RATIONALE FOR THE TECHNOLOGICAL PROCESS OF RESTORATION OF WORKING SURFACES OF JOININGS OF ROLLING BEARINGS

The article examines the processes that occur during the operation of the mating surfaces of machine parts, and analyzes the factors that influence their operational characteristics. Zokrema, the specificity of the vicorization of polymer materials in the process of updating the seating shafts and housings under the forging rollers was observed. The completeness of the separation of technological processes aimed at increasing the wear resistance of the working surfaces of these parts has been demonstrated. Theoretical dimensions are presented that allow one to determine the basic parameters of the repeated bending of shafts, housings and rollers by rolling ways to compensate for changes in geometric dimensions of the surface after operation. It is indicated that the durability of the work depends to a large extent on ensuring the inviolability of the roller rings, which includes their checking. For this purpose, the necessary tensions at the landings, plastic deformation of micro-irregularities on the surface of the parts have been ensured, and methods of wear compensation have been introduced. The advantages of the use of polymer materials, which are characterized by high physical and mechanical strength, in technological processes of folding and updating parts have been analyzed. The use of polymer compositions makes it possible to reduce the wear on the surface of parts and their surfaces, such as reducing rubbing, as well as increasing the development of fretting corrosion. Protective, polymer coatings perform the function of microshock absorbers, reducing stress in contact areas and increasing the durability of working surfaces. The problem of choosing the optimal type of polymer materials and the maximum permissible gap and tension in the couplings, which will ensure the unbreakability of the rings and durability before they are tested, is carefully examined. The robot has identified the main directions of further investigations, regardless of the importance of the power of polymer materials, which will ensure the greatest durability of the device during different types of use. The research results indicate the promise of high-quality polymer materials for increasing the wear resistance of working surfaces and extending the service life of robotic machines and equipment.