The AY110-100V vertical rotation stage measures 3.397 in (100 mm) in diameter and has a 1.181-in- (30-mm-) diameter clear aperture to allow for cabling, vacuum lines, clamping and laser alignment. A precision pattern of threaded mounting is provided to add custom tooling. Rated for a side load up to 44 lb (20 kg), this stable vertical rotation stage features a 180:1 precision worm drive and deep-grove ball bearings for a resolution of ±0.001° when microstepping (10 micro steps per step). The stage also features 0.005° repeatability, 0.001° positional accuracy and 0.005° backlash and is capable of continuous rotation.