Bearingless encoders

Bearingless encoders. In bearingless encoders the rotor is completely free to move relative to the stator – if bearings are involved they are typically already present in the host system. The eradication of bearings from the encoder results in lower start-up turning torques, no service or maintenance requirements, greater reliability due to reduction in parts count, eradication of seals and baffles, direct coupling of rotor and stator to host equipment, no heat generation from friction at high speeds.