Abstract: | In the conditions of strongly competition, in the present it is looking for new solutions to obtain bearings with prices as far low as possible, with delivery schedule as far short, but, in the same time, with running properties as far suitable, dimensional stability in running, low level of noise, high reliability, stable properties in running, good behavior in the most different conditions of environment and running, but all of this is not always possible to be obtained by classical heat treatments. The non-conventional heat treatments are modern and efficient processes, which, if are correctly applied in the chain of technological operations, determine considerable improvements of the properties of bearings. In this paper are presented the results of experimental researches on the abrasive wear out of bearings steels which are cryogenically heat treated and in ultrasonic activated liquids. |
