The 9066-XYZ-PPN Stainless Steel Crossed-Roller Bearing XYZ Stage offers 0.5 in. travel with Picomotor actuators for XY and a Micrometer actuator for Z. All necessary clamps, brackets, and base plates are included so that the stage can be used right out of the box. Some assembly is required. Crossed-roller bearings provide smooth and accurate positioning for critical optical alignment applications such as fiber-alignment and high-stability positioning in laser systems. To ensure accurate linear travel, the stages use thermally matched hardened-steel, crossed-roller bearings and high-precision reference surfaces. 8-32 and 1/4-20 threaded mounting holes.