DDR-90 Rotary - Direct drive servo motor provides quick response - Miniature size for small form factor photonics applications - High resolution feedback to 0.43 arc-seconds GR-XA Crossed Roller Stage - Worm gear drive with self-aligning flexure in 45:1, 90:1, or 180:1 ratios - Crossed roller bearings for high load capacity and rigidity - Hard-coat anodized top plate with solid, through hole or custom mounting surface - Motor mounting for NEMA23 frame servo or stepper motor - Magnetic reed switch home sensor included - Optimize your design with a variety of gear ratio, encoder & multiplier options - Repeatability to ± 0.2 arc-minute Ideal for: - Rotary Indexing Applications - Automated Assembly