A Final event has been organised in person on 09. April 2025 in Aachen, in order to wrap-up the work and present the findings to a wider audience. For this event, consortium partners presented the key results from the TOPGEAR project.

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In addition to all the solutions developed, the following two main conclusions have been achieved in the TOPGEAR project:

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• The gear failure modes at very high speeds differ from low-medium speeds and might lead to unexpected early failures. This is particularly important because transmission technologies for battery electric vehicles are going beyond the evolution of gear testing capabilities, and it is not clear the causes behind that modification of gear failure modes.

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• There are valid technical and economic alternatives to traditional carburizing processes for high-speed gears. With an adequate selection of the steel grade, an optimization of the manufacturing processes and the surface hardening treatments and a holistic approach, the performance and the costs might be similar or even better. The choice between the different alternatives should be taken for each particular geometry and requirements, but the alternative to carburizing exists and in certain cases might be beneficial.