The data of applied research aimed at new laser surface modification technologies development are presented in this paper. Both polymer and metal surface coatings formed on steel parts under laser radiation have been tested and their influence on the friction conditions, reliability, bearing capacity and durability of the drive item have been investigated. The relationships between laser treatment modes, coatings composition and various exploitation parameters have been obtained. It is shown that the worked out technologies, to be used in production, provide power transmissions bearings with increased reliability and operating properties.

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