The measuring gear (ZRS) is made out of a long lasting elastic plastic which enables rotary encoders to measure play free. Thereby flase measuring values are avoided when the rotating direction is reversed. The teeth shape is deived from the involute gear profile. The play compensating measuring gear was developed for applications in cranes, wind turbines and mobile machinery.

The ZRS is generally used in combination with robust encoders from the T-series with analog and digital interface.