Applications with particularly high precision - whether in the engineering of industrial plants, robotics, construction of machine tools or medical technology - require solid, precise gears designed for long life. For such tasks you can use two types of gearbox : planetary and cycloid. In the further part, we will take a closer look at the properties of both technologies.
Construction cycloid gear
Construction cycloid gear Nabtesco can be divided into two parts. In the first rotation from the engine shaft is transmitted by a precise gear ratio. At this point, the rotational speed is reduced depending on the number of teeth of the input and gears transferring the drive to the second degree of gear. These gears (two or three depending on the type of gear) are further connected directly with the eccentric rollers that drive gears with teeth with cyclooid outline.
The transfer of the drive between eccentrics and cycloid gears is needles. Cycloid ranges, whose rotary motion is forced by eccentric rollers, rotate with one tooth on one eccentric rotation, which results in another reduction of rotation. Thanks to the opposite placement of cycloid gears, the contact surface between them and the rollers bearing them relative to the housing is almost all over the entire perimeter. This allows you to obtain high stiffness of the system and strength of mechanical strokes (e.g. rapid retaining elements with significant inertia).