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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 83
7Applications
7.4 Omega belt drive
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7.4 Omega belt drive
The vast majority of positioning systems require linear movements. If a rotating drive is used, the
rotation of the motor has to be converted into a linear movement. The speeds that can be achieved,
and therefore the dynamics of the positioning process and the repeat accuracy, and thus the quality
of the positioning process to a great extent are defined by the mechanics.
Characteristics of an omega belt drive
A motor actuates a belt pulley which in turn actuates a belt or a toothed belt. The mass to be
moved, which usually consists of the drive, a tool, and the payload, is fastened to the toothed
belt.
Toothed belts allow for a higher speed, but a lower positioning accuracy of approx. 0.1 mm. The
positioning path is greater than that for the spindle, but it also is limited.
Belt drives are very often used in applications for material handling , since they offer a high
speed and an accuracy sufficient for this application.
Requirements with regard to a drive system for positioning
High dynamic performance to achieve short positioning times,
High accuracy, according to the application
High degree of reliability
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