Analysis of elastohydrodynamic lubrication of ball screw under the influence of load

The lubricating oil film is crucial for the efficient operation of ball screws, as it significantly influences the adhesion and fatigue failure of the contact surfaces. This paper presents a comprehensive study on isothermal elliptical contact elastohydrodynamic lubrication (EHL) by developing a detailed model that examines the behavior of the oil film under various initial load conditions. Through rigorous analysis, we investigate the oil film pressure distribution and thickness variations, which are essential for understanding the lubrication performance in ball screw applications. Our findings reveal the nuanced relationship between load conditions and lubrication characteristics, providing valuable insights that can enhance the reliability and longevity of ball screw systems in engineering applications. This study aims to the broader realm of tribology through addressing critical lubrication challenges.