geometric design and strength check of bevel gear with with straight, helical and curved toothing. application is developed in ms excel, is multi-language and supports imperial and metric units and solves the following main tasks: - calculation of straight, helical and curved toothing. - automatic design of a transmission with the minimum number of input requirements. - design for entered coefficients of safety (static, dynamic). - calculation of complete geometric parameters (including corrected toothing). - calculation of strength parameters, safety check. - supplementary calculations (calculation of parameters of the existing gear, temperature rise, design of shafts) - optimization of parameters (dimensions, weight, volume, transmission ratio) - support of 2d cad (autocad, autocad lt, intellicad, ashlar graphite, turbocad) and 3d cad in full calculation package (autodesk inventor, solidworks, solidedge, pro/e). the calculations use procedures, algorithms and data from standards ansi, iso, din, bs and specialized literature. used standards: din 3971, din 3991 kegelradern 1-4, iso 6336 1-3, din 3965 toleranzen für kegelradverzahnungen 1-4, iso 1328, din 3990, ansi b6.1-1968, agma 2001-c95, agma 908-b89/95, agma 2003-a86/88, agma 2005-b88 and others.this module is a part of mitcalc - mechanical and technical calculation package for gear, belt and chain drives, bearings, springs, beam, shaft, bolt connection, shaft connection, tolerances and many others