The rotary encoders with integral bearing from HEIDENHAIN such as the ROC, ROQ, ROD, RIC is a sealed device that offers a protection of IP 64 to IP 67, depending on the version. It features a coupled rotor to
the appropriate shaft through a different coupling that remunerates axial motion and curve between the encoder and the measured shaft. It is a robust and compact device designed for a possible explosive surroundings conforming to Directive 94/9/EG, (ATEX). These rotary encoders conform with the Equipment Group II, passed the qualifications of Category 2, and possible for Zones 1,21,2, and 22.