the hut, contact pair, thermal facture, a critical thermal condition, critical parameters of the hub.

The criterion of the beginning of thermal fracture of materials of details of a contact pairs is formulated during work. Calculation of a critical thermal state of the bushning of contact pair is lead. The problem about definition of temperature stresses of the bushning of contact pair when on a contact surface of the bush the maximum permissible temperature for a material of the bush is achieved is solved. The way of calculation of critical parameters of the hut of contact pair is offered. Recommendations for a design stage of details contact pairs are given.

Axundova, Parvana Elman qizi Cand. Phys. and Math. Sci., Doktorant, Institute of Mathematics and Mechanics NAN of Azerbaijan, Baku