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This paper presents a software developed to apply the Hertz contact formulation to bearings with rolling elements, estimating the occurrence of surface fatigue failure in this kind of parts. Considering the wide range of designs in the automotive industry using this kind of bearings, a dedicated software, using a simple language, becomes a useful tool to reduce the design time, predicting in a satisfactory manner the failure of the bearing. The software developed shows a high level of accuracy, when compared to data provided by rolling bearing manufacturers.

The productivity of a system can be measured by a combination of parameters as the reliability, mantenability, availability and dependability, which are influenced by the time of functioning and facilities in the repair of the equipment. This work is resulted of the development of a software in the Department of Mechanical Design of the Faculty of Mechanical Engineering of the State University of Campinas. This software carries out, basically, Analyses of Failure, Maintenance and Availability. The Analyses of Availability and Dependability as well as a previous analysis of the Economic Viability have been the subjects treated in this work.