Space Station Experiment Module

Allied Motion engineered a large custom 560 mm (22 in.) diameter torque motor with encoder for the International Space Station. The motor was designed to power a 2.5 m (8.2 ft) diameter centrifuge rotor capable of providing artificial gravity levels ranging from 0.001 to 2 g. The intended application of the 1875 kg (2 ton) centrifuge was experimentation in microgravity using such diverse objects as small animals and semiconductor crystals.