Comparative Analysis of the Contact Deformation of the Spherical Sliding Layer of the Bearing with and without Taking into Account the Grooves with Lubricant

In this paper, the analysis of the contact deformation of elements of spherical bearing through anti-friction polymeric layer made of modified fluoroplastic with and without taking into account the grooves with lubricant is carried out. The effect of grooves with lubricant on contact zone parameters is considered. Comparison of the results of the spherical bearing draft obtained within the framework of numerical and full-scale experiments with a constant coefficient of friction of 0.04 is made: at a nominal vertical load of 1000 kN, the difference between the results of numerical and full-scale experiments is minimal and is similar to 7.13% for the model taking into account the grooves with lubricant. The analysis of frictional properties of modified fluoroplastic under the conditions of contact interaction with and without taking into account the lubrication of the mating surfaces is performed. Approximating functions have been selected to describe the dependence of the friction coefficient on the pressure acting on the contact section. The effect of the friction coefficient obtained experimentally on the contact deformation of the sliding layer is considered. Several qualitative and quantitative regularities have been established.