This very flat optical incremental encoder with only 11 mm height and limit frequency of 100 kHz uses the bearing of the application. The encoder is completely wear-free. In addition this allows measurements at speeds up to 60.000 rpm. Interfaces are TTL or Line Driver for longer transmission distances. Through holes for the cover are available as an option for through shafts. In addition, the ready-made Molex plug-in connection enables convenient mounting.