Renk

Johann Julius Renk had the idea of a machine that could produce gears completely mechanically.

Renk was awarded the patent DRP 8000/79 in 1879 for the production of the first involute gearing.

Renk AG was involved in a bribery affair in 2007, leading to suspended sentences for board members.

Renk signed a contract in 1993 to supply transmissions for 436 Leclerc tanks, generating approximately €100 million.

As of 2023, Renk generates about 70% of its turnover with tanks and marine gear units.