Calculation of splined shaft connections extended

GWJ Technology GmbH presents an expanded version of the calculation module for splined shaft connections as part of the web-based software solution eAssistant.

GWJ offers a comprehensive calculation module for splined shaft connections within its market-leading web-based calculation solution eAssistant. The eAssistant - the engineering assistant - has been used successfully worldwide for 20 years. The module for splined shafts is suitable for new design as well as recalculation or reengineering and offers a simple and quick calculation of both the main geometries and the exact tooth shape, including test dimensions and tolerances as well as strength of splined shaft connections.

In addition to the calculation of splines according to DIN 5480, connections according to ISO 4156, ANSI B92.1 (inch version), ANSI B92.2 (metric versions) are also supported. Furthermore, the calculation of splined shaft profiles according to DIN 5482 is also possible. Although this standard can no longer be used for new designs, it is still used or in demand for spare parts due to its widespread use.

The same also applies to the newly implemented French standard NF E 22-141 from 1955. Here, the Primary Series was included in the eAssistant as the recommended preferred series of NF E 22-141 for flank-centered splined shaft connections with a flat tooth base. In addition to the selection of spline profiles, the corresponding tool reference profiles are also available. Here you can choose from the reference profile for hobbing for the tooth shafts and the tool reference profiles for broaching and shaping for the tooth hubs.

The gear qualities between 5 and 12 as well as dimension series from NF E 22-141 can also be selected for calculating the test dimensions, such as tooth width dimension over the number of measuring teeth or diametrical roller or ball dimension. The dimensions available are c10 for clearance fits, f10 for transition fits, js10 for press fits and x10 for strong press fits.

Using the eAssistant integration modules, the toothed shafts and toothed hubs can be created as 3D models directly in the respective CAD system and the table with the manufacturing data can be placed on the drawing. As an alternative to the CAD plug-ins, the output of the tooth shape in 2D DXF format or 3D STEP/IGES is also available. The precisely calculated tooth shape for the correspondingly selected tolerance position can also be used for laser cutting or wire erosion, for example.