível em: https://ignited.in/index.php/jasrae/article/view/9022.. Acesso em: 8 jun. 2025.