MESYS AG in Zurich (Switzerland) is developing software for technical calculations in mechanical engineering. The main focus is the sizing of machine elements like gears, shafts or bearings. In addition to standardized software also custom software is developed. We also support you in design of machine elements especially for gears or we can do ratings according different standards using modern calculation software. Some free online calculations are provided on the website (dimensions over balls for gears, hertzian contact stress, tolerances for fits, ...)