This compact ring drive (CRD) system offers precision-grade bearing and drive mechanism in a sealed housing. Freely programmable, the three-drive design configurations allow the CRD to be optimized for high speed, high torque or both, depending on the application. It has a 250- or 350-mm dial plate bolt circle diameter and a large open center. The combination of roller pinion technology with integrated bearing and motor/gearhead delivers a rigid, smooth system with zero backlash options from the motor through the driven load. It offers indexing precision up to ± 30 ArcSec and repeatability up to ± 5.1 ArcSec.
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