Critical speed, n k, is the lowest rotational speed at which the ball-screw shaft is in resonance. In applications with rotating shafts, it limits the screw’s rpm.

The specs are impressive: Up to 10,000rpm rotational speed, with custom versions going higher, and 0.044° (≥13bit) accuracy at 25°C with ±1 LSB output noise (0.4mm air gap). Operation is over 360° of ...