Pham VH, Bui TA, Nguyen TD. Study to Improve the Spindle Bearing Stiffness of Medium External Cylindrical Grinding Machines Based on Numerical Simulation of Hydrostatic Lubrication. old. 2018;(130B):17-23. Accessed August 2, 2025. https://jst.vn/index.php/old/article/view/741