THE 3D MODELLING OF THE TRANSMISSION OF A GEARBOX WITH FOUR SPEEDS

Gear boxes must provide for the automobile with the best dynamic and economic qualities for the power and revolution of the internal combustion engine. In order to do this, it must have a simple design, light weight, reduced gauge, high reliability and easy maintenance. In this paper, based on the constructive solutions and the geometric elements that were calculated, we obtained a 3D modelling of the elements of the transmission of a gear box and the assembling of these elements in order to obtain the constructive dimensions of the gear box and in order to verify the other composing elements (shafts, bearings, synchronization mechanisms).