the calculation is designed for geometrical design and complex strength check of shafts. application is developed in ms excel, is multi-language and supports imperial and metric units. is based on agma, iso and din standards and support many 2d and 3d cad systems (autocad, autocad lt, intellicad, ashlar graphite, turbocad, autodesk inventor, solidworks, solidedge, pro/e)

geometrical design and strength check of a prestressed bolt connection, loaded by static or cyclic loading resp., acting both in the axis of the bolt and in the plane of the connected parts. application is developed in ms excel, is multi-language and supports imperial and metric units. the application includes a table of commonly used materials according to iso, sae, din, bs, af astm and aisi. calculation support many 2d cad systems.

geometric designs and strength checks of shaped connections of shafts with hubs (parallel side keys, woodruff's keys, straight-sided splines, involute splines). application is developed in ms excel, is multi-language and supports imperial and metric units. is based on iso, sae, din, bs and jis standards and support many 2d cad systems (autocad, autocad lt, intellicad, ashlar graphite, turbocad).

the calculation is intended for the purposes of geometric and strength designs of spiral cylindrical torsion springs made of wires and rods in circular sections, loaded with a static or cyclic loading. application is developed in ms excel, is multi-language and supports imperial and metric units. is based on ansi, iso and din standards and support many 2d and 3d cad systems.