Theoretical research of tooth flank geometries (involute and S-shaped tooth profiles)

Tooth flank profiles

In addition to existing (involute) tooth profiles, the our research team is using the company laboratory to research a new type of tooth profile – the S-shaped tooth profile, which has been shown by theoretical calculations to be superior. The research group conducts tests and experiments using different tooth profiles. We have also developed our own tooth profile generation algorithm, which enables us to generate completely customised tooth profiles, taking into account errors that occur during machining processes.

Theoretical comparison of different tooth profiles

The above results show different tooth profiles we have researched. It is of particular importance that we not only master the involute tooth profile but also research new tooth profiles in cooperation with various research teams. We wish to create an optimal tooth profile which could transfer greater loads at a smaller volume. The figure on the right shows that we have developed a new tooth profile with slower sliding speeds, which constitutes a reduction in the heat generated during operation, which is of key importance – especially for polymer materials, the characteristics of which change significantly with even the slightest change in temperature. Another significant achievement is the reduction of Hertzian contact stress due to the greater radii of curvature and the introduction of the convex-concave contact pattern.