The gear is one of the oldest components in the world. The first and oldest gear apparatuses were found back in ancient times.
Due to the increased strength and precision, machining processes are preferred in the industrial production of gears. Now, hard finishing with a non-defined cutting edge is increasingly used to improve surface structure. This method offers numerous advantages, especially in relation to geometry and surface quality, since the finished transmission’s power transfer is significantly increased. This increase in quality increases efficiency at the same time, which is associated with a reduced energy loss.