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[References: 7 tit.]

This paper discusses the types of loads experienced by bearings in the boxes of railway cars. The authors give examples of using a ball bearing as an axial stop to reduce the load on the frame of railway cars. The paper reviews existing solutions, considers the components of a single row of radial bearings and a roller bearing without separators, and highlights their advantages and disadvantages. The purpose of this study is to consider improving angular contact ball bearings with toothed rings to increase its reliability. The operating principle and the scope of the application of these bearings were investigated.