With the optionally integrated encoders, position feedback from the motor is possible. The DC motors come standard with an electronic interference filter. They feature high-quality metal brush-commutator designs, metal gears with machined components, and a ball-bearing output shaft in version B. Additionally, there is an integrated radio interference filter, and the output shaft is made of hardened steel. In the optional version with encoder (Hall sensor), 10 pulses per revolution are provided.