Electric vehicle production innovation on show at EMO - world-first internal gear generating

The biennial EMO exhibition starts next week, in Hanover, with e-mobility and related production technologies one of the show’s themes. Mitsubishi Heavy Industries Machine Tool Co will unveil “the world’s first generating internal gear grinder”.

The company’s ZI20A achieves an efficient and highly accurate process in mass production, using high speed spindles and barrel shaped grinding wheels to generate the required profile, as opposed to profile grinding it. Generating sees continuous grinding of all teeth in a circular motion, whereas profile grinding does so tooth-by-tooth.

The company says that multi-speed hybrid EVs, one-speed EVs and proposed new two-speed transmissions are highly likely to rely on planetary gear systems as their key speed to torque conversion component. It is these planetary gear systems within EVs that rely on smooth internal gears to deliver the desired driving experience.

The company can be found in Hall 26 on Stand A122.