Load distribution in deep groove ball bearing has been studied in this work. A deep groove ball bearing model is proposed basing on geometry specific measurement. Two approaches (finite element method and semi-analytical) have been used to determine the distribution of an external radial force applied. These two approaches have been compared in terms of computation time and precision. At the second point, a deformable complex bearing housing has been integrated in the FEM ball bearing model to assess the influence of its deformation on load distribution.