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Computer Aided Design (CAD) and Computer Aided Engineering (CAE) are the most important technology tools that today designers are using in development of product (design and in process of optimization). Thus, this study is carried out to present the importance of CAD/CAE system on process of design and process of optimization of spur gear. The paper presents the usage of CAD system for modeling parts and CAE software for analysis of stress-strain of spur gear and the results of calculation of pair spur-gears that it used in the gearbox transmission of the bucket wheel excavator located in “Bardhi i Madh Fushë Kosovë”, and after that will be optimized the shape of the spur gear with usage of ANSYS software. Consequently, the aim of this research is to calculate stress-strain structure of parts (gears) and reduce weigh of the gears.

The Importance of CAD/CAE systems in development of Product Design and Process of Optimization