Agilis piezo motors are directly coupled to the moving carriages with no intermediate screw or gear. Precision motion is achieved by a proprietary ball bearings. When idle, the holding force of the motor locks the position for true set and forget long term stability. Compared to alternative screw driven designs, Agilis rotation stages do not compromise adjustment range or lifetime and they have no backlash. In contrast to ultrasonic motors, the Agilis non-resonant motor makes small incremental adjustments more predictable with an impressive minimum incremental motion capability, ideal for ultra-sensitive alignments.