KISSsoft is a software package to perform sizing calculations for machine elements. The gears are the central element in the transmission. In addition, shafts, bearings, connecting elements, springs, as well as chains/belts can also be calculated. KISSsoft is rounded out by supplementary modules performing such tasks as tolerance calculations and conversions between different hardness systems.
Gears
Sizing calculations are available for all common gear types (cylindrical gears, bevel gears, worm gears, helical gears, hypoid gears, and crown gears). For cylindrical gears, the software also works with planetary sets and gear racks. In addition to a feature for reviewing calculations with respect to standards (ISO, DIN, AGMA, VDI, Klingelnberg), the program also offers a number of different design and optimization functions.
Shafts/Bearings
Sizing calculations for shafts and bearings are integrated, i.e., a built-in graphic shaft editor uses the defined shaft geometry, mounting and loads as a basis for performing sizing calculations for roller and friction bearings, for verifying strength according to DIN or FKM standards, and for calculating bending lines, buckling loads, rpms critical to bending and torsional behavior, tooth profile deformation of shaft-mounted gears, and curves for power, force and mechanical stress.
Joining elements
In addition to screws and bolts, this category also includes shaft-hub connections, feather keys, press fit, splines, etc.
Springs
Relevant DIN methods, including databases on standard springs and materials and, of course, helpful design functions, are available for performing sizing calculations on the five most important types of springs.
Chains/Belts
A number of different calculation methods based on manufacturer data are available for belts; sizing calculations for chains are based on DIN standards.
Miscellaneous
This page provides engineers with modules for performing general calculations (tolerance, hardness, Hertz load)
CAD interfaces
Interfaces to common CAD programs make it easier to create 2D and 3D drawings of gears, which would otherwise be a very time-consuming process.


KISSsoft Changelog Version 03/2017 - Service Pack 5:
KISSsoft - 3D geometry (STEP interface)
- 3D model: Face gear system positioning
The face gear system with axial offset and helix angle was not positioned correctly.
KISSsoft - Bolt calculation
- The dynamic strength value for bolts rolled after heat treatment (ND < 2*10^6) was wrongly calculated
The dynamic strength value σASZG for bolts rolled after heat treatment (SG) (ND < 2*10^6) was wrongly calculated.
(Equation 174, VDI 2230 part 1, 2015)
KISSsoft - Gear calculation
- IMPROVEMENT: Root fatigue data added for Kuraray materials
Root fatigue data was added for the following Kuraray materials:
Genestar N1000A
Genestar N1001A
Genestar N1002A
- Number of teeth of pinion cutter in graphics
The maximum number of teeth of the pinion cutter was limited to that of the corresponding gear in the 2D graphics.
- Applying tip rounding in the normal section
In some gears with high helix angle (crossed helical gears, cylindrical gears), the tip form diameter was not calculated correctly. This is now fixed, additional message is displayed in the report.
KISSsoft - General
- Database: If you set an UNC-path as UDBDIR the idx-files were written in the wrong folder
If you set an UNC-path as UDBDIR in the kiss.ini, the idx-files (index) were written in the wrong folder.
That means for hidden set data entries or own defined data entries the order was wrong in the database.
- Chinese texts in portuguese language version
In some Portuguese KISSsoft surfaces were Chinese texts.
KISSsoft - Root stress FEM calculation
- FEM root stress: Tooth bending of internal gears
The amount of tooth bending of internal gears was not calculated correctly. This affected also the singular tooth stiffness reported from the FEM root stress calculation.
- FEM-Root stress: Gear selection for 3- and 4-gear chains and planetary systems
The information on the gear that was selected to be analyzed was not passed correctly to the calculation, for the cases of 3- and 4-gear chains and planetary systems.
- The consistent flag was not always updated
The calculation was not always set to inconsistent when changing the data of an element in the element editor or changing the position of an element by mouse move.