GrindTec
Workhead direct drive for grinding
At Grindtec, Schüssler Technik will be presenting a drive system that has been specially developed for grinding technology. A cylindrical roller bearing from our own production is combined with a synchronous direct drive. The result: Installed in the workpiece headstock of a CNC grinding machine, the machine achieves concentricity and axial run-out accuracies of 50 to 100 nm. According to the manufacturer, even circular and cylindrical deviations of just 0.1 µm are achieved with process stability. The core components of the precision drive are cylindrical rollers, which, according to the manufacturer, are manufactured and selected in a previously unattained accuracy class of 10 to 30 nm diameter difference. The shape and position tolerance of the cylindrical rollers is therefore in the region of a tenth compared to the current state of the art in roller production.
The cylindrical rollers also have a significantly higher load-bearing capacity. The integration of the existing roller running surfaces of the shaft and bearing washer (housing) without joints increases the overall rigidity by a factor of 4 compared to single bearings and reduces the required installation space by a factor of 5 compared to standard built-in roller bearings of the same size. sw
GrindTec, Hall 3, Stand 3081
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