This paper analysis the tension and deformation state of the safety belt double belt guide. We tried to determine the most suitable material to be used and the stability and dimensions in the regions that concentrate the stresses. The analysis of the stress state is realized by using the finite element method (FEM) in linear states. International traffic safety law regulates the fracture force for the safety belt double belt guide. Solicitation conditions similar to the ordinary safety belt functioning regime for the double belt guide are being statistically analyzed, by using a set of 10 double belt guides randomly selected out of 100 pieces lots. The breaking model is applied on every studied piece, special attention being taken to the stress concentration zone both experimentally and with the finite element method. The obtained results were used to enhance the shape design and the manufacturing technology.
