With the maintenance-free Galaxie®, WITTENSTEIN has reenvisioned the concept of mechanical gearing. The result: a fundamentally new type of backlash-free gear unit. The maintenance-free, unique kinematics maintains almost complete surface contact of every tooth during power transmission. As a result, the backlash-free Galaxie® drive systems and gearboxes with hollow shafts achieve previously unimaginable performance data. These include extreme torque density, torsional rigidity, low synchronization error, high positioning accuracy and absolute freedom from backlash. Compared to involute or cycloid gears, the Galaxie technology enables maintenance-free backlash over its entire service life.