Purpose. The scientific work is aimed to: 1) analyze the technical condition of freight cars and technological methods used in the repair; 2) identify possible ways to improve resource of freight car bogies; 3) develop a mathematical model to describe the wear geometry of the original surface of bogie center pad at the corresponding life cycle of a freight car. Methodology. https://parisnaturalfoodes.shop/product-category/miswak-toothpaste/