maxon motor's new Koaxdrive KD 32 motor gearbox utilises both a worm-formed motor pinion and planetary gearing to deliver formidable torque in almost total silence – even with high input loads. The innovation is found in the first gear stage, where the majority of noise is usually produced; three offset wheels, driven by the helical pinion, interlock with a straight-cut internal gear. maxon’s new, patent-protected use of a sliding mechanism takes axial load off the motor shaft, dramatically reducing contact sound and allowing the gearhead to operate noislessly even at speeds of 8000rpm.
The planetary gears then provide high reduction rates in a single gearbox, with a number of ratio options available.
Not only does the singular nature of the gearing mechanism mean that noise levels are minimal, but the Koaxdrive also has a high output for its small size – up to 6.5 Nm of torque with an outer diameter of just 32 mm.